C Specification
The type of descriptors in a descriptor set is specified by
VkWriteDescriptorSet::descriptorType
, which must be one of the
values:
// Provided by VK_VERSION_1_0
typedef enum VkDescriptorType {
VK_DESCRIPTOR_TYPE_SAMPLER = 0,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER = 1,
VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE = 2,
VK_DESCRIPTOR_TYPE_STORAGE_IMAGE = 3,
VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER = 4,
VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER = 5,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER = 6,
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER = 7,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC = 8,
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC = 9,
VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT = 10,
} VkDescriptorType;
Description
-
VK_DESCRIPTOR_TYPE_SAMPLER
specifies a sampler descriptor. -
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
specifies a combined image sampler descriptor. -
VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE
specifies a sampled image descriptor. -
VK_DESCRIPTOR_TYPE_STORAGE_IMAGE
specifies a storage image descriptor. -
VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
specifies a uniform texel buffer descriptor. -
VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
specifies a storage texel buffer descriptor. -
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
specifies a uniform buffer descriptor. -
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER
specifies a storage buffer descriptor. -
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
specifies a dynamic uniform buffer descriptor. -
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
specifies a dynamic storage buffer descriptor. -
VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT
specifies an input attachment descriptor.
When a descriptor set is updated via elements of VkWriteDescriptorSet,
members of pImageInfo
, pBufferInfo
and pTexelBufferView
are only accessed by the implementation when they correspond to descriptor
type being defined - otherwise they are ignored.
The members accessed are as follows for each descriptor type:
-
For
VK_DESCRIPTOR_TYPE_SAMPLER
, only thesampler
member of each element of VkWriteDescriptorSet::pImageInfo
is accessed. -
For
VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE
,VK_DESCRIPTOR_TYPE_STORAGE_IMAGE
, orVK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT
, only theimageView
andimageLayout
members of each element of VkWriteDescriptorSet::pImageInfo
are accessed. -
For
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
, all members of each element of VkWriteDescriptorSet::pImageInfo
are accessed. -
For
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
,VK_DESCRIPTOR_TYPE_STORAGE_BUFFER
,VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
, orVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
, all members of each element of VkWriteDescriptorSet::pBufferInfo
are accessed. -
For
VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
orVK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
, each element of VkWriteDescriptorSet::pTexelBufferView
is accessed.
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.