Structures

VkPhysicalDeviceDescriptorBufferFeaturesEXT

Structure describing the descriptor buffer features that can be supported by an implementation

The VkPhysicalDeviceDescriptorBufferFeaturesEXT structure is defined as:

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_EXTmust 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. If the application wishes to use a VkDevice with any features described by VkPhysicalDeviceDescriptorBufferFeaturesEXT, it must add an instance of the structure, with the desired feature members set to VK_TRUE, to the pNext chain of VkDeviceCreateInfo when creating the VkDevice.

Valid Usage (Implicit)

VUID-VkPhysicalDeviceDescriptorBufferFeaturesEXT-sType-sType

sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DESCRIPTOR_BUFFER_FEATURES_EXT