GPURenderPassEncoder: setBlendConstant() method
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
Note: This feature is available in Web Workers.
The setBlendConstant() method of the
GPURenderPassEncoder interface sets the constant blend color and alpha values used with "constant" and "one-minus-constant" blend factors (as set in the descriptor of the GPUDevice.createRenderPipeline() method, in the blend property).
Syntax
setBlendConstant(color)
Parameters
color-
An object or array representing the color to use when blending — the
r,g,b, andacomponents are represented as floating point numbers between 0.0 and 1.0.What follows is an object example:
jsconst color = { r: 0.0, g: 0.5, b: 1.0, a: 1.0 };The array equivalent would look like this:
jsconst color = [0.0, 0.5, 1.0, 1.0];
Note:
If a setBlendConstant() call is not made, the blend constant color value defaults to (0, 0, 0, 0) for each render pass.
Return value
None (Undefined).
Examples
// …
const passEncoder = commandEncoder.beginRenderPass(renderPassDescriptor);
passEncoder.setPipeline(renderPipeline);
passEncoder.setVertexBuffer(0, vertexBuffer);
passEncoder.setBlendConstant([1.0, 0.0, 0.0, 1.0]);
passEncoder.draw(3);
passEncoder.end();
// …
Specifications
| Specification |
|---|
| WebGPU # dom-gpurenderpassencoder-setblendconstant |
Browser compatibility
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See also
- The WebGPU API