C Specification

The VkWriteDescriptorSetAccelerationStructureNV structure is defined as:

// Provided by VK_NV_ray_tracing
typedef struct VkWriteDescriptorSetAccelerationStructureNV {
    VkStructureType                     sType;
    const void*                         pNext;
    uint32_t                            accelerationStructureCount;
    const VkAccelerationStructureNV*    pAccelerationStructures;
} VkWriteDescriptorSetAccelerationStructureNV;


  • 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 VkAccelerationStructureNV structures specifying the acceleration structures to update.


Valid Usage
  • VUID-VkWriteDescriptorSetAccelerationStructureNV-accelerationStructureCount-03747
    accelerationStructureCount must be equal to descriptorCount in the extended structure

  • VUID-VkWriteDescriptorSetAccelerationStructureNV-pAccelerationStructures-03748
    Each acceleration structure in pAccelerationStructures must have been created with VK_ACCELERATION_STRUCTURE_TYPE_TOP_LEVEL_KHR

  • VUID-VkWriteDescriptorSetAccelerationStructureNV-pAccelerationStructures-03749
    If the nullDescriptor feature is not enabled, each member of pAccelerationStructures must not be VK_NULL_HANDLE

Valid Usage (Implicit)
  • VUID-VkWriteDescriptorSetAccelerationStructureNV-sType-sType

  • VUID-VkWriteDescriptorSetAccelerationStructureNV-pAccelerationStructures-parameter
    pAccelerationStructures must be a valid pointer to an array of accelerationStructureCount valid or VK_NULL_HANDLE VkAccelerationStructureNV handles

  • VUID-VkWriteDescriptorSetAccelerationStructureNV-accelerationStructureCount-arraylength
    accelerationStructureCount must be greater than 0

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

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SPDX-License-Identifier: CC-BY-4.0