GPUQueue

label Experimental

A string providing a label that can be used to identify the object, for example in GPUError messages or console warnings.

copyExternalImageToTexture() Experimental

Copies a snapshot taken from a source image, video, or canvas into a given GPUTexture.

onSubmittedWorkDone() Experimental

Returns a Promise that resolves when all the work submitted to the GPU via this GPUQueue at the point the method is called has been processed.

submit() Experimental

Schedules the execution of command buffers represented by one or more GPUCommandBuffer objects by the GPU.

writeBuffer() Experimental

Writes a provided data source into a given GPUBuffer.

writeTexture() Experimental

Writes a provided data source into a given GPUTexture.

In our basic render demo, we define some vertex data in a Float32Array that we'll use to draw a triangle:

const vertices = new Float32Array([
  0.0, 0.6, 0, 1, 1, 0, 0, 1, -0.5, -0.6, 0, 1, 0, 1, 0, 1, 0.5, -0.6, 0, 1, 0,
  0, 1, 1,
]);

To use this data in a render pipeline, we need to put it into a GPUBuffer. First we'll create the buffer:

const vertexBuffer = device.createBuffer({
  size: vertices.byteLength, // make it big enough to store vertices in
  usage: GPUBufferUsage.VERTEX | GPUBufferUsage.COPY_DST,
});

To get the data into the buffer we can use the writeBuffer() function, which lets the user agent determine most efficient way to copy the data over:

device.queue.writeBuffer(vertexBuffer, 0, vertices, 0, vertices.length);

Later on, a set of commands is encoded into a GPUCommandBuffer using the GPUCommandEncoder.finish() method. The command buffer is then passed into the queue via a submit() call, ready to be processed by the GPU.

device.queue.submit([commandEncoder.finish()]);

• The WebGPU API