@interface MPSCPUAccelerationStructureTriangleGeometryDescriptor : MPSCPUAccelerationStructureGeometryDescriptor @property (nonatomic) void *vertexData; @property (nonatomic) unsigned long long vertexStride; @property (nonatomic) void *indexData; @property (nonatomic) unsigned int indexDataType; @property (nonatomic) unsigned long long triangleCount; - (id)init; @end