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The setVertexBuffer() method of the GPURenderBundleEncoder interface sets or unsets the current GPUBuffer for the given slot that will provide vertex data for subsequent drawing commands.
Note: This method is functionally identical to its equivalent on GPURenderPassEncoder â setVertexBuffer().
setVertexBuffer(slot, buffer, offset, size)
slot
A number referencing the vertex buffer slot to set the vertex buffer for.
buffer
A GPUBuffer representing the buffer containing the vertex data to use for subsequent drawing commands, or null, in which case any previously-set buffer in the given slot is unset.
offset Optional
A number representing the offset, in bytes, into buffer where the vertex data begins. If omitted, offset defaults to 0.
size Optional
A number representing the size, in bytes, of the vertex data contained in buffer. If omitted, size defaults to the buffer's GPUBuffer.size - offset.
None (Undefined).
The following criteria must be met when calling setVertexBuffer(), otherwise a GPUValidationError is generated and the GPURenderBundleEncoder becomes invalid:
buffer's GPUBuffer.usage contains the GPUBufferUsage.VERTEX flag.slot is less than the GPUDevice's maxVertexBuffers limit.offset + size is less than or equal to the buffer's GPUBuffer.size.offset is a multiple of 4.function recordRenderPass(passEncoder) {
if (settings.dynamicOffsets) {
passEncoder.setPipeline(dynamicPipeline);
} else {
passEncoder.setPipeline(pipeline);
}
passEncoder.setVertexBuffer(0, vertexBuffer);
passEncoder.setBindGroup(0, timeBindGroup);
const dynamicOffsets = [0];
for (let i = 0; i < numTriangles; ++i) {
if (settings.dynamicOffsets) {
dynamicOffsets[0] = i * alignedUniformBytes;
passEncoder.setBindGroup(1, dynamicBindGroup, dynamicOffsets);
} else {
passEncoder.setBindGroup(1, bindGroups[i]);
}
passEncoder.draw(3, 1, 0, 0);
}
}
The above snippet is taken from the WebGPU Samples Animometer example.
Unset vertex buffer// Set vertex buffer in slot 0
passEncoder.setVertexBuffer(0, vertexBuffer);
// Later, unset vertex buffer in slot 0
passEncoder.setVertexBuffer(0, null);
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