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;

Members

  • 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.

Description

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
    sType must be VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET_ACCELERATION_STRUCTURE_NV

  • 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

VK_NV_ray_tracing, VkAccelerationStructureNV, VkStructureType

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.

Copyright

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0