instanceDescriptorBuffer
A buffer that contains descriptions of each instance in the acceleration structure.
Declaration
var instanceDescriptorBuffer: (any MTLBuffer)? { get set }Discussion
You need to set a buffer before creating the instanced acceleration structure. The buffer needs to contain a list of instance data structures, each defining the characteristics of an instance. The descriptor’s instanceDescriptorType property determines which memory layout to use for the instance data; see MTLAccelerationStructureInstanceDescriptorType for more information.