luma.gl/modules/webgpu/docs/webgpu-vs-webgl.md

WebGPU vs WebGL (v9)

WebGPU is the next generation GPU API for the browser.

This section explains some of the notable differences between WebGPU and WebGL. This is essentially a set of author's notes, included for the curious.

WebGPU Device vs WebGL Context

A WebGL context is associated with a specific canvas.

• The default drawing buffer is associated with the canvas

• Rendering to other canvases either requires separate WebGL contexts (with duplicated GPU resources) or going through hoops with framebuffer rendering and image copies.

• A WebGPU device enables the application to create separate swap chains for different canvases and reuse resources

Parameters and State Management

In WebGL many parameters are set on the WebGL context using individual function calls.

• This does cause problems when trying to make different modules work together.
• But it does make it easier to change settings between draw calls.

Programs