Instance Method

initWithVertexDescriptor:

Creates a new vertex descriptor by performing a deep copy of the specified vertex descriptor.

Declaration

- (instancetype)initWithVertexDescriptor:(MDLVertexDescriptor *)vertexDescriptor;

Parameters

vertexDescriptor

The vertex descriptor from which to copy information.

Return Value

A new vertex descriptor that is an indpendent copy of the specified vertex descriptor.

Discussion

A vertex descriptor does not own vertex data—vertex data belongs to the vertexBuffers property of the mesh that owns a vertex descriptor—so this method does not copy vertex data. A call to the copy or copyWithZone: method uses this initializer to produce a fully independent copy of the original instance.

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