The index of the vertex buffer containing data for this attribute in a mesh’s vertexBuffers array.
Mac Catalyst 13.0+Beta
A mesh may store vertex data in either a structure of arrays model, where data for each attribute lies in a separate vertex buffer, or in an array of structures model. In the latter, multiple vertex attributes share the same buffer (and thus have the same bufferIndex value), and the format and offset values (together with the stride value of a related MDLVertexBufferLayout object) identify which bytes in that buffer refer to which vertex attributes.
The default value for vertex data for this attribute.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.