Struct maplibre::render::graph::EmptyNode

pub struct EmptyNode;

A Node without any inputs, outputs and subgraphs, which does nothing when run. Used (as a label) to bundle multiple dependencies into one inside the RenderGraph.

Trait Implementations

impl Node for EmptyNode

fn run(
    &self,
    _graph: &mut RenderGraphContext<'_>,
    _render_context: &mut RenderContext<'_>,
    _state: &RenderState
) -> Result<(), NodeRunError>

Runs the graph node logic, issues draw calls, updates the output slots and optionally queues up subgraphs for execution. The graph data, input and output values are passed via the RenderGraphContext.

fn input(&self) -> Vec<SlotInfo>

Specifies the required input slots for this node. They will then be available during the run method inside the RenderGraphContext.

fn output(&self) -> Vec<SlotInfo>

Specifies the produced output slots for this node. They can then be passed one inside RenderGraphContext during the run method.

fn update(&mut self, _state: &mut RenderState)

Updates internal node state using the current RenderState prior to the run method.