VkWriteDescriptorSetPartitionedAccelerationStructureNV

If the descriptorType member of VkWriteDescriptorSet is VK_DESCRIPTOR_TYPE_PARTITIONED_ACCELERATION_STRUCTURE_NV, then the data to write to the descriptor set is specified through a VkWriteDescriptorSetPartitionedAccelerationStructureNV structure included in the pNext chain of VkWriteDescriptorSet.

The VkWriteDescriptorSetPartitionedAccelerationStructureNV structure is defined as:

typedef struct VkWriteDescriptorSetPartitionedAccelerationStructureNV {
    VkStructureType sType;
    void* pNext;
    uint32_t accelerationStructureCount;
    const VkDeviceAddress* pAccelerationStructures;
} VkWriteDescriptorSetPartitionedAccelerationStructureNV;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• accelerationStructureCount is the number of elements in pAccelerationStructures.
• pAccelerationStructures is a pointer to an array of accelerationStructureCount device addresses pointing to previously built PTLAS.