GPURenderBundleEncoder: drawIndexed() method

The drawIndexed() method of the GPURenderBundleEncoder interface draws indexed primitives based on the vertex and index buffers provided by setVertexBuffer() and setIndexBuffer().

Syntax

drawIndexed(indexCount)
drawIndexed(indexCount, instanceCount)
drawIndexed(indexCount, instanceCount, firstIndex)
drawIndexed(indexCount, instanceCount, firstIndex, baseVertex)
drawIndexed(indexCount, instanceCount, firstIndex, baseVertex, firstInstance)

Parameters

indexCount

A number defining the number of indices to draw.

instanceCount Optional

A number defining the number of instances to draw. If omitted, instanceCount defaults to 1.

firstIndex Optional

A number defining the offset into the index buffer, in indices, to begin drawing from. If omitted, firstIndex defaults to 0.

baseVertex Optional

A number added to each index value before indexing into the vertex buffers. If omitted, baseVertex defaults to 0.

firstInstance Optional

A number defining the first instance to draw. If omitted, firstInstance defaults to 0.

Return value

None (Undefined).

Examples

// …

const bundleEncoder = device.createRenderBundleEncoder(descriptor);

bundleEncoder.setPipeline(pipeline);
bundleEncoder.setBindGroup(0, sceneBindGroupForRender);
bundleEncoder.setBindGroup(1, modelBindGroup);
bundleEncoder.setVertexBuffer(0, vertexBuffer);
bundleEncoder.setIndexBuffer(indexBuffer, "uint16");
bundleEncoder.drawIndexed(indexCount);

const renderBundle = bundleEncoder.finish();

// …

Specifications

Browser compatibility

See also

• The WebGPU API