C Specification

The VkPhysicalDeviceDescriptorBufferFeaturesEXT structure is defined as:

// Provided by VK_EXT_descriptor_buffer
typedef struct VkPhysicalDeviceDescriptorBufferFeaturesEXT {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           descriptorBuffer;
    VkBool32           descriptorBufferCaptureReplay;
    VkBool32           descriptorBufferImageLayoutIgnored;
    VkBool32           descriptorBufferPushDescriptors;
} VkPhysicalDeviceDescriptorBufferFeaturesEXT;


This structure describes the following feature:

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • descriptorBuffer indicates that the implementation supports putting shader-accessible descriptors directly in memory.

  • descriptorBufferCaptureReplay indicates that the implementation supports capture and replay when using descriptor buffers. If this is VK_TRUE, all resources created with VK_BUFFER_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT, VK_IMAGE_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT, VK_IMAGE_VIEW_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT, VK_SAMPLER_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT, or VK_ACCELERATION_STRUCTURE_CREATE_DESCRIPTOR_BUFFER_CAPTURE_REPLAY_BIT_EXT must be created before resources of the same types without those flags.

  • descriptorBufferImageLayoutIgnored indicates that the implementation will ignore imageLayout in VkDescriptorImageInfo when calling vkGetDescriptorEXT.

  • descriptorBufferPushDescriptors indicates that the implementation supports using push descriptors with descriptor buffers.


If the VkPhysicalDeviceDescriptorBufferFeaturesEXT structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. VkPhysicalDeviceDescriptorBufferFeaturesEXT can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.

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

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.

Copyright 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0