VkPhysicalDeviceClusterCullingShaderPropertiesHUAWEI

The VkPhysicalDeviceClusterCullingShaderPropertiesHUAWEI structure is defined as:

typedef struct VkPhysicalDeviceClusterCullingShaderPropertiesHUAWEI {
    VkStructureType sType;
    void* pNext;
    uint32_t maxWorkGroupCount[3];
    uint32_t maxWorkGroupSize[3];
    uint32_t maxOutputClusterCount;
    VkDeviceSize indirectBufferOffsetAlignment;
} VkPhysicalDeviceClusterCullingShaderPropertiesHUAWEI;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• maxWorkGroupCount[3] is the maximum number of local workgroups that can be launched by a single command. These three value represent the maximum local workgroup count in the X, Y and Z dimensions, respectively. In the current implementation, the values of Y and Z are both implicitly set as one. groupCountX of DrawCluster command must be less than or equal to maxWorkGroupCount[0].
• maxWorkGroupSize[3] is the maximum size of a local workgroup. These three value represent the maximum local workgroup size in the X, Y and Z dimensions, respectively. The x, y and z sizes, as specified by the LocalSize or LocalSizeId execution mode or by the object decorated by the WorkgroupSize decoration in shader modules, must be less than or equal to the corresponding limit. In the current implementation, the maximum workgroup size of the X dimension is 32, the others are 1.
• maxOutputClusterCount is the maximum number of output cluster a single cluster culling shader workgroup can emit.
• indirectBufferOffsetAlignment indicates the alignment for cluster drawing command buffer stride. vkCmdDrawClusterIndirectHUAWEI::offset must be a multiple of this value.

If the VkPhysicalDeviceClusterCullingShaderPropertiesHUAWEI structure is included in the pNext chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with each corresponding implementation-dependent property.