wgpu/CHANGELOG.md

Change Log

Unreleased

Major Changes

wgpu::Instance::enumerate_adapters is now async & available on WebGPU

BREAKING CHANGE: enumerate_adapters is now async:

- pub fn enumerate_adapters(&self, backends: Backends) -> Vec<Adapter> {
+ pub fn enumerate_adapters(&self, backends: Backends) -> impl Future<Output = Vec<Adapter>> {

This yields (kek) two benefits:

• This method is now implemented on non-native using the standard Adapter::request_adapter(…), making enumerate_adapters a portable surface. This was previously a nontrivial pain point when an application wanted to do some of its own filtering of adapters.
• This method can now be implemented in custom backends.

By @R-Cramer4 in #8230

New LoadOp::DontCare

In the case where a renderpass unconditionally writes to all pixels in the rendertarget, Load can cause unnecessary memory traffic, and Clear can spend time unnecessarily clearing the rendertargets. DontCare is a new LoadOp which will leave the contents of the rendertarget undefined. Because this could lead to undefined behavior, this API requires that the user gives an unsafe token to use the api.

While you can use this unconditionally, on platforms where DontCare is not available, it will internally use a different load op.

load: LoadOp::DontCare(unsafe { wgpu::LoadOpDontCare::enabled() })

By @cwfitzgerald in #8549

MipmapFilterMode is split from FilterMode

This is a breaking change that aligns wgpu with spec.

SamplerDescriptor {
...
-     mipmap_filter: FilterMode::Nearest
+     mipmap_filter: MipmapFilterMode::Nearest
...
}

Multiview on all major platforms and support for multiview bitmasks

Multiview is a feature that allows rendering the same content to multiple layers of a texture. This is useful primarily in VR where you wish to display almost identical content to 2 views, just with a different perspective. Instead of using 2 draw calls or 2 instances for each object, you can use this feature.

Multiview is also called view instancing in DX12 land or vertex amplification in Metal land.

Multiview has been reworked, adding support for Metal and DX12, and adding testing and validation to wgpu itself. This change also introduces a view bitmask, a new field in RenderPassDescriptor that allows a render pass to render to multiple non-adjacent layers when using the SELECTIVE_MULTIVIEW feature. Note that this also influences apps that don't use multiview, as they have to set this mask to None.

- wgpu::RenderPassDescriptor {
-     label: None,
-     color_attachments: &color_attachments,
-     depth_stencil_attachment: None,
-     timestamp_writes: None,
-     occlusion_query_set: None,
- }
+ wgpu::RenderPassDescriptor {
+     label: None,
+     color_attachments: &color_attachments,
+     depth_stencil_attachment: None,
+     timestamp_writes: None,
+     occlusion_query_set: None,
+     multiview_mask: NonZero::new(3),
+ }

One other breaking change worth noting is that in WGSL @builtin(view_index) now requires a type of u32, where previously it required i32.

By @SupaMaggie70Incorporated in #8206.

Error scopes now use guards and are thread-local.

- device.push_error_scope(wgpu::ErrorFilter::Validation);
+ let scope = device.push_error_scope(wgpu::ErrorFilter::Validation);
  // ... perform operations on the device ...
- let error: Option<Error> = device.pop_error_scope().await;
+ let error: Option<Error> = scope.pop().await;

Device error scopes now operate on a per-thread basis. This allows them to be used easily within multithreaded contexts, without having the error scope capture errors from other threads.

When the std feature is not enabled, we have no way to differentiate between threads, so error scopes return to be global operations.

By @cwfitzgerald in #8685

Log Levels

We have received complaints about wgpu being way too log spammy at log levels info/warn/error. We have adjusted our log policy and changed logging such that info and above should be silent unless some exceptional event happens. Our new log policy is as follows:

• Error: if we can’t (for some reason, usually a bug) communicate an error any other way.
• Warning: similar, but there may be one-shot warnings about almost certainly sub-optimal.
• Info: do not use
• Debug: Used for interesting events happening inside wgpu.
• Trace: Used for all events that might be useful to either wgpu or application developers.

By @cwfitzgerald in #8579.

subgroup_{min,max}_size renamed and moved from Limits -> AdapterInfo

To bring our code in line with the WebGPU spec, we have moved information about subgroup size from limits to adapter info. Limits was not the correct place for this anyway, and we had some code special casing those limits.

Additionally we have renamed the fields to match the spec.

- let min = limits.min_subgroup_size;
+ let min = info.subgroup_min_size;
- let max = limits.max_subgroup_size;
+ let max = info.subgroup_max_size;

By @cwfitzgerald in #8609.

New Features

• Added support for transient textures on Vulkan and Metal. By @opstic in #8247
• Implement shader triangle barycentric coordinate builtins. By @atlv24 in #8320.
• Added support for binding arrays of storage textures on Metal. By @msvbg in #8464
• Added support for multisampled texture arrays on Vulkan through adapter feature MULTISAMPLE_ARRAY. By @LaylBongers in #8571.
• Added get_configuration to wgpu::Surface, that returns the current configuration of wgpu::Surface. By @sagudev in #8664.

Changes

General

• Require new enable extensions when using ray queries and position fetch (wgpu_ray_query, wgpu_ray_query_vertex_return). By @Vecvec in #8545.
• Texture now has from_custom. By @R-Cramer4 in #8315.
• Using both the wgpu command encoding APIs and CommandEncoder::as_hal_mut on the same encoder will now result in a panic.
• Allow include_spirv! and include_spirv_raw! macros to be used in constants and statics. By @clarfonthey in #8250.
• Added support for rendering onto multi-planar textures. By @noituri in #8307.
• Validation errors from CommandEncoder::finish() will report the label of the invalid encoder. By @kpreid in #8449.
• Corrected documentation of the minimum alignment of the end of a mapped range of a buffer (it is 4, not 8). By @kpreid in #8450.
• util::StagingBelt now takes a Device when it is created instead of when it is used. By @kpreid in #8462.
• wgpu_hal::vulkan::Texture API changes to handle externally-created textures and memory more flexibly. By @s-ol in #8512, #8521.

Metal

• Add support for mesh shaders. By @SupaMaggie70Incorporated in #8139

Naga

• Prevent UB with invalid ray query calls on spirv. By @Vecvec in #8390.
• Update the set of binding_array capabilities. In most cases, they are set automatically from wgpu features, and this change should not be user-visible. By @andyleiserson in #8671.

Bug Fixes

naga

• Fix a bug that resulted in the Metal error program scope variable must reside in constant address space in some cases. By @teoxoy in #8311.

General

• Fixed a bug where mapping sub-ranges of a buffer on web would fail with OperationError: GPUBuffer.getMappedRange: GetMappedRange range extends beyond buffer's mapped range. By @ryankaplan in #8349
• Reject fragment shader output locations > max_color_attachments limit. By @ErichDonGubler in #8316.
• WebGPU device requests now support the required limits maxColorAttachments and maxColorAttachmentBytesPerSample. By @evilpie in #8328
• Reject binding indices that exceed wgpu_types::Limits::max_bindings_per_bind_group when deriving a bind group layout for a pipeline. By @jimblandy in #8325.
• Removed three features from wgpu-hal which did nothing useful: "cargo-clippy", "gpu-allocator", and "rustc-hash". By @kpreid in #8357.
• wgpu_types::PollError now always implements the Error trait. By @kpreid in #8384.
• The texture subresources used by the color attachments of a render pass are no longer allowed to overlap when accessed via different texture views. By @andyleiserson in #8402.
• The STORAGE_READ_ONLY texture usage is now permitted to coexist with other read-only usages. By @andyleiserson in #8490.
• Validate that buffers are unmapped in write_buffer calls. By @ErichDonGubler in #8454.
• Add WGSL parsing for mesh shaders. By @inner-daemons in #8370.
• Shorten critical section inside present such that the snatch write lock is no longer held during present, preventing other work happening on other threads. By @cwfitzgerald in #8608.

naga

• The || and && operators now "short circuit", i.e., do not evaluate the RHS if the result can be determined from just the LHS. By @andyleiserson in #7339.

DX12

• Align copies b/w textures and buffers via a single intermediate buffer per copy when D3D12_FEATURE_DATA_D3D12_OPTIONS13.UnrestrictedBufferTextureCopyPitchSupported is false. By @ErichDonGubler in #7721.
• Fix detection of Int64 Buffer/Texture atomic features. By @cwfitzgerald in #8667.

Vulkan

• Fixed a validation error regarding atomic memory semantics. By @atlv24 in #8391.

WebGPU

• Fixed a bug where the texture aspect was not passed through when calling copy_texture_to_buffer in WebGPU, causing the copy to fail for depth/stencil textures. By @Tim-Evans-Seequent in #8445.

GLES

• Fix race when downloading texture from compute shader pass. By @SpeedCrash100 in #8527
• Fix double window class registration when dynamic libraries are used. By @Azorlogh in #8548
• Fix context loss on device initialization on GL3.3-4.1 contexts. By @cwfitzgerald in #8674.

hal

• DropCallbacks are now called after dropping all other fields of their parent structs. By @jerzywilczek in #8353

v27.0.4 (2025-10-23)

This release includes wgpu-hal version 27.0.4. All other crates remain at their previous versions.

Bug Fixes

General

• Remove fragile dependency constraint on ordered-float that prevented semver-compatible changes above 5.0.0. By @kpreid in #8371.

Vulkan

• Work around extremely poor frame pacing from AMD and Nvidia cards on Windows in Fifo and FifoRelaxed present modes. This is due to the drivers implicitly using a DXGI (Direct3D) swapchain to implement these modes and it having vastly different timing properties. See https://github.com/gfx-rs/wgpu/issues/8310 and https://github.com/gfx-rs/wgpu/issues/8354 for more information. By @cwfitzgerald in #8420.

v27.0.3 (2025-10-22)

This release includes naga, wgpu-core and wgpu-hal version 27.0.3. All other crates remain at their previous versions.

Bug Fixes

naga

• Fix a bug that resulted in the Metal error program scope variable must reside in constant address space in some cases. Backport of #8311 by @teoxoy.

General

• Remove an assertion that causes problems if CommandEncoder::as_hal_mut is used. By @andyleiserson in #8387.

DX12

• Align copies b/w textures and buffers via a single intermediate buffer per copy when D3D12_FEATURE_DATA_D3D12_OPTIONS13.UnrestrictedBufferTextureCopyPitchSupported is false. By @ErichDonGubler in #7721, backported in #8374.

v27.0.2 (2025-10-03)

Bug Fixes

DX12

• Fix device creation failures for devices that do not support mesh shaders. By @vorporeal in #8297.

v27.0.1 (2025-10-02)

Bug Fixes

• Fixed the build on docs.rs. By @cwfitzgerald in #8292.

v27.0.0 (2025-10-01)

Major Changes

Deferred command buffer actions: map_buffer_on_submit and on_submitted_work_done

You may schedule buffer mapping and a submission-complete callback to run automatically after you submit, directly from encoders, command buffers, and passes.

// Record some GPU work so the submission isn't empty and touches `buffer`.
encoder.clear_buffer(&buffer, 0, None);

// Defer mapping until this encoder is submitted.
encoder.map_buffer_on_submit(&buffer, wgpu::MapMode::Read, 0..size, |result| { .. });

// Fires after the command buffer's work is finished.
encoder.on_submitted_work_done(|| { .. });

// Automatically calls `map_async` and `on_submitted_work_done` after this submission finishes.
queue.submit([encoder.finish()]);

Available on CommandEncoder, CommandBuffer, RenderPass, and ComputePass.

By @cwfitzgerald in #8125.

Builtin Support for DXGI swapchains on top of of DirectComposition Visuals in DX12

By enabling DirectComposition support, the dx12 backend can now support transparent windows.

This creates a single IDCompositionVisual over the entire window that is used by the mfSurface. If a user wants to manage the composition tree themselves, they should create their own device and composition, and pass the relevant visual down into wgpu via SurfaceTargetUnsafe::CompositionVisual.

let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
    backend_options: wgpu::BackendOptions {
        dx12: wgpu::Dx12BackendOptions {
            presentation_system: wgpu::Dx12SwapchainKind::DxgiFromVisual,
            ..
        },
        ..
    },
    ..
});

By @n1ght-hunter in #7550.

EXPERIMENTAL_RAY_TRACING_ACCELERATION_STRUCTURE has been merged into EXPERIMENTAL_RAY_QUERY

We have merged the acceleration structure feature into the RayQuery feature. This is to help work around an AMD driver bug and reduce the feature complexity of ray tracing. In the future when ray tracing pipelines are implemented, if either feature is enabled, acceleration structures will be available.

- Features::EXPERIMENTAL_RAY_TRACING_ACCELERATION_STRUCTURE
+ Features::EXPERIMENTAL_RAY_QUERY

By @Vecvec in #7913.

New EXPERIMENTAL_PRECOMPILED_SHADERS API

We have added Features::EXPERIMENTAL_PRECOMPILED_SHADERS, replacing existing passthrough types with a unified CreateShaderModuleDescriptorPassthrough which allows passing multiple shader codes for different backends. By @SupaMaggie70Incorporated in #7834

Difference for SPIR-V passthrough:

- device.create_shader_module_passthrough(wgpu::ShaderModuleDescriptorPassthrough::SpirV(
-     wgpu::ShaderModuleDescriptorSpirV {
-         label: None,
-         source: spirv_code,
-     },
- ))
+ device.create_shader_module_passthrough(wgpu::ShaderModuleDescriptorPassthrough {
+     entry_point: "main".into(),
+     label: None,
+     spirv: Some(spirv_code),
+     ..Default::default()
})

This allows using precompiled shaders without manually checking which backend's code to pass, for example if you have shaders precompiled for both DXIL and SPIR-V.

Buffer mapping apis no longer have lifetimes

Buffer::get_mapped_range(), Buffer::get_mapped_range_mut(), and Queue::write_buffer_with() now return guard objects without any lifetimes. This makes it significantly easier to store these types in structs, which is useful for building utilities that build the contents of a buffer over time.

- let buffer_mapping_ref: wgpu::BufferView<'_>           = buffer.get_mapped_range(..);
- let buffer_mapping_mut: wgpu::BufferViewMut<'_>        = buffer.get_mapped_range_mut(..);
- let queue_write_with:   wgpu::QueueWriteBufferView<'_> = queue.write_buffer_with(..);
+ let buffer_mapping_ref: wgpu::BufferView               = buffer.get_mapped_range(..);
+ let buffer_mapping_mut: wgpu::BufferViewMut            = buffer.get_mapped_range_mut(..);
+ let queue_write_with:   wgpu::QueueWriteBufferView     = queue.write_buffer_with(..);

By @sagudev in #8046 and @cwfitzgerald in #8070.

EXPERIMENTAL_* features now require unsafe code to enable

We want to be able to expose potentially experimental features to our users before we have ensured that they are fully sound to use. As such, we now require any feature that is prefixed with EXPERIMENTAL to have a special unsafe token enabled in the device descriptor acknowledging that the features may still have bugs in them and to report any they find.

adapter.request_device(&wgpu::DeviceDescriptor {
    features: wgpu::Features::EXPERIMENTAL_MESH_SHADER,
    experimental_features: unsafe { wgpu::ExperimentalFeatures::enabled() }
    ..
})

By @cwfitzgerald in #8163.

Multi-draw indirect is now unconditionally supported when indirect draws are supported

We have removed Features::MULTI_DRAW_INDIRECT as it was unconditionally available on all platforms. RenderPass::multi_draw_indirect is now available if the device supports downlevel flag DownlevelFlags::INDIRECT_EXECUTION.

If you are using spirv-passthrough with multi-draw indirect and gl_DrawID, you can know if MULTI_DRAW_INDIRECT is being emulated by if the Feature::MULTI_DRAW_INDIRECT_COUNT feature is available on the device, this feature cannot be emulated efficicently.

By @cwfitzgerald in #8162.

wgpu::PollType::Wait has now an optional timeout

We removed wgpu::PollType::WaitForSubmissionIndex and added fields to wgpu::PollType::Wait in order to express timeouts.

Before/after for wgpu::PollType::Wait:

-device.poll(wgpu::PollType::Wait).unwrap();
-device.poll(wgpu::PollType::wait_indefinitely()).unwrap();
+device.poll(wgpu::PollType::Wait {
+      submission_index: None, // Wait for most recent submission
+      timeout: Some(std::time::Duration::from_secs(60)), // Previous behavior, but more likely you want `None` instead.
+  })
+  .unwrap();

Before/after for wgpu::PollType::WaitForSubmissionIndex:

-device.poll(wgpu::PollType::WaitForSubmissionIndex(index_to_wait_on))
+device.poll(wgpu::PollType::Wait {
+      submission_index: Some(index_to_wait_on),
+      timeout: Some(std::time::Duration::from_secs(60)), // Previous behavior, but more likely you want `None` instead.
+  })
+  .unwrap();

⚠️ Previously, both wgpu::PollType::WaitForSubmissionIndex and wgpu::PollType::Wait had a hard-coded timeout of 60 seconds.

To wait indefinitely on the latest submission, you can also use the wait_indefinitely convenience function:

device.poll(wgpu::PollType::wait_indefinitely());

By @wumpf in #8282, #8285

New Features

General

• Added mesh shader support to wgpu, with examples. Requires passthrough. By @SupaMaggie70Incorporated in #7345.
• Added support for external textures based on WebGPU's GPUExternalTexture. These allow shaders to transparently operate on potentially multiplanar source texture data in either RGB or YCbCr formats via WGSL's texture_external type. This is gated behind the Features::EXTERNAL_TEXTURE feature, which is currently only supported on DX12. By @jamienicol in #4386.
• wgpu::Device::poll can now specify a timeout via wgpu::PollType::Wait. By @wumpf in #8282 & #8285

naga

• Expose naga::front::wgsl::UnimplementedEnableExtension. By @ErichDonGubler in #8237.

Changes

General

• Command encoding now happens when CommandEncoder::finish is called, not when the individual operations are requested. This does not affect the API, but may affect performance characteristics. By @andyleiserson in #8220.
• Prevent resources for acceleration structures being created if acceleration structures are not enabled. By @Vecvec in #8036.
• Validate that each push_debug_group pairs with exactly one pop_debug_group. By @andyleiserson in #8048.
• set_viewport now requires that the supplied minimum depth value is less than the maximum depth value. By @andyleiserson in #8040.
• Validation of copy_texture_to_buffer, copy_buffer_to_texture, and copy_texture_to_texture operations more closely follows the WebGPU specification. By @andyleiserson in various PRs.
  • Copies within the same texture must not overlap.
  • Copies of multisampled or depth/stencil formats must span an entire subresource (layer).
  • Copies of depth/stencil formats must be 4B aligned.
  • For texture-buffer copies, bytes_per_row on the buffer side must be 256B-aligned, even if the transfer is a single row.
• The offset for set_vertex_buffer and set_index_buffer must be 4B aligned. By @andyleiserson in #7929.
• The offset and size of bindings are validated as fitting within the underlying buffer in more cases. By @andyleiserson in #7911.
• The function you pass to Device::on_uncaptured_error() must now implement Sync in addition to Send, and be wrapped in Arc instead of Box. In exchange for this, it is no longer possible for calling wgpu functions while in that callback to cause a deadlock (not that we encourage you to actually do that). By @kpreid in #8011.
• Make a compacted hal acceleration structure inherit a label from the base BLAS. By @Vecvec in #8103.
• The limits requested for a device must now satisfy min_subgroup_size <= max_subgroup_size. By @andyleiserson in #8085.
• Improve errors when buffer mapping is done incorrectly. Allow aliasing immutable [BufferViews]. By @cwfitzgerald in #8150.
• Require new F16_IN_F32 downlevel flag for quantizeToF16, pack2x16float, and unpack2x16float in WGSL input. By @aleiserson in #8130.
• The error message for non-copyable depth/stencil formats no longer mentions the aspect when it is not relevant. By @reima in #8156.
• Track the initialization status of buffer memory correctly when copy_texture_to_buffer skips over padding space between rows or layers, or when the start/end of a texture-buffer transfer is not 4B aligned. By @andyleiserson in #8099.

naga

• naga now requires that no type be larger than 1 GB. This limit may be lowered in the future; feedback on an appropriate value for the limit is welcome. By @andyleiserson in #7950.
• If the shader source contains control characters, naga now replaces them with U+FFFD ("replacement character") in diagnostic output. By @andyleiserson in #8049.
• Add f16 IO polyfill on Vulkan backend to enable SHADER_F16 use without requiring storageInputOutput16. By @cryvosh in #7884.
• For custom Naga backend authors: naga::proc::Namer now accepts reserved keywords using two new dedicated types, proc::{KeywordSet, CaseInsensitiveKeywordSet}. By @kpreid in #8136.
• BREAKING: Previously the WGSL storage-texture format rg11b10float was incorrectly accepted and generated by naga, but now only accepts the the correct name rg11b10ufloat instead. By @ErikWDev in #8219.
• The source() method of ShaderError no longer reports the error as its own source. By @andyleiserson in #8258.
• naga correctly ingests SPIR-V that use descriptor runtime indexing, which in turn is correctly converted into WGSLs binding array. By @hasenbanck in 8256.
• naga correctly ingests SPIR-V that loads from multi-sampled textures, which in turn is correctly converted into WGSLs texture_multisampled_2d and load operations. By @hasenbanck in 8270.
• naga implement OpImageGather and OpImageDrefGather operations when ingesting SPIR-V. By @hasenbanck in 8280.

DX12

• Allow disabling waiting for latency waitable object. By @marcpabst in #7400
• Add mesh shader support, including to the example. By @SupaMaggie70Incorporated in #8110

Bug Fixes

General

• Validate that effective buffer binding size is aligned to 4 when creating bind groups with buffer entries.. By @ErichDonGubler in 8041.

DX12

• Create an event per wait to prevent 60 second hangs in certain multithreaded scenarios. By @Vecvec in #8273.
• Fixed a bug where access to matrices with 2 rows would not work in some cases. By @andyleiserson in #7438.

EGL

• Fixed unwrap failed in context creation for some Android devices. By @uael in #8024.

Vulkan

• Fixed wrong color format+space being reported versus what is hardcoded in create_swapchain(). By @MarijnS95 in #8226.

naga

• [wgsl-in] Allow a trailing comma in @blend_src(…) attributes. By @ErichDonGubler in #8137.
• [wgsl-in] Allow a trailing comma in the list of case values inside a switch. By @reima in #8165.
• Escape, rather than strip, identifiers with Unicode. By @ErichDonGubler in 7995.

Documentation

General

• Clarify that subgroup barriers require both the SUBGROUP and SUBGROUP_BARRIER features / capabilities. By @andyleiserson in #8203.

v26.0.6 (2025-10-23)

This release includes wgpu-hal version 26.0.6. All other crates remain at their previous versions.

Bug Fixes

Vulkan

• Work around extremely poor frame pacing from AMD and Nvidia cards on Windows in Fifo and FifoRelaxed present modes. This is due to the drivers implicitly using a DXGI (Direct3D) swapchain to implement these modes and it having vastly different timing properties. See https://github.com/gfx-rs/wgpu/issues/8310 and https://github.com/gfx-rs/wgpu/issues/8354 for more information. By @cwfitzgerald in #8420.

v26.0.5 (2025-10-21)

This release includes wgpu-hal version 26.0.5. All other crates remain at their previous versions.

Bug Fixes

DX12

• Align copies b/w textures and buffers via a single intermediate buffer per copy when D3D12_FEATURE_DATA_D3D12_OPTIONS13.UnrestrictedBufferTextureCopyPitchSupported is false. By @ErichDonGubler in #7721, backported in #8375.

v26.0.4 (2025-08-07)

Bug Fixes

Vulkan

• Fix STATUS_HEAP_CORRUPTION crash when concurrently calling create_sampler. By @atlv24 in #8043, #8056.

v26.0.3 (2025-07-30)

Bug Fixes

• Fixed memory leak in vulkan backend. By @cwfitzgerald in #8031.

Bug Fixes

naga

• Fix empty if statements causing errors on spirv 1.6+. By @Vecvec in #7883.

v26.0.2 (2025-07-23)

Bug Fixes

• Fixed vulkan validation error regarding the swapchain in latest SDK. By @cwfitzgerald in #7971.
• Fixed flickering on AMD devices and crashes inside Renderdoc due to incorrect caching of VkFramebuffers when the driver re-used image view handles. By @cwfitzgerald in #7972.

Warning

There is formally a breaking change in wgpu_hal::vulkan::Device::texture_from_raw as there is now a &self receiver where there previously wasn't one. This will not affect you unless you explicitly use this api. We have gone ahead with the release as the bug was pervasive and made wgpu unusable for the affected people on v26.

v26.0.1 (2025-07-10)

Bug Fixes

• Fixed build error inside wgpu::util::initialize_adapter_from_env when std feature is not enabled. By @kpreid in #7918.
• Fixed build error occurring when the profiling dependency is configured to have profiling active. By @kpreid in #7916.
• Emit a validation error instead of panicking when a query set index is OOB. By @ErichDonGubler in #7908.

v26.0.0 (2025-07-09)

Major Features

New method TextureView::texture

You can now call texture_view.texture() to get access to the texture that a given texture view points to.

By @cwfitzgerald and @Wumpf in #7907.

as_hal calls now return guards instead of using callbacks.

Previously, if you wanted to get access to the wgpu-hal or underlying api types, you would call as_hal and get the hal type as a callback. Now the function returns a guard which dereferences to the hal type.

- device.as_hal::<hal::api::Vulkan>(|hal_device| {...});
+ let hal_device: impl Deref<Item = hal::vulkan::Device> = device.as_hal::<hal::api::Vulkan>();

By @cwfitzgerald in #7863.

Enabling Vulkan Features/Extensions

For those who are doing vulkan/wgpu interop or passthrough and need to enable features/extensions that wgpu does not expose, there is a new wgpu_hal::vulkan::Adapter::open_with_callback that allows the user to modify the pnext chains and extension lists populated by wgpu before we create a vulkan device. This should vastly simplify the experience, as previously you needed to create a device yourself.

Underlying api interop is a quickly evolving space, so we welcome all feedback!

type VkApi = wgpu::hal::api::Vulkan;
let adapter: wgpu::Adapter = ...;

let mut buffer_device_address_create_info = ash::vk::PhysicalDeviceBufferDeviceAddressFeatures { .. };
let hal_device: wgpu::hal::OpenDevice<VkApi> = adapter
    .as_hal::<VkApi>()
    .unwrap()
    .open_with_callback(
        wgpu::Features::empty(),
        &wgpu::MemoryHints::Performance,
        Some(Box::new(|args| {
            // Add the buffer device address extension.
            args.extensions.push(ash::khr::buffer_device_address::NAME);
            // Extend the create info with the buffer device address create info.
            *args.create_info = args
                .create_info
                .push_next(&mut buffer_device_address_create_info);
            // We also have access to the queue create infos if we need them.
            let _ = args.queue_create_infos;
        })),
    )
    .unwrap();

let (device, queue) = adapter
    .create_device_from_hal(hal_device, &wgpu::DeviceDescriptor { .. })
    .unwrap();

By @Vecvec in #7829.

naga

• Added no_std support with default features disabled. By @Bushrat011899 in #7585.
• [wgsl-in,ir] Add support for parsing rust-style doc comments via naga::front::glsl::Frontend::new_with_options. By @Vrixyz in #6364.
• When emitting GLSL, Uniform and Storage Buffer memory layouts are now emitted even if no explicit binding is given. By @cloone8 in #7579.
• Diagnostic rendering methods (i.e., naga::{front::wgsl::ParseError,WithSpan}::emit_error_to_string_with_path) now accept more types for their path argument via a new sealed AsDiagnosticFilePath trait. By @atlv24, @bushrat011899, and @ErichDonGubler in #7643.
• Add support for quad operations (requires SUBGROUP feature to be enabled). By @dzamkov and @valaphee in #7683.
• Add support for atomicCompareExchangeWeak in HLSL and GLSL backends. By @cryvosh in #7658

General

• Add support for astc-sliced-3d feature. By @mehmetoguzderin in #7577
• Added wgpu_hal::dx12::Adapter::as_raw(). By @tronical in ##7852
• Add support for rendering to slices of 3D texture views and single layered 2D-Array texture views (this requires VK_KHR_maintenance1 which should be widely available on newer drivers). By @teoxoy in #7596
• Add extra acceleration structure vertex formats. By @Vecvec in #7580.
• Add acceleration structure limits. By @Vecvec in #7845.
• Add support for clip-distances feature for Vulkan and GL backends. By @dzamkov in #7730
• Added wgpu_types::error::{ErrorType, WebGpuError} for classification of errors according to WebGPU's GPUError's classification scheme, and implement WebGpuError for existing errors. This allows users of wgpu-core to offload error classification onto the wgpu ecosystem, rather than having to do it themselves without sufficient information. By @ErichDonGubler in #6547.

Bug Fixes

General

• Fix error message for sampler array limit. By @LPGhatguy in #7704.
• Fix bug where using BufferSlice::get_mapped_range_as_array_buffer() on a buffer would prevent you from ever unmapping it. Note that this API has changed and is now BufferView::as_uint8array().

naga

• naga now infers the correct binding layout when a resource appears only in an assignment to _. By @andyleiserson in #7540.
• Implement dot4U8Packed and dot4I8Packed for all backends, using specialized intrinsics on SPIR-V, HLSL, and Metal if available, and polyfills everywhere else. By @robamler in #7494, #7574, and #7653.
• Add polyfilled pack4x{I,U}8Clamped built-ins to all backends and WGSL frontend. By @ErichDonGubler in #7546.
• Allow textureLoad's sample index arg to be unsigned. By @jimblandy in #7625.
• Properly convert arguments to atomic operations. By @jimblandy in #7573.
• Apply necessary automatic conversions to the value argument of textureStore. By @jimblandy in #7567.
• Properly apply WGSL's automatic conversions to the arguments to texture sampling functions. By @jimblandy in #7548.
• Properly evaluate abs(most negative abstract int). By @jimblandy in #7507.
• Generate vectorized code for [un]pack4x{I,U}8[Clamp] on SPIR-V and MSL 2.1+. By @robamler in #7664.
• Fix typing for select, which had issues particularly with a lack of automatic type conversion. By @ErichDonGubler in #7572.
• Allow scalars as the first argument of the distance built-in function. By @bernhl in #7530.
• Don't panic when handling f16 for pipeline constants, i.e., overrides in WGSL. By @ErichDonGubler in #7801.
• Prevent aliased ray queries crashing naga when writing SPIR-V out. By @Vecvec in #7759.

DX12

• Get vertex_index & instance_index builtins working for indirect draws. By @teoxoy in #7535

Vulkan

• Fix OpenBSD compilation of wgpu_hal::vulkan::drm. By @ErichDonGubler in #7810.
• Fix warnings for unrecognized present mode. By @Wumpf in #7850.

Metal

• Remove extraneous main thread warning in fn surface_capabilities(). By @jamesordner in #7692

WebGPU

• Fix setting unclipped_depth. By @atlv24 in #7841
• Implement on_submitted_work_done for WebGPU backend. By @drewcrawford in #7864

Changes

• Loosen Viewport validation requirements to match the new specs. By @ebbdrop in #7564
• wgpu and deno_webgpu now use wgpu-types::error::WebGpuError to classify errors. Any changes here are likely to be regressions; please report them if you find them! By @ErichDonGubler in #6547.

General

• Support BLAS compaction in wgpu. By @Vecvec in #7285.
• Removed MaintainBase in favor of using PollType. By @waywardmonkeys in #7508.
• The destroy functions for buffers and textures in wgpu-core are now infallible. Previously, they returned an error if called multiple times for the same object. This only affects the wgpu-core API; the wgpu API already allowed multiple destroy calls. By @andyleiserson in #7686 and #7720.
• Remove CommandEncoder::build_acceleration_structures_unsafe_tlas in favour of as_hal and apply simplifications allowed by this. By @Vecvec in #7513
• The type of the size parameter to copy_buffer_to_buffer has changed from BufferAddress to impl Into<Option<BufferAddress>>. This achieves the spec-defined behavior of the value being optional, while still accepting existing calls without changes. By @andyleiserson in #7659.
• To bring wgpu's error reporting into compliance with the WebGPU specification, the error type returned from some functions has changed, and some errors may be raised at a different time than they were previously.
  • The error type returned by many methods on CommandEncoder, RenderPassEncoder, ComputePassEncoder, and RenderBundleEncoder has changed to EncoderStateError or PassStateError. These functions will return the Ended variant of these errors if called on an encoder that is no longer active. Reporting of all other errors is deferred until a call to finish().
  • Variants holding a CommandEncoderError in the error enums ClearError, ComputePassErrorInner, QueryError, and RenderPassErrorInner have been replaced with variants holding an EncoderStateError.
  • The definition of enum CommandEncoderError has changed significantly, to reflect which errors can be raised by CommandEncoder.finish(). There are also some errors that no longer appear directly in CommandEncoderError, and instead appear nested within the RenderPass or ComputePass variants.
  • CopyError has been removed. Errors that were previously a CopyError are now a CommandEncoderError returned by finish(). (The detailed reasons for copies to fail were and still are described by TransferError, which was previously a variant of CopyError, and is now a variant of CommandEncoderError).

naga

• Mark readonly_and_readwrite_storage_textures & packed_4x8_integer_dot_product language extensions as implemented. By @teoxoy in #7543
• naga::back::hlsl::Writer::new has a new pipeline_options argument. hlsl::PipelineOptions::default() can be passed as a default. The shader_stage and entry_point members of pipeline_options can be used to write only a single entry point when using the HLSL and MSL backends (GLSL and SPIR-V already had this functionality). The Metal and DX12 HALs now write only a single entry point when loading shaders. By @andyleiserson in #7626.
• Implemented early_depth_test for SPIR-V backend, enabling SHADER_EARLY_DEPTH_TEST for Vulkan. Additionally, fixed conservative depth optimizations when using early_depth_test. The syntax for forcing early depth tests is now @early_depth_test(force) instead of @early_depth_test. By @dzamkov in #7676.
• ImplementedLanguageExtension::VARIANTS is now implemented manually rather than derived using strum (allowing strum to become a dev-only dependency) so it is no longer a member of the strum::VARIANTS trait. Unless you are using this trait as a bound this should have no effect.
• Compaction changes, by @andyleiserson in #7703:
  • process_overrides now compacts the module to remove unused items. It is no longer necessary to supply values for overrides that are not used by the active entry point.
  • The compact Cargo feature has been removed. It is no longer possible to exclude compaction support from the build.
  • compact now has an additional argument that specifies whether to remove unused functions, globals, and named types and overrides. For the previous behavior, pass KeepUnused::Yes.

D3D12

• Remove the need for dxil.dll. By @teoxoy in #7566
• Ability to get the raw IDXGIFactory4 from Instance. By @MendyBerger in #7827

Vulkan

• Use highest SPIR-V version supported by Vulkan API version. By @robamler in #7595

HAL

• Added initial no_std support to wgpu-hal. By @bushrat011899 in #7599

Documentation

General

• Remove outdated information about Adapter::request_device. By @tesselode in #7768

v25.0.2 (2025-05-24)

Bug Fixes

General

• Fix a possible deadlock within Queue::write_buffer. By @RedMindZ in #7582
• Fix raw-window-handle dependency being too lenient. By @kpreid in #7526

WebGPU

• Insert fragment pipeline constants into fragment descriptor instead of vertex descriptor. By @DerSchmale in #7621

v25.0.1 (2025-04-11)

Bug Fixes

• Fix typos in various documentation. By @waywardmonkeys in #7510.
• Fix compile error when building with profiling/profile-with-* feature enabled. By @waywardmonkeys in #7509.
• Use once_cell::race::OnceBox instead of std::sync::LazyLock to allow naga::proc::Namer::default() to be available without backend features being enabled. By @cwfitzgerald in #7517.

DX12

• Fix validation error when creating a non-mappable buffer using the committed allocation scheme. By @cwfitzgerald and @ErichDonGubler in #7519.

v25.0.0 (2025-04-10)

Major Features

Hashmaps Removed from APIs

Both PipelineCompilationOptions::constants and ShaderSource::Glsl::defines now take slices of key-value pairs instead of hashmaps. This is to prepare for no_std support and allow us to keep which hashmap hasher and such as implementation details. It also allows more easily creating these structures inline.

By @cwfitzgerald in #7133

All Backends Now Have Features

Previously, the vulkan and gles backends were non-optional on windows, linux, and android and there was no way to disable them. We have now figured out how to properly make them disablable! Additionally, if you turn on the webgl feature, you will only get the GLES backend on WebAssembly, it won't leak into native builds, like previously it might have.

Warning

If you use wgpu with default-features = false and you want to retain the vulkan and gles backends, you will need to add them to your feature list.

-wgpu = { version = "24", default-features = false, features = ["metal", "wgsl", "webgl"] }
+wgpu = { version = "25", default-features = false, features = ["metal", "wgsl", "webgl", "vulkan", "gles"] }

By @cwfitzgerald in #7076.

device.poll Api Reworked

This release reworked the poll api significantly to allow polling to return errors when polling hits internal timeout limits.

Maintain was renamed PollType. Additionally, poll now returns a result containing information about what happened during the poll.

-pub fn wgpu::Device::poll(&self, maintain: wgpu::Maintain) -> wgpu::MaintainResult
+pub fn wgpu::Device::poll(&self, poll_type: wgpu::PollType) -> Result<wgpu::PollStatus, wgpu::PollError>

-device.poll(wgpu::Maintain::Poll);
+device.poll(wgpu::PollType::Poll).unwrap();

pub enum PollType<T> {
    /// On wgpu-core based backends, block until the given submission has
    /// completed execution, and any callbacks have been invoked.
    ///
    /// On WebGPU, this has no effect. Callbacks are invoked from the
    /// window event loop.
    WaitForSubmissionIndex(T),
    /// Same as WaitForSubmissionIndex but waits for the most recent submission.
    Wait,
    /// Check the device for a single time without blocking.
    Poll,
}

pub enum PollStatus {
    /// There are no active submissions in flight as of the beginning of the poll call.
    /// Other submissions may have been queued on other threads during the call.
    ///
    /// This implies that the given Wait was satisfied before the timeout.
    QueueEmpty,

    /// The requested Wait was satisfied before the timeout.
    WaitSucceeded,

    /// This was a poll.
    Poll,
}

pub enum PollError {
    /// The requested Wait timed out before the submission was completed.
    Timeout,
}

Warning

As part of this change, WebGL's default behavior has changed. Previously device.poll(Wait) appeared as though it functioned correctly. This was a quirk caused by the bug that these PRs fixed. Now it will always return Timeout if the submission has not already completed. As many people rely on this behavior on WebGL, there is a new options in BackendOptions. If you want the old behavior, set the following on instance creation:

instance_desc.backend_options.gl.fence_behavior = wgpu::GlFenceBehavior::AutoFinish;

You will lose the ability to know exactly when a submission has completed, but device.poll(Wait) will behave the same as it does on native.

By @cwfitzgerald in #6942 and #7030.

wgpu::Device::start_capture renamed, documented, and made unsafe

- device.start_capture();
+ unsafe { device.start_graphics_debugger_capture() }
// Your code here
- device.stop_capture();
+ unsafe { device.stop_graphics_debugger_capture() }

There is now documentation to describe how this maps to the various debuggers' apis.

By @cwfitzgerald in #7470

Ensure loops generated by SPIR-V and HLSL naga backends are bounded

Make sure that all loops in shaders generated by these naga backends are bounded to avoid undefined behaviour due to infinite loops. Note that this may have a performance cost. As with the existing implementation for the MSL backend this can be disabled by using Device::create_shader_module_trusted().

By @jamienicol in #6929 and #7080.

Split up Features internally

Internally split up the Features struct and recombine them internally using a macro. There should be no breaking changes from this. This means there are also namespaces (as well as the old Features::*) for all wgpu specific features and webgpu feature (FeaturesWGPU and FeaturesWebGPU respectively) and Features::from_internal_flags which allow you to be explicit about whether features you need are available on the web too.

By @Vecvec in #6905, #7086

WebGPU compliant dual source blending feature

Previously, dual source blending was implemented with a wgpu native only feature flag and used a custom syntax in wgpu. By now, dual source blending was added to the WebGPU spec as an extension. We're now following suite and implement the official syntax.

Existing shaders using dual source blending need to be updated:

struct FragmentOutput{
-    @location(0) source0: vec4<f32>,
-    @location(0) @second_blend_source source1: vec4<f32>,
+    @location(0) @blend_src(0) source0: vec4<f32>,
+    @location(0) @blend_src(1) source1: vec4<f32>,
}

With that wgpu::Features::DUAL_SOURCE_BLENDING is now available on WebGPU.

Furthermore, GLSL shaders now support dual source blending as well via the index layout qualifier:

layout(location = 0, index = 0) out vec4 output0;
layout(location = 0, index = 1) out vec4 output1;

By @wumpf in #7144

Unify interface for SpirV shader passthrough

Replace device create_shader_module_spirv function with a generic create_shader_module_passthrough function taking a ShaderModuleDescriptorPassthrough enum as parameter.

Update your calls to create_shader_module_spirv and use create_shader_module_passthrough instead:

-    device.create_shader_module_spirv(
-        wgpu::ShaderModuleDescriptorSpirV {
-            label: Some(&name),
-            source: Cow::Borrowed(&source),
-        }
-    )
+    device.create_shader_module_passthrough(
+        wgpu::ShaderModuleDescriptorPassthrough::SpirV(
+            wgpu::ShaderModuleDescriptorSpirV {
+                label: Some(&name),
+                source: Cow::Borrowed(&source),
+            },
+        ),
+    )

By @syl20bnr in #7326.

Noop Backend

It is now possible to create a dummy wgpu device even when no GPU is available. This may be useful for testing of code which manages graphics resources. Currently, it supports reading and writing buffers, and other resource types can be created but do nothing.

To use it, enable the noop feature of wgpu, and either call Device::noop(), or add NoopBackendOptions { enable: true } to the backend options of your Instance (this is an additional safeguard beyond the Backends bits).

By @kpreid in #7063 and #7342.

SHADER_F16 feature is now available with naga shaders

Previously this feature only allowed you to use f16 on SPIR-V passthrough shaders. Now you can use it on all shaders, including WGSL, SPIR-V, and GLSL!

enable f16;

fn hello_world(a: f16) -> f16 {
    return a + 1.0h;
}

By @FL33TW00D, @ErichDonGubler, and @cwfitzgerald in #5701

Bindless support improved and validation rules changed.

Metal support for bindless has significantly improved and the limits for binding arrays have been increased.

Previously, all resources inside binding arrays contributed towards the standard limit of their type (texture_2d arrays for example would contribute to max_sampled_textures_per_shader_stage). Now these resources will only contribute towards binding-array specific limits:

• max_binding_array_elements_per_shader_stage for all non-sampler resources
• max_binding_array_sampler_elements_per_shader_stage for sampler resources.

This change has allowed the metal binding array limits to go from between 32 and 128 resources, all the way 500,000 sampled textures. Additionally binding arrays are now bound more efficiently on Metal.

This change also enabled legacy Intel GPUs to support 1M bindless resources, instead of the previous 1800.

To facilitate this change, there was an additional validation rule put in place: if there is a binding array in a bind group, you may not use dynamic offset buffers or uniform buffers in that bind group. This requirement comes from vulkan rules on UpdateAfterBind descriptors. By @cwfitzgerald in #6811, #6815, and #6952.

New Features

General

• Add Buffer methods corresponding to BufferSlice methods, so you can skip creating a BufferSlice when it offers no benefit, and BufferSlice::slice() for sub-slicing a slice. By @kpreid in #7123.
• Add BufferSlice::buffer(), BufferSlice::offset() and BufferSlice::size(). By @kpreid in #7148.
• Add impl From<BufferSlice> for BufferBinding and impl From<BufferSlice> for BindingResource, allowing BufferSlices to be easily used in creating bind groups. By @kpreid in #7148.
• Add util::StagingBelt::allocate() so the staging belt can be used to write textures. By @kpreid in #6900.
• Added CommandEncoder::transition_resources() for native API interop, and allowing users to slightly optimize barriers. By @JMS55 in #6678.
• Add wgpu_hal::vulkan::Adapter::texture_format_as_raw for native API interop. By @JMS55 in #7228.
• Support getting vertices of the hit triangle when raytracing. By @Vecvec in #7183.
• Add as_hal for both acceleration structures. By @Vecvec in #7303.
• Add Metal compute shader passthrough. Use create_shader_module_passthrough on device. By @syl20bnr in #7326.
• new Features::MSL_SHADER_PASSTHROUGH run-time feature allows providing pass-through MSL Metal shaders. By @syl20bnr in #7326.
• Added mesh shader support to wgpu_hal. By @SupaMaggie70Incorporated in #7089

naga

• Add support for unsigned types when calling textureLoad with the level parameter. By @ygdrasil-io in #7058.
• Support @must_use attribute on function declarations. By @turbocrime in #6801.
• Support for generating the candidate intersections from AABB geometry, and confirming the hits. By @kvark in #7047.
• Make naga:🔙:spv::Function::to_words write the OpFunctionEnd instruction in itself, instead of making another call after it. By @junjunjd in #7156.
• Add support for texture memory barriers. By @Devon7925 in #7173.
• Add polyfills for unpackSnorm4x8, unpackUnorm4x8, unpackSnorm2x16, unpackUnorm2x16 for GLSL versions they aren't supported in. By @DJMcNab in #7408.

Examples

• Added an example that shows how to handle datasets too large to fit in a single GPUBuffer by distributing it across many buffers, and then having the shader receive them as a binding_array of storage buffers. By @alphastrata in #6138

Changes

General

• wgpu::Instance::request_adapter() now returns Result instead of Option; the error provides information about why no suitable adapter was returned. By @kpreid in #7330.
• Support BLAS compaction in wgpu-hal. By @Vecvec in #7101.
• Avoid using default features in many dependencies, etc. By Brody in #7031
• Use hashbrown to simplify no-std support. By Brody in #6938 & #6925.
• If you use Binding Arrays in a bind group, you may not use Dynamic Offset Buffers or Uniform Buffers in that bind group. By @cwfitzgerald in #6811
• Rename instance_id and instance_custom_index to instance_index and instance_custom_data by @Vecvec in #6780

naga

• naga IR types are now available in the module naga::ir (e.g. naga::ir::Module). The original names (e.g. naga::Module) remain present for compatibility. By @kpreid in #7365.
• Refactored use statements to simplify future no_std support. By @bushrat011899 in #7256
• naga's WGSL frontend no longer allows using the & operator to take the address of a component of a vector, which is not permitted by the WGSL specification. By @andyleiserson in #7284
• naga's use of termcolor and stderr are now optional behind features of the same names. By @bushrat011899 in #7482

Vulkan

HAL queue callback support

• Add a way to notify with Queue::submit() to Vulkan's vk::Semaphore allocated outside of wgpu. By @sotaroikeda in #6813.

Bug Fixes

naga

• Fix some instances of functions which have a return type but don't return a value being incorrectly validated. By @jamienicol in #7013.
• Allow abstract expressions to be used in WGSL function return statements. By @jamienicol in #7035.
• Error if structs have two fields with the same name. By @SparkyPotato in #7088.
• Forward '--keep-coordinate-space' flag to GLSL backend in naga-cli. By @cloone8 in #7206.
• Allow template lists to have a trailing comma. By @KentSlaney in #7142.
• Allow WGSL const declarations to have abstract types. By @jamienicol in #7055 and #7222.
• Allows override-sized arrays to resolve to the same size without causing the type arena to panic. By @KentSlaney in #7082.
• Allow abstract types to be used for WGSL switch statement selector and case selector expressions. By @jamienicol in #7250.
• Apply automatic conversions to let declarations, and accept vecN() as a constructor for vectors (in any context). By @andyleiserson in #7367.
• The && and || operators are no longer allowed on vectors. By @andyleiserson in #7368.
• Prevent ray intersection function overwriting each other. By @Vecvec in #7497.
• Require that the level operand of an ImageQuery::Size expression is i32 or u32, per spec. By @jimblandy in #7426.
• Implement constant evaluation for the cross builtin. By @jimblandy in #7404.
• Properly handle automatic type conversions in calls to MathFunction builtins. By @jimblandy in #6833.

General

• Fix some validation errors when building acceleration structures. By @Vecvec in #7486.
• Avoid overflow in query set bounds check validation. By @ErichDonGubler in #6933.
• Add Flush to GL Queue::submit. By @cwfitzgerald in #6941.
• Reduce downlevel max_color_attachments limit from 8 to 4 for better GLES compatibility. By @adrian17 in #6994.
• Fix building a BLAS with a transform buffer by adding a flag to indicate usage of the transform buffer. By @Vecvec in #7062.
• Move incrementation of Device::last_acceleration_structure_build_command_index into queue submit. By @Vecvec in #7462.
• Implement indirect draw validation. By @teoxoy in #7140

Vulkan

• Stop naga causing undefined behavior when a ray query misses. By @Vecvec in #6752.
• In naga's SPIR-V backend, avoid duplicating SPIR-V OpTypePointer instructions. By @jimblandy in #7246.

Gles

• Support OpenHarmony render with gles. By @richerfu in #7085

Dx12

• Fix HLSL storage format generation. By @Vecvec in #6993 and #7104
• Fix 3D storage texture bindings. By @SparkyPotato in #7071
• Fix DX12 composite alpha modes. By @amrbashir in #7117
• Bound check dynamic buffers. By @teoxoy in #6931
• Fix size of buffer. By @teoxoy in #7310

WebGPU

• Improve efficiency of dropping read-only buffer mappings. By @kpreid in #7007.

Performance

naga

• Replace unicode-xid with unicode-ident. By @CrazyboyQCD in #7135

Documentation

• Improved documentation around pipeline caches and TextureBlitter. By @DJMcNab in #6978 and #7003.

• Improved documentation of PresentMode, buffer mapping functions, memory alignment requirements, texture formats’ automatic conversions, and various types and constants. By @kpreid in #7211 and #7283.

• Added a hello window example. By @laycookie in #6992.

Examples

• Call pre_present_notify() before presenting. By @kjarosh in #7074.

v24.0.5 (2025-05-24)

Bug Fixes

General

• Fix a possible deadlock within Queue::write_buffer. By @RedMindZ in #7582

WebGPU

• Insert fragment pipeline constants into fragment descriptor instead of vertex descriptor. By @DerSchmale in #7621

v24.0.4 (2025-04-03)

Metal

• Use resize observers for smoother resizing. By @madsmtm in #7026.

v24.0.3 (2025-03-19)

Bug Fixes

• Fix drop order in Surface, solving segfaults on exit on some systems. By @ed-2100 in #6997

v24.0.2 (2025-02-26)

Bug Fixes

• Fix GLES renderpass clears causing violation of max_color_attachments limit. By @adrian17 in #6994.
• Fix a possible deadlock within Queue::write_texture. By @metamuffin in #7004
• Decrement max_storage_buffer_binding_size by 1 to match max_buffer_size. By @minus1ms in #7217

v24.0.1 (2025-01-22)

Bug Fixes

• Fix wgpu not building with --no-default-features on when targeting wasm32-unknown-unknown. By @wumpf in #6946.
• Implement Clone on ShaderModule. By @a1phyr in #6937.
• Fix CopyExternalImageDestInfo not exported on wgpu. By @wumpf in #6962.

v24.0.0 (2025-01-15)

Major changes

Refactored Dispatch Between wgpu-core and webgpu

The crate wgpu has two different "backends", one which targets webgpu in the browser, one which targets wgpu_core on native platforms and webgl. This was previously very difficult to traverse and add new features to. The entire system was refactored to make it simpler. Additionally the new system has zero overhead if there is only one "backend" in use. You can see the new system in action by using go-to-definition on any wgpu functions in your IDE.

By @cwfitzgerald in #6619.

Most objects in wgpu are now Clone

All types in the wgpu API are now Clone. This is implemented with internal reference counting, so cloning for instance a Buffer does copies only the "handle" of the GPU buffer, not the underlying resource.

Previously, libraries using wgpu objects like Device, Buffer or Texture etc. often had to manually wrap them in a Arc to allow passing between libraries. This caused a lot of friction since if one library wanted to use a Buffer by value, calling code had to give up ownership of the resource which may interfere with other subsystems. Note that this also mimics how the WebGPU javascript API works where objects can be cloned and moved around freely.

By @cwfitzgerald in #6665.

Render and Compute Passes Now Properly Enforce Their Lifetime

A regression introduced in 23.0.0 caused lifetimes of render and compute passes to be incorrectly enforced. While this is not a soundness issue, the intent is to move an error from runtime to compile time. This issue has been fixed and restored to the 22.0.0 behavior.

Bindless (binding_array) Grew More Capabilities

• DX12 now supports PARTIALLY_BOUND_BINDING_ARRAY on Resource Binding Tier 3 Hardware. This is most D3D12 hardware D3D12 Feature Table for more information on what hardware supports this feature. By @cwfitzgerald in #6734.

Device::create_shader_module_unchecked Renamed and Now Has Configuration Options

create_shader_module_unchecked became create_shader_module_trusted.

This allows you to customize which exact checks are omitted so that you can get the correct balance of performance and safety for your use case. Calling the function is still unsafe, but now can be used to skip certain checks only on certain builds.

This also allows users to disable the workarounds in the msl-out backend to prevent the compiler from optimizing infinite loops. This can have a big impact on performance, but is not recommended for untrusted shaders.

let desc: ShaderModuleDescriptor = include_wgsl!(...)
- let module = unsafe { device.create_shader_module_unchecked(desc) };
+ let module = unsafe { device.create_shader_module_trusted(desc, wgpu::ShaderRuntimeChecks::unchecked()) };

By @cwfitzgerald and @rudderbucky in #6662.

wgpu::Instance::new now takes InstanceDescriptor by reference

Previously wgpu::Instance::new took InstanceDescriptor by value (which is overall fairly uncommon in wgpu). Furthermore, InstanceDescriptor is now cloneable.

- let instance = wgpu::Instance::new(instance_desc);
+ let instance = wgpu::Instance::new(&instance_desc);

By @wumpf in #6849.

Environment Variable Handling Overhaul

Previously how various bits of code handled reading settings from environment variables was inconsistent and unideomatic. We have unified it to (Type::from_env() or Type::from_env_or_default()) and Type::with_env for all types.

- wgpu::util::backend_bits_from_env()
+ wgpu::Backends::from_env()

- wgpu::util::power_preference_from_env()
+ wgpu::PowerPreference::from_env()

- wgpu::util::dx12_shader_compiler_from_env()
+ wgpu::Dx12Compiler::from_env()

- wgpu::util::gles_minor_version_from_env()
+ wgpu::Gles3MinorVersion::from_env()

- wgpu::util::instance_descriptor_from_env()
+ wgpu::InstanceDescriptor::from_env_or_default()

- wgpu::util::parse_backends_from_comma_list(&str)
+ wgpu::Backends::from_comma_list(&str)

By @cwfitzgerald in #6895

Backend-specific instance options are now in separate structs

In order to better facilitate growing more interesting backend options, we have put them into individual structs. This allows users to more easily understand what options can be defaulted and which they care about. All of these new structs implement from_env() and delegate to their respective from_env() methods.

- let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
-     backends: wgpu::Backends::all(),
-     flags: wgpu::InstanceFlags::default(),
-     dx12_shader_compiler: wgpu::Dx12Compiler::Dxc,
-     gles_minor_version: wgpu::Gles3MinorVersion::Automatic,
- });
+ let instance = wgpu::Instance::new(&wgpu::InstanceDescriptor {
+     backends: wgpu::Backends::all(),
+     flags: wgpu::InstanceFlags::default(),
+     backend_options: wgpu::BackendOptions {
+         dx12: wgpu::Dx12BackendOptions {
+             shader_compiler: wgpu::Dx12ShaderCompiler::Dxc,
+         },
+         gl: wgpu::GlBackendOptions {
+             gles_minor_version: wgpu::Gles3MinorVersion::Automatic,
+         },
+     },
+ });

If you do not need any of these options, or only need one backend's info use the default() impl to fill out the remaining feelds.

By @cwfitzgerald in #6895

The diagnostic(…); directive is now supported in WGSL

naga now parses diagnostic(…); directives according to the WGSL spec. This allows users to control certain lints, similar to Rust's allow, warn, and deny attributes. For example, in standard WGSL (but, notably, not naga yet—see https://github.com/gfx-rs/wgpu/issues/4369) this snippet would emit a uniformity error:

@group(0) @binding(0) var s : sampler;
@group(0) @binding(2) var tex : texture_2d<f32>;
@group(1) @binding(0) var<storage, read> ro_buffer : array<f32, 4>;

@fragment
fn main(@builtin(position) p : vec4f) -> @location(0) vec4f {
  if ro_buffer[0] == 0 {
    // Emits a derivative uniformity error during validation.
    return textureSample(tex, s, vec2(0.,0.));
  }

  return vec4f(0.);
}

…but we can now silence it with the off severity level, like so:

// Disable the diagnosic with this…
diagnostic(off, derivative_uniformity);

@group(0) @binding(0) var s : sampler;
@group(0) @binding(2) var tex : texture_2d<f32>;
@group(1) @binding(0) var<storage, read> ro_buffer : array<f32, 4>;

@fragment
fn main(@builtin(position) p : vec4f) -> @location(0) vec4f {
  if ro_buffer[0] == 0 {
    // Look ma, no error!
    return textureSample(tex, s, vec2(0.,0.));
  }

  return vec4f(0.);
}

There are some limitations to keep in mind with this new functionality:

• We support @diagnostic(…) rules as fn attributes, but prioritization for rules in statement positions (i.e., if (…) @diagnostic(…) { … } is unclear. If you are blocked by not being able to parse diagnostic(…) rules in statement positions, please let us know in https://github.com/gfx-rs/wgpu/issues/5320, so we can determine how to prioritize it!
• Standard WGSL specifies error, warning, info, and off severity levels. These are all technically usable now! A caveat, though: warning- and info-level are only emitted to stderr via the log façade, rather than being reported through a Result::Err in naga or the CompilationInfo interface in wgpu{,-core}. This will require breaking changes in naga to fix, and is being tracked by https://github.com/gfx-rs/wgpu/issues/6458.
• Not all lints can be controlled with diagnostic(…) rules. In fact, only the derivative_uniformity triggering rule exists in the WGSL standard. That said, naga contributors are excited to see how this level of control unlocks a new ecosystem of configurable diagnostics.
• Finally, diagnostic(…) rules are not yet emitted in WGSL output. This means that wgsl-in → wgsl-out is currently a lossy process. We felt that it was important to unblock users who needed diagnostic(…) rules (i.e., https://github.com/gfx-rs/wgpu/issues/3135) before we took significant effort to fix this (tracked in https://github.com/gfx-rs/wgpu/issues/6496).

By @ErichDonGubler in #6456, #6148, #6533, #6353, #6537.

New Features

naga

• Support atomic operations on fields of global structs in the SPIR-V frontend. By @schell in #6693.
• Clean up tests for atomic operations support in SPIR-V frontend. By @schell in #6692
• Fix an issue where naga CLI would incorrectly skip the first positional argument when --stdin-file-path was specified. By @ErichDonGubler in #6480.
• Fix textureNumLevels in the GLSL backend. By @magcius in #6483.
• Support 64-bit hex literals and unary operations in constants #6616.
• Implement quantizeToF16() for WGSL frontend, and WGSL, SPIR-V, HLSL, MSL, and GLSL backends. By @jamienicol in #6519.
• Add support for GLSL usampler* and isampler*. By @DavidPeicho in #6513.
• Expose Ray Query flags as constants in WGSL. Implement candidate intersections. By @kvark in #5429
• Add new vertex formats ({U,S}{int,norm}{8,16}, Float16 and Unorm8x4Bgra). By @nolanderc in #6632
• Allow for override-expressions in workgroup_size. By @KentSlaney in #6635.
• Add support for OpAtomicCompareExchange in SPIR-V frontend. By @schell in #6590.
• Implement type inference for abstract arguments to user-defined functions. By @jamienicol in #6577.
• Allow for override-expressions in array sizes. By @KentSlaney in #6654.
• pointer_composite_access WGSL language extension is implemented. By @sagudev in #6913

General

• Add unified documentation for ray-tracing. By @Vecvec in #6747
• Return submission index in map_async and on_submitted_work_done to track down completion of async callbacks. By @eliemichel in #6360.
• Move raytracing alignments into HAL instead of in core. By @Vecvec in #6563.
• Allow for statically linking DXC rather than including separate .dll files. By @DouglasDwyer in #6574.
• DeviceType and AdapterInfo now impl Hash by @cwfitzgerald in #6868
• Add build support for Apple Vision Pro. By @guusw in #6611.
• Add wgsl_language_features for obtaining available WGSL language feature by @sagudev in #6814
• Image atomic support in shaders. By @atlv24 in #6706
• 64 bit image atomic support in shaders. By @atlv24 in #5537
• Add no_std support to wgpu-types. By @bushrat011899 in #6892.

Vulkan

• Allow using some 32-bit floating-point atomic operations (load, store, add, sub, exchange) in shaders. It requires the extension VK_EXT_shader_atomic_float. By @AsherJingkongChen in #6234.

Metal

• Allow using some 32-bit floating-point atomic operations (load, store, add, sub, exchange) in shaders. It requires Metal 3.0+ with Apple 7, 8, 9 or Mac 2. By @AsherJingkongChen in #6234.
• Add build support for Apple Vision Pro. By @guusw in #6611.
• Add raw_handle method to access raw Metal textures in #6894.

D3D12

• Support DXR (DirectX Ray-tracing) in wgpu-hal. By @Vecvec in #6777

Changes

naga

• Show types of LHS and RHS in binary operation type mismatch errors. By @ErichDonGubler in #6450.
• The GLSL parser now uses less expressions for function calls. By @magcius in #6604.
• Add a note to help with a common syntax error case for global diagnostic filter directives. By @e-hat in #6718
• Change arithmetic operations between two i32 variables to wrap on overflow to match WGSL spec. By @matthew-wong1 in #6835.
• Add directives to suggestions in error message for parsing global items. By @e-hat in #6723.
• Automatic conversion for override initializers. By @sagudev in 6920

General

• Align Storage Access enums to the webgpu spec. By @atlv24 in #6642
• Make Surface::as_hal take an immutable reference to the surface. By @jerzywilczek in #9999
• Add actual sample type to CreateBindGroupError::InvalidTextureSampleType error message. By @ErichDonGubler in #6530.
• Improve binding error to give a clearer message when there is a mismatch between resource binding as it is in the shader and as it is in the binding layout. By @eliemichel in #6553.
• Surface::configure and Surface::get_current_texture are no longer fatal. By @alokedesai in #6253
• Rename BlasTriangleGeometry::index_buffer_offset to BlasTriangleGeometry::first_index. By @Vecvec in #6873

D3D12

• Avoid using FXC as fallback when the DXC container was passed at instance creation. Paths to dxcompiler.dll & dxil.dll are also now required. By @teoxoy in #6643.

Vulkan

• Add a cache for samplers, deduplicating any samplers, allowing more programs to stay within the global sampler limit. By @cwfitzgerald in #6847

HAL

• Replace usage: Range<T>, for BufferUses, TextureUses, and AccelerationStructureBarrier with a new StateTransition<T>. By @atlv24 in #6703
• Change the DropCallback API to use FnOnce instead of FnMut. By @jerzywilczek in #6482

Bug Fixes

General

• Handle query set creation failure as an internal error that loses the Device, rather than panicking. By @ErichDonGubler in #6505.
• Ensure that Features::TIMESTAMP_QUERY is set when using timestamp writes in render and compute passes. By @ErichDonGubler in #6497.
• Check for device mismatches when beginning render and compute passes. By @ErichDonGubler in #6497.
• Lower QUERY_SET_MAX_QUERIES (and enforced limits) from 8192 to 4096 to match WebGPU spec. By @ErichDonGubler in #6525.
• Allow non-filterable float on texture bindings never used with samplers when using a derived bind group layout. By @ErichDonGubler in #6531.
• Replace potentially unsound usage of PreHashedMap with FastHashMap. By @jamienicol in #6541.
• Add missing validation for timestamp writes in compute and render passes. By @ErichDonGubler in #6578, #6583.
  • Check the status of the TIMESTAMP_QUERY feature before other validation.
  • Check that indices are in-bounds for the query set.
  • Check that begin and end indices are not equal.
  • Check that at least one index is specified.
• Reject destroyed buffers in query set resolution. By @ErichDonGubler in #6579.
• Fix panic when dropping Device on some environments. By @Dinnerbone in #6681.
• Reduced the overhead of command buffer validation. By @nical in #6721.
• Set index type to NONE in get_acceleration_structure_build_sizes. By @Vecvec in #6802.
• Fix wgpu-info not showing dx12 adapters. By @wumpf in #6844.
• Use transform_buffer_offset when initialising transform_buffer. By @Vecvec in #6864.

naga

• Fix crash when a texture argument is missing. By @aedm in #6486
• Emit an error in constant evaluation, rather than crash, in certain cases where vecN constructors have less than N arguments. By @ErichDonGubler in #6508.
• Fix an error in template list matching >= in a<b>=c. By @KentSlaney in #6898.
• Correctly validate handles in override-sized array types. By @jimblandy in #6882.
• Clean up validation of Statement::ImageStore. By @jimblandy in #6729.
• In compaction, avoid cloning the type arena. By @jimblandy in #6790
• In validation, forbid cycles between global expressions and types. By @jimblandy in #6800
• Allow abstract scalars in modf and frexp results. By @jimblandy in #6821
• In the WGSL front end, apply automatic conversions to values being assigned. By @jimblandy in #6822
• Fix a leak by ensuring that types that depend on expressions are correctly compacted. By @KentSlaney in #6934.

Vulkan

• Allocate descriptors for acceleration structures. By @Vecvec in #6861.
• max_color_attachment_bytes_per_sample is now correctly set to 128. By @cwfitzgerald in #6866

D3D12

• Fix no longer showing software rasterizer adapters. By @wumpf in #6843.
• max_color_attachment_bytes_per_sample is now correctly set to 128. By @cwfitzgerald in #6866

Examples

• Add multiple render targets example. By @kaphula in #5297

Testing

• Tests the early returns in the acceleration structure build calls with empty calls. By @Vecvec in #6651.

23.0.1 (2024-11-25)

This release includes patches for wgpu, wgpu-core and wgpu-hal. All other crates remain at 23.0.0. Below changes were cherry-picked from 24.0.0 development line.

Bug fixes

General

• Fix Texture view leaks regression. By @xiaopengli89 in #6576

Metal

• Fix surface creation crashing on iOS. By @mockersf in #6535

Vulkan

• Fix surface capabilities being advertised when its query failed. By @wumpf in #6510

23.0.0 (2024-10-25)

Themes of this release

This release's theme is one that is likely to repeat for a few releases: convergence with the WebGPU specification! wgpu's design and base functionality are actually determined by two specifications: one for WebGPU, and one for the WebGPU Shading Language.

This may not sound exciting, but let us convince you otherwise! All major web browsers have committed to offering WebGPU in their environment. Even JS runtimes like Node and Deno have communities that are very interested in providing WebGPU! WebGPU is slowly eating the world, as it were. 😀 It's really important, then, that WebGPU implementations behave in ways that one would expect across all platforms. For example, if Firefox's WebGPU implementation were to break when running scripts and shaders that worked just fine in Chrome, that would mean sad users for both application authors and browser authors.

wgpu also benefits from standard, portable behavior in the same way as web browsers. Because of this behavior, it's generally fairly easy to port over usage of WebGPU in JavaScript to wgpu. It is also what lets wgpu go full circle: wgpu can be an implementation of WebGPU on native targets, but also it can use other implementations of WebGPU as a backend in JavaScript when compiled to WASM. Therefore, the same dynamic applies: if wgpu's own behavior were significantly different, then wgpu and end users would be sad, sad humans as soon as they discover places where their nice apps are breaking, right?

The answer is: yes, we do have sad, sad humans that really want their wgpu code to work everywhere. As Firefox and others use wgpu to implement WebGPU, the above example of Firefox diverging from standard is, unfortunately, today's reality. It mostly behaves the same as a standards-compliant WebGPU, but it still doesn't in many important ways. Of particular note is naga, its implementation of the WebGPU Shader Language. Shaders are pretty much a black-and-white point of failure in GPU programming; if they don't compile, then you can't use the rest of the API! And yet, it's extremely easy to run into a case like that from https://github.com/gfx-rs/wgpu/issues/4400:

fn gimme_a_float() -> f32 {
  return 42; // fails in naga, but standard WGSL happily converts to `f32`
}

We intend to continue making visible strides in converging with specifications for WebGPU and WGSL, as this release has. This is, unfortunately, one of the major reasons that wgpu has no plans to work hard at keeping a SemVer-stable interface for the foreseeable future; we have an entire platform of GPU programming functionality we have to catch up with, and SemVer stability is unfortunately in tension with that. So, for now, you're going to keep seeing major releases and breaking changes. Where possible, we'll try to make that painless, but compromises to do so don't always make sense with our limited resources.

This is also the last planned major version release of 2024; the next milestone is set for January 1st, 2025, according to our regular 12-week cadence (offset from the originally planned date of 2024-10-09 for this release 😅). We'll see you next year!

Contributor spotlight: @sagudev

This release, we'd like to spotlight the work of @sagudev, who has made significant contributions to the wgpu ecosystem this release. Among other things, they contributed a particularly notable feature where runtime-known indices are finally allowed for use with const array values. For example, this WGSL shader previously wasn't allowed:

const arr: array<u32, 4> = array(1, 2, 3, 4);

fn what_number_should_i_use(idx: u32) -> u32 {
  return arr[idx];
}

…but now it works! This is significant because this sort of shader rejection was one of the most impactful issues we are aware of for converging with the WGSL specification. There are more still to go—some of which we expect to even more drastically change how folks author shaders—but we suspect that many more will come in the next few releases, including with @sagudev's help.

We're excited for more of @sagudev's contributions via the Servo community. Oh, did we forget to mention that these contributions were motivated by their work on Servo? That's right, a third well-known JavaScript runtime is now using wgpu to implement its WebGPU implementation. We're excited to support Servo to becoming another fully fledged browsing environment this way.

Major Changes

In addition to the above spotlight, we have the following particularly interesting items to call out for this release:

wgpu-core is no longer generic over wgpu-hal backends

Dynamic dispatch between different backends has been moved from the user facing wgpu crate, to a new dynamic dispatch mechanism inside the backend abstraction layer wgpu-hal.

Whenever targeting more than a single backend (default on Windows & Linux) this leads to faster compile times and smaller binaries! This also solves a long standing issue with cargo doc failing to run for wgpu-core.

Benchmarking indicated that compute pass recording is slower as a consequence, whereas on render passes speed improvements have been observed. However, this effort simplifies many of the internals of the wgpu family of crates which we're hoping to build performance improvements upon in the future.

By @wumpf in #6069, #6099, #6100.

wgpu's resources no longer have .global_id() getters

wgpu-core's internals no longer use nor need IDs and we are moving towards removing IDs completely. This is a step in that direction.

Current users of .global_id() are encouraged to make use of the PartialEq, Eq, Hash, PartialOrd and Ord traits that have now been implemented for wgpu resources.

By @teoxoy in #6134.

set_bind_group now takes an Option for the bind group argument.

https://gpuweb.github.io/gpuweb/#programmable-passes-bind-groups specifies that bindGroup is nullable. This change is the start of implementing this part of the spec. Callers that specify a Some() value should have unchanged behavior. Handling of None values still needs to be implemented by backends.

For convenience, the set_bind_group on compute/render passes & encoders takes impl Into<Option<&BindGroup>>, so most code should still work the same.

By @bradwerth in #6216.

entry_points are now Optional

One of the changes in the WebGPU spec. (from about this time last year 😅) was to allow optional entry points in GPUProgrammableStage. In wgpu, this corresponds to a subset of fields in FragmentState, VertexState, and ComputeState as the entry_point member:

let render_pipeline = device.createRenderPipeline(wgpu::RenderPipelineDescriptor {
    module,
    entry_point: Some("cs_main"), // This is now `Option`al.
    // …
});

let compute_pipeline = device.createComputePipeline(wgpu::ComputePipelineDescriptor {
    module,
    entry_point: None, // This is now `Option`al.
    // …
});

When set to None, it's assumed that the shader only has a single entry point associated with the pipeline stage (i.e., @compute, @fragment, or @vertex). If there is not one and only one candidate entry point, then a validation error is returned. To continue the example, we might have written the above API usage with the following shader module:

// We can't use `entry_point: None` for compute pipelines with this module,
// because there are two `@compute` entry points.

@compute
fn cs_main() { /* … */ }

@compute
fn other_cs_main() { /* … */ }

// The following entry points _can_ be inferred from `entry_point: None` in a
// render pipeline, because they're the only `@vertex` and `@fragment` entry
// points:

@vertex
fn vs_main() { /* … */ }

@fragment
fn fs_main() { /* … */ }

wgpu's DX12 backend is now based on the windows crate ecosystem, instead of the d3d12 crate

wgpu has retired the d3d12 crate (based on winapi), and now uses the windows crate for interfacing with Windows. For many, this may not be a change that affects day-to-day work. However, for users who need to vet their dependencies, or who may vendor in dependencies, this may be a nontrivial migration.

By @MarijnS95 in #6006.

New Features

Wgpu

• Added initial acceleration structure and ray query support into wgpu. By @expenses @daniel-keitel @Vecvec @JMS55 @atlv24 in #6291

naga

• Support constant evaluation for firstLeadingBit and firstTrailingBit numeric built-ins in WGSL. Front-ends that translate to these built-ins also benefit from constant evaluation. By @ErichDonGubler in #5101.
• Add first and either sampling types for @interpolate(flat, …) in WGSL. By @ErichDonGubler in #6181.
• Support for more atomic ops in the SPIR-V frontend. By @schell in #5824.
• Support local const declarations in WGSL. By @sagudev in #6156.
• Implemented const_assert in WGSL. By @sagudev in #6198.
• Support polyfilling inverse in WGSL. By @chyyran in #6385.
• Add base support for parsing requires, enable, and diagnostic directives. No extensions or diagnostic filters are yet supported, but diagnostics have improved dramatically. By @ErichDonGubler in #6352, #6424, #6437.
• Include error chain information as a message and notes in shader compilation messages. By @ErichDonGubler in #6436.
• Unify naga CLI error output with the format of shader compilation messages. By @ErichDonGubler in #6436.

General

• Add VideoFrame to ExternalImageSource enum. By @jprochazk in #6170.
• Add wgpu::util::new_instance_with_webgpu_detection & wgpu::util::is_browser_webgpu_supported to make it easier to support WebGPU & WebGL in the same binary. By @wumpf in #6371.

Vulkan

• Allow using VK_GOOGLE_display_timing unsafely with the VULKAN_GOOGLE_DISPLAY_TIMING feature. By @DJMcNab in #6149.

Metal

• Implement atomicCompareExchangeWeak. By @AsherJingkongChen in #6265.
• Unless an explicit CAMetalLayer is provided, surfaces now render to a sublayer. This improves resizing behavior, fixing glitches during on window resize. By @madsmtm in #6107.

Bug Fixes

• Fix incorrect hlsl image output type conversion. By @atlv24 in #6123.

naga

• SPIR-V frontend splats depth texture sample and load results. Fixes issue #4551. By @schell in #6384.
• Accept only vec3 (not vecN) for the cross built-in. By @ErichDonGubler in #6171.
• Configure SourceLanguage when enabling debug info in SPV-out. By @kvark in #6256.
• Do not consider per-polygon and flat inputs subgroup uniform. By @magcius in #6276.
• Validate all swizzle components are either color (rgba) or dimension (xyzw) in WGSL. By @sagudev in #6187.
• Fix detection of shl overflows to detect arithmetic overflows. By @sagudev in #6186.
• Fix type parameters to vec/mat type constructors to also support aliases. By @sagudev in #6189.
• Accept global vars without explicit type. By @sagudev in #6199.
• Fix handling of phony statements, so they are actually emitted. By @sagudev in #6328.
• Added gl_DrawID to glsl and DrawIndex to spv. By @ChosenName in #6325.
• Matrices can now be indexed by value (#4337), and indexing arrays by value no longer causes excessive spilling (#6358). By @jimblandy in #6390.
• Add support for textureQueryLevels to the GLSL parser. By @magcius in #6325.
• Fix unescaped identifiers in the Metal backend shader I/O structures causing shader miscompilation. By @ErichDonGubler in #6438.

General

• If GL context creation fails retry with GLES. By @Rapdorian in #5996.
• Bump MSRV for d3d12/naga/wgpu-core/wgpu-hal/wgpu-types' to 1.76. By @wumpf in #6003.
• Print requested and supported usages on UnsupportedUsage error. By @VladasZ in #6007.
• Deduplicate bind group layouts that are created from pipelines with "auto" layouts. By @teoxoy #6049.
• Document wgpu_hal bounds-checking promises, and adapt wgpu_core's lazy initialization logic to the slightly weaker-than-expected guarantees. By @jimblandy in #6201.
• Raise validation error instead of panicking in {Render,Compute}Pipeline::get_bind_group_layout on native / WebGL. By @bgr360 in #6280.
• BREAKING: Remove the last exposed C symbols in project, located in wgpu_core::render::bundle::bundle_ffi, to allow multiple versions of wgpu to compile together. By @ErichDonGubler in #6272.
• Call flush_mapped_ranges when unmapping write-mapped buffers. By @teoxoy in #6089.
• When mapping buffers for reading, mark buffers as initialized only when they have MAP_WRITE usage. By @teoxoy in #6178.
• Add a separate pipeline constants error. By @teoxoy in #6094.
• Ensure safety of indirect dispatch by injecting a compute shader that validates the content of the indirect buffer. By @teoxoy in #5714.
• Add conversions between TextureFormat and StorageFormat. By @caelunshun in #6185

GLES / OpenGL

• Fix GL debug message callbacks not being properly cleaned up (causing UB). By @Imberflur in #6114.
• Fix calling slice::from_raw_parts with unaligned pointers in push constant handling. By @Imberflur in #6341.
• Optimise fence checking when Queue::submit is called many times per frame. By @dinnerbone in #6427.

WebGPU

• Fix JS TypeError exception in Instance::request_adapter when browser doesn't support WebGPU but wgpu not compiled with webgl support. By @bgr360 in #6197.

Vulkan

• Avoid undefined behaviour with adversarial debug label. By @DJMcNab in #6257.
• Add .index_type(vk::IndexType::NONE_KHR) when creating AccelerationStructureGeometryTrianglesDataKHR in the raytraced triangle example to prevent a validation error. By @Vecvec in #6282.

Changes

• wgpu_hal::gles::Adapter::new_external now requires the context to be current when dropping the adapter and related objects. By @Imberflur in #6114.
• Reduce the amount of debug and trace logs emitted by wgpu-core and wgpu-hal. By @nical in #6065.
• Rename Rg11b10Float to Rg11b10Ufloat. By @sagudev in #6108.
• Invalidate the device when we encounter driver-induced device loss or on unexpected errors. By @teoxoy in #6229.
• Make Vulkan error handling more robust. By @teoxoy in #6119.
• Add bounds checking to Buffer slice method. By @beholdnec in #6432.
• Replace impl From<StorageFormat> for ScalarKind with impl From<StorageFormat> for Scalar so that byte width is included. By @atlv24 in #6451.

Internal

• Tracker simplifications. By @teoxoy in #6073 & #6088.
• D3D12 cleanup. By @teoxoy in #6200.
• Use ManuallyDrop in remaining places. By @teoxoy in #6092.
• Move out invalidity from the Registry. By @teoxoy in #6243.
• Remove backend from ID. By @teoxoy in #6263.

HAL

• Change the inconsistent DropGuard based API on Vulkan and GLES to a consistent, callback-based one. By @jerzywilczek in #6164.

Documentation

• Removed some OpenGL and Vulkan references from wgpu-types documentation. Fixed Storage texel types in examples. By @Nelarius in #6271.
• Used wgpu::include_wgsl!(…) more in examples and tests. By @ErichDonGubler in #6326.

Dependency Updates

GLES

• Replace winapi code in WGL wrapper to use the windows crate. By @MarijnS95 in #6006.
• Update glutin to 0.31 with glutin-winit crate. By @MarijnS95 in #6150 and #6176.
• Implement Adapter::new_external() for WGL (just like EGL) to import an external OpenGL ES context. By @MarijnS95 in #6152.

DX12

• Replace winapi code to use the windows crate. By @MarijnS95 in #5956 and #6173.
• Get num_workgroups builtin working for indirect dispatches. By @teoxoy in #5730.

HAL

• Update parking_lot to 0.12. By @mahkoh in #6287.

v22.1.0 (2024-07-17)

This release includes wgpu, wgpu-core and naga. All other crates remain at 22.0.0.

Added

naga

• Added back implementations of PartialEq for more IR types. By @teoxoy in #6045

Bug Fixes

General

• Fix profiling with tracy. By @waywardmonkeys in #5988
• Fix function for checking bind compatibility to error instead of panic. By @sagudev #6012
• Fix crash when dropping the surface after the device. By @wumpf in #6052
• Fix length of copy in queue_write_texture. By @teoxoy in #6009
• Fix error message that is thrown in create_render_pass to no longer say compute_pass. By @matthew-wong1 #6041
• As a workaround for issue #4905, wgpu-core is undocumented unless --cfg wgpu_core_doc feature is enabled. By @kpreid in #5987

22.0.0 (2024-07-17)

Overview

Our first major version release!

For the first time ever, wgpu is being released with a major version (i.e., 22.* instead of 0.22.*)! Maintainership has decided to fully adhere to Semantic Versioning's recommendations for versioning production software. According to SemVer 2.0.0's Q&A about when to use 1.0.0 versions (and beyond):

How do I know when to release 1.0.0?

If your software is being used in production, it should probably already be 1.0.0. If you have a stable API on which users have come to depend, you should be 1.0.0. If you’re worrying a lot about backward compatibility, you should probably already be 1.0.0.

It is a well-known fact that wgpu has been used for applications and platforms already in production for years, at this point. We are often concerned with tracking breaking changes, and affecting these consumers' ability to ship. By releasing our first major version, we publicly acknowledge that this is the case. We encourage other projects in the Rust ecosystem to follow suit.

Note that while we start to use the major version number, wgpu is not "going stable", as many Rust projects do. We anticipate many breaking changes before we fully comply with the WebGPU spec., which we expect to take a small number of years.

Overview

A major (pun intended) theme of this release is incremental improvement. Among the typically large set of bug fixes, new features, and other adjustments to wgpu by the many contributors listed below, @wumpf and @teoxoy have merged a series of many simplifications to wgpu's internals and, in one case, to the render and compute pass recording APIs. Many of these change wgpu to use atomically reference-counted resource tracking (i.e., Arc<…>), rather than using IDs to manage the lifetimes of platform-specific graphics resources in a registry of separate reference counts. This has led us to diagnose and fix many long-standing bugs, and net some neat performance improvements on the order of 40% or more of some workloads.

While the above is exciting, we acknowledge already finding and fixing some (easy-to-fix) regressions from the above work. If you migrate to wgpu 22 and encounter such bugs, please engage us in the issue tracker right away!

Major Changes

Lifetime bounds on wgpu::RenderPass & wgpu::ComputePass

wgpu::RenderPass & wgpu::ComputePass recording methods (e.g. wgpu::RenderPass:set_render_pipeline) no longer impose a lifetime constraint to objects passed to a pass (like pipelines/buffers/bindgroups/query-sets etc.).

This means the following pattern works now as expected:

let mut pipelines: Vec<wgpu::RenderPipeline> = ...;
// ...
let mut cpass = encoder.begin_compute_pass(&wgpu::ComputePassDescriptor::default());
cpass.set_pipeline(&pipelines[123]);
// Change pipeline container - this requires mutable access to `pipelines` while one of the pipelines is in use.
pipelines.push(/* ... */);
// Continue pass recording.
cpass.set_bindgroup(...);

Previously, a set pipeline (or other resource) had to outlive pass recording which often affected wider systems, meaning that users needed to prove to the borrow checker that Vec<wgpu::RenderPipeline> (or similar constructs) aren't accessed mutably for the duration of pass recording.

Furthermore, you can now opt out of wgpu::RenderPass/wgpu::ComputePass's lifetime dependency on its parent wgpu::CommandEncoder using wgpu::RenderPass::forget_lifetime/wgpu::ComputePass::forget_lifetime:

fn independent_cpass<'enc>(encoder: &'enc mut wgpu::CommandEncoder) -> wgpu::ComputePass<'static> {
    let cpass: wgpu::ComputePass<'enc> = encoder.begin_compute_pass(&wgpu::ComputePassDescriptor::default());
    cpass.forget_lifetime()
}

⚠️ As long as a wgpu::RenderPass/wgpu::ComputePass is pending for a given wgpu::CommandEncoder, creation of a compute or render pass is an error and invalidates the wgpu::CommandEncoder. forget_lifetime can be very useful for library authors, but opens up an easy way for incorrect use, so use with care. This method doesn't add any additional overhead and has no side effects on pass recording.

By @wumpf in #5569, #5575, #5620, #5768 (together with @kpreid), #5671, #5794, #5884.

Querying shader compilation errors

Wgpu now supports querying shader compilation info.

This allows you to get more structured information about compilation errors, warnings and info:

...
let lighting_shader = ctx.device.create_shader_module(include_wgsl!("lighting.wgsl"));
let compilation_info = lighting_shader.get_compilation_info().await;
for message in compilation_info
    .messages
    .iter()
    .filter(|m| m.message_type == wgpu::CompilationMessageType::Error)
{
    let line = message.location.map(|l| l.line_number).unwrap_or(1);
    println!("Compile error at line {line}");
}

By @stefnotch in #5410

64 bit integer atomic support in shaders.

Add support for 64 bit integer atomic operations in shaders.

Add the following flags to wgpu_types::Features:

• SHADER_INT64_ATOMIC_ALL_OPS enables all atomic operations on atomic<i64> and atomic<u64> values.

• SHADER_INT64_ATOMIC_MIN_MAX is a subset of the above, enabling only AtomicFunction::Min and AtomicFunction::Max operations on atomic<i64> and atomic<u64> values in the Storage address space. These are the only 64-bit atomic operations available on Metal as of 3.1.

Add corresponding flags to naga::valid::Capabilities. These are supported by the WGSL front end, and all naga backends.

Platform support:

• On Direct3d 12, in D3D12_FEATURE_DATA_D3D12_OPTIONS9, if AtomicInt64OnTypedResourceSupported and AtomicInt64OnGroupSharedSupported are both available, then both wgpu features described above are available.

• On Metal, SHADER_INT64_ATOMIC_MIN_MAX is available on Apple9 hardware, and on hardware that advertises both Apple8 and Mac2 support. This also requires Metal Shading Language 2.4 or later. Metal does not yet support the more general SHADER_INT64_ATOMIC_ALL_OPS.

• On Vulkan, if the VK_KHR_shader_atomic_int64 extension is available with both the shader_buffer_int64_atomics and shader_shared_int64_atomics features, then both wgpu features described above are available.

By @atlv24 in #5383

A compatible surface is now required for request_adapter() on WebGL2 + enumerate_adapters() is now native only.

When targeting WebGL2, it has always been the case that a surface had to be created before calling request_adapter(). We now make this requirement explicit.

Validation was also added to prevent configuring the surface with a device that doesn't share the same underlying WebGL2 context since this has never worked.

Calling enumerate_adapters() when targeting WebGPU used to return an empty Vec and since we now require users to pass a compatible surface when targeting WebGL2, having enumerate_adapters() doesn't make sense.

By @teoxoy in #5901

New features

General

• Added as_hal for Buffer to access wgpu created buffers form wgpu-hal. By @JasondeWolff in #5724
• include_wgsl! is now callable in const contexts by @9SMTM6 in #5872
• Added memory allocation hints to DeviceDescriptor by @nical in #5875
  • MemoryHints::Performance, the default, favors performance over memory usage and will likely cause large amounts of VRAM to be allocated up-front. This hint is typically good for games.
  • MemoryHints::MemoryUsage favors memory usage over performance. This hint is typically useful for smaller applications or UI libraries.
  • MemoryHints::Manual allows the user to specify parameters for the underlying GPU memory allocator. These parameters are subject to change.
  • These hints may be ignored by some backends. Currently only the Vulkan and D3D12 backends take them into account.
• Add HTMLImageElement and ImageData as external source for copying images. By @Valaphee in #5668

naga

• Added -D, --defines option to naga CLI to define preprocessor macros by @theomonnom in #5859

• Added type upgrades to SPIR-V atomic support. Added related infrastructure. Tracking issue is here. By @schell in #5775.

• Implement WGSL's unpack4xI8,unpack4xU8,pack4xI8 and pack4xU8. By @VlaDexa in #5424

• Began work adding support for atomics to the SPIR-V frontend. Tracking issue is here. By @schell in #5702.

• In hlsl-out, allow passing information about the fragment entry point to omit vertex outputs that are not in the fragment inputs. By @Imberflur in #5531

• In spv-out, allow passing acceleration_structure as a function argument. By @kvark in #5961

  let writer: naga::back::hlsl::Writer = /* ... */;
  -writer.write(&module, &module_info);
  +writer.write(&module, &module_info, None);
  

• HLSL & MSL output can now be added conditionally on the target via the msl-out-if-target-apple and hlsl-out-if-target-windows features. This is used in wgpu-hal to no longer compile with MSL output when metal is enabled & MacOS isn't targeted and no longer compile with HLSL output when dx12 is enabled & Windows isn't targeted. By @wumpf in #5919

Vulkan

• Added a PipelineCache resource to allow using Vulkan pipeline caches. By @DJMcNab in #5319

WebGPU

• Added support for pipeline-overridable constants to the WebGPU backend by @DouglasDwyer in #5688

Changes

General

• Unconsumed vertex outputs are now always allowed. Removed StageError::InputNotConsumed, Features::SHADER_UNUSED_VERTEX_OUTPUT, and associated validation. By @Imberflur in #5531
• Avoid introducing spurious features for optional dependencies. By @bjorn3 in #5691
• wgpu::Error is now Sync, making it possible to be wrapped in anyhow::Error or eyre::Report. By @nolanderc in #5820
• Added benchmark suite. By @cwfitzgerald in #5694, compute passes by @wumpf in #5767
• Improve performance of .submit() by 39-64% (.submit() + .poll() by 22-32%). By @teoxoy in #5910
• The trace wgpu feature has been temporarily removed. By @teoxoy in #5975

Metal

• Removed the link Cargo feature.

  This was used to allow weakly linking frameworks. This can be achieved with putting something like the following in your .cargo/config.toml instead:

  [target.'cfg(target_vendor = "apple")']
  rustflags = ["-C", "link-args=-weak_framework Metal -weak_framework QuartzCore -weak_framework CoreGraphics"]
  

  By @madsmtm in #5752

Bug Fixes

General

• Ensure render pipelines have at least 1 target. By @ErichDonGubler in #5715
• wgpu::ComputePass now internally takes ownership of QuerySet for both wgpu::ComputePassTimestampWrites as well as timestamp writes and statistics query, fixing crashes when destroying QuerySet before ending the pass. By @wumpf in #5671
• Validate resources passed during compute pass recording for mismatching device. By @wumpf in #5779
• Fix staging buffers being destroyed too early. By @teoxoy in #5910
• Fix attachment byte cost validation panicking with native only formats. By @teoxoy in #5934
• [wgpu] Fix leaks from auto layout pipelines. By @teoxoy in #5971
• [wgpu-core] Fix length of copy in queue_write_texture (causing UB). By @teoxoy in #5973
• Add missing same device checks. By @teoxoy in #5980

GLES / OpenGL

• Fix ClearColorF, ClearColorU and ClearColorI commands being issued before SetDrawColorBuffers #5666
• Replace glClear with glClearBufferF because glDrawBuffers requires that the ith buffer must be COLOR_ATTACHMENTi or NONE #5666
• Return the unmodified version in driver_info. By @Valaphee in #5753

naga

• In spv-out don't decorate a BindingArray's type with Block if the type is a struct with a runtime array by @Vecvec in #5776
• Add packed as a keyword for GLSL by @kjarosh in #5855

v0.20.2 (2024-06-12)

This release force-bumps transitive dependencies of wgpu on wgpu-core and wgpu-hal to 0.21.1, to resolve some undefined behavior observable in the DX12 backend after upgrading to Rust 1.79 or later.

Bug Fixes

General

• Fix a CommandBuffer leak. By @cwfitzgerald and @nical in #5141

DX12

• Do not feed &"" to D3DCompile, by @workingjubilee in #5812.

v0.20.1 (2024-06-12)

This release included v0.21.0 of wgpu-core and wgpu-hal, due to breaking changes needed to solve vulkan validation issues.

Bug Fixes

This release fixes the validation errors whenever a surface is used with the vulkan backend. By @cwfitzgerald in #5681.

General

• Clean up weak references to texture views and bind groups to prevent memory leaks. By @xiaopengli89 in #5595.
• Fix segfault on exit is queue & device are dropped before surface. By @sagudev in #5640.

Metal

• Fix unrecognized selector crash on iOS 12. By @vladasz in #5744.

Vulkan

• Fix enablement of subgroup ops extension on Vulkan devices that don't support Vulkan 1.3. By @cwfitzgerald in #5624.

GLES / OpenGL

• Fix regression on OpenGL (EGL) where non-sRGB still used sRGB #5642

naga

• Work around shader consumers that have bugs handling switch statements with a single body for all cases. These are now written as do {} while(false); loops in hlsl-out and glsl-out. By @Imberflur in #5654
• In hlsl-out, defer continue statements in switches by setting a flag and breaking from the switch. This allows such constructs to work with FXC which does not support continue within a switch. By @Imberflur in #5654

v0.20.0 (2024-04-28)

Major Changes

Pipeline overridable constants

Wgpu supports now pipeline-overridable constants

This allows you to define constants in wgsl like this:

override some_factor: f32 = 42.1337; // Specifies a default of 42.1337 if it's not set.

And then set them at runtime like so on your pipeline consuming this shader:

// ...
fragment: Some(wgpu::FragmentState {
    compilation_options: wgpu::PipelineCompilationOptions {
        constants: &[("some_factor".to_owned(), 0.1234)].into(), // Sets `some_factor` to 0.1234.
        ..Default::default()
    },
    // ...
}),
// ...

By @teoxoy & @jimblandy in #5500

Changed feature requirements for timestamps

Due to a specification change write_timestamp is no longer supported on WebGPU. wgpu::CommandEncoder::write_timestamp requires now the new wgpu::Features::TIMESTAMP_QUERY_INSIDE_ENCODERS feature which is available on all native backends but not on WebGPU.

By @wumpf in #5188

Wgsl const evaluation for many more built-ins

Many numeric built-ins have had a constant evaluation implementation added for them, which allows them to be used in a const context:

abs, acos, acosh, asin, asinh, atan, atanh, cos, cosh, round, saturate, sin, sinh, sqrt, step, tan, tanh, ceil, countLeadingZeros, countOneBits, countTrailingZeros, degrees, exp, exp2, floor, fract, fma, inverseSqrt, log, log2, max, min, radians, reverseBits, sign, trunc

By @ErichDonGubler in #4879, #5098

New native-only wgsl features

Subgroup operations

The following subgroup operations are available in wgsl now:

subgroupBallot, subgroupAll, subgroupAny, subgroupAdd, subgroupMul, subgroupMin, subgroupMax, subgroupAnd, subgroupOr, subgroupXor, subgroupExclusiveAdd, subgroupExclusiveMul, subgroupInclusiveAdd, subgroupInclusiveMul, subgroupBroadcastFirst, subgroupBroadcast, subgroupShuffle, subgroupShuffleDown, subgroupShuffleUp, subgroupShuffleXor

Availability is governed by the following feature flags:

• wgpu::Features::SUBGROUP for all operations except subgroupBarrier in fragment & compute, supported on Vulkan, DX12 and Metal.
• wgpu::Features::SUBGROUP_VERTEX, for all operations except subgroupBarrier general operations in vertex shaders, supported on Vulkan
• wgpu::Features::SUBGROUP_BARRIER, for support of the subgroupBarrier operation, supported on Vulkan & Metal

Note that there currently some differences between wgpu's native-only implementation and the open WebGPU proposal.

By @exrook and @lichtso in #5301

Signed and unsigned 64 bit integer support in shaders.

wgpu::Features::SHADER_INT64 enables 64 bit integer signed and unsigned integer variables in wgsl (i64 and u64 respectively). Supported on Vulkan, DX12 (requires DXC) and Metal (with MSL 2.3+ support).

By @atlv24 and @cwfitzgerald in #5154

New features

General

• Implemented the Unorm10_10_10_2 VertexFormat by @McMackety in #5477
• wgpu-types's trace and replay features have been replaced by the serde feature. By @KirmesBude in #5149
• wgpu-core's serial-pass feature has been removed. Use serde instead. By @KirmesBude in #5149
• Added InstanceFlags::GPU_BASED_VALIDATION, which enables GPU-based validation for shaders. This is currently only supported on the DX12 and Vulkan backends; other platforms ignore this flag, for now. By @ErichDonGubler in #5146, #5046.
  • When set, this flag implies InstanceFlags::VALIDATION.
  • This has been added to the set of flags set by InstanceFlags::advanced_debugging. Since the overhead is potentially very large, the flag is not enabled by default in debug builds when using InstanceFlags::from_build_config.
  • As with other instance flags, this flag can be changed in calls to InstanceFlags::with_env with the new WGPU_GPU_BASED_VALIDATION environment variable.
• wgpu::Instance can now report which wgpu::Backends are available based on the build configuration. By @wumpf #5167

  -wgpu::Instance::any_backend_feature_enabled()
  +!wgpu::Instance::enabled_backend_features().is_empty()
  

• Breaking change: wgpu_core::pipeline::ProgrammableStageDescriptor is now optional. By @ErichDonGubler in #5305.
• Features::downlevel{_webgl2,}_features was made const by @MultisampledNight in #5343
• Breaking change: wgpu_core::pipeline::ShaderError has been moved to naga. By @stefnotch in #5410
• More as_hal methods and improvements by @JMS55 in #5452
  • Added wgpu::CommandEncoder::as_hal_mut
  • Added wgpu::TextureView::as_hal
  • wgpu::Texture::as_hal now returns a user-defined type to match the other as_hal functions

naga

• Allow user to select which MSL version to use via --metal-version with naga CLI. By @pcleavelin in #5392
• Support arrayLength for runtime-sized arrays inside binding arrays (for WGSL input and SPIR-V output). By @kvark in #5428
• Added --shader-stage and --input-kind options to naga-cli for specifying vertex/fragment/compute shaders, and frontend. by @ratmice in #5411
• Added a create_validator function to wgpu_core Device to create naga Validators. By @atlv24 #5606

WebGPU

• Implement the device_set_device_lost_callback method for ContextWebGpu. By @suti in #5438
• Add support for storage texture access modes ReadOnly and ReadWrite. By @JolifantoBambla in #5434

GLES / OpenGL

• Log an error when GLES texture format heuristics fail. By @PolyMeilex in #5266
• Cache the sample count to keep get_texture_format_features cheap. By @Dinnerbone in #5346
• Mark DEPTH32FLOAT_STENCIL8 as supported in GLES. By @Dinnerbone in #5370
• Desktop GL now also supports TEXTURE_COMPRESSION_ETC2. By @Valaphee in #5568
• Don't create a program for shader-clearing if that workaround isn't required. By @Dinnerbone in #5348.
• OpenGL will now be preferred over OpenGL ES on EGL, making it consistent with WGL. By @valaphee in #5482
• Fill out driver and driver_info, with the OpenGL flavor and version, similar to Vulkan. By @valaphee in #5482

Metal

• Metal 3.0 and 3.1 detection. By @atlv24 in #5497

DX12

• Shader Model 6.1-6.7 detection. By @atlv24 in #5498

Other performance improvements

• Simplify and speed up the allocation of internal IDs. By @nical in #5229
• Use memory pooling for UsageScopes to avoid frequent large allocations. by @robtfm in #5414
• Eager release of GPU resources comes from device.trackers. By @bradwerth in #5075
• Support disabling zero-initialization of workgroup local memory in compute shaders. By @DJMcNab in #5508

Documentation

• Improved wgpu_hal documentation. By @jimblandy in #5516, #5524, #5562, #5563, #5566, #5617, #5618
• Add mention of primitive restart in the description of PrimitiveState::strip_index_format. By @cpsdqs in #5350
• Document and tweak precise behaviour of SourceLocation. By @stefnotch in #5386 and #5410
• Give short example of WGSL push_constant syntax. By @waywardmonkeys in #5393
• Fix incorrect documentation of Limits::max_compute_workgroup_storage_size default value. By @atlv24 in #5601

Bug Fixes

General

• Fix serde feature not compiling for wgpu-types. By @KirmesBude in #5149
• Fix the validation of vertex and index ranges. By @nical in #5144 and #5156
• Fix panic when creating a surface while no backend is available. By @wumpf #5166
• Correctly compute minimum buffer size for array-typed storage and uniform vars. By @jimblandy #5222
• Fix timeout when presenting a surface where no work has been done. By @waywardmonkeys in #5200
• Fix registry leaks with de-duplicated resources. By @nical in #5244
• Fix linking when targeting android. By @ashdnazg in #5326.
• Failing to set the device lost closure will call the closure before returning. By @bradwerth in #5358.
• Fix deadlocks caused by recursive read-write lock acquisitions #5426.
• Remove exposed C symbols (extern "C" + [no_mangle]) from RenderPass & ComputePass recording. By @wumpf in #5409.
• Fix surfaces being only compatible with first backend enabled on an instance, causing failures when manually specifying an adapter. By @Wumpf in #5535.

naga

• In spv-in, remove unnecessary "gl_PerVertex" name check so unused builtins will always be skipped. Prevents validation errors caused by capability requirements of these builtins #4915. By @Imberflur in #5227.
• In spv-out, check for acceleration and ray-query types when enabling ray-query extension to prevent validation error. By @Vecvec in #5463
• Add a limit for curly brace nesting in WGSL parsing, plus a note about stack size requirements. By @ErichDonGubler in #5447.
• In hlsl-out, fix accesses on zero value expressions by generating helper functions for Expression::ZeroValue. By @Imberflur in #5587.
• Fix behavior of extractBits and insertBits when offset + count overflows the bit width. By @cwfitzgerald in #5305
• Fix behavior of integer clamp when min argument > max argument. By @cwfitzgerald in #5300.
• Fix TypeInner::scalar_width to be consistent with the rest of the codebase and return values in bytes not bits. By @atlv24 in #5532.

GLES / OpenGL

• GLSL 410 does not support layout(binding = ...), enable only for GLSL 420. By @bes in #5357
• Fixes for being able to use an OpenGL 4.1 core context provided by macOS with wgpu. By @bes in #5331.
• Fix crash when holding multiple devices on wayland/surfaceless. By @ashdnazg in #5351.
• Fix first_instance getting ignored in draw indexed when ARB_shader_draw_parameters feature is present and base_vertex is 0. By @valaphee in #5482

Vulkan

• Set object labels when the DEBUG flag is set, even if the VALIDATION flag is disabled. By @DJMcNab in #5345.
• Add safety check to wgpu_hal::vulkan::CommandEncoder to make sure discard_encoding is not called in the closed state. By @villuna in #5557
• Fix SPIR-V type capability requests to not depend on LocalType caching. By @atlv24 in #5590
• Upgrade ash to 0.38. By @MarijnS95 in #5504.

Tests

• Fix intermittent crashes on Linux in the multithreaded_compute test. By @jimblandy in #5129.
• Refactor tests to read feature flags by name instead of a hardcoded hexadecimal u64. By @atlv24 in #5155.
• Add test that verifies that we can drop the queue before using the device to create a command encoder. By @Davidster in #5211

0.19.5 (2024-07-16)

This release only releases wgpu-hal 0.19.5, which contains an important fix for DX12.

Bug Fixes

DX12

• Do not feed &"" to D3DCompile, by @workingjubilee in #5812, backported by @Elabajaba in #5833.

v0.19.4 (2024-04-17)

Bug Fixes

General

• Don't depend on bind group and bind group layout entry order in backends. This caused incorrect severely incorrect command execution and, in some cases, crashes. By @ErichDonGubler in #5421.
• Properly clean up all write_buffer/texture temporary resources. By @robtfm in #5413.
• Fix deadlock in certain situations when mapping buffers using wgpu-profiler. By @cwfitzgerald in #5517

WebGPU

• Correctly pass through timestamp queries to WebGPU. By @cwfitzgerald in #5527.

v0.19.3 (2024-03-01)

This release includes wgpu, wgpu-core, and wgpu-hal. All other crates are unchanged.

Major Changes

Vendored WebGPU Bindings from web_sys

--cfg=web_sys_unstable_apis is no longer needed in your RUSTFLAGS to compile for WebGPU!!!

While WebGPU's javascript api is stable in the browsers, the web_sys bindings for WebGPU are still improving. As such they are hidden behind the special cfg --cfg=web_sys_unstable_apis and are not available by default. Everyone who wanted to use our WebGPU backend needed to enable this cfg in their RUSTFLAGS. This was very inconvenient and made it hard to use WebGPU, especially when WebGPU is enabled by default. Additionally, the unstable APIs don't adhere to semver, so there were repeated breakages.

To combat this problem we have decided to vendor the web_sys bindings for WebGPU within the crate. Notably we are not forking the bindings, merely vendoring, so any improvements we make to the bindings will be contributed directly to upstream web_sys.

By @cwfitzgerald in #5325.

Bug Fixes

General

• Fix an issue where command encoders weren't properly freed if an error occurred during command encoding. By @ErichDonGubler in #5251.
• Fix incorrect validation causing all indexed draws on render bundles to fail. By @wumpf in #5430.

Android

• Fix linking error when targeting android without winit. By @ashdnazg in #5326.

v0.19.2 (2024-02-29)

This release includes wgpu, wgpu-core, wgpu-hal, wgpu-types, and naga. All other crates are unchanged.

Added/New Features

General

• wgpu::Id now implements PartialOrd/Ord allowing it to be put in BTreeMaps. By @cwfitzgerald and @9291Sam in #5176

OpenGL

• Log an error when OpenGL texture format heuristics fail. By @PolyMeilex in #5266

wgsl-out

• Learned to generate acceleration structure types. By @JMS55 in #5261

Documentation

• Fix link in wgpu::Instance::create_surface documentation. By @HexoKnight in #5280.
• Fix typo in wgpu::CommandEncoder::clear_buffer documentation. By @PWhiddy in #5281.
• Surface configuration incorrectly claimed that wgpu::Instance::create_surface was unsafe. By @hackaugusto in #5265.

Bug Fixes

General

• Device lost callbacks are invoked when replaced and when global is dropped. By @bradwerth in #5168
• Fix performance regression when allocating a large amount of resources of the same type. By @nical in #5229
• Fix docs.rs wasm32 builds. By @cwfitzgerald in #5310
• Improve error message when binding count limit hit. By @hackaugusto in #5298
• Remove an unnecessary clone during GLSL shader ingestion. By @a1phyr in #5118.
• Fix missing validation for Device::clear_buffer where offset + size > buffer.size was not checked when size was omitted. By @ErichDonGubler in #5282.

DX12

• Fix panic! when dropping Instance without InstanceFlags::VALIDATION. By @hakolao in #5134

OpenGL

• Fix internal format for the Etc2Rgba8Unorm format. By @andristarr in #5178
• Try to load libX11.so.6 in addition to libX11.so on linux. #5307
• Make use of GL_EXT_texture_shadow_lod to support sampling a cube depth texture with an explicit LOD. By @cmrschwarz in #5171.

glsl-in

• Fix code generation from nested loops. By @cwfitzgerald and @teoxoy in #5311

v0.19.1 (2024-01-22)

This release includes wgpu and wgpu-hal. The rest of the crates are unchanged since 0.19.0.

Bug Fixes

DX12

• Properly register all swapchain buffers to prevent error on surface present. By @dtzxporter in #5091
• Check for extra null states when creating resources. By @nical in #5096
• Fix depth-only and stencil-only views causing crashes. By @teoxoy in #5100

OpenGL

• In Surface::configure and Surface::present on Windows, fix the current GL context not being unset when releasing the lock that guards access to making the context current. This was causing other threads to panic when trying to make the context current. By @Imberflur in #5087.

WebGPU

• Improve error message when compiling WebGPU backend on wasm without the web_sys_unstable_apis set. By @rukai in #5104

Documentation

• Document Wayland specific behavior related to SurfaceTexture::present. By @i509VCB in #5093.

v0.19.0 (2024-01-17)

This release includes:

• wgpu
• wgpu-core
• wgpu-hal
• wgpu-types
• wgpu-info
• naga (skipped from 0.14 to 0.19)
• naga-cli (skipped from 0.14 to 0.19)
• d3d12 (skipped from 0.7 to 0.19)

Improved Multithreading through internal use of Reference Counting

Large refactoring of wgpu’s internals aiming at reducing lock contention, and providing better performance when using wgpu on multiple threads.

Check the blog post!

By @gents83 in #3626 and thanks also to @jimblandy, @nical, @Wumpf, @Elabajaba & @cwfitzgerald

All Public Dependencies are Re-Exported

All of wgpu's public dependencies are now re-exported at the top level so that users don't need to take their own dependencies. This includes:

• wgpu-core
• wgpu-hal
• naga
• raw_window_handle
• web_sys

Feature Flag Changes

WebGPU & WebGL in the same Binary

Enabling webgl no longer removes the webgpu backend.

Instead, there's a new (default enabled) webgpu feature that allows to explicitly opt-out of webgpu if so desired. If both webgl & webgpu are enabled, wgpu::Instance decides upon creation whether to target wgpu-core/WebGL or WebGPU. This means that adapter selection is not handled as with regular adapters, but still allows to decide at runtime whether webgpu or the webgl backend should be used using a single wasm binary. By @wumpf in #5044

naga-ir Dedicated Feature

The naga-ir feature has been added to allow you to add naga module shaders without guessing about what other features needed to be enabled to get access to it. By @cwfitzgerald in #5063.

expose-ids Feature available unconditionally

This feature allowed you to call global_id on any wgpu opaque handle to get a unique hashable identity for the given resource. This is now available without the feature flag. By @cwfitzgerald in #4841.

dx12 and metal Backend Crate Features

wgpu now exposes backend feature for the Direct3D 12 (dx12) and Metal (metal) backend. These are enabled by default, but don't do anything when not targeting the corresponding OS. By @daxpedda in #4815.

Direct3D 11 Backend Removal

This backend had no functionality, and with the recent support for GL on Desktop, which allows wgpu to run on older devices, there was no need to keep this backend. By @valaphee in #4828.

WGPU_ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER Environment Variable

This adds a way to allow a Vulkan driver which is non-compliant per VK_KHR_driver_properties to be enumerated. This is intended for testing new Vulkan drivers which are not Vulkan compliant yet. By @i509VCB in #4754.

DeviceExt::create_texture_with_data allows Mip-Major Data

Previously, DeviceExt::create_texture_with_data only allowed data to be provided in layer major order. There is now a order parameter which allows you to specify if the data is in layer major or mip major order.

    let tex = ctx.device.create_texture_with_data(
        &queue,
        &descriptor,
+       wgpu::util::TextureDataOrder::LayerMajor,
        src_data,
    );

By @cwfitzgerald in #4780.

Safe & unified Surface Creation

It is now possible to safely create a wgpu::Surface with wgpu::Instance::create_surface() by letting wgpu::Surface hold a lifetime to window. Passing an owned value window to Surface will return a wgpu::Surface<'static>.

All possible safe variants (owned windows and web canvases) are grouped using wgpu::SurfaceTarget. Conversion to wgpu::SurfaceTarget is automatic for any type implementing raw-window-handle's HasWindowHandle & HasDisplayHandle traits, i.e. most window types. For web canvas types this has to be done explicitly:

let surface: wgpu::Surface<'static> = instance.create_surface(wgpu::SurfaceTarget::Canvas(my_canvas))?;

All unsafe variants are now grouped under wgpu::Instance::create_surface_unsafe which takes the wgpu::SurfaceTargetUnsafe enum and always returns wgpu::Surface<'static>.

In order to create a wgpu::Surface<'static> without passing ownership of the window use wgpu::SurfaceTargetUnsafe::from_window:

let surface = unsafe {
  instance.create_surface_unsafe(wgpu::SurfaceTargetUnsafe::from_window(&my_window))?
};

The easiest way to make this code safe is to use shared ownership:

let window: Arc<winit::Window>;
// ...
let surface = instance.create_surface(window.clone())?;

All platform specific surface creation using points have moved into SurfaceTargetUnsafe as well. For example:

Safety by @daxpedda in #4597 Unification by @wumpf in #4984

Add partial Support for WGSL Abstract Types

Abstract types make numeric literals easier to use, by automatically converting literals and other constant expressions from abstract numeric types to concrete types when safe and necessary. For example, to build a vector of floating-point numbers, naga previously made you write:

vec3<f32>(1.0, 2.0, 3.0)

With this change, you can now simply write:

vec3<f32>(1, 2, 3)

Even though the literals are abstract integers, naga recognizes that it is safe and necessary to convert them to f32 values in order to build the vector. You can also use abstract values as initializers for global constants and global and local variables, like this:

var unit_x: vec2<f32> = vec2(1, 0);

The literals 1 and 0 are abstract integers, and the expression vec2(1, 0) is an abstract vector. However, naga recognizes that it can convert that to the concrete type vec2<f32> to satisfy the given type of unit_x. The WGSL specification permits abstract integers and floating-point values in almost all contexts, but naga's support for this is still incomplete. Many WGSL operators and builtin functions are specified to produce abstract results when applied to abstract inputs, but for now naga simply concretizes them all before applying the operation. We will expand naga's abstract type support in subsequent pull requests. As part of this work, the public types naga::ScalarKind and naga::Literal now have new variants, AbstractInt and AbstractFloat.

By @jimblandy in #4743, #4755.

Instance::enumerate_adapters now returns Vec<Adapter> instead of an ExactSizeIterator

This allows us to support WebGPU and WebGL in the same binary.

- let adapters: Vec<Adapter> = instance.enumerate_adapters(wgpu::Backends::all()).collect();
+ let adapters: Vec<Adapter> = instance.enumerate_adapters(wgpu::Backends::all());

By @wumpf in #5044

device.poll() now returns a MaintainResult instead of a bool

This is a forward looking change, as we plan to add more information to the MaintainResult in the future. This enum has the same data as the boolean, but with some useful helper functions.

- let queue_finished: bool = device.poll(wgpu::Maintain::Wait);
+ let queue_finished: bool = device.poll(wgpu::Maintain::Wait).is_queue_empty();

By @cwfitzgerald in #5053

New Features

General

• Added DownlevelFlags::VERTEX_AND_INSTANCE_INDEX_RESPECTS_RESPECTIVE_FIRST_VALUE_IN_INDIRECT_DRAW to know if @builtin(vertex_index) and @builtin(instance_index) will respect the first_vertex / first_instance in indirect calls. If this is not present, both will always start counting from 0. Currently enabled on all backends except DX12. By @cwfitzgerald in #4722.
• Added support for the FLOAT32_FILTERABLE feature (web and native, corresponds to WebGPU's float32-filterable). By @almarklein in #4759.
• GPU buffer memory is released during "lose the device". By @bradwerth in #4851.
• wgpu and wgpu-core cargo feature flags are now documented on docs.rs. By @wumpf in #4886.
• DeviceLostClosure is guaranteed to be invoked exactly once. By @bradwerth in #4862.
• Log vulkan validation layer messages during instance creation and destruction: By @exrook in #4586.
• TextureFormat::block_size is deprecated, use TextureFormat::block_copy_size instead: By @wumpf in #4647.
• Rename of DispatchIndirect, DrawIndexedIndirect, and DrawIndirect types in the wgpu::util module to DispatchIndirectArgs, DrawIndexedIndirectArgs, and DrawIndirectArgs. By @cwfitzgerald in #4723.
• Make the size parameter of encoder.clear_buffer an Option<u64> instead of Option<NonZero<u64>>. By @nical in #4737.
• Reduce the info log level noise. By @nical in #4769, #4711 and #4772
• Rename features & limits fields of DeviceDescriptor to required_features & required_limits. By @teoxoy in #4803.
• SurfaceConfiguration now exposes desired_maximum_frame_latency which was previously hard-coded to 2. By setting it to 1 you can reduce latency under the risk of making GPU & CPU work sequential. Currently, on DX12 this affects the MaximumFrameLatency, on all other backends except OpenGL the size of the swapchain (on OpenGL this has no effect). By @emilk & @wumpf in #4899

OpenGL

• @builtin(instance_index) now properly reflects the range provided in the draw call instead of always counting from 0. By @cwfitzgerald in #4722.
• Desktop GL now supports POLYGON_MODE_LINE and POLYGON_MODE_POINT. By @valaphee in #4836.

naga

• naga's WGSL front end now allows operators to produce values with abstract types, rather than concretizing their operands. By @jimblandy in #4850 and #4870.
• naga's WGSL front and back ends now have experimental support for 64-bit floating-point literals: 1.0lf denotes an f64 value. There has been experimental support for an f64 type for a while, but until now there was no syntax for writing literals with that type. As before, naga module validation rejects f64 values unless naga::valid::Capabilities::FLOAT64 is requested. By @jimblandy in #4747.
• naga constant evaluation can now process binary operators whose operands are both vectors. By @jimblandy in #4861.
• Add --bulk-validate option to naga CLI. By @jimblandy in #4871.
• naga's cargo xtask validate now runs validation jobs in parallel, using the jobserver protocol to limit concurrency, and offers a validate all subcommand, which runs all available validation types. By @jimblandy in #4902.
• Remove span and validate features. Always fully validate shader modules, and always track source positions for use in error messages. By @teoxoy in #4706.
• Introduce a new Scalar struct type for use in naga's IR, and update all frontend, middle, and backend code appropriately. By @jimblandy in #4673.
• Add more metal keywords. By @fornwall in #4707.
• Add a new naga::Literal variant, I64, for signed 64-bit literals. #4711.
• Emit and init struct member padding always. By @ErichDonGubler in #4701.
• In WGSL output, always include the i suffix on i32 literals. By @jimblandy in #4863.
• In WGSL output, always include the f suffix on f32 literals. By @jimblandy in #4869.

Bug Fixes

General

• BufferMappedRange trait is now WasmNotSendSync, i.e. it is Send/Sync if not on wasm or fragile-send-sync-non-atomic-wasm is enabled. By @wumpf in #4818.
• Align wgpu_types::CompositeAlphaMode serde serialization to spec. By @littledivy in #4940.
• Fix error message of ConfigureSurfaceError::TooLarge. By @Dinnerbone in #4960.
• Fix dropping of DeviceLostCallbackC params. By @bradwerth in #5032.
• Fixed a number of panics. By @nical in #4999, #5014, #5024, #5025, #5026, #5027, #5028 and #5042.
• No longer validate surfaces against their allowed extent range on configure. This caused warnings that were almost impossible to avoid. As before, the resulting behavior depends on the compositor. By @wumpf in #4796.

DX12

• Fixed D3D12_SUBRESOURCE_FOOTPRINT calculation for block compressed textures which caused a crash with Queue::write_texture on DX12. By @DTZxPorter in #4990.

Vulkan

• Use VK_EXT_robustness2 only when not using an outdated intel iGPU driver. By @TheoDulka in #4602.

WebGPU

• Allow calling BufferSlice::get_mapped_range multiple times on the same buffer slice (instead of throwing a Javascript exception). By @DouglasDwyer in #4726.

WGL

• Create a hidden window per wgpu::Instance instead of sharing a global one. By @Zoxc in #4603

naga

• Make module compaction preserve the module's named types, even if they are unused. By @jimblandy in #4734.
• Improve algorithm used by module compaction. By @jimblandy in #4662.
• When reading GLSL, fix the argument types of the double-precision floating-point overloads of the dot, reflect, distance, and ldexp builtin functions. Correct the WGSL generated for constructing 64-bit floating-point matrices. Add tests for all the above. By @jimblandy in #4684.
• Allow naga's IR types to represent matrices with elements elements of any scalar kind. This makes it possible for naga IR types to represent WGSL abstract matrices. By @jimblandy in #4735.
• Preserve the source spans for constants and expressions correctly across module compaction. By @jimblandy in #4696.
• Record the names of WGSL alias declarations in naga IR Types. By @jimblandy in #4733.

Metal

• Allow the COPY_SRC usage flag in surface configuration. By @Toqozz in #4852.

Examples

• remove winit dependency from hello-compute example. By @psvri in #4699
• hello-compute example fix failure with wgpu error: Validation Error if arguments are missing. By @vilcans in #4939.
• Made the examples page not crash on Chrome on Android, and responsive to screen sizes. By @Dinnerbone in #4958.

v0.18.2 (2023-12-06)

This release includes naga version 0.14.2. The crates wgpu-core, wgpu-hal are still at 0.18.1 and the crates wgpu and wgpu-types are still at 0.18.0.

Bug Fixes

naga

• When evaluating const-expressions and generating SPIR-V, properly handle Compose expressions whose operands are Splat expressions. Such expressions are created and marked as constant by the constant evaluator. By @jimblandy in #4695.

v0.18.1 (2023-11-15)

(naga version 0.14.1)

Bug Fixes

General

• Fix panic in Surface::configure in debug builds. By @cwfitzgerald in #4635
• Fix crash when all the following are true: By @teoxoy in ##4642
  • Passing a naga module directly to Device::create_shader_module.
  • InstanceFlags::DEBUG is enabled.

DX12

• Always use HLSL 2018 when using DXC to compile HLSL shaders. By @daxpedda in #4629

Metal

• In Metal Shading Language output, fix issue where local variables were sometimes using variable names from previous functions. By @DJMcNab in #4594

v0.18.0 (2023-10-25)

For naga changelogs at or before v0.14.0. See naga's changelog.

Desktop OpenGL 3.3+ Support on Windows

We now support OpenGL on Windows! This brings support for a vast majority of the hardware that used to be covered by our DX11 backend. As of this writing we support OpenGL 3.3+, though there are efforts to reduce that further.

This allows us to cover the last 12 years of Intel GPUs (starting with Ivy Bridge; aka 3xxx), and the last 16 years of AMD (starting with Terascale; aka HD 2000) / NVidia GPUs (starting with Tesla; aka GeForce 8xxx).

By @Zoxc in #4248

Timestamp Queries Supported on Metal and OpenGL

Timestamp queries are now supported on both Metal and Desktop OpenGL. On Apple chips on Metal, they only support timestamp queries in command buffers or in the renderpass descriptor, they do not support them inside a pass.

Metal: By @Wumpf in #4008 OpenGL: By @Zoxc in #4267

Render/Compute Pass Query Writes

Addition of the TimestampWrites type to compute and render pass descriptors to allow profiling on tilers which do not support timestamps inside passes.

Added an example to demonstrate the various kinds of timestamps.

Additionally, metal now supports timestamp queries!

By @FL33TW00D & @wumpf in #3636.

Occlusion Queries

We now support binary occlusion queries! This allows you to determine if any of the draw calls within the query drew any pixels.

Use the new occlusion_query_set field on RenderPassDescriptor to give a query set that occlusion queries will write to.

let mut rpass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
    // ...
+   occlusion_query_set: Some(&my_occlusion_query_set),
});

Within the renderpass do the following to write the occlusion query results to the query set at the given index:

rpass.begin_occlusion_query(index);
rpass.draw(...);
rpass.draw(...);
rpass.end_occlusion_query();

These are binary occlusion queries, so the result will be either 0 or an unspecified non-zero value.

By @Valaphee in #3402

Shader Improvements

// WGSL constant expressions are now supported!
const BLAH: u32 = 1u + 1u;

// `rgb10a2uint` and `bgra8unorm` can now be used as a storage image format.
var image: texture_storage_2d<rgb10a2uint, write>;
var image: texture_storage_2d<bgra8unorm, write>;

// You can now use dual source blending!
struct FragmentOutput{
    @location(0) source1: vec4<f32>,
    @location(0) @second_blend_source source2: vec4<f32>,
}

// `modf`/`frexp` now return structures
let result = modf(1.5);
result.fract == 0.5;
result.whole == 1.0;

let result = frexp(1.5);
result.fract == 0.75;
result.exponent == 2i;

// `modf`/`frexp` are currently disabled on GLSL and SPIR-V input.

Shader Validation Improvements

// Cannot get pointer to a workgroup variable
fn func(p: ptr<workgroup, u32>); // ERROR

// Cannot create Inf/NaN through constant expressions
const INF: f32 = 3.40282347e+38 + 1.0; // ERROR
const NAN: f32 = 0.0 / 0.0; // ERROR

// `outerProduct` function removed

// Error on repeated or missing `@workgroup_size()`
@workgroup_size(1) @workgroup_size(2) // ERROR
fn compute_main() {}

// Error on repeated attributes.
fn fragment_main(@location(0) @location(0) location_0: f32) // ERROR

RenderPass StoreOp is now Enumeration

wgpu::Operations::store used to be an underdocumented boolean value, causing misunderstandings of the effect of setting it to false.

The API now more closely resembles WebGPU which distinguishes between store and discard, see WebGPU spec on GPUStoreOp.

// ...
depth_ops: Some(wgpu::Operations {
    load: wgpu::LoadOp::Clear(1.0),
-   store: false,
+   store: wgpu::StoreOp::Discard,
}),
// ...

By @wumpf in #4147

Instance Descriptor Settings

The instance descriptor grew two more fields: flags and gles_minor_version.

flags allow you to toggle the underlying api validation layers, debug information about shaders and objects in capture programs, and the ability to discard labels

gles_minor_version is a rather niche feature that allows you to force the GLES backend to use a specific minor version, this is useful to get ANGLE to enable more than GLES 3.0.

let instance = wgpu::Instance::new(InstanceDescriptor {
    ...
+   flags: wgpu::InstanceFlags::default()
+   gles_minor_version: wgpu::Gles3MinorVersion::Automatic,
});

gles_minor_version: By @PJB3005 in #3998 flags: By @nical in #4230

Many New Examples!

• Added the following examples: By @JustAnotherCodemonkey in #3885.
  • repeated-compute
  • storage-texture
  • render-to-texture
  • uniform-values
  • hello-workgroups
  • hello-synchronization

Revamped Testing Suite

Our testing harness was completely revamped and now automatically runs against all gpus in the system, shows the expected status of every test, and is tolerant to flakes.

Additionally, we have filled out our CI to now run the latest versions of WARP and Mesa. This means we can test even more features on CI than before.

By @cwfitzgerald in #3873

The GLES backend is now optional on macOS

The angle feature flag has to be set for the GLES backend to be enabled on Windows & macOS.

By @teoxoy in #4185

Added/New Features

• Re-export naga. By @exrook in #4172
• Add WinUI 3 SwapChainPanel support. By @ddrboxman in #4191

Changes

General

• Omit texture store bound checks since they are no-ops if out of bounds on all APIs. By @teoxoy in #3975
• Validate DownlevelFlags::READ_ONLY_DEPTH_STENCIL. By @teoxoy in #4031
• Add validation in accordance with WebGPU setViewport valid usage for x, y and this.[[attachment_size]]. By @James2022-rgb in #4058
• wgpu::CreateSurfaceError and wgpu::RequestDeviceError now give details of the failure, but no longer implement PartialEq and cannot be constructed. By @kpreid in #4066 and #4145
• Make WGPU_POWER_PREF=none a valid value. By @fornwall in 4076
• Support dual source blending in OpenGL ES, Metal, Vulkan & DX12. By @freqmod in 4022
• Add stub support for device destroy and device validity. By @bradwerth in 4163 and in 4212
• Add trace-level logging for most entry points in wgpu-core By @nical in 4183
• Add Rgb10a2Uint format. By @teoxoy in 4199
• Validate that resources are used on the right device. By @nical in 4207
• Expose instance flags.
• Add support for the bgra8unorm-storage feature. By @jinleili and @nical in #4228
• Calls to lost devices now return DeviceError::Lost instead of DeviceError::Invalid. By @bradwerth in #4238
• Let the "strict_asserts" feature enable check that wgpu-core's lock-ordering tokens are unique per thread. By @jimblandy in #4258
• Allow filtering labels out before they are passed to GPU drivers by @nical in https://github.com/gfx-rs/wgpu/pull/4246
• DeviceLostClosure callback mechanism provided so user agents can resolve GPUDevice.lost Promises at the appropriate time by @bradwerth in #4645

Vulkan

• Rename wgpu_hal::vulkan::Instance::required_extensions to desired_extensions. By @jimblandy in #4115
• Don't bother calling vkFreeCommandBuffers when vkDestroyCommandPool will take care of that for us. By @jimblandy in #4059

DX12

• Bump gpu-allocator to 0.23. By @Elabajaba in #4198

Documentation

• Use WGSL for VertexFormat example types. By @ScanMountGoat in #4035
• Fix description of Features::TEXTURE_COMPRESSION_ASTC_HDR in #4157

Bug Fixes

General

• Derive storage bindings via naga::StorageAccess instead of naga::GlobalUse. By @teoxoy in #3985.
• Queue::on_submitted_work_done callbacks will now always be called after all previous BufferSlice::map_async callbacks, even when there are no active submissions. By @cwfitzgerald in #4036.
• Fix clear texture views being leaked when wgpu::SurfaceTexture is dropped before it is presented. By @rajveermalviya in #4057.
• Add Feature::SHADER_UNUSED_VERTEX_OUTPUT to allow unused vertex shader outputs. By @Aaron1011 in #4116.
• Fix a panic in surface_configure. By @nical in #4220 and #4227
• Pipelines register their implicit layouts in error cases. By @bradwerth in #4624
• Better handle explicit destruction of textures and buffers. By @nical in #4657

Vulkan

• Fix enabling wgpu::Features::PARTIALLY_BOUND_BINDING_ARRAY not being actually enabled in vulkan backend. By @39ali in#3772.
• Don't pass vk::InstanceCreateFlags::ENUMERATE_PORTABILITY_KHR unless the VK_KHR_portability_enumeration extension is available. By @jimblandy in#4038.
• Enhancement of [#4038], using ash's definition instead of hard-coded c_str. By @hybcloud in#4044.
• Enable vulkan presentation on (Linux) Intel Mesa >= v21.2. By @flukejones in#4110

DX12

• DX12 doesn't support `Features::POLYGON_MODE_POINT``. By @teoxoy in #4032.
• Set Features::VERTEX_WRITABLE_STORAGE based on the right feature level. By @teoxoy in #4033.

Metal

• Ensure that MTLCommandEncoder calls endEncoding before it is deallocated. By @bradwerth in #4023

WebGPU

• Ensure that limit requests and reporting is done correctly. By @OptimisticPeach in #4107
• Validate usage of polygon mode. By @teoxoy in #4196

GLES

• enable/disable blending per attachment only when available (on ES 3.2 or higher). By @teoxoy in #4234

Documentation

• Add an overview of RenderPass and how render state works. By @kpreid in #4055

Examples

• Created wgpu-example::utils module to contain misc functions and such that are common code but aren't part of the example framework. Add to it the functions output_image_wasm and output_image_native, both for outputting Vec<u8> RGBA images either to the disc or the web page. By @JustAnotherCodemonkey in #3885.
• Removed capture example as it had issues (did not run on wasm) and has been replaced by render-to-texture (see above). By @JustAnotherCodemonkey in #3885.

v0.17.2 (2023-10-03)

Bug Fixes

Vulkan

• Fix x11 hang while resizing on vulkan. @Azorlogh in #4184.

v0.17.1 (2023-09-27)

Added/New Features

• Add get_mapped_range_as_array_buffer for faster buffer read-backs in wasm builds. By @ryankaplan in [#4042] (https://github.com/gfx-rs/wgpu/pull/4042).

Bug Fixes

DX12

• Fix panic on resize when using DX12. By @cwfitzgerald in #4106

Vulkan

• Suppress validation error caused by OBS layer. This was also fixed upstream. By @cwfitzgerald in #4002
• Work around bug in nvidia's vkCmdFillBuffer implementation. By @cwfitzgerald in #4132.

v0.17.0 (2023-07-20)

This is the first release that featured wgpu-info as a binary crate for getting information about what devices wgpu sees in your system. It can dump the information in both human readable format and json.

Major Changes

This release was fairly minor as breaking changes go.

wgpu types now !Send !Sync on wasm

Up until this point, wgpu has made the assumption that threads do not exist on wasm. With the rise of libraries like wasm_thread making it easier and easier to do wasm multithreading this assumption is no longer sound. As all wgpu objects contain references into the JS heap, they cannot leave the thread they started on.

As we understand that this change might be very inconvenient for users who don't care about wasm threading, there is a crate feature which re-enables the old behavior: fragile-send-sync-non-atomic-wasm. So long as you don't compile your code with -Ctarget-feature=+atomics, Send and Sync will be implemented again on wgpu types on wasm. As the name implies, especially for libraries, this is very fragile, as you don't know if a user will want to compile with atomics (and therefore threads) or not.

By @daxpedda in #3691

Power Preference is now optional

The power_preference field of RequestAdapterOptions is now optional. If it is PowerPreference::None, we will choose the first available adapter, preferring GPU adapters over CPU adapters.

By @Aaron1011 in #3903

initialize_adapter_from_env argument changes

Removed the backend_bits parameter from initialize_adapter_from_env and initialize_adapter_from_env_or_default. If you want to limit the backends used by this function, only enable the wanted backends in the instance.

Added a compatible surface parameter, to ensure the given device is able to be presented onto the given surface.

- wgpu::util::initialize_adapter_from_env(instance, backend_bits);
+ wgpu::util::initialize_adapter_from_env(instance, Some(&compatible_surface));

By @fornwall in #3904 and #3905

Misc Breaking Changes

• Change AdapterInfo::{device,vendor} to be u32 instead of usize. By @ameknite in #3760

Changes

• Added support for importing external buffers using buffer_from_raw (Dx12, Metal, Vulkan) and create_buffer_from_hal. By @AdrianEddy in #3355

Vulkan

• Work around Vulkan-ValidationLayers#5671 by ignoring reports of violations of VUID-vkCmdEndDebugUtilsLabelEXT-commandBuffer-01912. By @jimblandy in #3809.

Added/New Features

General

• Empty scissor rects are allowed now, matching the specification. by @PJB3005 in #3863.
• Add back components info to TextureFormats. By @teoxoy in #3843.
• Add get_mapped_range_as_array_buffer for faster buffer read-backs in wasm builds. By @ryankaplan in [#4042] (https://github.com/gfx-rs/wgpu/pull/4042).

Documentation

• Better documentation for draw, draw_indexed, set_viewport and set_scissor_rect. By @genusistimelord in #3860
• Fix link to GPUVertexBufferLayout. By @fornwall in #3906
• Document feature requirements for DEPTH32FLOAT_STENCIL8 by @ErichDonGubler in #3734.
• Flesh out docs. for AdapterInfo::{device,vendor} by @ErichDonGubler in #3763.
• Spell out which sizes are in bytes. By @jimblandy in #3773.
• Validate that descriptor.usage is not empty in create_buffer by @nical in #3928
• Update max_bindings_per_bind_group limit to reflect spec changes by @ErichDonGubler and @nical in #3943 #3942
• Add better docs for Limits, listing the actual limits returned by downlevel_defaults and downlevel_webgl2_defaults by @JustAnotherCodemonkey in #3988

Bug Fixes

General

• Fix order of arguments to glPolygonOffset by @komadori in #3783.
• Fix OpenGL/EGL backend not respecting non-sRGB texture formats in SurfaceConfiguration. by @liquidev in #3817
• Make write- and read-only marked buffers match non-readonly layouts. by @fornwall in #3893
• Fix leaking X11 connections. by @wez in #3924
• Fix ASTC feature selection in the webgl backend. by @expenses in #3934
• Fix Multiview to disable validation of TextureViewDimension and ArrayLayerCount. By @MalekiRe in #3779.

Vulkan

• Fix incorrect aspect in barriers when using emulated Stencil8 textures. By @cwfitzgerald in #3833.
• Implement depth-clip-control using depthClamp instead of VK_EXT_depth_clip_enable. By @AlbinBernhardssonARM #3892.
• Fix enabling wgpu::Features::PARTIALLY_BOUND_BINDING_ARRAY not being actually enabled in vulkan backend. By @39ali in#3772.

Metal

• Fix renderpasses being used inside of renderpasses. By @cwfitzgerald in #3828
• Support (simulated) visionOS. By @jinleili in #3883

DX12

• Disable suballocation on Intel Iris(R) Xe. By @xiaopengli89 in #3668
• Change the max_buffer_size limit from u64::MAX to i32::MAX. By @nical in #4020

WebGPU

• Use get_preferred_canvas_format() to fill formats of SurfaceCapabilities. By @jinleili in #3744

Examples

• Publish examples to wgpu.rs on updates to trunk branch instead of gecko. By @paul-hansen in #3750
• Ignore the exception values generated by the winit resize event. By @jinleili in #3916

v0.16.3 (2023-07-19)

Changes

General

• Make the Id type that is exposed when using the expose-ids feature implement Send and Sync again. This was unintentionally changed by the v0.16.0 release and is now fixed.

v0.16.2 (2023-07-09)

Changes

DX12

• Increase the max_storage_buffers_per_shader_stage and max_storage_textures_per_shader_stage limits based on what the hardware supports. by @Elabajaba in [#3798]https://github.com/gfx-rs/wgpu/pull/3798

v0.16.1 (2023-05-24)

Bug Fixes

• Fix missing 4X MSAA support on some OpenGL backends. By @emilk in #3780

General

• Fix crash on dropping wgpu::CommandBuffer. By @wumpf in #3726.
• Use u32s internally for bind group indices, rather than u8. By @ErichDonGubler in #3743.

WebGPU

• Fix crash when calling create_surface_from_canvas. By @grovesNL in #3718

v0.16.0 (2023-04-19)

Major changes

Shader Changes

type has been replaced with alias to match with upstream WebGPU.

- type MyType = vec4<u32>;
+ alias MyType = vec4<u32>;

TextureFormat info API

The TextureFormat::describe function was removed in favor of separate functions: block_dimensions, is_compressed, is_srgb, required_features, guaranteed_format_features, sample_type and block_size.

- let block_dimensions = format.describe().block_dimensions;
+ let block_dimensions = format.block_dimensions();
- let is_compressed = format.describe().is_compressed();
+ let is_compressed = format.is_compressed();
- let is_srgb = format.describe().srgb;
+ let is_srgb = format.is_srgb();
- let required_features = format.describe().required_features;
+ let required_features = format.required_features();

Additionally guaranteed_format_features now takes a set of features to assume are enabled.

- let guaranteed_format_features = format.describe().guaranteed_format_features;
+ let guaranteed_format_features = format.guaranteed_format_features(device.features());

Additionally sample_type and block_size now take an optional TextureAspect and return Options.

- let sample_type = format.describe().sample_type;
+ let sample_type = format.sample_type(None).expect("combined depth-stencil format requires specifying a TextureAspect");
- let block_size = format.describe().block_size;
+ let block_size = format.block_size(None).expect("combined depth-stencil format requires specifying a TextureAspect");

By @teoxoy in #3436

BufferUsages::QUERY_RESOLVE

Buffers used as the destination argument of CommandEncoder::resolve_query_set now have to contain the QUERY_RESOLVE usage instead of the COPY_DST usage.

  let destination = device.create_buffer(&wgpu::BufferDescriptor {
      // ...
-     usage: wgpu::BufferUsages::COPY_DST | wgpu::BufferUsages::MAP_READ,
+     usage: wgpu::BufferUsages::QUERY_RESOLVE | wgpu::BufferUsages::MAP_READ,
      mapped_at_creation: false,
  });
  command_encoder.resolve_query_set(&query_set, query_range, &destination, destination_offset);

By @JolifantoBambla in #3489

Renamed features

The following Features have been renamed.

• SHADER_FLOAT16 -> SHADER_F16
• SHADER_FLOAT64 -> SHADER_F64
• SHADER_INT16 -> SHADER_I16
• TEXTURE_COMPRESSION_ASTC_LDR -> TEXTURE_COMPRESSION_ASTC
• WRITE_TIMESTAMP_INSIDE_PASSES -> TIMESTAMP_QUERY_INSIDE_PASSES

By @teoxoy in #3534

Anisotropic Filtering

Anisotropic filtering has been brought in line with the spec. The anisotropic clamp is now a u16 (was a Option<u8>) which must be at least 1.

If the anisotropy clamp is not 1, all the filters in a sampler must be Linear.

SamplerDescriptor {
-    anisotropic_clamp: None,
+    anisotropic_clamp: 1,
}

By @cwfitzgerald in #3610.

TextureFormat Names

Some texture format names have changed to get back in line with the spec.

- TextureFormat::Bc6hRgbSfloat
+ TextureFormat::Bc6hRgbFloat

By @cwfitzgerald in #3671.

Misc Breaking Changes

• Change type of mip_level_count and array_layer_count (members of TextureViewDescriptor and ImageSubresourceRange) from Option<NonZeroU32> to Option<u32>. By @teoxoy in #3445
• Change type of bytes_per_row and rows_per_image (members of ImageDataLayout) from Option<NonZeroU32> to Option<u32>. By @teoxoy in #3529
• On Web, Instance::create_surface_from_canvas() and create_surface_from_offscreen_canvas() now take the canvas by value. By @daxpedda in #3690

Added/New Features

General

• Added feature flags for ray-tracing (currently only hal): RAY_QUERY and RAY_TRACING @daniel-keitel (started by @expenses) in #3507

Vulkan

• Implemented basic ray-tracing api for acceleration structures, and ray-queries @daniel-keitel (started by @expenses) in #3507

Hal

• Added basic ray-tracing api for acceleration structures, and ray-queries @daniel-keitel (started by @expenses) in #3507

Changes

General

• Added TextureFormatFeatureFlags::MULTISAMPLE_X16. By @Dinnerbone in #3454
• Added BufferUsages::QUERY_RESOLVE. By @JolifantoBambla in #3489
• Support stencil-only views and copying to/from combined depth-stencil textures. By @teoxoy in #3436
• Added Features::SHADER_EARLY_DEPTH_TEST. By @teoxoy in #3494
• All fxhash dependencies have been replaced with rustc-hash. By @james7132 in #3502
• Allow copying of textures with copy-compatible formats. By @teoxoy in #3528
• Improve attachment related errors. By @cwfitzgerald in #3549
• Make error descriptions all upper case. By @cwfitzgerald in #3549
• Don't include ANSI terminal color escape sequences in shader module validation error messages. By @jimblandy in #3591
• Report error messages from DXC compile. By @Davidster in #3632
• Error in native when using a filterable TextureSampleType::Float on a multisample BindingType::Texture. By @mockersf in #3686
• On Web, the size of the canvas is adjusted when using Surface::configure(). If the canvas was given an explicit size (via CSS), this will not affect the visual size of the canvas. By @daxpedda in #3690
• Added Global::create_render_bundle_error. By @jimblandy in #3746

WebGPU

• Implement the new checks for readonly stencils. By @JCapucho in #3443
• Reimplement adapter|device_features. By @jinleili in #3428
• Implement command_encoder_resolve_query_set. By @JolifantoBambla in #3489
• Add support for Features::RG11B10UFLOAT_RENDERABLE. By @mockersf in #3689

Vulkan

• Set max_memory_allocation_size via PhysicalDeviceMaintenance3Properties. By @jinleili in #3567
• Silence false-positive validation error about surface resizing. By @seabassjh in #3627

Bug Fixes

General

• copyTextureToTexture src/dst aspects must both refer to all aspects of src/dst format. By @teoxoy in #3431
• Validate before extracting texture selectors. By @teoxoy in #3487
• Fix fatal errors (those which panic even if an error handler is set) not including all of the details. By @kpreid in #3563
• Validate shader location clashes. By @emilk in #3613
• Fix surfaces not being dropped until exit. By @benjaminschaaf in #3647

WebGPU

• Fix handling of None values for depth_ops and stencil_ops in RenderPassDescriptor::depth_stencil_attachment. By @niklaskorz in #3660
• Avoid using WasmAbi functions for WebGPU backend. By @grovesNL in #3657

DX12

• Use typeless formats for textures that might be viewed as srgb or non-srgb. By @teoxoy in #3555

GLES

• Set FORCE_POINT_SIZE if it is vertex shader with mesh consist of point list. By @REASY in 3440
• Remove unwraps inside surface.configure. By @cwfitzgerald in #3585
• Fix copy_external_image_to_texture, copy_texture_to_texture and copy_buffer_to_texture not taking the specified index into account if the target texture is a cube map, 2D texture array or cube map array. By @daxpedda #3641
• Fix disabling of vertex attributes with non-consecutive locations. By @Azorlogh in #3706

Metal

• Fix metal erroring on an array_stride of 0. By @teoxoy in #3538
• create_texture returns an error if new_texture returns NULL. By @jinleili in #3554
• Fix shader bounds checking being ignored. By @FL33TW00D in #3603

Vulkan

• Treat VK_SUBOPTIMAL_KHR as VK_SUCCESS on Android due to rotation issues. By @James2022-rgb in #3525

Examples

• Use BufferUsages::QUERY_RESOLVE instead of BufferUsages::COPY_DST for buffers used in CommandEncoder::resolve_query_set calls in mipmap example. By @JolifantoBambla in #3489

v0.15.3 (2023-03-22)

Bug Fixes

Metal

• Fix incorrect mipmap being sampled when using MinLod <= 0.0 and MaxLod >= 32.0 or when the fragment shader samples different Lods in the same quad. By @cwfitzgerald in #3610.

GLES

• Fix Vertex buffer is not big enough for the draw call. for ANGLE/Web when rendering with instance attributes on a single instance. By @wumpf in #3596
• Reset all queue state between command buffers in a submit. By @jleibs #3589
• Reset the state of SAMPLE_ALPHA_TO_COVERAGE on queue reset. By @jleibs #3589

wgpu-0.15.2 (2023-03-08)

Bug Fixes

Metal

• Fix definition of NSOperatingSystemVersion to avoid potential crashes. By @grovesNL in #3557

GLES

• Enable WEBGL_debug_renderer_info before querying unmasked vendor/renderer to avoid crashing on emscripten in #3519

wgpu-0.15.1 (2023-02-09)

Changes

General

• Fix for some minor issues in comments on some features. By @Wumpf in #3455

Vulkan

• Improve format MSAA capabilities detection. By @jinleili in #3429

DX12

• Update gpu allocator to 0.22. By @Elabajaba in #3447

WebGPU

• Implement CommandEncoder::clear_buffer. By @raphlinus in #3426

Bug Fixes

General

• Re-sort supported surface formats based on srgb-ness. By @cwfitzgerald in #3444

Vulkan

• Fix surface view formats validation error. By @jinleili in #3432

DX12

• Fix DXC validation issues when using a custom dxil_path. By @Elabajaba in #3434

GLES

• Unbind vertex buffers at end of renderpass. By @cwfitzgerald in #3459

WebGPU

• Reimplement {adapter|device}_features. By @jinleili in #3428

Documentation

General

• Build for Wasm on docs.rs. By @daxpedda in #3462

wgpu-0.15.0 (2023-01-25)

Major Changes

WGSL Top-Level let is now const

All top level constants are now declared with const, catching up with the wgsl spec.

let is no longer allowed at the global scope, only within functions.

-let SOME_CONSTANT = 12.0;
+const SOME_CONSTANT = 12.0;

See https://github.com/gfx-rs/naga/blob/master/CHANGELOG.md#v011-2023-01-25 for smaller shader improvements.

Surface Capabilities API

The various surface capability functions were combined into a single call that gives you all the capabilities.

- let formats = surface.get_supported_formats(&adapter);
- let present_modes = surface.get_supported_present_modes(&adapter);
- let alpha_modes = surface.get_supported_alpha_modes(&adapter);
+ let caps = surface.get_capabilities(&adapter);
+ let formats = caps.formats;
+ let present_modes = caps.present_modes;
+ let alpha_modes = caps.alpha_modes;

Additionally Surface::get_default_config now returns an Option and returns None if the surface isn't supported by the adapter.

- let config = surface.get_default_config(&adapter);
+ let config = surface.get_default_config(&adapter).expect("Surface unsupported by adapter");

Fallible surface creation

Instance::create_surface() now returns Result<Surface, CreateSurfaceError> instead of Surface. This allows an error to be returned if the given window is a HTML canvas and obtaining a WebGPU or WebGL 2 context fails. (No other platforms currently report any errors through this path.) By @kpreid in #3052

Queue::copy_external_image_to_texture on WebAssembly

A new api, Queue::copy_external_image_to_texture, allows you to create wgpu textures from various web image primitives. Specifically from HtmlVideoElement, HtmlCanvasElement, OffscreenCanvas, and ImageBitmap. This provides multiple low-copy ways of interacting with the browser. WebGL is also supported, though WebGL has some additional restrictions, represented by the UNRESTRICTED_EXTERNAL_IMAGE_COPIES downlevel flag. By @cwfitzgerald in #3288

Instance creation now takes InstanceDescriptor instead of Backends

Instance::new() and hub::Global::new() now take an InstanceDescriptor struct which contains both the existing Backends selection as well as a new Dx12Compiler field for selecting which Dx12 shader compiler to use.

- let instance = Instance::new(wgpu::Backends::all());
+ let instance = Instance::new(wgpu::InstanceDescriptor {
+     backends: wgpu::Backends::all(),
+     dx12_shader_compiler: wgpu::Dx12Compiler::Fxc,
+ });

Instance now also also implements Default, which uses wgpu::Backends::all() and wgpu::Dx12Compiler::Fxc for InstanceDescriptor

- let instance = Instance::new(wgpu::InstanceDescriptor {
-     backends: wgpu::Backends::all(),
-     dx12_shader_compiler: wgpu::Dx12Compiler::Fxc,
- });
+ let instance = Instance::default();

By @Elabajaba in #3356

Texture Format Reinterpretation

The new view_formats field in the TextureDescriptor is used to specify a list of formats the texture can be re-interpreted to in a texture view. Currently only changing srgb-ness is allowed (ex. Rgba8Unorm <=> Rgba8UnormSrgb).

let texture = device.create_texture(&wgpu::TextureDescriptor {
  // ...
  format: TextureFormat::Rgba8UnormSrgb,
+ view_formats: &[TextureFormat::Rgba8Unorm],
});

let config = wgpu::SurfaceConfiguration {
  // ...
  format: TextureFormat::Rgba8Unorm,
+ view_formats: vec![wgpu::TextureFormat::Rgba8UnormSrgb],
};
surface.configure(&device, &config);

MSAA x2 and x8 Support

Via the TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES feature, MSAA x2 and x8 are now supported on textures. To query for x2 or x8 support, enable the feature and look at the texture format flags for the texture format of your choice.

By @39ali in 3140

DXC Shader Compiler Support for DX12

You can now choose to use the DXC compiler for DX12 instead of FXC. The DXC compiler is faster, less buggy, and allows for new features compared to the old, unmaintained FXC compiler.

You can choose which compiler to use at Instance creation using the dx12_shader_compiler field in the InstanceDescriptor struct. Note that DXC requires both dxcompiler.dll and dxil.dll, which can be downloaded from https://github.com/microsoft/DirectXShaderCompiler/releases. Both .dlls need to be shipped with your application when targeting DX12 and using the DXC compiler. If the .dlls can't be loaded, then it will fall back to the FXC compiler. By @39ali and @Elabajaba in #3356

Suballocate DX12 buffers and textures

The DX12 backend can now suballocate buffers and textures from larger chunks of memory, which can give a significant increase in performance (in testing a 100x improvement has been seen in a simple scene with 200 write_buffer calls per frame, and a 1.4x improvement in Bistro using Bevy).

Previously wgpu-hal's DX12 backend created a new heap on the GPU every time you called write_buffer (by calling CreateCommittedResource), whereas now it uses gpu_allocator to manage GPU memory (and calls CreatePlacedResource with a suballocated heap). By @Elabajaba in #3163

Backend selection by features in wgpu-core

Whereas wgpu-core used to automatically select backends to enable based on the target OS and architecture, it now has separate features to enable each backend:

• "metal", for the Metal API on macOS and iOS
• "vulkan", for the Vulkan API (Linux, some Android, and occasionally Windows)
• "dx12", for Microsoft's Direct3D 12 API
• "gles", OpenGL ES, available on many systems
• "dx11", for Microsoft's Direct3D 11 API

None are enabled by default, but the wgpu crate automatically selects these features based on the target operating system and architecture, using the same rules that wgpu-core used to, so users of wgpu should be unaffected by this change. However, other crates using wgpu-core directly will need to copy wgpu's logic or write their own. See the [target] section of wgpu/Cargo.toml for details.

Similarly, wgpu-core now has emscripten and renderdoc features that wgpu enables on appropriate platforms.

In previous releases, the wgpu-core crate decided which backends to support. However, this left wgpu-core's users with no way to override those choices. (Firefox doesn't want the GLES back end, for example.) There doesn't seem to be any way to have a crate select backends based on target OS and architecture that users of that crate can still override. Default features can't be selected based on the target, for example. That implies that we should do the selection as late in the dependency DAG as feasible. Having wgpu (and wgpu-core's other dependents) choose backends seems like the best option.

By @jimblandy in #3254.

Changes

General

• Convert all Default Implementations on Enums to derive(Default)
• Implement Default for CompositeAlphaMode
• New downlevel feature UNRESTRICTED_INDEX_BUFFER to indicate support for using INDEX together with other non-copy/map usages (unsupported on WebGL). By @Wumpf in #3157
• Add missing DEPTH_BIAS_CLAMP and FULL_DRAW_INDEX_UINT32 downlevel flags. By @teoxoy in #3316
• Combine Surface::get_supported_formats, Surface::get_supported_present_modes, and Surface::get_supported_alpha_modes into Surface::get_capabilities and SurfaceCapabilities. By @cwfitzgerald in #3157
• Make Surface::get_default_config return an Option to prevent panics. By @cwfitzgerald in #3157
• Lower the max_buffer_size limit value for compatibility with Apple2 and WebGPU compliance. By @jinleili in #3255
• Limits min_uniform_buffer_offset_alignment and min_storage_buffer_offset_alignment is now always at least 32. By @wumpf #3262
• Dereferencing a buffer view is now marked inline. By @Wumpf in #3307
• The strict_assert family of macros was moved to wgpu-types. By @i509VCB in #3051
• Make ObjectId structure and invariants idiomatic. By @teoxoy in #3347
• Add validation in accordance with WebGPU GPUSamplerDescriptor valid usage for lodMinClamp and lodMaxClamp. By @James2022-rgb in #3353
• Remove panics in Deref implementations for QueueWriteBufferView and BufferViewMut. Instead, warnings are logged, since reading from these types is not recommended. By @botahamec in [#3336]
• Implement view_formats in the TextureDescriptor to match the WebGPU spec. By @jinleili in #3237
• Show more information in error message for non-aligned buffer bindings in WebGL #3414
• Update TextureView validation according to the WebGPU spec. By @teoxoy in #3410
• Implement view_formats in the SurfaceConfiguration to match the WebGPU spec. By @jinleili in #3409

Vulkan

• Set WEBGPU_TEXTURE_FORMAT_SUPPORT downlevel flag depending on the proper format support by @teoxoy in #3367.
• Set COPY_SRC/COPY_DST only based on Vulkan's TRANSFER_SRC/TRANSFER_DST by @teoxoy in #3366.

GLES

• Browsers that support OVR_multiview2 now report the MULTIVIEW feature by @expenses in #3121.
• Limits::max_push_constant_size on GLES is now 256 by @Dinnerbone in #3374.
• Creating multiple pipelines with the same shaders will now be faster, by @Dinnerbone in #3380.

WebGPU

• Implement queue_validate_write_buffer by @jinleili in #3098
• Sync depth/stencil copy restrictions with the spec by @teoxoy in #3314

Added/New Features

General

• Implement Hash for DepthStencilState and DepthBiasState
• Add the "wgsl" feature, to enable WGSL shaders in wgpu-core and wgpu. Enabled by default in wgpu. By @daxpedda in #2890.
• Implement Clone for ShaderSource and ShaderModuleDescriptor in wgpu. By @daxpedda in #3086.
• Add get_default_config for Surface to simplify user creation of SurfaceConfiguration. By @jinleili in #3034
• Improve compute shader validation error message. By @haraldreingruber in #3139
• Native adapters can now use MSAA x2 and x8 if it's supported , previously only x1 and x4 were supported . By @39ali in 3140
• Implemented correleation between user timestamps and platform specific presentation timestamps via [Adapter::get_presentation_timestamp]. By @cwfitzgerald in #3240
• Added support for Features::SHADER_PRIMITIVE_INDEX on all backends. By @cwfitzgerald in #3272
• Implemented TextureFormat::Stencil8, allowing for stencil testing without depth components. By @Dinnerbone in #3343
• Implemented add_srgb_suffix() for TextureFormat for converting linear formats to sRGB. By @Elabajaba in #3419
• Zero-initialize workgroup memory. By @teoxoy in #3174

GLES

• Surfaces support now TextureFormat::Rgba8Unorm and (non-web only) TextureFormat::Bgra8Unorm. By @Wumpf in #3070
• Support alpha to coverage. By @Wumpf in #3156
• Support filtering f32 textures. By @expenses in #3261

Vulkan

• Add SHADER_INT16 feature to enable the shaderInt16 VkPhysicalDeviceFeature. By @Elabajaba in #3401

WebGPU

• Add MULTISAMPLE_X2, MULTISAMPLE_X4 and MULTISAMPLE_X8 to TextureFormatFeatureFlags. By @39ali in 3140
• Sync TextureFormat.describe with the spec. By @teoxoy in 3312

Metal

• Add a way to create Device and Queue from raw Metal resources in wgpu-hal. By @AdrianEddy in #3338

Bug Fixes

General

• Update ndk-sys to v0.4.1+23.1.7779620, to fix checksum failures. By @jimblandy in #3232.
• Bother to free the hal::Api::CommandBuffer when a wgpu_core::command::CommandEncoder is dropped. By @jimblandy in #3069.
• Fixed the mipmap example by adding the missing WRITE_TIMESTAMP_INSIDE_PASSES feature. By @Olaroll in #3081.
• Avoid panicking in some interactions with invalid resources by @nical in (#3094)[https://github.com/gfx-rs/wgpu/pull/3094]
• Fixed an integer overflow in copy_texture_to_texture by @nical #3090
• Remove wgpu_types::Features::DEPTH24PLUS_STENCIL8, making wgpu::TextureFormat::Depth24PlusStencil8 available on all backends. By @Healthire in (#3151)[https://github.com/gfx-rs/wgpu/pull/3151]
• Fix an integer overflow in queue_write_texture by @nical in (#3146)[https://github.com/gfx-rs/wgpu/pull/3146]
• Make RenderPassCompatibilityError and CreateShaderModuleError not so huge. By @jimblandy in (#3226)[https://github.com/gfx-rs/wgpu/pull/3226]
• Check for invalid bitflag bits in wgpu-core and allow them to be captured/replayed by @nical in (#3229)[https://github.com/gfx-rs/wgpu/pull/3229]
• Evaluate gfx_select!'s #[cfg] conditions at the right time. By @jimblandy in #3253
• Improve error messages when binding bind group with dynamic offsets. By @cwfitzgerald in #3294
• Allow non-filtering sampling of integer textures. By @JMS55 in #3362.
• Validate texture ids in Global::queue_texture_write. By @jimblandy in #3378.
• Don't panic on mapped buffer in queue_submit. By @crowlKats in #3364.
• Fix being able to sample a depth texture with a filtering sampler. By @teoxoy in #3394.
• Make make_spirv_raw and make_spirv handle big-endian binaries. By @1e1001 in #3411.

Vulkan

• Update ash to 0.37.1+1.3.235 to fix CI breaking by changing a call to the deprecated debug_utils_set_object_name() function to set_debug_utils_object_name() by @elabajaba in #3273
• Document and improve extension detection. By @teoxoy in #3327
• Don't use a pointer to a local copy of a PhysicalDeviceDriverProperties struct after it has gone out of scope. In fact, don't make a local copy at all. Introduce a helper function for building CStrs from C character arrays, and remove some unsafe blocks. By @jimblandy in #3076.

DX12

• Fix depth16Unorm formats by @teoxoy in #3313
• Don't re-use GraphicsCommandList when close or reset fails. By @xiaopengli89 in #3204

Metal

• Fix texture view creation with full-resource views when using an explicit mip_level_count or array_layer_count. By @cwfitzgerald in #3323

GLES

• Fixed WebGL not displaying srgb targets correctly if a non-screen filling viewport was previously set. By @Wumpf in #3093
• Fix disallowing multisampling for float textures if otherwise supported. By @Wumpf in #3183
• Fix a panic when creating a pipeline with opaque types other than samplers (images and atomic counters). By @James2022-rgb in #3361
• Fix uniform buffers being empty on some vendors. By @Dinnerbone in #3391
• Fix a panic allocating a new buffer on webgl. By @Dinnerbone in #3396

WebGPU

• Use log instead of println in hello example by @JolifantoBambla in #2858

deno-webgpu

• Let setVertexBuffer and setIndexBuffer calls on GPURenderBundleEncoder throw an error if the size argument is zero, rather than treating that as "until the end of the buffer". By @jimblandy in #3171

Emscripten

• Let the wgpu examples framework.rs compile again under Emscripten. By @jimblandy in #3246

Examples

• Log adapter info in hello example on wasm target by @JolifantoBambla in #2858
• Added new example stencil-triangles to show basic use of stencil testing. By @Dinnerbone in #3343

Testing/Internal

• Update the minimum supported rust version to 1.64
• Move ResourceMetadata into its own module. By @jimblandy in #3213
• Add WebAssembly testing infrastructure. By @haraldreingruber in #3238
• Error message when you forget to use cargo-nextest. By @cwfitzgerald in #3293
• Fix all suggestions from cargo clippy

wgpu-0.14.2 (2022-11-28)

Bug Fixes

• Fix incorrect offset in get_mapped_range by @nical in #3233

wgpu-0.14.1 (2022-11-02)

Bug Fixes

• Make wgpu::TextureFormat::Depth24PlusStencil8 available on all backends by making the feature unconditionally available and the feature unneeded to use the format. By @Healthire and @cwfitzgerald in #3165

wgpu-0.14.0 (2022-10-05)

Major Changes

@invariant Warning

When using CompareFunction::Equal or CompareFunction::NotEqual on a pipeline, there is now a warning logged if the vertex shader does not have a @invariant tag on it. On some machines, rendering the same triangles multiple times without an @invariant tag will result in slightly different depths for every pixel. Because the *Equal functions rely on depth being the same every time it is rendered, we now warn if it is missing.

-@vertex
-fn vert_main(v_in: VertexInput) -> @builtin(position) vec4<f32> {...}
+@vertex
+fn vert_main(v_in: VertexInput) -> @builtin(position) @invariant vec4<f32> {...}

Surface Alpha and PresentModes

Surface supports alpha_mode now. When alpha_mode is equal to PreMultiplied or PostMultiplied, the alpha channel of framebuffer is respected in the compositing process, but which mode is available depends on the different API and Device. If don't care about alpha_mode, you can set it to Auto.

SurfaceConfiguration {
// ...
+ alpha_mode: surface.get_supported_alpha_modes(&adapter)[0],
}

The function to enumerate supported presentation modes changed:

- pub fn wgpu::Surface::get_supported_modes(&self, adapter: &wgpu::Adapter) -> Vec<PresentMode>
+ pub fn wgpu::Surface::get_supported_present_modes(&self, adapter: &wgpu::Adapter) -> Vec<PresentMode>

Updated raw-window-handle to 0.5

This will allow use of the latest version of winit. As such the bound on create_surface is now RWH 0.5 and requires both raw_window_handle::HasRawWindowHandle and raw_window_handle::HasRawDisplayHandle.

Added/New Features

• Add Buffer::size() and Buffer::usage(); by @kpreid in #2923
• Split Blendability and Filterability into Two Different TextureFormatFeatureFlags; by @stakka in #3012
• Expose alpha_mode on SurfaceConfiguration, by @jinleili in #2836
• Introduce fields for driver name and info in AdapterInfo, by @i509VCB in #3037
• Add way to create gles hal textures from raw gl names to allow externally managed textures. By @i509VCB #3046
• Implemented copy_external_image_to_texture on WebGPU, by @ybiletskyi in #2781

Bug Fixes

General

• Free StagingBuffers even when an error occurs in the operation that consumes them. By @jimblandy in #2961
• Avoid overflow when checking that texture copies fall within bounds. By @jimblandy in #2963
• Improve the validation and error reporting of buffer mappings by @nical in #2848
• Fix compilation errors when using wgpu-core in isolation while targeting wasm32-unknown-unknown by @Seamooo in #2922
• Fixed opening of RenderDoc library by @abuffseagull in #2930
• Added missing validation for BufferUsages mismatches when Features::MAPPABLE_PRIMARY_BUFFERS is not enabled. By @imberflur in #3023
• Fixed CommandEncoder not being Send and Sync on web by @i509VCB in #3025
• Document meaning of vendor in AdapterInfo if the vendor has no PCI id.
• Fix missing resource labels from some Errors by @scoopr in #3066

Metal

• Add the missing msg_send![view, retain] call within from_view by @jinleili in #2976
• Fix max_buffer max_texture and max_vertex_buffers limits by @jinleili in #2978
• Remove PrivateCapabilities's format_rgb10a2_unorm_surface field by @jinleili in #2981
• Fix validation error when copying into a subset of a single-layer texture by @nical in #3063
• Fix _buffer_sizes encoding by @dtiselice in #3047

Vulkan

• Fix astc_hdr formats support by @jinleili in [#2971]](https://github.com/gfx-rs/wgpu/pull/2971)
• Update to naga b209d911 (2022-9-1) to avoid generating SPIR-V that violates Vulkan valid usage rules VUID-StandaloneSpirv-Flat-06202 and VUID-StandaloneSpirv-Flat-04744. By @jimblandy in #3008
• Fix bug where the Vulkan backend would panic when using a supported window and display handle but the dependent extensions are not available by @i509VCB in #3054.

GLES

• Report vendor id for Mesa and Apple GPUs. By @i509VCB #3036
• Report Apple M2 gpu as integrated. By @i509VCB #3036

WebGPU

• When called in a web worker, Context::init() now uses web_sys::WorkerGlobalContext to create a wgpu::Instance instead of trying to access the unavailable web_sys::Window by @JolifantoBambla in #2858

Changes

General

• Changed wgpu-hal and wgpu-core implementation to pass RawDisplayHandle and RawWindowHandle as separate parameters instead of passing an impl trait over both HasRawDisplayHandle and HasRawWindowHandle. By @i509VCB in #3022
• Changed Instance::as_hal<A> to just return an Option<&A::Instance> rather than taking a callback. By @jimb in #2991
• Added downlevel restriction error message for InvalidFormatUsages error by @Seamooo in #2886
• Add warning when using CompareFunction::*Equal with vertex shader that is missing @invariant tag by @cwfitzgerald in #2887
• Update Winit to version 0.27 and raw-window-handle to 0.5 by @wyatt-herkamp in #2918
• Address Clippy 0.1.63 complaints. By @jimblandy in #2977
• Don't use PhantomData for IdentityManager's Input type. By @jimblandy in #2972
• Changed naga variant in ShaderSource to Cow<'static, Module>, to allow loading global variables by @daxpedda in #2903
• Updated the maximum binding index to match the WebGPU specification by @nical in #2957
• Add unsafe_op_in_unsafe_fn to Clippy lints in the entire workspace. By @ErichDonGubler in #3044.

Metal

• Extract the generic code into get_metal_layer by @jinleili in #2826

Vulkan

• Remove use of Vulkan12Features/Properties types. By @i509VCB in #2936
• Provide a means for wgpu users to access vk::Queue and the queue index. By @anlumo in #2950
• Use the use effective api version for determining device features instead of wrongly assuming VkPhysicalDeviceProperties.apiVersion is the actual version of the device. By @i509VCB in #3011
• DropGuard has been moved to the root of the wgpu-hal crate. By @i509VCB #3046

GLES

• Add Rgba16Float format support for color attachments. By @jinleili in #3045
• TEXTURE_COMPRESSION_ASTC_HDR feature detection by @jinleili in #3042

Performance

• Made StagingBelt::write_buffer() check more thoroughly for reusable memory; by @kpreid in #2906

Documentation

• Add WGSL examples to complement existing examples written in GLSL by @norepimorphism in #2888
• Document wgpu_core resource allocation. @jimblandy in #2973
• Expanded StagingBelt documentation by @kpreid in #2905
• Fixed documentation for Instance::create_surface_from_canvas and Instance::create_surface_from_offscreen_canvas regarding their safety contract. These functions are not unsafe. By @jimblandy #2990
• Document that write_buffer_with() is sound but unwise to read from by @kpreid in #3006
• Explain why Adapter::as_hal and Device::as_hal have to take callback functions. By @jimblandy in #2992

Dependency Updates

WebGPU

• Update wasm32 dependencies, set alpha_mode on web target by @jinleili in #3040

Build Configuration

• Add the "strict_asserts" feature, to enable additional internal run-time validation in wgpu-core. By @jimblandy in #2872.

Full API Diff

Manual concatenation of cargo public-api --diff-git-checkouts v0.13.2 v0.14.0 -p wgpu and cargo public-api --diff-git-checkouts v0.13.2 v0.14.0 -p wgpu-types

Removed items from the public API
=================================
-pub fn wgpu::Surface::get_supported_modes(&self, adapter: &wgpu::Adapter) -> Vec<PresentMode>
-pub const wgpu::Features::DEPTH24UNORM_STENCIL8: Self
-pub enum variant wgpu::TextureFormat::Depth24UnormStencil8

Changed items in the public API
===============================
-pub unsafe fn wgpu::Instance::as_hal<A: wgc::hub::HalApi, F: FnOnce(Option<&<A as >::Instance>) -> R, R>(&self, hal_instance_callback: F) -> R
+pub unsafe fn wgpu::Instance::as_hal<A: wgc::hub::HalApi>(&self) -> Option<&<A as >::Instance>
-pub unsafe fn wgpu::Instance::create_surface<W: raw_window_handle::HasRawWindowHandle>(&self, window: &W) -> wgpu::Surface
+pub unsafe fn wgpu::Instance::create_surface<W: raw_window_handle::HasRawWindowHandle + raw_window_handle::HasRawDisplayHandle>(&self, window: &W) -> wgpu::Surface

Added items to the public API
=============================
+pub fn wgpu::Buffer::size(&self) -> wgt::BufferAddress
+pub fn wgpu::Buffer::usage(&self) -> BufferUsages
+pub fn wgpu::Surface::get_supported_alpha_modes(&self, adapter: &wgpu::Adapter) -> Vec<CompositeAlphaMode>
+pub fn wgpu::Surface::get_supported_present_modes(&self, adapter: &wgpu::Adapter) -> Vec<PresentMode>
+#[repr(C)] pub enum wgpu::CompositeAlphaMode
+impl RefUnwindSafe for wgpu::CompositeAlphaMode
+impl Send for wgpu::CompositeAlphaMode
+impl Sync for wgpu::CompositeAlphaMode
+impl Unpin for wgpu::CompositeAlphaMode
+impl UnwindSafe for wgpu::CompositeAlphaMode
+pub const wgpu::Features::DEPTH24PLUS_STENCIL8: Self
+pub const wgpu::TextureFormatFeatureFlags::BLENDABLE: Self
+pub enum variant wgpu::CompositeAlphaMode::Auto = 0
+pub enum variant wgpu::CompositeAlphaMode::Inherit = 4
+pub enum variant wgpu::CompositeAlphaMode::Opaque = 1
+pub enum variant wgpu::CompositeAlphaMode::PostMultiplied = 3
+pub enum variant wgpu::CompositeAlphaMode::PreMultiplied = 2
+pub enum variant wgpu::TextureFormat::Depth16Unorm
+pub fn wgpu::CompositeAlphaMode::clone(&self) -> wgpu::CompositeAlphaMode
+pub fn wgpu::CompositeAlphaMode::eq(&self, other: &wgpu::CompositeAlphaMode) -> bool
+pub fn wgpu::CompositeAlphaMode::fmt(&self, f: &mut $crate::fmt::Formatter<'_>) -> $crate::fmt::Result
+pub fn wgpu::CompositeAlphaMode::hash<__H: $crate::hash::Hasher>(&self, state: &mut __H) -> ()
+pub struct field wgpu::AdapterInfo::driver: String
+pub struct field wgpu::AdapterInfo::driver_info: String
+pub struct field wgpu::SurfaceConfiguration::alpha_mode: wgpu_types::CompositeAlphaMode

wgpu-0.13.2 (2022-07-13)

Bug Fixes

General

• Prefer DeviceType::DiscreteGpu over DeviceType::Other for PowerPreference::LowPower so Vulkan is preferred over OpenGL again by @Craig-Macomber in #2853
• Allow running get_texture_format_features on unsupported texture formats (returning no flags) by @cwfitzgerald in #2856
• Allow multi-sampled textures that are supported by the device but not WebGPU if TEXTURE_ADAPTER_SPECIFIC_FORMAT_FEATURES is enabled by @cwfitzgerald in #2856
• get_texture_format_features only lists the COPY_* usages if the adapter actually supports that usage by @cwfitzgerald in #2856
• Fix bind group / pipeline deduplication not taking into account RenderBundle execution resetting these values by @shoebe #2867
• Fix panics that occur when using as_hal functions when the hal generic type does not match the hub being looked up in by @i509VCB #2871
• Add some validation in map_async by @nical in #2876
• Fix bugs when mapping/unmapping zero-sized buffers and ranges by @nical in #2877
• Fix out-of-bound write in map_buffer with non-zero offset by @nical in #2916
• Validate the number of color attachments in create_render_pipeline by @nical in #2913
• Validate against the maximum binding index in create_bind_group_layout by @nical in #2892
• Validate that map_async's range is not negative by @nical in #2938
• Fix calculation/validation of layer/mip ranges in create_texture_view by @nical in #2955
• Validate the sample count and mip level in copy_texture_to_buffer by @nical in #2958
• Expose the cause of the error in the map_async callback in #2939

DX12

• DownlevelCapabilities::default() now returns the ANISOTROPIC_FILTERING flag set to true so DX12 lists ANISOTROPIC_FILTERING as true again by @cwfitzgerald in #2851
• Properly query format features for UAV/SRV usages of depth formats by @cwfitzgerald in #2856

Vulkan

• Vulkan 1.0 drivers that support VK_KHR_multiview now properly report the MULTIVIEW feature as supported by @i509VCB in #2934.
• Stop using VkPhysicalDevice11Features in Vulkan 1.1 which is confusingly provided in Vulkan 1.2 by @i509VCB in #2934.

GLES

• Fix depth stencil texture format capability by @jinleili in #2854
• get_texture_format_features now only returns usages for formats it actually supports by @cwfitzgerald in #2856

Hal

• Allow access to queue family index in Vulkan hal by @i509VCB in #2859
• Allow access to the EGLDisplay and EGLContext pointer in Gles hal Adapter and Device by @i509VCB in #2860

Documentation

• Update present_mode docs as most of them don't automatically fall back to Fifo anymore. by @Elabajaba in #2855

Hal

• Document safety requirements for Adapter::from_external in gles hal by @i509VCB in #2863
• Make AdapterContext a publicly accessible type in the gles hal by @i509VCB in #2870

wgpu-0.13.1 (2022-07-02)

Bug Fixes

General

• Fix out of bounds access when surface texture is written to by multiple command buffers by @cwfitzgerald in #2843

GLES

• AutoNoVSync now correctly falls back to Fifo by @simbleau in #2842
• Fix GL_EXT_color_buffer_float detection on native by @cwfitzgerald in #2843

wgpu-0.13 (2022-06-30)

Major Changes

WGSL Syntax

WGSL syntax has changed in a couple ways. The new syntax is easier to read and work with.

Attribute declarations are written differently:

- [[group(1), binding(0)]]
+ @group(1) @binding(0)

Stage declarations are now separate attributes rather than part of the stage attribute:

- [[stage(vertex)]]
+ @vertex

Structs now use , as field separator and no longer need semicolons after the declaration:

- struct MyStruct {
-     my_member: u32;
- };
+ struct MyStruct {
+     my_member: u32,
+ }

Surface API

The method of getting the preferred swapchain format has changed to allow viewing all formats supported by the surface.

- let format = surface.get_preferred_format(&adapter).unwrap();
+ let format = surface.get_supported_formats(&adapter)[0];

Presentation modes now need to match exactly what the surface supports. FIFO is always supported, but all other modes vary from API to API and Device to Device. To get a list of all supported modes, call the following. The order does not indicate preference.

let modes = surface.get_supported_present_modes(&adapter);

Timestamp Queries

Timestamp queries are now restricted behind multiple features to allow implementation on TBDR (Tile-Based Deferred Rendering) based GPUs, such as mobile devices and Apple's M chips.

Features::TIMESTAMP_QUERIES now allows for calling write_timestamp only on CommandEncoders.

Features::WRITE_TIMESTAMP_INSIDE_PASSES is needed to call write_timestamp on RenderPassEncoders or ComputePassEncoders.

map_async

The function for mapping buffers no longer returns a future, and instead calls a callback when the buffer is mapped.

This aligns with the use of the API more clearly - you aren't supposed to block and wait on the future to resolve, you are supposed to keep rendering and wait until the buffer maps on its own. Mapping and the flow of mapping is an under-documented area that we hope to improve in the future.

- let future = buffer.slice(..).map_async(MapMode::Read);
+ buffer.slice(..).map_async(MapMode::Read, || {
+     // Called when buffer is mapped.
+ })

Submission Indexes

Calling queue.submit now returns an opaque submission index that can be used as an argument to device.poll to say which submission to wait to complete.

Other Breaking Changes

Device::create_shader_module now takes the shader descriptor by value:

- device.create_shader_module(&shader_module_descriptor)
+ device.create_shader_module(shader_module_descriptor)

Color attachments can be sparse, so they are now optional:

FragmentState {
-  targets: &[color_target_state]
+  targets: &[Some(color_target_state)]
  // ..
}

RenderPassDescriptor {
-  color_attachments: &[render_pass_color_attachment]
+  color_attachments: &[Some(render_pass_color_attachment)]
  // ..
}

RenderBundleEncoderDescriptor {
-  color_formats: &[texture_format]
+  color_formats: &[Some(texture_format)]
  // ..
}

Extent3d::max_mips now requires you to pass a TextureDimension to specify whether or not depth_or_array_layers should be ignored:

Extent3d {
  width: 1920,
  height: 1080,
  depth_or_array_layers: 6,
- }.max_mips()
+ }.max_mips(wgpu::TextureDimension::D3)

Limits has a new field, max_buffer_size (not an issue if you don't define limits manually):

Limits {
  // ...
+ max_buffer_size: 256 * 1024 * 1024, // adjust as you see fit
}

Features::CLEAR_COMMANDS is now unnecessary and no longer exists. The feature to clear buffers and textures is now part of upstream WebGPU.

DeviceDescriptor {
  // ...
  features: wgpu::Features::VERTEX_WRITABLE_STORAGE
    | wgpu::Features::MAPPABLE_PRIMARY_BUFFERS
    | wgpu::Features::TEXTURE_BINDING_ARRAY
    | wgpu::Features::BUFFER_BINDING_ARRAY
    | wgpu::Features::STORAGE_RESOURCE_BINDING_ARRAY
-    | wgpu::Features::CLEAR_COMMANDS
  ,
}

ComputePass::dispatch has been renamed to ComputePass::dispatch_workgroups

- cpass.dispatch(self.work_group_count, 1, 1)
+ cpass.dispatch_workgroups(self.work_group_count, 1, 1)

Added/New Features

General

• Add util::indirect::* helper structs by @IcanDivideBy0 in #2365
• Add AddressMode::ClampToZero by @laptou in #2364
• Add MULTISAMPLED_SHADING downlevel flag by @jinleili in #2425
• Allow non struct buffers in wgsl by @IcanDivideBy0 in #2451
• Prefix every wgpu-generated label with (wgpu). by @kpreid in #2590
• Permit non-struct, non-array types as buffers. by @jimblandy in #2584
• Return queue_empty for Device::poll by @xiaopengli89 in #2643
• Add SHADER_FLOAT16 feature by @jinleili in #2646
• Add DEPTH32FLOAT_STENCIL8 feature by @jinleili in #2664
• Add DEPTH24UNORM_STENCIL8 feature by @jinleili in #2689
• Implement submission indexes by @cwfitzgerald in #2700
• [WebGL] Add a downlevel capability for rendering to floating point textures by @expenses in #2729
• allow creating wgpu::Instance from wgpu_core::Instance by @i509VCB in #2763
• Force binding sizes to be multiples of 16 on webgl by @cwfitzgerald in #2808
• Add naga variant to ShaderSource by @rttad in #2801
• Implement Queue::write_buffer_with by @teoxoy in #2777

Vulkan

• Re-allow vk backend on Apple platforms via vulkan-portability feature by @jinleili in #2488
• vulkan: HDR ASTC formats support by @jinleili in #2496

Metal

• Implement push constants for metal backend by @TheOnlyMrCat in #2314
• Metal backend ASTC HDR formats support by @jinleili in #2477
• Add COPY_DST to Metal's surface usage bits by @vl4dimir in #2491
• Add Features::MULTI_DRAW_INDIRECT to Metal by @expenses in #2737

GLES

• Support externally initialized contexts by @kvark in #2350
• Angle support on macOS by @jinleili in #2461
• Use EGL surfaceless platform when windowing system is not found by @sh7dm in #2339
• Do a downlevel check for anisotrophy and enable it in the webgl backend by @expenses in #2616
• OffscreenCanvas Support for WebGL Backend by @haraldreingruber-dedalus in #2603

DX12

• Support to create surface from visual on Windows by @xiaopengli89 in #2434
• Add raw_queue for d3d12 device by @xiaopengli89 in #2600

DX11

• Skeleton of a DX11 backend - not working yet by @cwfitzgerald in #2443

Hal

• Adapter and Instance as_hal functions by @i509VCB in #2663
• expose some underlying types in Vulkan hal by @i509VCB in #2667
• Add raw_device method for dx12, vulkan hal by @xiaopengli89 in #2360
• expose egl display in gles Instance hal by @i509VCB in #2670
• Add raw_adapter method for dx12 hal adapter by @xiaopengli89 in #2714
• Acquire texture: Option<std::time::Duration> timeouts by @rib in #2724
• expose vulkan physical device capabilities, enabled device extensions by @i509VCB in #2688

Emscripten

• feature: emscripten by @caiiiycuk in #2422
• feature = emscripten, compatibility fixes for wgpu-native by @caiiiycuk in #2450

Changes

General

• Make ShaderSource #[non_exhaustive] by @fintelia in #2312
• Make execute_bundles() receive IntoIterator by @maku693 in #2410
• Raise wgpu_hal::MAX_COLOR_TARGETS to 8. by @jimblandy in #2640
• Rename dispatch -> dispatch_workgroups by @jinleili in #2619
• Update texture_create_view logic to match spec by @jinleili in #2621
• Move TEXTURE_COMPRESSION_ETC2 | ASTC_LDR to web section to match spec by @jinleili in #2671
• Check that all vertex outputs are consumed by the fragment shader by @cwfitzgerald in #2704
• Convert map_async from being async to being callback based by @cwfitzgerald in #2698
• Align the validation of Device::create_texture with the WebGPU spec by @nical in #2759
• Add InvalidGroupIndex validation at create_shader_module by @jinleili in #2775
• Rename MAX_COLOR_TARGETS to MAX_COLOR_ATTACHMENTS to match spec by @jinleili in #2780
• Change get_preferred_format to get_supported_formats by @stevenhuyn in #2783
• Restrict WriteTimestamp Inside Passes by @cwfitzgerald in #2802
• Flip span labels to work better with tools by @cwfitzgerald in #2820

Gles

• Make GLES DeviceType unknown by default by @PolyMeilex in #2647

Metal

• metal: check if in the main thread when calling create_surface by @jinleili in #2736

Hal

• limit binding sizes to i32 by @kvark in #2363

Bug Fixes

General

• Fix trac(y/ing) compile issue by @cwfitzgerald in #2333
• Improve detection and validation of cubemap views by @kvark in #2331
• Don't create array layer trackers for 3D textures. by @ElectronicRU in #2348
• Limit 1D texture mips to 1 by @kvark in #2374
• Texture format MSAA capabilities by @kvark in #2377
• Fix write_buffer to surface texture @kvark in #2385
• Improve some error messages by @cwfitzgerald in #2446
• Don't recycle indices that reach EOL by @kvark in #2462
• Validated render usages for 3D textures by @kvark in #2482
• Wrap all validation logs with catch_unwinds by @cwfitzgerald in #2511
• Fix clippy lints by @a1phyr in #2560
• Free the raw device when wgpu::Device is dropped. by @jimblandy in #2567
• wgpu-core: Register new pipelines with device's tracker. by @jimblandy in #2565
• impl Debug for StagingBelt by @kpreid in #2572
• Use fully qualified syntax for some calls. by @jimblandy in #2655
• fix: panic in Storage::get by @SparkyPotato in #2657
• Report invalid pipelines in render bundles as errors, not panics. by @jimblandy in #2666
• Perform "valid to use with" checks when recording render bundles. by @jimblandy in #2690
• Stop using storage usage for sampling by @cwfitzgerald in #2703
• Track depth and stencil writability separately. by @jimblandy in #2693
• Improve InvalidScissorRect error message by @jinleili in #2713
• Improve InvalidViewport error message by @jinleili in #2723
• Don't dirty the vertex buffer for stride/rate changes on bundles. by @jimblandy in #2744
• Clean up render bundle index buffer tracking. by @jimblandy in #2743
• Improve read-write and read-only texture storage error message by @jinleili in #2745
• Change WEBGPU_TEXTURE_FORMAT_SUPPORT to 1 << 14 instead of 1 << 15 by @expenses in #2772
• fix BufferMapCallbackC & SubmittedWorkDoneClosureC by @rajveermalviya in #2787
• Fix formatting of TextureDimensionError::LimitExceeded. by @kpreid in #2799
• Remove redundant #[cfg] conditions from backend/direct.rs. by @jimblandy in #2811
• Replace android-properties with android_system_properties. by @nical in #2815
• Relax render pass color_attachments validation by @jinleili in #2778
• Properly Barrier Compute Indirect Buffers by @cwfitzgerald in #2810
• Use numeric constants to define wgpu_types::Features values. by @jimblandy in #2817

Metal

• Fix surface texture clear view by @kvark in #2341
• Set preserveInvariance for shader options by @scoopr in #2372
• Properly set msl version to 2.3 if supported by @cwfitzgerald in #2418
• Identify Apple M1 GPU as integrated by @superdump in #2429
• Fix M1 in macOS incorrectly reports supported compressed texture formats by @superdump in #2453
• Msl: support unsized array not in structures by @kvark in #2459
• Fix Surface::from_uiview can not guarantee set correct contentScaleFactor by @jinleili in #2470
• Set max_buffer_size by the correct physical device restriction by @jinleili in #2502
• Refactor PrivateCapabilities creation by @jinleili in #2509
• Refactor texture_format_capabilities function by @jinleili in #2522
• Improve push | pop_debug_marker by @jinleili in #2537
• Fix some supported limits by @jinleili in #2608
• Don't skip incomplete binding resources. by @dragostis in #2622
• Fix Rgb9e5Ufloat capabilities and sampler_lod_average support by @jinleili in #2656
• Fix Depth24Plus | Depth24PlusStencil8 capabilities by @jinleili in #2686
• Get_supported_formats: sort like the old get_preferred_format and simplify return type by @victorvde in #2786
• Restrict hal::TextureUses::COLOR_TARGET condition within create_texture by @jinleili in #2818

DX12

• Fix UMA check by @kvark in #2305
• Fix partial texture barrier not affecting stencil aspect by @Wumpf in #2308
• Improve RowPitch computation by @kvark in #2409

Vulkan

• Explicitly set Vulkan debug message types instead of !empty() by @victorvde in #2321
• Use stencil read/write masks by @kvark in #2382
• Vulkan: correctly set INDEPENDENT_BLEND，make runnable on Android 8.x by @jinleili in #2498
• Fix ASTC format mapping by @kvark in #2476
• Support flipped Y on VK 1.1 devices by @cwfitzgerald in #2512
• Fixed builtin(primitive_index) for vulkan backend by @kwillemsen in #2716
• Fix PIPELINE_STATISTICS_QUERY feature support by @jinleili in #2750
• Add a vulkan workaround for large buffers. by @nical in #2796

GLES

• Fix index buffer state not being reset in reset_state by @rparrett in #2391
• Allow push constants trough emulation by @JCapucho in #2400
• Hal/gles: fix dirty vertex buffers that are unused by @kvark in #2427
• Fix texture description for bgra formats by @JCapucho in #2520
• Remove a log::error! debugging statement from the gles queue by @expenses in #2630
• Fix clearing depth and stencil at the same time by @expenses in #2675
• Handle cubemap copies by @expenses in #2725
• Allow clearing index buffers by @grovesNL in #2740
• Fix buffer-texture copy for 2d arrays by @tuchs in #2809

Wayland

• Search for different versions of libwayland by @sh7dm in #2336

WebGPU

• Fix compilation on wasm32-unknown-unknown without webgl feature by @jakobhellermann in #2355
• Solve crash on WebGPU by @cwfitzgerald in #2807

Emscripten

• Fix emscripten by @cwfitzgerald in #2494

Performance

• Do texture init via clear passes when possible by @Wumpf in #2307
• Bind group deduplication by @cwfitzgerald in #2623
• Tracking Optimization and Rewrite by @cwfitzgerald in #2662

Documentation

• Add defaults to new limits and correct older ones by @MultisampledNight in #/2303
• Improve shader source documentation by @grovesNL in #2315
• Fix typo by @rustui in #2393
• Add a ⭐ to the feature matrix of examples README by @yutannihilation in #2457
• Fix get_timestamp_period type in docs by @superdump in #2478
• Fix mistake in Access doc comment by @nical in #2479
• Improve shader support documentation by @cwfitzgerald in #2501
• Document the gfx_select! macro. by @jimblandy in #2555
• Add Windows 11 to section about DX12 by @HeavyRain266 in #2552
• Document some aspects of resource tracking. by @jimblandy in #2558
• Documentation for various things. by @jimblandy in #2566
• Fix doc links. by @jimblandy in #2579
• Fixed misspelling in documentation by @zenitopires in #2634
• Update push constant docs to reflect the API by @Noxime in #2637
• Exclude dependencies from documentation by @yutannihilation in #2642
• Document GpuFuture. by @jimblandy in #2644
• Document random bits and pieces. by @jimblandy in #2651
• Add cross-references to each wgpu type's documentation. by @kpreid in #2653
• RenderPassDescriptor: make label lifetime match doc, and make names descriptive. by @kpreid in #2654
• Document VertexStepMode. by @jimblandy in #2685
• Add links for SpirV documents. by @huandzh in #2697
• Add symlink LICENSE files into crates. by @dskkato in #2604
• Fix documentation links. by @jimblandy in #2756
• Improve push constant documentation, including internal docs. by @jimblandy in #2764
• Clarify docs for wgpu_core's Id and gfx_select!. by @jimblandy in #2766
• Update the Supported Platforms table in README by @jinleili in #2770
• Remove depth image from readme - we don't dictate direction of depth by @cwfitzgerald in #2812

Dependency Updates

• Update ash to 0.37 by @a1phyr in #2557
• Update parking_lot to 0.12. by @emilio in #2639
• Accept both parking-lot 0.11 and 0.12, to avoid windows-rs. by @jimblandy in #2660
• Update web-sys to 0.3.58, sparse attachments support by @jinleili in #2813
• Remove use of inplace_it by @mockersf in #2889

deno-webgpu

• Clean up features in deno by @crowlKats in #2445
• Dont panic when submitting same commandbuffer multiple times by @crowlKats in #2449
• Handle error sources to display full errors by @crowlKats in #2454
• Pull changes from deno repo by @crowlKats in #2455
• Fix cts_runner by @crowlKats in #2456
• Update deno_webgpu by @crowlKats in #2539
• Custom op arity by @crowlKats in #2542

Examples

• Fix conserative-raster low res target getting zero sized on resize by @Wumpf in #2318
• Replace run-wasm-example.sh with aliased rust crate (xtask) by @rukai in #2346
• Get cargo-run-wasm from crates.io by @rukai in #2415
• Fix msaa-line example's unnecessary MSAA data store by @jinleili in #2421
• Make shadow example runnable on iOS Android devices by @jinleili in #2433
• Blit should only draw one triangle by @CurryPseudo in #2474
• Fix wasm examples failing to compile by @Liamolucko in #2524
• Fix incorrect filtering used in mipmap generation by @LaylBongers in #2525
• Correct program output ("Steps", not "Times") by @skierpage in #2535
• Fix resizing behaviour of hello-triangle example by @FrankenApps in #2543
• Switch from cgmath to glam in examples by @a1phyr in #2544
• Generate 1x1 mip level by @davidar in #2551
• Wgpu/examples/shadow: Don't run on llvmpipe. by @jimblandy in #2595
• Avoid new WGSL reserved words in wgpu examples. by @jimblandy in #2606
• Move texture-array example over to wgsl by @cwfitzgerald in #2618
• Remove the default features from wgpu-info by @jinleili in #2753
• Fix bunnymark test screenshot and replace rand with nanorand by @stevenhuyn in #2746
• Use FIFO swapchain in examples by @cwfitzgerald in #2790

Testing/Internal

• Test WebGPU backend with extra features by @kvark in #2362
• Lint deno_webgpu & wgpu-core by @AaronO in #2403
• IdentityManager: from_index method is unneeded. by @jimblandy in #2424
• Added id32 feature by @caiiiycuk in #2464
• Update dev deps by @rukai in #2493
• Use cargo nextest for running our tests by @cwfitzgerald in #2495
• Many Steps Towards GL Testing Working by @cwfitzgerald in #2504
• Rename ci.txt to ci.yml by @simon446 in #2510
• Re-enable GL testing in CI by @cwfitzgerald in #2508
• Expect shadow example to pass on GL by @kvark in #2541
• Simplify implementation of RefCount and MultiRefCount. by @jimblandy in #2548
• Provide a proper new method for RefCount. by @jimblandy in #2570
• Add logging to LifetimeTracker::triage_suspected. by @jimblandy in #2569
• wgpu-hal: Work around cbindgen bug: ignore gles::egl module. by @jimblandy in #2576
• Specify an exact wasm-bindgen-cli version in publish.yml. by @jimblandy in #2624
• Rename timeout_us to timeout_ns, to match actual units. by @jimblandy in #2645
• Move set_index_buffer FFI functions back into wgpu. by @jimblandy in #2661
• New function: Global::create_buffer_error. by @jimblandy in #2673
• Actually use RenderBundleEncoder::set_bind_group in tests. by @jimblandy in #2678
• Eliminate wgpu_core::commands::bundle::State::raw_dynamic_offsets. by @jimblandy in #2684
• Move RenderBundleEncoder::finish's pipeline layout id into the state. by @jimblandy in #2755
• Expect shader_primitive_index tests to fail on AMD RADV POLARIS12. by @jimblandy in #2754
• Introduce VertexStep: a stride and a step mode. by @jimblandy in #2768
• Increase max_outliers on wgpu water example reftest. by @jimblandy in #2767
• wgpu_core::command::bundle: Consolidate pipeline and vertex state. by @jimblandy in #2769
• Add type annotation to render pass code, for rust-analyzer. by @jimblandy in #2773
• Expose naga span location helpers by @nical in #2752
• Add create_texture_error by @nical in #2800

wgpu-hal 0.12.5 (2022-04-19)

• fix crashes when logging in debug message callbacks
• fix program termination when dx12 or gles error messages happen.
• implement validation canary
• DX12:
  • Ignore erroneous validation error from DXGI debug layer.

wgpu-hal-0.12.4 (2022-01-24)

• Metal:
  • check for MSL-2.3

wgpu-hal-0.12.3, deno-webgpu-? (2022-01-20)

• Metal:
  • preserve vertex invariance
• Vulkan
  • fix stencil read/write masks
• Gles:
  • reset index binding properly
• DX12:
  • fix copies into 1D textures

wgpu-core-0.12.2, wgpu-hal-0.12.2 (2022-01-10)

• fix tracy compile error
• fix buffer binding limits beyond 2Gb
• fix zero initialization of 3D textures
• Metal:
  • fix surface texture views
• Gles:
  • extend libwayland search paths

wgpu-core-0.12.1, wgpu-hal-0.12.1 (2021-12-29)

• zero initialization uses now render target clears when possible (faster and doesn't enforce COPY_DST internally if not necessary)
  • fix use of MSAA targets in WebGL
  • fix not providing COPY_DST flag for textures causing assertions in some cases
  • fix surface textures not getting zero initialized
  • clear_texture supports now depth/stencil targets
• error message on creating depth/stencil volume texture
• Vulkan:
  • fix validation error on debug message types
• DX12:
  • fix check for integrated GPUs
  • fix stencil subresource transitions
• Metal:
  • implement push constants

wgpu-0.12 (2021-12-18)

• API:
  • MULTIVIEW feature
  • DEPTH_CLIP_CONTROL feature to replace the old DEPTH_CLAMP
  • TEXTURE_FORMAT_16BIT_NORM feature
  • push/pop error scopes on the device
  • more limits for compute shaders
  • SamplerBindingType instead of booleans
  • sampler arrays are supported by TEXTURE_BINDING_ARRAY feature
  • "glsl" cargo feature for accepting GLSL shader code
  • enforced MSRV-1.53
• correctness:
  • textures are zero-initialized
  • lots and lots of fixes
• validation:
  • match texture-sampler pairs
  • check min_binding_size late at draw
  • check formats to match in copy_texture_to_texture
  • allow strip_index_format to be none if unused
  • check workgroup sizes and counts
• shaders:
  • please refer to naga-0.8 changelog
  • nice error messages

wgpu-core-0.11.3, wgpu-hal-0.11.5, wgpu-0.11.1 (2021-12-01)

• Core:
  • validate device descriptor before actually creating it
  • fix validation of texture-sampler pairs
• Vulkan:
  • fix running on Vulkan-1.1 instance
  • improve detection of workaround for Intel+Nvidia on Linux
  • fix resource limits on Vulkan-1.2
  • fix the check for storage buffer requirement
  • change internal semaphore logic to work around Linux+Intel bugs
  • fix enabling extension-provided features
• GLES:
  • fix running on old and bogus drivers
  • fix stale samplers on bindings change
  • fix integer textures
  • fix querying work group parameters
  • fix stale PBO bindings caused by resource copies
  • fix rendering to cubemap faces
  • fix Rgba16Float format
  • fix stale vertex attributes when changing the pipeline
• Metal:
  • fix window resizing for running in multiple processes
• Web:
  • fix set_index_buffer and set_vertex_buffer to have optional sizes

wgpu-core-0.11.2, wgpu-hal-0.11.4 (2021-10-22)

• fix buffer transition barriers
• Metal:
  • disable RW buffers on macOS 10.11
  • fix memory leaks in render pass descriptor
• WebGL:
  • fix surface reconfiguration
• GLES:
  • fix mapping when persistent mapping isn't supported
  • allow presentation in Android emulator
  • fix sRGB attributes on EGL-1.4 contexts

wgpu-hal-0.11.3 (2021-10-16)

• GL:
  • fix mapping flags and buffer initialization
  • fix context creation when sRGB is available

wgpu-core-0.11.1 (2021-10-15)

• fix bind group layout lifetime with regard to bind groups

wgpu-hal-0.11.2 (2021-10-12)

• GL/WebGL: fix vertex buffer bindings with non-zero first instance
• DX12: fix cube array view construction

wgpu-hal-0.11.1 (2021-10-09)

• Vulkan: fix NV optimus detection on Linux
• GL:
  • fix indirect dispatch buffers
• WebGL:
  • fix querying storage-related limits
  • work around a browser bug in the clear shader

wgpu-0.11 (2021-10-07)

• Infrastructure:
  • Deno WebGPU plugin is a part of the repository
  • WebGPU CTS is ran on CI via Deno
• API:
  • initial WebGL support
  • SwapchainFrame is removed. SurfaceTexture::present() needs to be called instead of dropping.
  • better SPIR-V control flow processing
  • ability to request a software (fallback) adapter
  • new limits for min_uniform_buffer_offset_alignment and min_storage_buffer_offset_alignment
  • features:
    • new PARTIALLY_BOUND_BINDING_ARRAY
    • NON_FILL_POLYGON_MODE is split into POLYGON_MODE_LINE and POLYGON_MODE_POINT
• fixes:
  • many shader-related fixes in naga-0.7
  • fix a panic in resource cleanup happening when they are dropped on another thread
  • Vulkan:
    • create SPIR-V per entry point to work around driver bugs
    • expose higher descriptor limits based on descriptor indexing capabilities
  • GL and Vulkan:
    • Fix renderdoc device pointers
• optimization:
  • on Vulkan, bounds checks are omitted if the platform can do them natively

wgpu-core-0.10.4, wgpu-0.10.2 (2021-09-23)

• fix write_texture for array textures
• fix closing an encoder on validation error
• expose Metal surface creation
• panic with an actual error message in the default handler

wgpu-hal-0.10.7 (2021-09-14)

• Metal:
  • fix stencil back-face state
  • fix the limit on command buffer count

wgpu-hal-0.10.6 (2021-09-12)

• Metal:
  • fix stencil operations
  • fix memory leak on M1 when out of focus
  • fix depth clamping checks
  • fix unsized storage buffers beyond the first

wgpu-core-0.10.3, wgpu-hal-0.10.4 (2021-09-08)

• Vulkan:
  • fix read access barriers for writable storage buffers
  • fix shaders using cube array textures
  • work around Linux Intel+Nvidia driver conflicts
  • work around Adreno bug with OpName
• DX12:
  • fix storage binding offsets
• Metal:
  • fix compressed texture copies

wgpu-core-0.10.2, wgpu-hal-0.10.3 (2021-09-01)

• All:
  • fix querying the size of storage textures
• Vulkan:
  • use render pass labels
• Metal:
  • fix moving the surface between displays
• DX12:
  • enable BC compressed textures
• GL:
  • fix vertex-buffer and storage related limits

wgpu-core-0.10.1, wgpu-hal-0.10.2 (2021-08-24)

• All:
  • expose more formats via adapter-specific feature
  • fix creation of depth+stencil views
  • validate cube textures to not be used as storage
  • fix mip level count check for storage textures
• Metal:
  • fix usage of work group memory
• DX12:
  • critical fix of pipeline layout

v0.10 (2021-08-18)

• Infrastructure:
  • gfx-hal is replaced by the in-house graphics abstraction wgpu-hal. Backends: Vulkan, Metal, D3D-12, and OpenGL ES-3.
  • examples are tested automatically for image snapshots.
• API:
  • cross feature is removed entirely. Only Rust code from now on.
  • processing SPIR-V inputs for later translation now requires spirv compile feature enabled
  • new Features::SPIRV_SHADER_PASSTHROUGH run-time feature allows providing pass-through SPIR-V (orthogonal to the compile feature)
  • several bitflag names are renamed to plural: TextureUsage, BufferUsage, ColorWrite.
  • the SwapChain is merged into Surface. Returned frames are Texture instead of TextureView.
  • renamed TextureUsage bits: SAMPLED -> TEXTURE_BINDING, STORAGE -> STORAGE_BINDING.
  • renamed InputStepMode to VertexStepMode.
  • readable storage textures are no longer a part of the base API. Only exposed via format-specific features, non-portably.
  • implemented Rgb9e5Ufloat format.
  • added limits for binding sizes, vertex data, per-stage bindings, and others.
  • reworked downlevel flags, added downlevel limits.
  • resolver = "2" is now required in top-level cargo manifests
• Fixed:
  • Device::create_query_set would return an error when creating exactly QUERY_SET_MAX_QUERIES (8192) queries. Now it only returns an error when trying to create more than QUERY_SET_MAX_QUERIES queries.

wgpu-core-0.9.2

• fix Features::TEXTURE_SPECIFIC_FORMAT_FEATURES not being supported for rendertargets

wgpu-core-0.9.1 (2021-07-13)

• fix buffer inits delayed by a frame
• fix query resolves to initialize buffers
• fix pipeline statistics stride
• fix the check for maximum query count

v0.9 (2021-06-18)

• Updated:
  • naga to v0.5.
• Added:
  • Features::VERTEX_WRITABLE_STORAGE.
  • Features::CLEAR_COMMANDS which allows you to use cmd_buf.clear_texture and cmd_buf.clear_buffer.
• Changed:
  • Updated default storage buffer/image limit to 8 from 4.
• Fixed:
  • Buffer::get_mapped_range can now have a range of zero.
  • Fixed output spirv requiring the "kernel" capability.
  • Fixed segfault due to improper drop order.
  • Fixed incorrect dynamic stencil reference for Replace ops.
  • Fixed tracking of temporary resources.
  • Stopped unconditionally adding cubemap flags when the backend doesn't support cubemaps.
• Validation:
  • Ensure that if resources are viewed from the vertex stage, they are read only unless Features::VERTEX_WRITABLE_STORAGE is true.
  • Ensure storage class (i.e. storage vs uniform) is consistent between the shader and the pipeline layout.
  • Error when a color texture is used as a depth/stencil texture.
  • Check that pipeline output formats are logical
  • Added shader label to log messages if validation fails.
• Tracing:
  • Make renderpasses show up in the trace before they are run.
• Docs:
  • Fix typo in PowerPreference::LowPower description.
• Player:
  • Automatically start and stop RenderDoc captures.
• Examples:
  • Handle winit's unconditional exception.
• Internal:
  • Merged wgpu-rs and wgpu back into a single repository.
  • The tracker was split into two different stateful/stateless trackers to reduce overhead.
  • Added code coverage testing
  • CI can now test on lavapipe
  • Add missing extern "C" in wgpu-core on wgpu_render_pass_execute_bundles
  • Fix incorrect function name wgpu_render_pass_bundle_indexed_indirect to wgpu_render_bundle_draw_indexed_indirect.

wgpu-types-0.8.1 (2021-06-08)

• fix dynamic stencil reference for Replace ops

v0.8.1 (2021-05-06)

• fix SPIR-V generation from WGSL, which was broken due to "Kernel" capability
• validate buffer storage classes
• Added support for storage texture arrays for Vulkan and Metal.

v0.8 (2021-04-29)

• naga is used by default to translate shaders, SPIRV-Cross is optional behind cross feature
• Features:
  • buffers are zero-initialized
  • downlevel limits for DX11/OpenGL support
  • conservative rasterization (native-only)
  • buffer resource indexing (native-only)
• API adjustments to the spec:
  • Renamed RenderPassColorAttachmentDescriptor to RenderPassColorAttachment:
    • Renamed the attachment member to view
  • Renamed RenderPassDepthStencilAttachmentDescriptor to RenderPassDepthStencilAttachment:
    • Renamed the attachment member to view
  • Renamed VertexFormat values
    • Examples: Float3 -> Float32x3, Ushort2 -> Uint16x2
  • Renamed the depth value of Extent3d to depth_or_array_layers
  • Updated blending options in ColorTargetState:
    • Renamed BlendState to BlendComponent
    • Added BlendState struct to hold color and alpha blend state
    • Moved color_blend and alpha_blend members into blend member
  • Moved clamp_depth from RastizerState to PrimitiveState
  • Updated PrimitiveState:
    • Added conservative member for enabling conservative rasterization
  • Updated copy view structs:
    • Renamed TextureCopyView to ImageCopyTexture
    • Renamed TextureDataLayout to ImageDataLayout
    • Changed bytes_per_row and rows_per_image members of ImageDataLayout from u32 to Option<NonZeroU32>
  • Changed BindingResource::Binding from containing fields directly to containing a BufferBinding
  • Added BindingResource::BufferArray
• Infrastructure:
  • switch from tracing to profiling
  • more concrete and detailed errors
  • API traces include the command that crashed/panicked
  • Vulkan Portability support is removed from Apple platforms
• Validation:
  • texture bindings
  • filtering of textures by samplers
  • interpolation qualifiers
  • allow vertex components to be underspecified

wgpu-core-0.7.1 (2021-02-25)

• expose wgc::device::queue sub-module in public
• fix the indexed buffer check
• fix command allocator race condition

v0.7 (2021-01-31)

• Major API changes:
  • RenderPipelineDescriptor
  • BindingType
  • new ShaderModuleDescriptor
  • new RenderEncoder
• Features:
  • (beta) WGSL support, including the ability to bypass SPIR-V entirely
  • (beta) implicit bind group layout support
  • better error messages
  • timestamp and pipeline statistics queries
  • ETC2 and ASTC compressed textures
  • (beta) targeting Wasm with WebGL backend
  • reduced dependencies
  • Native-only:
    • clamp-to-border addressing
    • polygon fill modes
    • query a format for extra capabilities
    • f64 support in shaders
• Validation:
  • shader interface
  • render pipeline descriptor
  • vertex buffers

wgpu-0.6.2 (2020-11-24)

• don't panic in the staging belt if the channel is dropped

v0.6 (2020-08-17)

• Crates:
  • C API is moved to another repository
  • player: standalone API replayer and tester
• Features:
  • Proper error handling with all functions returning Result
  • Graceful handling of "error" objects
  • API tracing infrastructure
  • uploading data with write_buffer/write_texture queue operations
  • reusable render bundles
  • read-only depth/stencil attachments
  • bind group layout deduplication
  • Cows, cows everywhere
  • Web+Native features:
    • Depth clamping (feature)
    • BC texture compression
  • Native-only features:
    • mappable primary buffers
    • texture array bindings
    • push constants
    • multi-draw indirect
• Validation:
  • all transfer operations
  • all resource creation
  • bind group matching to the layout
  • experimental shader interface matching with naga

wgpu-core-0.5.6 (2020-07-09)

• add debug markers support

wgpu-core-0.5.5 (2020-05-20)

• fix destruction of adapters, swap chains, and bind group layouts
• fix command pool leak with temporary threads
• improve assertion messages
• implement From<TextureFormat> for TextureComponentType

wgpu-core-0.5.4 (2020-04-24)

• fix memory management of staging buffers

wgpu-core-0.5.3 (2020-04-18)

• fix reading access to storage textures
• another fix to layout transitions for swapchain images

wgpu-core-0.5.2 (2020-04-15)

• fix read-only storage flags
• fix pipeline layout life time
• improve various assert messages

wgpu-core-0.5.1 (2020-04-10)

• fix tracking of swapchain images that are used multiple times in a command buffer
• fix tracking of initial usage of a resource across a command buffer

v0.5 (2020-04-06)

• Crates:
  • wgpu-types: common types between native and web targets
  • wgpu-core: internal API for the native and remote wrappers
• Features:
  • based on gfx-hal-0.5
  • moved from Rendy to the new gfx-memory and gfx-descriptor crates
  • passes are now recorded on the client side. The user is also responsible to keep all resources referenced in the pass up until it ends recording.
  • coordinate system is changed to have Y up in the rendering space
  • revised GPU lifetime tracking of all resources
  • revised usage tracking logic
  • all IDs are now non-zero
  • Mailbox present mode
• Validation:
  • active pipeline
• Fixes:
  • lots of small API changes to closely match upstream WebGPU
  • true read-only storage bindings
  • unmapping dropped buffers
  • better error messages on misused swapchain frames

wgpu-core-0.4.3 (2020-01-20)

• improved swap chain error handling

wgpu-core-0.4.2 (2019-12-15)

• fixed render pass transitions

wgpu-core-0.4.1 (2019-11-28)

• fixed depth/stencil transitions
• fixed dynamic offset iteration

v0.4 (2019-11-03)

• Platforms: removed OpenGL/WebGL support temporarily
• Features:
  • based on gfx-hal-0.4 with the new swapchain model
  • exposing adapters from all available backends on a system
  • tracking of samplers
  • cube map support with an example
• Validation:
  • buffer and texture usage

wgpu-core-0.3.3 (2019-08-22)

• fixed instance creation on Windows

wgpu-core-0.3.1 (2019-08-21)

• fixed pipeline barriers that aren't transitions

v0.3 (2019-08-21)

• Platforms: experimental OpenGL/WebGL
• Crates:
  • Rust API is moved out to another repository
• Features:
  • based on gfx-hal-0.3 with help of rendy-memory and rendy-descriptor
  • type-system-assisted deadlock prevention (for locking internal structures)
  • texture sub-resource tracking
  • raw-window-handle integration instead of winit
  • multisampling with an example
  • indirect draws and dispatches
  • stencil masks and reference values
  • native "compute" example
  • everything implements Debug
• Validation
  • vertex/index/instance ranges at draw calls
  • bing groups vs their expected layouts
  • bind group buffer ranges
  • required stencil reference, blend color

wgpu-core-0.2.6 (2019-04-04)

• fixed frame acquisition GPU waits

wgpu-core-0.2.5 (2019-03-31)

• fixed submission tracking
• added support for blend colors
• fixed bind group compatibility at the gfx-hal level
• validating the bind groups and blend colors

wgpu-core-0.2.3 (2019-03-20)

• fixed vertex format mapping
• fixed building with "empty" backend on Windows
• bumped the default descriptor pool size
• fixed host mapping alignments
• validating the uniform buffer offset

v0.2 (2019-03-06)

• Platforms: iOS/Metal, D3D11
• Crates:
  • wgpu-remote: remoting layer for the cross-process boundary
  • gfx-examples: selected gfx pre-ll examples ported over
• Features:
  • native example for compute
  • "gfx-cube" and "gfx-shadow" examples
  • copies between buffers and textures
  • separate object identity for the remote client
  • texture view tracking
  • native swapchain resize support
  • buffer mapping
  • object index epochs
  • comprehensive list of vertex and texture formats
  • validation of pipeline compatibility with the pass
• Fixes
  • fixed resource destruction

v0.1 (2019-01-24)

• Platforms: Linux/Vulkan, Windows/Vulkan, D3D12, macOS/Metal
• Crates:
  • wgpu-native: C API implementation of WebGPU, based on gfx-hal
  • wgpu-bindings: auto-generated C headers
  • wgpu: idiomatic Rust wrapper
  • examples: native C examples
• Features:
• native examples for triangle rendering
• basic native swapchain integration
• concept of the storage hub
• basic recording of passes and command buffers
• submission-based lifetime tracking and command buffer recycling
• automatic resource transitions