39. Limits
Limits are implementation-dependent minimums, maximums, and other device characteristics that an application may need to be aware of.
Note
Limits are reported via the basic VkPhysicalDeviceLimits structure, as
well as the extensible structure |
The VkPhysicalDeviceLimits
structure is defined as:
// Provided by VK_VERSION_1_0
typedef struct VkPhysicalDeviceLimits {
uint32_t maxImageDimension1D;
uint32_t maxImageDimension2D;
uint32_t maxImageDimension3D;
uint32_t maxImageDimensionCube;
uint32_t maxImageArrayLayers;
uint32_t maxTexelBufferElements;
uint32_t maxUniformBufferRange;
uint32_t maxStorageBufferRange;
uint32_t maxPushConstantsSize;
uint32_t maxMemoryAllocationCount;
uint32_t maxSamplerAllocationCount;
VkDeviceSize bufferImageGranularity;
VkDeviceSize sparseAddressSpaceSize;
uint32_t maxBoundDescriptorSets;
uint32_t maxPerStageDescriptorSamplers;
uint32_t maxPerStageDescriptorUniformBuffers;
uint32_t maxPerStageDescriptorStorageBuffers;
uint32_t maxPerStageDescriptorSampledImages;
uint32_t maxPerStageDescriptorStorageImages;
uint32_t maxPerStageDescriptorInputAttachments;
uint32_t maxPerStageResources;
uint32_t maxDescriptorSetSamplers;
uint32_t maxDescriptorSetUniformBuffers;
uint32_t maxDescriptorSetUniformBuffersDynamic;
uint32_t maxDescriptorSetStorageBuffers;
uint32_t maxDescriptorSetStorageBuffersDynamic;
uint32_t maxDescriptorSetSampledImages;
uint32_t maxDescriptorSetStorageImages;
uint32_t maxDescriptorSetInputAttachments;
uint32_t maxVertexInputAttributes;
uint32_t maxVertexInputBindings;
uint32_t maxVertexInputAttributeOffset;
uint32_t maxVertexInputBindingStride;
uint32_t maxVertexOutputComponents;
uint32_t maxTessellationGenerationLevel;
uint32_t maxTessellationPatchSize;
uint32_t maxTessellationControlPerVertexInputComponents;
uint32_t maxTessellationControlPerVertexOutputComponents;
uint32_t maxTessellationControlPerPatchOutputComponents;
uint32_t maxTessellationControlTotalOutputComponents;
uint32_t maxTessellationEvaluationInputComponents;
uint32_t maxTessellationEvaluationOutputComponents;
uint32_t maxGeometryShaderInvocations;
uint32_t maxGeometryInputComponents;
uint32_t maxGeometryOutputComponents;
uint32_t maxGeometryOutputVertices;
uint32_t maxGeometryTotalOutputComponents;
uint32_t maxFragmentInputComponents;
uint32_t maxFragmentOutputAttachments;
uint32_t maxFragmentDualSrcAttachments;
uint32_t maxFragmentCombinedOutputResources;
uint32_t maxComputeSharedMemorySize;
uint32_t maxComputeWorkGroupCount[3];
uint32_t maxComputeWorkGroupInvocations;
uint32_t maxComputeWorkGroupSize[3];
uint32_t subPixelPrecisionBits;
uint32_t subTexelPrecisionBits;
uint32_t mipmapPrecisionBits;
uint32_t maxDrawIndexedIndexValue;
uint32_t maxDrawIndirectCount;
float maxSamplerLodBias;
float maxSamplerAnisotropy;
uint32_t maxViewports;
uint32_t maxViewportDimensions[2];
float viewportBoundsRange[2];
uint32_t viewportSubPixelBits;
size_t minMemoryMapAlignment;
VkDeviceSize minTexelBufferOffsetAlignment;
VkDeviceSize minUniformBufferOffsetAlignment;
VkDeviceSize minStorageBufferOffsetAlignment;
int32_t minTexelOffset;
uint32_t maxTexelOffset;
int32_t minTexelGatherOffset;
uint32_t maxTexelGatherOffset;
float minInterpolationOffset;
float maxInterpolationOffset;
uint32_t subPixelInterpolationOffsetBits;
uint32_t maxFramebufferWidth;
uint32_t maxFramebufferHeight;
uint32_t maxFramebufferLayers;
VkSampleCountFlags framebufferColorSampleCounts;
VkSampleCountFlags framebufferDepthSampleCounts;
VkSampleCountFlags framebufferStencilSampleCounts;
VkSampleCountFlags framebufferNoAttachmentsSampleCounts;
uint32_t maxColorAttachments;
VkSampleCountFlags sampledImageColorSampleCounts;
VkSampleCountFlags sampledImageIntegerSampleCounts;
VkSampleCountFlags sampledImageDepthSampleCounts;
VkSampleCountFlags sampledImageStencilSampleCounts;
VkSampleCountFlags storageImageSampleCounts;
uint32_t maxSampleMaskWords;
VkBool32 timestampComputeAndGraphics;
float timestampPeriod;
uint32_t maxClipDistances;
uint32_t maxCullDistances;
uint32_t maxCombinedClipAndCullDistances;
uint32_t discreteQueuePriorities;
float pointSizeRange[2];
float lineWidthRange[2];
float pointSizeGranularity;
float lineWidthGranularity;
VkBool32 strictLines;
VkBool32 standardSampleLocations;
VkDeviceSize optimalBufferCopyOffsetAlignment;
VkDeviceSize optimalBufferCopyRowPitchAlignment;
VkDeviceSize nonCoherentAtomSize;
} VkPhysicalDeviceLimits;
The VkPhysicalDeviceLimits
are properties of the physical device.
These are available in the limits
member of the
VkPhysicalDeviceProperties structure which is returned from
vkGetPhysicalDeviceProperties.
-
maxImageDimension1D
is the largest dimension (width
) that is guaranteed to be supported for all images created with animageType
ofVK_IMAGE_TYPE_1D
. Some combinations of image parameters (format, usage, etc.) may allow support for larger dimensions, which can be queried using vkGetPhysicalDeviceImageFormatProperties. -
maxImageDimension2D
is the largest dimension (width
orheight
) that is guaranteed to be supported for all images created with animageType
ofVK_IMAGE_TYPE_2D
and withoutVK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT
set inflags
. Some combinations of image parameters (format, usage, etc.) may allow support for larger dimensions, which can be queried using vkGetPhysicalDeviceImageFormatProperties. -
maxImageDimension3D
is the largest dimension (width
,height
, ordepth
) that is guaranteed to be supported for all images created with animageType
ofVK_IMAGE_TYPE_3D
. Some combinations of image parameters (format, usage, etc.) may allow support for larger dimensions, which can be queried using vkGetPhysicalDeviceImageFormatProperties. -
maxImageDimensionCube
is the largest dimension (width
orheight
) that is guaranteed to be supported for all images created with animageType
ofVK_IMAGE_TYPE_2D
and withVK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT
set inflags
. Some combinations of image parameters (format, usage, etc.) may allow support for larger dimensions, which can be queried using vkGetPhysicalDeviceImageFormatProperties. -
maxImageArrayLayers
is the maximum number of layers (arrayLayers
) for an image. -
maxTexelBufferElements
is the maximum number of addressable texels for a buffer view created on a buffer which was created with theVK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT
orVK_BUFFER_USAGE_STORAGE_TEXEL_BUFFER_BIT
set in theusage
member of the VkBufferCreateInfo structure. -
maxUniformBufferRange
is the maximum value that can be specified in therange
member of any VkDescriptorBufferInfo structures passed to a call to vkUpdateDescriptorSets for descriptors of typeVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
orVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
. -
maxStorageBufferRange
is the maximum value that can be specified in therange
member of any VkDescriptorBufferInfo structures passed to a call to vkUpdateDescriptorSets for descriptors of typeVK_DESCRIPTOR_TYPE_STORAGE_BUFFER
orVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
. -
maxPushConstantsSize
is the maximum size, in bytes, of the pool of push constant memory. For each of the push constant ranges indicated by thepPushConstantRanges
member of the VkPipelineLayoutCreateInfo structure, (offset
+size
) must be less than or equal to this limit. -
maxMemoryAllocationCount
is the maximum number of device memory allocations, as created by vkAllocateMemory, which can simultaneously exist. -
maxSamplerAllocationCount
is the maximum number of sampler objects, as created by vkCreateSampler, which can simultaneously exist on a device. -
bufferImageGranularity
is the granularity, in bytes, at which buffer or linear image resources, and optimal image resources can be bound to adjacent offsets in the sameVkDeviceMemory
object without aliasing. See Buffer-Image Granularity for more details. -
sparseAddressSpaceSize
is the total amount of address space available, in bytes, for sparse memory resources. This is an upper bound on the sum of the size of all sparse resources, regardless of whether any memory is bound to them. -
maxBoundDescriptorSets
is the maximum number of descriptor sets that can be simultaneously used by a pipeline. AllDescriptorSet
decorations in shader modules must have a value less thanmaxBoundDescriptorSets
. See Descriptor Sets. -
maxPerStageDescriptorSamplers
is the maximum number of samplers that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_SAMPLER
orVK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. See Sampler and Combined Image Sampler. -
maxPerStageDescriptorUniformBuffers
is the maximum number of uniform buffers that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
orVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. See Uniform Buffer and Dynamic Uniform Buffer. -
maxPerStageDescriptorStorageBuffers
is the maximum number of storage buffers that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_STORAGE_BUFFER
orVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a pipeline shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. See Storage Buffer and Dynamic Storage Buffer. -
maxPerStageDescriptorSampledImages
is the maximum number of sampled images that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
,VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE
, orVK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a pipeline shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. See Combined Image Sampler, Sampled Image, and Uniform Texel Buffer. -
maxPerStageDescriptorStorageImages
is the maximum number of storage images that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_STORAGE_IMAGE
, orVK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a pipeline shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. See Storage Image, and Storage Texel Buffer. -
maxPerStageDescriptorInputAttachments
is the maximum number of input attachments that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. A descriptor is accessible to a pipeline shader stage when thestageFlags
member of theVkDescriptorSetLayoutBinding
structure has the bit for that shader stage set. These are only supported for the fragment stage. See Input Attachment. -
maxPerStageResources
is the maximum number of resources that can be accessible to a single shader stage in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
,VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE
,VK_DESCRIPTOR_TYPE_STORAGE_IMAGE
,VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
,VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
,VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
,VK_DESCRIPTOR_TYPE_STORAGE_BUFFER
,VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
,VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
, orVK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. For the fragment shader stage the framebuffer color attachments also count against this limit. -
maxDescriptorSetSamplers
is the maximum number of samplers that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_SAMPLER
orVK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Sampler and Combined Image Sampler. -
maxDescriptorSetUniformBuffers
is the maximum number of uniform buffers that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
orVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Uniform Buffer and Dynamic Uniform Buffer. -
maxDescriptorSetUniformBuffersDynamic
is the maximum number of dynamic uniform buffers that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Dynamic Uniform Buffer. -
maxDescriptorSetStorageBuffers
is the maximum number of storage buffers that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_STORAGE_BUFFER
orVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Storage Buffer and Dynamic Storage Buffer. -
maxDescriptorSetStorageBuffersDynamic
is the maximum number of dynamic storage buffers that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Dynamic Storage Buffer. -
maxDescriptorSetSampledImages
is the maximum number of sampled images that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER
,VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE
, orVK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Combined Image Sampler, Sampled Image, and Uniform Texel Buffer. -
maxDescriptorSetStorageImages
is the maximum number of storage images that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_STORAGE_IMAGE
, orVK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Storage Image, and Storage Texel Buffer. -
maxDescriptorSetInputAttachments
is the maximum number of input attachments that can be included in a pipeline layout. Descriptors with a type ofVK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT
count against this limit. Only descriptors in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. See Input Attachment. -
maxVertexInputAttributes
is the maximum number of vertex input attributes that can be specified for a graphics pipeline. These are described in the array ofVkVertexInputAttributeDescription
structures that are provided at graphics pipeline creation time via thepVertexAttributeDescriptions
member of the VkPipelineVertexInputStateCreateInfo structure. See Vertex Attributes and Vertex Input Description. -
maxVertexInputBindings
is the maximum number of vertex buffers that can be specified for providing vertex attributes to a graphics pipeline. These are described in the array ofVkVertexInputBindingDescription
structures that are provided at graphics pipeline creation time via thepVertexBindingDescriptions
member of the VkPipelineVertexInputStateCreateInfo structure. Thebinding
member ofVkVertexInputBindingDescription
must be less than this limit. See Vertex Input Description. -
maxVertexInputAttributeOffset
is the maximum vertex input attribute offset that can be added to the vertex input binding stride. Theoffset
member of theVkVertexInputAttributeDescription
structure must be less than or equal to this limit. See Vertex Input Description. -
maxVertexInputBindingStride
is the maximum vertex input binding stride that can be specified in a vertex input binding. Thestride
member of theVkVertexInputBindingDescription
structure must be less than or equal to this limit. See Vertex Input Description. -
maxVertexOutputComponents
is the maximum number of components of output variables which can be output by a vertex shader. See Vertex Shaders. -
maxTessellationGenerationLevel
is the maximum tessellation generation level supported by the fixed-function tessellation primitive generator. See Tessellation. -
maxTessellationPatchSize
is the maximum patch size, in vertices, of patches that can be processed by the tessellation control shader and tessellation primitive generator. ThepatchControlPoints
member of the VkPipelineTessellationStateCreateInfo structure specified at pipeline creation time and the value provided in theOutputVertices
execution mode of shader modules must be less than or equal to this limit. See Tessellation. -
maxTessellationControlPerVertexInputComponents
is the maximum number of components of input variables which can be provided as per-vertex inputs to the tessellation control shader stage. -
maxTessellationControlPerVertexOutputComponents
is the maximum number of components of per-vertex output variables which can be output from the tessellation control shader stage. -
maxTessellationControlPerPatchOutputComponents
is the maximum number of components of per-patch output variables which can be output from the tessellation control shader stage. -
maxTessellationControlTotalOutputComponents
is the maximum total number of components of per-vertex and per-patch output variables which can be output from the tessellation control shader stage. -
maxTessellationEvaluationInputComponents
is the maximum number of components of input variables which can be provided as per-vertex inputs to the tessellation evaluation shader stage. -
maxTessellationEvaluationOutputComponents
is the maximum number of components of per-vertex output variables which can be output from the tessellation evaluation shader stage. -
maxGeometryShaderInvocations
is the maximum invocation count supported for instanced geometry shaders. The value provided in theInvocations
execution mode of shader modules must be less than or equal to this limit. See Geometry Shading. -
maxGeometryInputComponents
is the maximum number of components of input variables which can be provided as inputs to the geometry shader stage. -
maxGeometryOutputComponents
is the maximum number of components of output variables which can be output from the geometry shader stage. -
maxGeometryOutputVertices
is the maximum number of vertices which can be emitted by any geometry shader. -
maxGeometryTotalOutputComponents
is the maximum total number of components of output, across all emitted vertices, which can be output from the geometry shader stage. -
maxFragmentInputComponents
is the maximum number of components of input variables which can be provided as inputs to the fragment shader stage. -
maxFragmentOutputAttachments
is the maximum number of output attachments which can be written to by the fragment shader stage. -
maxFragmentDualSrcAttachments
is the maximum number of output attachments which can be written to by the fragment shader stage when blending is enabled and one of the dual source blend modes is in use. See Dual-Source Blending and dualSrcBlend. -
maxFragmentCombinedOutputResources
is the total number of storage buffers, storage images, and outputLocation
decorated color attachments (described in Fragment Output Interface) which can be used in the fragment shader stage. -
maxComputeSharedMemorySize
is the maximum total storage size, in bytes, available for variables declared with theWorkgroup
storage class in shader modules (or with theshared
storage qualifier in GLSL) in the compute shader stage. The amount of storage consumed by the variables declared with theWorkgroup
storage class is implementation-dependent. However, the amount of storage consumed may not exceed the largest block size that would be obtained if all active variables declared withWorkgroup
storage class were assigned offsets in an arbitrary order by successively taking the smallest valid offset according to the Standard Storage Buffer Layout rules. (This is equivalent to using the GLSL std430 layout rules.) -
maxComputeWorkGroupCount
[3] is the maximum number of local workgroups that can be dispatched by a single dispatch command. These three values represent the maximum number of local workgroups for the X, Y, and Z dimensions, respectively. The workgroup count parameters to the dispatch commands must be less than or equal to the corresponding limit. See Dispatching Commands. -
maxComputeWorkGroupInvocations
is the maximum total number of compute shader invocations in a single local workgroup. The product of the X, Y, and Z sizes, as specified by theLocalSize
execution mode in shader modules or by the object decorated by theWorkgroupSize
decoration, must be less than or equal to this limit. -
maxComputeWorkGroupSize
[3] is the maximum size of a local compute workgroup, per dimension. These three values represent the maximum local workgroup size in the X, Y, and Z dimensions, respectively. Thex
,y
, andz
sizes, as specified by theLocalSize
execution mode or by the object decorated by theWorkgroupSize
decoration in shader modules, must be less than or equal to the corresponding limit. -
subPixelPrecisionBits
is the number of bits of subpixel precision in framebuffer coordinates xf and yf. See Rasterization. -
subTexelPrecisionBits
is the number of bits of precision in the division along an axis of an image used for minification and magnification filters. 2subTexelPrecisionBits
is the actual number of divisions along each axis of the image represented. Sub-texel values calculated during image sampling will snap to these locations when generating the filtered results. -
mipmapPrecisionBits
is the number of bits of division that the LOD calculation for mipmap fetching get snapped to when determining the contribution from each mip level to the mip filtered results. 2mipmapPrecisionBits
is the actual number of divisions. -
maxDrawIndexedIndexValue
is the maximum index value that can be used for indexed draw calls when using 32-bit indices. This excludes the primitive restart index value of 0xFFFFFFFF. See fullDrawIndexUint32. -
maxDrawIndirectCount
is the maximum draw count that is supported for indirect draw calls. See multiDrawIndirect. -
maxSamplerLodBias
is the maximum absolute sampler LOD bias. The sum of themipLodBias
member of the VkSamplerCreateInfo structure and theBias
operand of image sampling operations in shader modules (or 0 if noBias
operand is provided to an image sampling operation) are clamped to the range [-maxSamplerLodBias
,+maxSamplerLodBias
]. See [samplers-mipLodBias]. -
maxSamplerAnisotropy
is the maximum degree of sampler anisotropy. The maximum degree of anisotropic filtering used for an image sampling operation is the minimum of themaxAnisotropy
member of the VkSamplerCreateInfo structure and this limit. See [samplers-maxAnisotropy]. -
maxViewports
is the maximum number of active viewports. TheviewportCount
member of the VkPipelineViewportStateCreateInfo structure that is provided at pipeline creation must be less than or equal to this limit. -
maxViewportDimensions
[2] are the maximum viewport dimensions in the X (width) and Y (height) dimensions, respectively. The maximum viewport dimensions must be greater than or equal to the largest image which can be created and used as a framebuffer attachment. See Controlling the Viewport. -
viewportBoundsRange
[2] is the [minimum, maximum] range that the corners of a viewport must be contained in. This range must be at least [-2 ×size
, 2 ×size
- 1], wheresize
= max(maxViewportDimensions
[0],maxViewportDimensions
[1]). See Controlling the Viewport.NoteThe intent of the
viewportBoundsRange
limit is to allow a maximum sized viewport to be arbitrarily shifted relative to the output target as long as at least some portion intersects. This would give a bounds limit of [-size
+ 1, 2 ×size
- 1] which would allow all possible non-empty-set intersections of the output target and the viewport. Since these numbers are typically powers of two, picking the signed number range using the smallest possible number of bits ends up with the specified range. -
viewportSubPixelBits
is the number of bits of subpixel precision for viewport bounds. The subpixel precision that floating-point viewport bounds are interpreted at is given by this limit. -
minMemoryMapAlignment
is the minimum required alignment, in bytes, of host visible memory allocations within the host address space. When mapping a memory allocation with vkMapMemory, subtractingoffset
bytes from the returned pointer will always produce an integer multiple of this limit. See Host Access to Device Memory Objects. -
minTexelBufferOffsetAlignment
is the minimum required alignment, in bytes, for theoffset
member of the VkBufferViewCreateInfo structure for texel buffers. If texelBufferAlignment is enabled, this limit is equivalent to the maximum of theuniformTexelBufferOffsetAlignmentBytes
andstorageTexelBufferOffsetAlignmentBytes
members of VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT, but smaller alignment is optionally: allowed bystorageTexelBufferOffsetSingleTexelAlignment
anduniformTexelBufferOffsetSingleTexelAlignment
. If texelBufferAlignment is not enabled, VkBufferViewCreateInfo::offset
must be a multiple of this value. -
minUniformBufferOffsetAlignment
is the minimum required alignment, in bytes, for theoffset
member of theVkDescriptorBufferInfo
structure for uniform buffers. When a descriptor of typeVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER
orVK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC
is updated, theoffset
must be an integer multiple of this limit. Similarly, dynamic offsets for uniform buffers must be multiples of this limit. -
minStorageBufferOffsetAlignment
is the minimum required alignment, in bytes, for theoffset
member of theVkDescriptorBufferInfo
structure for storage buffers. When a descriptor of typeVK_DESCRIPTOR_TYPE_STORAGE_BUFFER
orVK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC
is updated, theoffset
must be an integer multiple of this limit. Similarly, dynamic offsets for storage buffers must be multiples of this limit. -
minTexelOffset
is the minimum offset value for theConstOffset
image operand of any of theOpImageSample
* orOpImageFetch
* image instructions. -
maxTexelOffset
is the maximum offset value for theConstOffset
image operand of any of theOpImageSample
* orOpImageFetch
* image instructions. -
minTexelGatherOffset
is the minimum offset value for theOffset
,ConstOffset
, orConstOffsets
image operands of any of theOpImage
*Gather
image instructions. -
maxTexelGatherOffset
is the maximum offset value for theOffset
,ConstOffset
, orConstOffsets
image operands of any of theOpImage
*Gather
image instructions. -
minInterpolationOffset
is the minimum negative offset value for theoffset
operand of theInterpolateAtOffset
extended instruction. -
maxInterpolationOffset
is the maximum positive offset value for theoffset
operand of theInterpolateAtOffset
extended instruction. -
subPixelInterpolationOffsetBits
is the number of subpixel fractional bits that thex
andy
offsets to theInterpolateAtOffset
extended instruction may be rounded to as fixed-point values. -
maxFramebufferWidth
is the maximum width for a framebuffer. Thewidth
member of the VkFramebufferCreateInfo structure must be less than or equal to this limit. -
maxFramebufferHeight
is the maximum height for a framebuffer. Theheight
member of the VkFramebufferCreateInfo structure must be less than or equal to this limit. -
maxFramebufferLayers
is the maximum layer count for a layered framebuffer. Thelayers
member of the VkFramebufferCreateInfo structure must be less than or equal to this limit. -
framebufferColorSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the color sample counts that are supported for all framebuffer color attachments with floating- or fixed-point formats. There is no limit that specifies the color sample counts that are supported for all color attachments with integer formats. -
framebufferDepthSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the supported depth sample counts for all framebuffer depth/stencil attachments, when the format includes a depth component. -
framebufferStencilSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the supported stencil sample counts for all framebuffer depth/stencil attachments, when the format includes a stencil component. -
framebufferNoAttachmentsSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the supported sample counts for a subpass which uses no attachments. -
maxColorAttachments
is the maximum number of color attachments that can be used by a subpass in a render pass. ThecolorAttachmentCount
member of theVkSubpassDescription
structure must be less than or equal to this limit. -
sampledImageColorSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the sample counts supported for all 2D images created withVK_IMAGE_TILING_OPTIMAL
,usage
containingVK_IMAGE_USAGE_SAMPLED_BIT
, and a non-integer color format. -
sampledImageIntegerSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the sample counts supported for all 2D images created withVK_IMAGE_TILING_OPTIMAL
,usage
containingVK_IMAGE_USAGE_SAMPLED_BIT
, and an integer color format. -
sampledImageDepthSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the sample counts supported for all 2D images created withVK_IMAGE_TILING_OPTIMAL
,usage
containingVK_IMAGE_USAGE_SAMPLED_BIT
, and a depth format. -
sampledImageStencilSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the sample supported for all 2D images created withVK_IMAGE_TILING_OPTIMAL
,usage
containingVK_IMAGE_USAGE_SAMPLED_BIT
, and a stencil format. -
storageImageSampleCounts
is a bitmask1 of VkSampleCountFlagBits indicating the sample counts supported for all 2D images created withVK_IMAGE_TILING_OPTIMAL
, andusage
containingVK_IMAGE_USAGE_STORAGE_BIT
. -
maxSampleMaskWords
is the maximum number of array elements of a variable decorated with theSampleMask
built-in decoration. -
timestampComputeAndGraphics
specifies support for timestamps on all graphics and compute queues. If this limit is set toVK_TRUE
, all queues that advertise theVK_QUEUE_GRAPHICS_BIT
orVK_QUEUE_COMPUTE_BIT
in theVkQueueFamilyProperties
::queueFlags
supportVkQueueFamilyProperties
::timestampValidBits
of at least 36. See Timestamp Queries. -
timestampPeriod
is the number of nanoseconds required for a timestamp query to be incremented by 1. See Timestamp Queries. -
maxClipDistances
is the maximum number of clip distances that can be used in a single shader stage. The size of any array declared with theClipDistance
built-in decoration in a shader module must be less than or equal to this limit. -
maxCullDistances
is the maximum number of cull distances that can be used in a single shader stage. The size of any array declared with theCullDistance
built-in decoration in a shader module must be less than or equal to this limit. -
maxCombinedClipAndCullDistances
is the maximum combined number of clip and cull distances that can be used in a single shader stage. The sum of the sizes of any pair of arrays declared with theClipDistance
andCullDistance
built-in decoration used by a single shader stage in a shader module must be less than or equal to this limit. -
discreteQueuePriorities
is the number of discrete priorities that can be assigned to a queue based on the value of each member of VkDeviceQueueCreateInfo::pQueuePriorities
. This must be at least 2, and levels must be spread evenly over the range, with at least one level at 1.0, and another at 0.0. See Queue Priority. -
pointSizeRange
[2] is the range [minimum
,maximum
] of supported sizes for points. Values written to variables decorated with thePointSize
built-in decoration are clamped to this range. -
lineWidthRange
[2] is the range [minimum
,maximum
] of supported widths for lines. Values specified by thelineWidth
member of the VkPipelineRasterizationStateCreateInfo or thelineWidth
parameter tovkCmdSetLineWidth
are clamped to this range. -
pointSizeGranularity
is the granularity of supported point sizes. Not all point sizes in the range defined bypointSizeRange
are supported. This limit specifies the granularity (or increment) between successive supported point sizes. -
lineWidthGranularity
is the granularity of supported line widths. Not all line widths in the range defined bylineWidthRange
are supported. This limit specifies the granularity (or increment) between successive supported line widths. -
strictLines
specifies whether lines are rasterized according to the preferred method of rasterization. If set toVK_FALSE
, lines may be rasterized under a relaxed set of rules. If set toVK_TRUE
, lines are rasterized as per the strict definition. See Basic Line Segment Rasterization. -
standardSampleLocations
specifies whether rasterization uses the standard sample locations as documented in Multisampling. If set toVK_TRUE
, the implementation uses the documented sample locations. If set toVK_FALSE
, the implementation may use different sample locations. -
optimalBufferCopyOffsetAlignment
is the optimal buffer offset alignment in bytes forvkCmdCopyBufferToImage
andvkCmdCopyImageToBuffer
. The per texel alignment requirements are enforced, but applications should use the optimal alignment for optimal performance and power use. -
optimalBufferCopyRowPitchAlignment
is the optimal buffer row pitch alignment in bytes forvkCmdCopyBufferToImage
andvkCmdCopyImageToBuffer
. Row pitch is the number of bytes between texels with the same X coordinate in adjacent rows (Y coordinates differ by one). The per texel alignment requirements are enforced, but applications should use the optimal alignment for optimal performance and power use. -
nonCoherentAtomSize
is the size and alignment in bytes that bounds concurrent access to host-mapped device memory.
- 1
-
For all bitmasks of VkSampleCountFlagBits, the sample count limits defined above represent the minimum supported sample counts for each image type. Individual images may support additional sample counts, which are queried using vkGetPhysicalDeviceImageFormatProperties as described in Supported Sample Counts.
Bits which may be set in the sample count limits returned by VkPhysicalDeviceLimits, as well as in other queries and structures representing image sample counts, are:
// Provided by VK_VERSION_1_0
typedef enum VkSampleCountFlagBits {
VK_SAMPLE_COUNT_1_BIT = 0x00000001,
VK_SAMPLE_COUNT_2_BIT = 0x00000002,
VK_SAMPLE_COUNT_4_BIT = 0x00000004,
VK_SAMPLE_COUNT_8_BIT = 0x00000008,
VK_SAMPLE_COUNT_16_BIT = 0x00000010,
VK_SAMPLE_COUNT_32_BIT = 0x00000020,
VK_SAMPLE_COUNT_64_BIT = 0x00000040,
} VkSampleCountFlagBits;
-
VK_SAMPLE_COUNT_1_BIT
specifies an image with one sample per pixel. -
VK_SAMPLE_COUNT_2_BIT
specifies an image with 2 samples per pixel. -
VK_SAMPLE_COUNT_4_BIT
specifies an image with 4 samples per pixel. -
VK_SAMPLE_COUNT_8_BIT
specifies an image with 8 samples per pixel. -
VK_SAMPLE_COUNT_16_BIT
specifies an image with 16 samples per pixel. -
VK_SAMPLE_COUNT_32_BIT
specifies an image with 32 samples per pixel. -
VK_SAMPLE_COUNT_64_BIT
specifies an image with 64 samples per pixel.
// Provided by VK_VERSION_1_0
typedef VkFlags VkSampleCountFlags;
VkSampleCountFlags
is a bitmask type for setting a mask of zero or
more VkSampleCountFlagBits.
The VkPhysicalDevicePushDescriptorPropertiesKHR
structure is defined
as:
// Provided by VK_KHR_push_descriptor
typedef struct VkPhysicalDevicePushDescriptorPropertiesKHR {
VkStructureType sType;
void* pNext;
uint32_t maxPushDescriptors;
} VkPhysicalDevicePushDescriptorPropertiesKHR;
The members of the VkPhysicalDevicePushDescriptorPropertiesKHR
structure describe the following implementation-dependent limits:
If the VkPhysicalDevicePushDescriptorPropertiesKHR
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceMultiviewProperties
structure is defined as:
// Provided by VK_VERSION_1_1
typedef struct VkPhysicalDeviceMultiviewProperties {
VkStructureType sType;
void* pNext;
uint32_t maxMultiviewViewCount;
uint32_t maxMultiviewInstanceIndex;
} VkPhysicalDeviceMultiviewProperties;
or the equivalent
// Provided by VK_KHR_multiview
typedef VkPhysicalDeviceMultiviewProperties VkPhysicalDeviceMultiviewPropertiesKHR;
The members of the VkPhysicalDeviceMultiviewProperties
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
If the VkPhysicalDeviceMultiviewProperties
structure is included in
the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceFloatControlsProperties
structure is defined as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceFloatControlsProperties {
VkStructureType sType;
void* pNext;
VkShaderFloatControlsIndependence denormBehaviorIndependence;
VkShaderFloatControlsIndependence roundingModeIndependence;
VkBool32 shaderSignedZeroInfNanPreserveFloat16;
VkBool32 shaderSignedZeroInfNanPreserveFloat32;
VkBool32 shaderSignedZeroInfNanPreserveFloat64;
VkBool32 shaderDenormPreserveFloat16;
VkBool32 shaderDenormPreserveFloat32;
VkBool32 shaderDenormPreserveFloat64;
VkBool32 shaderDenormFlushToZeroFloat16;
VkBool32 shaderDenormFlushToZeroFloat32;
VkBool32 shaderDenormFlushToZeroFloat64;
VkBool32 shaderRoundingModeRTEFloat16;
VkBool32 shaderRoundingModeRTEFloat32;
VkBool32 shaderRoundingModeRTEFloat64;
VkBool32 shaderRoundingModeRTZFloat16;
VkBool32 shaderRoundingModeRTZFloat32;
VkBool32 shaderRoundingModeRTZFloat64;
} VkPhysicalDeviceFloatControlsProperties;
or the equivalent
// Provided by VK_KHR_shader_float_controls
typedef VkPhysicalDeviceFloatControlsProperties VkPhysicalDeviceFloatControlsPropertiesKHR;
The members of the VkPhysicalDeviceFloatControlsProperties
structure
describe the following implementation-dependent limits:
-
denormBehaviorIndependence
is a VkShaderFloatControlsIndependence value indicating whether, and how, denorm behavior can be set independently for different bit widths. -
roundingModeIndependence
is a VkShaderFloatControlsIndependence value indicating whether, and how, rounding modes can be set independently for different bit widths. -
shaderSignedZeroInfNanPreserveFloat16
is a boolean value indicating whether sign of a zero, Nans and can be preserved in 16-bit floating-point computations. It also indicates whether theSignedZeroInfNanPreserve
execution mode can be used for 16-bit floating-point types. -
shaderSignedZeroInfNanPreserveFloat32
is a boolean value indicating whether sign of a zero, Nans and can be preserved in 32-bit floating-point computations. It also indicates whether theSignedZeroInfNanPreserve
execution mode can be used for 32-bit floating-point types. -
shaderSignedZeroInfNanPreserveFloat64
is a boolean value indicating whether sign of a zero, Nans and can be preserved in 64-bit floating-point computations. It also indicates whether theSignedZeroInfNanPreserve
execution mode can be used for 64-bit floating-point types. -
shaderDenormPreserveFloat16
is a boolean value indicating whether denormals can be preserved in 16-bit floating-point computations. It also indicates whether theDenormPreserve
execution mode can be used for 16-bit floating-point types. -
shaderDenormPreserveFloat32
is a boolean value indicating whether denormals can be preserved in 32-bit floating-point computations. It also indicates whether theDenormPreserve
execution mode can be used for 32-bit floating-point types. -
shaderDenormPreserveFloat64
is a boolean value indicating whether denormals can be preserved in 64-bit floating-point computations. It also indicates whether theDenormPreserve
execution mode can be used for 64-bit floating-point types. -
shaderDenormFlushToZeroFloat16
is a boolean value indicating whether denormals can be flushed to zero in 16-bit floating-point computations. It also indicates whether theDenormFlushToZero
execution mode can be used for 16-bit floating-point types. -
shaderDenormFlushToZeroFloat32
is a boolean value indicating whether denormals can be flushed to zero in 32-bit floating-point computations. It also indicates whether theDenormFlushToZero
execution mode can be used for 32-bit floating-point types. -
shaderDenormFlushToZeroFloat64
is a boolean value indicating whether denormals can be flushed to zero in 64-bit floating-point computations. It also indicates whether theDenormFlushToZero
execution mode can be used for 64-bit floating-point types. -
shaderRoundingModeRTEFloat16
is a boolean value indicating whether an implementation supports the round-to-nearest-even rounding mode for 16-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTE
execution mode can be used for 16-bit floating-point types. -
shaderRoundingModeRTEFloat32
is a boolean value indicating whether an implementation supports the round-to-nearest-even rounding mode for 32-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTE
execution mode can be used for 32-bit floating-point types. -
shaderRoundingModeRTEFloat64
is a boolean value indicating whether an implementation supports the round-to-nearest-even rounding mode for 64-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTE
execution mode can be used for 64-bit floating-point types. -
shaderRoundingModeRTZFloat16
is a boolean value indicating whether an implementation supports the round-towards-zero rounding mode for 16-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTZ
execution mode can be used for 16-bit floating-point types. -
shaderRoundingModeRTZFloat32
is a boolean value indicating whether an implementation supports the round-towards-zero rounding mode for 32-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTZ
execution mode can be used for 32-bit floating-point types. -
shaderRoundingModeRTZFloat64
is a boolean value indicating whether an implementation supports the round-towards-zero rounding mode for 64-bit floating-point arithmetic and conversion instructions. It also indicates whether theRoundingModeRTZ
execution mode can be used for 64-bit floating-point types.
editing-note
Implementations may not be able to control behavior of denorms for floating-point atomics. This needs to be taken into account when such atomics will be added to Vulkan. |
If the VkPhysicalDeviceFloatControlsProperties
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
Values which may be returned in the denormBehaviorIndependence
and
roundingModeIndependence
fields of
VkPhysicalDeviceFloatControlsProperties are:
// Provided by VK_VERSION_1_2
typedef enum VkShaderFloatControlsIndependence {
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_32_BIT_ONLY = 0,
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL = 1,
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_NONE = 2,
// Provided by VK_KHR_shader_float_controls
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_32_BIT_ONLY_KHR = VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_32_BIT_ONLY,
// Provided by VK_KHR_shader_float_controls
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL_KHR = VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL,
// Provided by VK_KHR_shader_float_controls
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_NONE_KHR = VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_NONE,
} VkShaderFloatControlsIndependence;
or the equivalent
// Provided by VK_KHR_shader_float_controls
typedef VkShaderFloatControlsIndependence VkShaderFloatControlsIndependenceKHR;
-
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_32_BIT_ONLY
specifies that shader float controls for 32-bit floating point can be set independently; other bit widths must be set identically to each other. -
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_ALL
specifies that shader float controls for all bit widths can be set independently. -
VK_SHADER_FLOAT_CONTROLS_INDEPENDENCE_NONE
specifies that shader float controls for all bit widths must be set identically.
The VkPhysicalDeviceDiscardRectanglePropertiesEXT
structure is defined
as:
// Provided by VK_EXT_discard_rectangles
typedef struct VkPhysicalDeviceDiscardRectanglePropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t maxDiscardRectangles;
} VkPhysicalDeviceDiscardRectanglePropertiesEXT;
The members of the VkPhysicalDeviceDiscardRectanglePropertiesEXT
structure describe the following implementation-dependent limits:
If the VkPhysicalDeviceDiscardRectanglePropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceSampleLocationsPropertiesEXT
structure is defined
as:
// Provided by VK_EXT_sample_locations
typedef struct VkPhysicalDeviceSampleLocationsPropertiesEXT {
VkStructureType sType;
void* pNext;
VkSampleCountFlags sampleLocationSampleCounts;
VkExtent2D maxSampleLocationGridSize;
float sampleLocationCoordinateRange[2];
uint32_t sampleLocationSubPixelBits;
VkBool32 variableSampleLocations;
} VkPhysicalDeviceSampleLocationsPropertiesEXT;
The members of the VkPhysicalDeviceSampleLocationsPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
sampleLocationSampleCounts
is a bitmask of VkSampleCountFlagBits indicating the sample counts supporting custom sample locations. -
maxSampleLocationGridSize
is the maximum size of the pixel grid in which sample locations can vary that is supported for all sample counts insampleLocationSampleCounts
. -
sampleLocationCoordinateRange
[2] is the range of supported sample location coordinates. -
sampleLocationSubPixelBits
is the number of bits of subpixel precision for sample locations. -
variableSampleLocations
specifies whether the sample locations used by all pipelines that will be bound to a command buffer during a subpass must match. If set toVK_TRUE
, the implementation supports variable sample locations in a subpass. If set toVK_FALSE
, then the sample locations must stay constant in each subpass.
If the VkPhysicalDeviceSampleLocationsPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceExternalMemoryHostPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_external_memory_host
typedef struct VkPhysicalDeviceExternalMemoryHostPropertiesEXT {
VkStructureType sType;
void* pNext;
VkDeviceSize minImportedHostPointerAlignment;
} VkPhysicalDeviceExternalMemoryHostPropertiesEXT;
The members of the VkPhysicalDeviceExternalMemoryHostPropertiesEXT
structure describe the following implementation-dependent limits:
If the VkPhysicalDeviceExternalMemoryHostPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceMultiviewPerViewAttributesPropertiesNVX
structure
is defined as:
// Provided by VK_NVX_multiview_per_view_attributes
typedef struct VkPhysicalDeviceMultiviewPerViewAttributesPropertiesNVX {
VkStructureType sType;
void* pNext;
VkBool32 perViewPositionAllComponents;
} VkPhysicalDeviceMultiviewPerViewAttributesPropertiesNVX;
The members of the
VkPhysicalDeviceMultiviewPerViewAttributesPropertiesNVX
structure
describe the following implementation-dependent limits:
If the VkPhysicalDeviceMultiviewPerViewAttributesPropertiesNVX
structure is included in the pNext
chain of
VkPhysicalDeviceProperties2, it is filled with the
implementation-dependent limits.
The VkPhysicalDevicePointClippingProperties
structure is defined as:
// Provided by VK_VERSION_1_1
typedef struct VkPhysicalDevicePointClippingProperties {
VkStructureType sType;
void* pNext;
VkPointClippingBehavior pointClippingBehavior;
} VkPhysicalDevicePointClippingProperties;
or the equivalent
// Provided by VK_KHR_maintenance2
typedef VkPhysicalDevicePointClippingProperties VkPhysicalDevicePointClippingPropertiesKHR;
The members of the VkPhysicalDevicePointClippingProperties
structure
describe the following implementation-dependent limit:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
pointClippingBehavior
is a VkPointClippingBehavior value specifying the point clipping behavior supported by the implementation.
If the VkPhysicalDevicePointClippingProperties
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceSubgroupProperties
structure is defined as:
// Provided by VK_VERSION_1_1
typedef struct VkPhysicalDeviceSubgroupProperties {
VkStructureType sType;
void* pNext;
uint32_t subgroupSize;
VkShaderStageFlags supportedStages;
VkSubgroupFeatureFlags supportedOperations;
VkBool32 quadOperationsInAllStages;
} VkPhysicalDeviceSubgroupProperties;
The members of the VkPhysicalDeviceSubgroupProperties
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
subgroupSize
is the default number of invocations in each subgroup.subgroupSize
is at least 1 if any of the physical device’s queues supportVK_QUEUE_GRAPHICS_BIT
orVK_QUEUE_COMPUTE_BIT
.subgroupSize
is a power-of-two. -
supportedStages
is a bitfield of VkShaderStageFlagBits describing the shader stages that group operations with subgroup scope are supported in.supportedStages
will have theVK_SHADER_STAGE_COMPUTE_BIT
bit set if any of the physical device’s queues supportVK_QUEUE_COMPUTE_BIT
. -
supportedOperations
is a bitmask of VkSubgroupFeatureFlagBits specifying the sets of group operations with subgroup scope supported on this device.supportedOperations
will have theVK_SUBGROUP_FEATURE_BASIC_BIT
bit set if any of the physical device’s queues supportVK_QUEUE_GRAPHICS_BIT
orVK_QUEUE_COMPUTE_BIT
. -
quadOperationsInAllStages
is a boolean specifying whether quad group operations are available in all stages, or are restricted to fragment and compute stages.
If the VkPhysicalDeviceSubgroupProperties
structure is included in the
pNext
chain of VkPhysicalDeviceProperties2, it is filled with
the implementation-dependent limits.
If supportedOperations
includes VK_SUBGROUP_FEATURE_QUAD_BIT
, subgroupSize
must be greater
than or equal to 4.
Bits which can be set in
VkPhysicalDeviceSubgroupProperties::supportedOperations
and
VkPhysicalDeviceVulkan11Properties::subgroupSupportedOperations
to specify supported group operations with
subgroup scope are:
// Provided by VK_VERSION_1_1
typedef enum VkSubgroupFeatureFlagBits {
VK_SUBGROUP_FEATURE_BASIC_BIT = 0x00000001,
VK_SUBGROUP_FEATURE_VOTE_BIT = 0x00000002,
VK_SUBGROUP_FEATURE_ARITHMETIC_BIT = 0x00000004,
VK_SUBGROUP_FEATURE_BALLOT_BIT = 0x00000008,
VK_SUBGROUP_FEATURE_SHUFFLE_BIT = 0x00000010,
VK_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT = 0x00000020,
VK_SUBGROUP_FEATURE_CLUSTERED_BIT = 0x00000040,
VK_SUBGROUP_FEATURE_QUAD_BIT = 0x00000080,
// Provided by VK_NV_shader_subgroup_partitioned
VK_SUBGROUP_FEATURE_PARTITIONED_BIT_NV = 0x00000100,
} VkSubgroupFeatureFlagBits;
-
VK_SUBGROUP_FEATURE_BASIC_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniform
capability. -
VK_SUBGROUP_FEATURE_VOTE_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformVote
capability. -
VK_SUBGROUP_FEATURE_ARITHMETIC_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformArithmetic
capability. -
VK_SUBGROUP_FEATURE_BALLOT_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformBallot
capability. -
VK_SUBGROUP_FEATURE_SHUFFLE_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformShuffle
capability. -
VK_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformShuffleRelative
capability. -
VK_SUBGROUP_FEATURE_CLUSTERED_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformClustered
capability. -
VK_SUBGROUP_FEATURE_QUAD_BIT
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformQuad
capability. -
VK_SUBGROUP_FEATURE_PARTITIONED_BIT_NV
specifies the device will accept SPIR-V shader modules containing theGroupNonUniformPartitionedNV
capability.
// Provided by VK_VERSION_1_1
typedef VkFlags VkSubgroupFeatureFlags;
VkSubgroupFeatureFlags
is a bitmask type for setting a mask of zero or
more VkSubgroupFeatureFlagBits.
The VkPhysicalDeviceSubgroupSizeControlPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_subgroup_size_control
typedef struct VkPhysicalDeviceSubgroupSizeControlPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t minSubgroupSize;
uint32_t maxSubgroupSize;
uint32_t maxComputeWorkgroupSubgroups;
VkShaderStageFlags requiredSubgroupSizeStages;
} VkPhysicalDeviceSubgroupSizeControlPropertiesEXT;
The members of the VkPhysicalDeviceSubgroupSizeControlPropertiesEXT
structure describe the following properties:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
minSubgroupSize
is the minimum subgroup size supported by this device.minSubgroupSize
is at least one if any of the physical device’s queues supportVK_QUEUE_GRAPHICS_BIT
orVK_QUEUE_COMPUTE_BIT
.minSubgroupSize
is a power-of-two.minSubgroupSize
is less than or equal tomaxSubgroupSize
.minSubgroupSize
is less than or equal to subgroupSize. -
maxSubgroupSize
is the maximum subgroup size supported by this device.maxSubgroupSize
is at least one if any of the physical device’s queues supportVK_QUEUE_GRAPHICS_BIT
orVK_QUEUE_COMPUTE_BIT
.maxSubgroupSize
is a power-of-two.maxSubgroupSize
is greater than or equal tominSubgroupSize
.maxSubgroupSize
is greater than or equal to subgroupSize. -
maxComputeWorkgroupSubgroups
is the maximum number of subgroups supported by the implementation within a workgroup. -
requiredSubgroupSizeStages
is a bitfield of what shader stages support having a required subgroup size specified.
If the VkPhysicalDeviceSubgroupSizeControlPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
If VkPhysicalDeviceSubgroupProperties::supportedOperations
includes VK_SUBGROUP_FEATURE_QUAD_BIT
,
minSubgroupSize
must be greater than or equal to 4.
The VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_blend_operation_advanced
typedef struct VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t advancedBlendMaxColorAttachments;
VkBool32 advancedBlendIndependentBlend;
VkBool32 advancedBlendNonPremultipliedSrcColor;
VkBool32 advancedBlendNonPremultipliedDstColor;
VkBool32 advancedBlendCorrelatedOverlap;
VkBool32 advancedBlendAllOperations;
} VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT;
The members of the VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
advancedBlendMaxColorAttachments
is one greater than the highest color attachment index that can be used in a subpass, for a pipeline that uses an advanced blend operation. -
advancedBlendIndependentBlend
specifies whether advanced blend operations can vary per-attachment. -
advancedBlendNonPremultipliedSrcColor
specifies whether the source color can be treated as non-premultiplied. If this isVK_FALSE
, then VkPipelineColorBlendAdvancedStateCreateInfoEXT::srcPremultiplied
must beVK_TRUE
. -
advancedBlendNonPremultipliedDstColor
specifies whether the destination color can be treated as non-premultiplied. If this isVK_FALSE
, then VkPipelineColorBlendAdvancedStateCreateInfoEXT::dstPremultiplied
must beVK_TRUE
. -
advancedBlendCorrelatedOverlap
specifies whether the overlap mode can be treated as correlated. If this isVK_FALSE
, then VkPipelineColorBlendAdvancedStateCreateInfoEXT::blendOverlap
must beVK_BLEND_OVERLAP_UNCORRELATED_EXT
. -
advancedBlendAllOperations
specifies whether all advanced blend operation enums are supported. See the valid usage of VkPipelineColorBlendAttachmentState.
If the VkPhysicalDeviceBlendOperationAdvancedPropertiesEXT
structure
is included in the pNext
chain of VkPhysicalDeviceProperties2,
it is filled with the implementation-dependent limits.
The VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_vertex_attribute_divisor
typedef struct VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t maxVertexAttribDivisor;
} VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT;
The members of the VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT
structure describe the following implementation-dependent limits:
If the VkPhysicalDeviceVertexAttributeDivisorPropertiesEXT
structure
is included in the pNext
chain of VkPhysicalDeviceProperties2,
it is filled with the implementation-dependent limits.
The VkPhysicalDeviceSamplerFilterMinmaxProperties
structure is defined
as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceSamplerFilterMinmaxProperties {
VkStructureType sType;
void* pNext;
VkBool32 filterMinmaxSingleComponentFormats;
VkBool32 filterMinmaxImageComponentMapping;
} VkPhysicalDeviceSamplerFilterMinmaxProperties;
or the equivalent
// Provided by VK_EXT_sampler_filter_minmax
typedef VkPhysicalDeviceSamplerFilterMinmaxProperties VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT;
The members of the VkPhysicalDeviceSamplerFilterMinmaxProperties
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
filterMinmaxSingleComponentFormats
is a boolean value indicating whether a minimum set of required formats support min/max filtering. -
filterMinmaxImageComponentMapping
is a boolean value indicating whether the implementation supports non-identity component mapping of the image when doing min/max filtering.
If the VkPhysicalDeviceSamplerFilterMinmaxProperties
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
If filterMinmaxSingleComponentFormats
is VK_TRUE
, the following
formats must support the
VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT
feature with
VK_IMAGE_TILING_OPTIMAL
, if they support
VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT
.
-
VK_FORMAT_R8_UNORM
-
VK_FORMAT_R8_SNORM
-
VK_FORMAT_R16_UNORM
-
VK_FORMAT_R16_SNORM
-
VK_FORMAT_R16_SFLOAT
-
VK_FORMAT_R32_SFLOAT
-
VK_FORMAT_D16_UNORM
-
VK_FORMAT_X8_D24_UNORM_PACK32
-
VK_FORMAT_D32_SFLOAT
-
VK_FORMAT_D16_UNORM_S8_UINT
-
VK_FORMAT_D24_UNORM_S8_UINT
-
VK_FORMAT_D32_SFLOAT_S8_UINT
If the format is a depth/stencil format, this bit only specifies that the depth aspect (not the stencil aspect) of an image of this format supports min/max filtering, and that min/max filtering of the depth aspect is supported when depth compare is disabled in the sampler.
If filterMinmaxImageComponentMapping
is VK_FALSE
the component
mapping of the image view used with min/max filtering must have been
created with the r
component set to the
identity swizzle.
Only the r
component of the sampled image value is defined and the
other component values are undefined.
If filterMinmaxImageComponentMapping
is VK_TRUE
this restriction
does not apply and image component mapping works as normal.
The VkPhysicalDeviceProtectedMemoryProperties
structure is defined as:
// Provided by VK_VERSION_1_1
typedef struct VkPhysicalDeviceProtectedMemoryProperties {
VkStructureType sType;
void* pNext;
VkBool32 protectedNoFault;
} VkPhysicalDeviceProtectedMemoryProperties;
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
protectedNoFault
specifies the behavior of the implementation when protected memory access rules are broken. IfprotectedNoFault
isVK_TRUE
, breaking those rules will not result in process termination or device loss.
If the VkPhysicalDeviceProtectedMemoryProperties
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with a value indicating the implementation-dependent behavior.
The VkPhysicalDeviceMaintenance3Properties
structure is defined as:
// Provided by VK_VERSION_1_1
typedef struct VkPhysicalDeviceMaintenance3Properties {
VkStructureType sType;
void* pNext;
uint32_t maxPerSetDescriptors;
VkDeviceSize maxMemoryAllocationSize;
} VkPhysicalDeviceMaintenance3Properties;
or the equivalent
// Provided by VK_KHR_maintenance3
typedef VkPhysicalDeviceMaintenance3Properties VkPhysicalDeviceMaintenance3PropertiesKHR;
The members of the VkPhysicalDeviceMaintenance3Properties
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
maxPerSetDescriptors
is a maximum number of descriptors (summed over all descriptor types) in a single descriptor set that is guaranteed to satisfy any implementation-dependent constraints on the size of a descriptor set itself. Applications can query whether a descriptor set that goes beyond this limit is supported using vkGetDescriptorSetLayoutSupport. -
maxMemoryAllocationSize
is the maximum size of a memory allocation that can be created, even if there is more space available in the heap.
If the VkPhysicalDeviceMaintenance3Properties
structure is included in
the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceMeshShaderPropertiesNV
structure is defined as:
// Provided by VK_NV_mesh_shader
typedef struct VkPhysicalDeviceMeshShaderPropertiesNV {
VkStructureType sType;
void* pNext;
uint32_t maxDrawMeshTasksCount;
uint32_t maxTaskWorkGroupInvocations;
uint32_t maxTaskWorkGroupSize[3];
uint32_t maxTaskTotalMemorySize;
uint32_t maxTaskOutputCount;
uint32_t maxMeshWorkGroupInvocations;
uint32_t maxMeshWorkGroupSize[3];
uint32_t maxMeshTotalMemorySize;
uint32_t maxMeshOutputVertices;
uint32_t maxMeshOutputPrimitives;
uint32_t maxMeshMultiviewViewCount;
uint32_t meshOutputPerVertexGranularity;
uint32_t meshOutputPerPrimitiveGranularity;
} VkPhysicalDeviceMeshShaderPropertiesNV;
The members of the VkPhysicalDeviceMeshShaderPropertiesNV
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxDrawMeshTasksCount
is the maximum number of local workgroups that can be launched by a single draw mesh tasks command. See Programmable Mesh Shading. -
maxTaskWorkGroupInvocations
is the maximum total number of task shader invocations in a single local workgroup. The product of the X, Y, and Z sizes, as specified by theLocalSize
execution mode in shader modules or by the object decorated by theWorkgroupSize
decoration, must be less than or equal to this limit. -
maxTaskWorkGroupSize
[3] is the maximum size of a local task workgroup. These three values represent the maximum local workgroup size in the X, Y, and Z dimensions, respectively. Thex
,y
, andz
sizes, as specified by theLocalSize
execution mode or by the object decorated by theWorkgroupSize
decoration in shader modules, must be less than or equal to the corresponding limit. -
maxTaskTotalMemorySize
is the maximum number of bytes that the task shader can use in total for shared and output memory combined. -
maxTaskOutputCount
is the maximum number of output tasks a single task shader workgroup can emit. -
maxMeshWorkGroupInvocations
is the maximum total number of mesh shader invocations in a single local workgroup. The product of the X, Y, and Z sizes, as specified by theLocalSize
execution mode in shader modules or by the object decorated by theWorkgroupSize
decoration, must be less than or equal to this limit. -
maxMeshWorkGroupSize
[3] is the maximum size of a local mesh workgroup. These three values represent the maximum local workgroup size in the X, Y, and Z dimensions, respectively. Thex
,y
, andz
sizes, as specified by theLocalSize
execution mode or by the object decorated by theWorkgroupSize
decoration in shader modules, must be less than or equal to the corresponding limit. -
maxMeshTotalMemorySize
is the maximum number of bytes that the mesh shader can use in total for shared and output memory combined. -
maxMeshOutputVertices
is the maximum number of vertices a mesh shader output can store. -
maxMeshOutputPrimitives
is the maximum number of primitives a mesh shader output can store. -
maxMeshMultiviewViewCount
is the maximum number of multi-view views a mesh shader can use. -
meshOutputPerVertexGranularity
is the granularity with which mesh vertex outputs are allocated. The value can be used to compute the memory size used by the mesh shader, which must be less than or equal tomaxMeshTotalMemorySize
. -
meshOutputPerPrimitiveGranularity
is the granularity with which mesh outputs qualified as per-primitive are allocated. The value can be used to compute the memory size used by the mesh shader, which must be less than or equal tomaxMeshTotalMemorySize
.
If the VkPhysicalDeviceMeshShaderPropertiesNV
structure is included in
the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceDescriptorIndexingProperties
structure is defined
as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceDescriptorIndexingProperties {
VkStructureType sType;
void* pNext;
uint32_t maxUpdateAfterBindDescriptorsInAllPools;
VkBool32 shaderUniformBufferArrayNonUniformIndexingNative;
VkBool32 shaderSampledImageArrayNonUniformIndexingNative;
VkBool32 shaderStorageBufferArrayNonUniformIndexingNative;
VkBool32 shaderStorageImageArrayNonUniformIndexingNative;
VkBool32 shaderInputAttachmentArrayNonUniformIndexingNative;
VkBool32 robustBufferAccessUpdateAfterBind;
VkBool32 quadDivergentImplicitLod;
uint32_t maxPerStageDescriptorUpdateAfterBindSamplers;
uint32_t maxPerStageDescriptorUpdateAfterBindUniformBuffers;
uint32_t maxPerStageDescriptorUpdateAfterBindStorageBuffers;
uint32_t maxPerStageDescriptorUpdateAfterBindSampledImages;
uint32_t maxPerStageDescriptorUpdateAfterBindStorageImages;
uint32_t maxPerStageDescriptorUpdateAfterBindInputAttachments;
uint32_t maxPerStageUpdateAfterBindResources;
uint32_t maxDescriptorSetUpdateAfterBindSamplers;
uint32_t maxDescriptorSetUpdateAfterBindUniformBuffers;
uint32_t maxDescriptorSetUpdateAfterBindUniformBuffersDynamic;
uint32_t maxDescriptorSetUpdateAfterBindStorageBuffers;
uint32_t maxDescriptorSetUpdateAfterBindStorageBuffersDynamic;
uint32_t maxDescriptorSetUpdateAfterBindSampledImages;
uint32_t maxDescriptorSetUpdateAfterBindStorageImages;
uint32_t maxDescriptorSetUpdateAfterBindInputAttachments;
} VkPhysicalDeviceDescriptorIndexingProperties;
or the equivalent
// Provided by VK_EXT_descriptor_indexing
typedef VkPhysicalDeviceDescriptorIndexingProperties VkPhysicalDeviceDescriptorIndexingPropertiesEXT;
The members of the VkPhysicalDeviceDescriptorIndexingProperties
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure.
-
maxUpdateAfterBindDescriptorsInAllPools
is the maximum number of descriptors (summed over all descriptor types) that can be created across all pools that are created with theVK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT
bit set. Pool creation may fail when this limit is exceeded, or when the space this limit represents is unable to satisfy a pool creation due to fragmentation. -
shaderUniformBufferArrayNonUniformIndexingNative
is a boolean value indicating whether uniform buffer descriptors natively support nonuniform indexing. If this isVK_FALSE
, then a single dynamic instance of an instruction that nonuniformly indexes an array of uniform buffers may execute multiple times in order to access all the descriptors. -
shaderSampledImageArrayNonUniformIndexingNative
is a boolean value indicating whether sampler and image descriptors natively support nonuniform indexing. If this isVK_FALSE
, then a single dynamic instance of an instruction that nonuniformly indexes an array of samplers or images may execute multiple times in order to access all the descriptors. -
shaderStorageBufferArrayNonUniformIndexingNative
is a boolean value indicating whether storage buffer descriptors natively support nonuniform indexing. If this isVK_FALSE
, then a single dynamic instance of an instruction that nonuniformly indexes an array of storage buffers may execute multiple times in order to access all the descriptors. -
shaderStorageImageArrayNonUniformIndexingNative
is a boolean value indicating whether storage image descriptors natively support nonuniform indexing. If this isVK_FALSE
, then a single dynamic instance of an instruction that nonuniformly indexes an array of storage images may execute multiple times in order to access all the descriptors. -
shaderInputAttachmentArrayNonUniformIndexingNative
is a boolean value indicating whether input attachment descriptors natively support nonuniform indexing. If this isVK_FALSE
, then a single dynamic instance of an instruction that nonuniformly indexes an array of input attachments may execute multiple times in order to access all the descriptors. -
robustBufferAccessUpdateAfterBind
is a boolean value indicating whetherrobustBufferAccess
can be enabled in a device simultaneously withdescriptorBindingUniformBufferUpdateAfterBind
,descriptorBindingStorageBufferUpdateAfterBind
,descriptorBindingUniformTexelBufferUpdateAfterBind
, and/ordescriptorBindingStorageTexelBufferUpdateAfterBind
. If this isVK_FALSE
, then eitherrobustBufferAccess
must be disabled or all of these update-after-bind features must be disabled. -
quadDivergentImplicitLod
is a boolean value indicating whether implicit level of detail calculations for image operations have well-defined results when the image and/or sampler objects used for the instruction are not uniform within a quad. See Derivative Image Operations. -
maxPerStageDescriptorUpdateAfterBindSamplers
is similar tomaxPerStageDescriptorSamplers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageDescriptorUpdateAfterBindUniformBuffers
is similar tomaxPerStageDescriptorUniformBuffers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageDescriptorUpdateAfterBindStorageBuffers
is similar tomaxPerStageDescriptorStorageBuffers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageDescriptorUpdateAfterBindSampledImages
is similar tomaxPerStageDescriptorSampledImages
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageDescriptorUpdateAfterBindStorageImages
is similar tomaxPerStageDescriptorStorageImages
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageDescriptorUpdateAfterBindInputAttachments
is similar tomaxPerStageDescriptorInputAttachments
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxPerStageUpdateAfterBindResources
is similar tomaxPerStageResources
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindSamplers
is similar tomaxDescriptorSetSamplers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindUniformBuffers
is similar tomaxDescriptorSetUniformBuffers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindUniformBuffersDynamic
is similar tomaxDescriptorSetUniformBuffersDynamic
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindStorageBuffers
is similar tomaxDescriptorSetStorageBuffers
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindStorageBuffersDynamic
is similar tomaxDescriptorSetStorageBuffersDynamic
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindSampledImages
is similar tomaxDescriptorSetSampledImages
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindStorageImages
is similar tomaxDescriptorSetStorageImages
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetUpdateAfterBindInputAttachments
is similar tomaxDescriptorSetInputAttachments
but counts descriptors from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set.
If the VkPhysicalDeviceDescriptorIndexingProperties
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceInlineUniformBlockPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_inline_uniform_block
typedef struct VkPhysicalDeviceInlineUniformBlockPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t maxInlineUniformBlockSize;
uint32_t maxPerStageDescriptorInlineUniformBlocks;
uint32_t maxPerStageDescriptorUpdateAfterBindInlineUniformBlocks;
uint32_t maxDescriptorSetInlineUniformBlocks;
uint32_t maxDescriptorSetUpdateAfterBindInlineUniformBlocks;
} VkPhysicalDeviceInlineUniformBlockPropertiesEXT;
The members of the VkPhysicalDeviceInlineUniformBlockPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxInlineUniformBlockSize
is the maximum size in bytes of an inline uniform block binding. -
maxPerStageDescriptorInlineUniformBlock
is the maximum number of inline uniform block bindings that can be accessible to a single shader stage in a pipeline layout. Descriptor bindings with a descriptor type ofVK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
count against this limit. Only descriptor bindings in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. -
maxPerStageDescriptorUpdateAfterBindInlineUniformBlocks
is similar tomaxPerStageDescriptorInlineUniformBlocks
but counts descriptor bindings from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set. -
maxDescriptorSetInlineUniformBlocks
is the maximum number of inline uniform block bindings that can be included in descriptor bindings in a pipeline layout across all pipeline shader stages and descriptor set numbers. Descriptor bindings with a descriptor type ofVK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT
count against this limit. Only descriptor bindings in descriptor set layouts created without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set count against this limit. -
maxDescriptorSetUpdateAfterBindInlineUniformBlocks
is similar tomaxDescriptorSetInlineUniformBlocks
but counts descriptor bindings from descriptor sets created with or without theVK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT
bit set.
If the VkPhysicalDeviceInlineUniformBlockPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceConservativeRasterizationPropertiesEXT
structure
is defined as:
// Provided by VK_EXT_conservative_rasterization
typedef struct VkPhysicalDeviceConservativeRasterizationPropertiesEXT {
VkStructureType sType;
void* pNext;
float primitiveOverestimationSize;
float maxExtraPrimitiveOverestimationSize;
float extraPrimitiveOverestimationSizeGranularity;
VkBool32 primitiveUnderestimation;
VkBool32 conservativePointAndLineRasterization;
VkBool32 degenerateTrianglesRasterized;
VkBool32 degenerateLinesRasterized;
VkBool32 fullyCoveredFragmentShaderInputVariable;
VkBool32 conservativeRasterizationPostDepthCoverage;
} VkPhysicalDeviceConservativeRasterizationPropertiesEXT;
The members of the
VkPhysicalDeviceConservativeRasterizationPropertiesEXT
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
primitiveOverestimationSize
is the size in pixels the generating primitive is increased at each of its edges during conservative rasterization overestimation mode. Even with a size of 0.0, conservative rasterization overestimation rules still apply and if any part of the pixel rectangle is covered by the generating primitive, fragments are generated for the entire pixel. However implementations may make the pixel coverage area even more conservative by increasing the size of the generating primitive. -
maxExtraPrimitiveOverestimationSize
is the maximum size in pixels of extra overestimation the implementation supports in the pipeline state. A value of 0.0 means the implementation does not support any additional overestimation of the generating primitive during conservative rasterization. A value above 0.0 allows the application to further increase the size of the generating primitive during conservative rasterization overestimation. -
extraPrimitiveOverestimationSizeGranularity
is the granularity of extra overestimation that can be specified in the pipeline state between 0.0 andmaxExtraPrimitiveOverestimationSize
inclusive. A value of 0.0 means the implementation can use the smallest representable non-zero value in the screen space pixel fixed-point grid. -
primitiveUnderestimation
is true if the implementation supports theVK_CONSERVATIVE_RASTERIZATION_MODE_UNDERESTIMATE_EXT
conservative rasterization mode in addition toVK_CONSERVATIVE_RASTERIZATION_MODE_OVERESTIMATE_EXT
. Otherwise the implementation only supportsVK_CONSERVATIVE_RASTERIZATION_MODE_OVERESTIMATE_EXT
. -
conservativePointAndLineRasterization
is true if the implementation supports conservative rasterization of point and line primitives as well as triangle primitives. Otherwise the implementation only supports triangle primitives. -
degenerateTrianglesRasterized
is false if the implementation culls primitives generated from triangles that become zero area after they are quantized to the fixed-point rasterization pixel grid.degenerateTrianglesRasterized
is true if these primitives are not culled and the provoking vertex attributes and depth value are used for the fragments. The primitive area calculation is done on the primitive generated from the clipped triangle if applicable. Zero area primitives are backfacing and the application can enable backface culling if desired. -
degenerateLinesRasterized
is false if the implementation culls lines that become zero length after they are quantized to the fixed-point rasterization pixel grid.degenerateLinesRasterized
is true if zero length lines are not culled and the provoking vertex attributes and depth value are used for the fragments. -
fullyCoveredFragmentShaderInputVariable
is true if the implementation supports the SPIR-V builtin fragment shader input variableFullyCoveredEXT
which specifies that conservative rasterization is enabled and the fragment area is fully covered by the generating primitive. -
conservativeRasterizationPostDepthCoverage
is true if the implementation supports conservative rasterization with thePostDepthCoverage
execution mode enabled. When supported theSampleMask
built-in input variable will reflect the coverage after the early per-fragment depth and stencil tests are applied even when conservative rasterization is enabled. OtherwisePostDepthCoverage
execution mode must not be used when conservative rasterization is enabled.
If the VkPhysicalDeviceConservativeRasterizationPropertiesEXT
structure is included in the pNext
chain of
VkPhysicalDeviceProperties2, it is filled with the
implementation-dependent limits and properties.
The VkPhysicalDeviceFragmentDensityMapPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_fragment_density_map
typedef struct VkPhysicalDeviceFragmentDensityMapPropertiesEXT {
VkStructureType sType;
void* pNext;
VkExtent2D minFragmentDensityTexelSize;
VkExtent2D maxFragmentDensityTexelSize;
VkBool32 fragmentDensityInvocations;
} VkPhysicalDeviceFragmentDensityMapPropertiesEXT;
The members of the VkPhysicalDeviceFragmentDensityMapPropertiesEXT
structure describe the following implementation-dependent limits:
-
minFragmentDensityTexelSize
is the minimum fragment density texel size. -
maxFragmentDensityTexelSize
is the maximum fragment density texel size. -
fragmentDensityInvocations
specifies whether the implementation may invoke additional fragment shader invocations for each covered sample.
If the VkPhysicalDeviceFragmentDensityMapPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits and properties.
The VkPhysicalDeviceFragmentDensityMap2PropertiesEXT
structure is
defined as:
// Provided by VK_EXT_fragment_density_map2
typedef struct VkPhysicalDeviceFragmentDensityMap2PropertiesEXT {
VkStructureType sType;
void* pNext;
VkBool32 subsampledLoads;
VkBool32 subsampledCoarseReconstructionEarlyAccess;
uint32_t maxSubsampledArrayLayers;
uint32_t maxDescriptorSetSubsampledSamplers;
} VkPhysicalDeviceFragmentDensityMap2PropertiesEXT;
The members of the VkPhysicalDeviceFragmentDensityMap2PropertiesEXT
structure describe the following implementation-dependent limits:
-
subsampledLoads
specifies if performing image data read with load operations on subsampled attachments will be resampled to the fragment density of the render pass -
subsampledCoarseReconstructionEarlyAccess
specifies if performing image data read with samplers created withflags
containingVK_SAMPLER_CREATE_SUBSAMPLED_COARSE_RECONSTRUCTION_BIT_EXT
in fragment shader will trigger additional reads duringVK_PIPELINE_STAGE_VERTEX_SHADER_BIT
-
maxSubsampledArrayLayers
is the maximum number of VkImageView array layers for usages supporting subsampled samplers -
maxDescriptorSetSubsampledSamplers
is the maximum number of subsampled samplers that can be included in a VkPipelineLayout
If the VkPhysicalDeviceFragmentDensityMap2PropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits and properties.
The VkPhysicalDeviceShaderCorePropertiesAMD
structure is defined as:
// Provided by VK_AMD_shader_core_properties
typedef struct VkPhysicalDeviceShaderCorePropertiesAMD {
VkStructureType sType;
void* pNext;
uint32_t shaderEngineCount;
uint32_t shaderArraysPerEngineCount;
uint32_t computeUnitsPerShaderArray;
uint32_t simdPerComputeUnit;
uint32_t wavefrontsPerSimd;
uint32_t wavefrontSize;
uint32_t sgprsPerSimd;
uint32_t minSgprAllocation;
uint32_t maxSgprAllocation;
uint32_t sgprAllocationGranularity;
uint32_t vgprsPerSimd;
uint32_t minVgprAllocation;
uint32_t maxVgprAllocation;
uint32_t vgprAllocationGranularity;
} VkPhysicalDeviceShaderCorePropertiesAMD;
The members of the VkPhysicalDeviceShaderCorePropertiesAMD
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
shaderEngineCount
is an unsigned integer value indicating the number of shader engines found inside the shader core of the physical device. -
shaderArraysPerEngineCount
is an unsigned integer value indicating the number of shader arrays inside a shader engine. Each shader array has its own scan converter, set of compute units, and a render back end (color and depth buffers). Shader arrays within a shader engine share shader processor input (wave launcher) and shader export (export buffer) units. Currently, a shader engine can have one or two shader arrays. -
computeUnitsPerShaderArray
is an unsigned integer value indicating the physical number of compute units within a shader array. The active number of compute units in a shader array may be lower. A compute unit houses a set of SIMDs along with a sequencer module and a local data store. -
simdPerComputeUnit
is an unsigned integer value indicating the number of SIMDs inside a compute unit. Each SIMD processes a single instruction at a time. -
wavefrontSize
is an unsigned integer value indicating the maximum size of a subgroup. -
sgprsPerSimd
is an unsigned integer value indicating the number of physical Scalar General Purpose Registers (SGPRs) per SIMD. -
minSgprAllocation
is an unsigned integer value indicating the minimum number of SGPRs allocated for a wave. -
maxSgprAllocation
is an unsigned integer value indicating the maximum number of SGPRs allocated for a wave. -
sgprAllocationGranularity
is an unsigned integer value indicating the granularity of SGPR allocation for a wave. -
vgprsPerSimd
is an unsigned integer value indicating the number of physical Vector General Purpose Registers (VGPRs) per SIMD. -
minVgprAllocation
is an unsigned integer value indicating the minimum number of VGPRs allocated for a wave. -
maxVgprAllocation
is an unsigned integer value indicating the maximum number of VGPRs allocated for a wave. -
vgprAllocationGranularity
is an unsigned integer value indicating the granularity of VGPR allocation for a wave.
If the VkPhysicalDeviceShaderCorePropertiesAMD
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceShaderCoreProperties2AMD
structure is defined as:
// Provided by VK_AMD_shader_core_properties2
typedef struct VkPhysicalDeviceShaderCoreProperties2AMD {
VkStructureType sType;
void* pNext;
VkShaderCorePropertiesFlagsAMD shaderCoreFeatures;
uint32_t activeComputeUnitCount;
} VkPhysicalDeviceShaderCoreProperties2AMD;
The members of the VkPhysicalDeviceShaderCoreProperties2AMD
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
shaderCoreFeatures
is a bitmask of VkShaderCorePropertiesFlagBitsAMD indicating the set of features supported by the shader core. -
activeComputeUnitCount
is an unsigned integer value indicating the number of compute units that have been enabled.
If the VkPhysicalDeviceShaderCoreProperties2AMD
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
Bits for this type may be defined by future extensions, or new versions of
the VK_AMD_shader_core_properties2
extension.
Possible values of the flags
member of
VkShaderCorePropertiesFlagsAMD are:
// Provided by VK_AMD_shader_core_properties2
typedef enum VkShaderCorePropertiesFlagBitsAMD {
} VkShaderCorePropertiesFlagBitsAMD;
// Provided by VK_AMD_shader_core_properties2
typedef VkFlags VkShaderCorePropertiesFlagsAMD;
VkShaderCorePropertiesFlagsAMD
is a bitmask type for providing zero or
more VkShaderCorePropertiesFlagBitsAMD.
The VkPhysicalDeviceDepthStencilResolveProperties
structure is defined
as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceDepthStencilResolveProperties {
VkStructureType sType;
void* pNext;
VkResolveModeFlags supportedDepthResolveModes;
VkResolveModeFlags supportedStencilResolveModes;
VkBool32 independentResolveNone;
VkBool32 independentResolve;
} VkPhysicalDeviceDepthStencilResolveProperties;
or the equivalent
// Provided by VK_KHR_depth_stencil_resolve
typedef VkPhysicalDeviceDepthStencilResolveProperties VkPhysicalDeviceDepthStencilResolvePropertiesKHR;
The members of the VkPhysicalDeviceDepthStencilResolveProperties
structure describe the following implementation-dependent limits:
-
supportedDepthResolveModes
is a bitmask of VkResolveModeFlagBits indicating the set of supported depth resolve modes.VK_RESOLVE_MODE_SAMPLE_ZERO_BIT
must be included in the set but implementations may support additional modes. -
supportedStencilResolveModes
is a bitmask of VkResolveModeFlagBits indicating the set of supported stencil resolve modes.VK_RESOLVE_MODE_SAMPLE_ZERO_BIT
must be included in the set but implementations may support additional modes.VK_RESOLVE_MODE_AVERAGE_BIT
must not be included in the set. -
independentResolveNone
isVK_TRUE
if the implementation supports setting the depth and stencil resolve modes to different values when one of those modes isVK_RESOLVE_MODE_NONE
. Otherwise the implementation only supports setting both modes to the same value. -
independentResolve
isVK_TRUE
if the implementation supports all combinations of the supported depth and stencil resolve modes, including setting either depth or stencil resolve mode toVK_RESOLVE_MODE_NONE
. An implementation that supportsindependentResolve
must also supportindependentResolveNone
.
The VkPhysicalDevicePerformanceQueryPropertiesKHR
structure is defined
as:
// Provided by VK_KHR_performance_query
typedef struct VkPhysicalDevicePerformanceQueryPropertiesKHR {
VkStructureType sType;
void* pNext;
VkBool32 allowCommandBufferQueryCopies;
} VkPhysicalDevicePerformanceQueryPropertiesKHR;
The members of the VkPhysicalDevicePerformanceQueryPropertiesKHR
structure describe the following implementation-dependent properties:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
allowCommandBufferQueryCopies
isVK_TRUE
if the performance query pools are allowed to be used with vkCmdCopyQueryPoolResults.
If the VkPhysicalDevicePerformanceQueryPropertiesKHR
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent properties.
The VkPhysicalDeviceShadingRateImagePropertiesNV
structure is defined
as:
// Provided by VK_NV_shading_rate_image
typedef struct VkPhysicalDeviceShadingRateImagePropertiesNV {
VkStructureType sType;
void* pNext;
VkExtent2D shadingRateTexelSize;
uint32_t shadingRatePaletteSize;
uint32_t shadingRateMaxCoarseSamples;
} VkPhysicalDeviceShadingRateImagePropertiesNV;
The members of the VkPhysicalDeviceShadingRateImagePropertiesNV
structure describe the following implementation-dependent properties related
to the shading rate image feature:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
shadingRateTexelSize
indicates the width and height of the portion of the framebuffer corresponding to each texel in the shading rate image. -
shadingRatePaletteSize
indicates the maximum number of palette entries supported for the shading rate image. -
shadingRateMaxCoarseSamples
specifies the maximum number of coverage samples supported in a single fragment. If the product of the fragment size derived from the base shading rate and the number of coverage samples per pixel exceeds this limit, the final shading rate will be adjusted so that its product does not exceed the limit.
If the VkPhysicalDeviceShadingRateImagePropertiesNV
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceTransformFeedbackPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_transform_feedback
typedef struct VkPhysicalDeviceTransformFeedbackPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t maxTransformFeedbackStreams;
uint32_t maxTransformFeedbackBuffers;
VkDeviceSize maxTransformFeedbackBufferSize;
uint32_t maxTransformFeedbackStreamDataSize;
uint32_t maxTransformFeedbackBufferDataSize;
uint32_t maxTransformFeedbackBufferDataStride;
VkBool32 transformFeedbackQueries;
VkBool32 transformFeedbackStreamsLinesTriangles;
VkBool32 transformFeedbackRasterizationStreamSelect;
VkBool32 transformFeedbackDraw;
} VkPhysicalDeviceTransformFeedbackPropertiesEXT;
The members of the VkPhysicalDeviceTransformFeedbackPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxTransformFeedbackStreams
is the maximum number of vertex streams that can be output from geometry shaders declared with theGeometryStreams
capability. If the implementation does not supportVkPhysicalDeviceTransformFeedbackFeaturesEXT
::geometryStreams
thenmaxTransformFeedbackStreams
must be set to1
. -
maxTransformFeedbackBuffers
is the maximum number of transform feedback buffers that can be bound for capturing shader outputs from the last vertex processing stage. -
maxTransformFeedbackBufferSize
is the maximum size that can be specified when binding a buffer for transform feedback in vkCmdBindTransformFeedbackBuffersEXT. -
maxTransformFeedbackStreamDataSize
is the maximum amount of data in bytes for each vertex that captured to one or more transform feedback buffers associated with a specific vertex stream. -
maxTransformFeedbackBufferDataSize
is the maximum amount of data in bytes for each vertex that can be captured to a specific transform feedback buffer. -
maxTransformFeedbackBufferDataStride
is the maximum stride between each capture of vertex data to the buffer. -
transformFeedbackQueries
is true if the implementation supports theVK_QUERY_TYPE_TRANSFORM_FEEDBACK_STREAM_EXT
query type.transformFeedbackQueries
is false if queries of this type cannot be created. -
transformFeedbackStreamsLinesTriangles
is true if the implementation supports the geometry shaderOpExecutionMode
ofOutputLineStrip
andOutputTriangleStrip
in addition toOutputPoints
when more than one vertex stream is output. IftransformFeedbackStreamsLinesTriangles
is false the implementation only supports anOpExecutionMode
ofOutputPoints
when more than one vertex stream is output from the geometry shader. -
transformFeedbackRasterizationStreamSelect
is true if the implementation supports theGeometryStreams
SPIR-V capability and the application can use VkPipelineRasterizationStateStreamCreateInfoEXT to modify which vertex stream output is used for rasterization. Otherwise vertex stream0
must always be used for rasterization. -
transformFeedbackDraw
is true if the implementation supports the vkCmdDrawIndirectByteCountEXT function otherwise the function must not be called.
If the VkPhysicalDeviceTransformFeedbackPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits and properties.
The VkPhysicalDeviceRayTracingPropertiesNV
structure is defined as:
// Provided by VK_NV_ray_tracing
typedef struct VkPhysicalDeviceRayTracingPropertiesNV {
VkStructureType sType;
void* pNext;
uint32_t shaderGroupHandleSize;
uint32_t maxRecursionDepth;
uint32_t maxShaderGroupStride;
uint32_t shaderGroupBaseAlignment;
uint64_t maxGeometryCount;
uint64_t maxInstanceCount;
uint64_t maxTriangleCount;
uint32_t maxDescriptorSetAccelerationStructures;
} VkPhysicalDeviceRayTracingPropertiesNV;
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
shaderGroupHandleSize
size in bytes of the shader header. -
maxRecursionDepth
is the maximum number of levels of recursion allowed in a trace command. -
maxShaderGroupStride
is the maximum stride in bytes allowed between shader groups in the SBT. -
shaderGroupBaseAlignment
is the required alignment in bytes for the base of the SBTs. -
maxGeometryCount
is the maximum number of geometries in the bottom level acceleration structure. -
maxInstanceCount
is the maximum number of instances in the top level acceleration structure. -
maxTriangleCount
is the maximum number of triangles in all geometries in the bottom level acceleration structure. -
maxDescriptorSetAccelerationStructures
is the maximum number of acceleration structure descriptors that are allowed in a descriptor set.
If the VkPhysicalDeviceRayTracingPropertiesNV
structure is included in
the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
Limits specified by this structure must match those specified with the same name in VkPhysicalDeviceRayTracingPropertiesKHR.
The VkPhysicalDeviceRayTracingPropertiesKHR
structure is defined as:
// Provided by VK_KHR_ray_tracing
typedef struct VkPhysicalDeviceRayTracingPropertiesKHR {
VkStructureType sType;
void* pNext;
uint32_t shaderGroupHandleSize;
uint32_t maxRecursionDepth;
uint32_t maxShaderGroupStride;
uint32_t shaderGroupBaseAlignment;
uint64_t maxGeometryCount;
uint64_t maxInstanceCount;
uint64_t maxPrimitiveCount;
uint32_t maxDescriptorSetAccelerationStructures;
uint32_t shaderGroupHandleCaptureReplaySize;
} VkPhysicalDeviceRayTracingPropertiesKHR;
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
shaderGroupHandleSize
size in bytes of the shader header. -
maxRecursionDepth
is the maximum number of levels of recursion allowed in a trace command. -
maxShaderGroupStride
is the maximum stride in bytes allowed between shader groups in the SBT. -
shaderGroupBaseAlignment
is the required alignment in bytes for the base of the SBTs. -
maxGeometryCount
is the maximum number of geometries in the bottom level acceleration structure. -
maxInstanceCount
is the maximum number of instances in the top level acceleration structure. -
maxPrimitiveCount
is the maximum number of triangles or AABBs in all geometries in the bottom level acceleration structure. -
maxDescriptorSetAccelerationStructures
is the maximum number of acceleration structure descriptors that are allowed in a descriptor set. -
shaderGroupHandleCaptureReplaySize
is the number of bytes for the information required to do capture and replay for shader group handles.
If the VkPhysicalDeviceRayTracingPropertiesKHR
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
Limits specified by this structure must match those specified with the same name in VkPhysicalDeviceRayTracingPropertiesNV.
The VkPhysicalDeviceCooperativeMatrixPropertiesNV
structure is defined
as:
// Provided by VK_NV_cooperative_matrix
typedef struct VkPhysicalDeviceCooperativeMatrixPropertiesNV {
VkStructureType sType;
void* pNext;
VkShaderStageFlags cooperativeMatrixSupportedStages;
} VkPhysicalDeviceCooperativeMatrixPropertiesNV;
The members of the VkPhysicalDeviceCooperativeMatrixPropertiesNV
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
cooperativeMatrixSupportedStages
is a bitfield of VkShaderStageFlagBits describing the shader stages that cooperative matrix instructions are supported in.cooperativeMatrixSupportedStages
will have theVK_SHADER_STAGE_COMPUTE_BIT
bit set if any of the physical device’s queues supportVK_QUEUE_COMPUTE_BIT
.
If the VkPhysicalDeviceCooperativeMatrixPropertiesNV
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceShaderSMBuiltinsPropertiesNV
structure is defined
as:
// Provided by VK_NV_shader_sm_builtins
typedef struct VkPhysicalDeviceShaderSMBuiltinsPropertiesNV {
VkStructureType sType;
void* pNext;
uint32_t shaderSMCount;
uint32_t shaderWarpsPerSM;
} VkPhysicalDeviceShaderSMBuiltinsPropertiesNV;
The members of the VkPhysicalDeviceShaderSMBuiltinsPropertiesNV
structure describe the following implementation-dependent limits:
If the VkPhysicalDeviceShaderSMBuiltinsPropertiesNV
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_texel_buffer_alignment
typedef struct VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT {
VkStructureType sType;
void* pNext;
VkDeviceSize storageTexelBufferOffsetAlignmentBytes;
VkBool32 storageTexelBufferOffsetSingleTexelAlignment;
VkDeviceSize uniformTexelBufferOffsetAlignmentBytes;
VkBool32 uniformTexelBufferOffsetSingleTexelAlignment;
} VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT;
The members of the VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
storageTexelBufferOffsetAlignmentBytes
is a byte alignment that is sufficient for a storage texel buffer of any format. -
storageTexelBufferOffsetSingleTexelAlignment
indicates whether single texel alignment is sufficient for a storage texel buffer of any format. -
uniformTexelBufferOffsetAlignmentBytes
is a byte alignment that is sufficient for a uniform texel buffer of any format. -
uniformTexelBufferOffsetSingleTexelAlignment
indicates whether single texel alignment is sufficient for a uniform texel buffer of any format.
If the VkPhysicalDeviceTexelBufferAlignmentPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
If the single texel alignment property is VK_FALSE
, then the buffer
view’s offset must be aligned to the corresponding byte alignment value.
If the single texel alignment property is VK_TRUE
, then the buffer
view’s offset must be aligned to the lesser of the corresponding byte
alignment value or the size of a single texel, based on
VkBufferViewCreateInfo::format
.
If the size of a single texel is a multiple of three bytes, then the size of
a single component of the format is used instead.
These limits must not advertise a larger alignment than the
required maximum minimum value of
VkPhysicalDeviceLimits::minTexelBufferOffsetAlignment
, for any
format that supports use as a texel buffer.
To query the timeline semaphore properties of a physical device, add a
VkPhysicalDeviceTimelineSemaphoreProperties structure to the
pNext
chain of the VkPhysicalDeviceProperties2 structure.
The VkPhysicalDeviceTimelineSemaphoreProperties
structure is defined
as:
// Provided by VK_VERSION_1_2
typedef struct VkPhysicalDeviceTimelineSemaphoreProperties {
VkStructureType sType;
void* pNext;
uint64_t maxTimelineSemaphoreValueDifference;
} VkPhysicalDeviceTimelineSemaphoreProperties;
or the equivalent
// Provided by VK_KHR_timeline_semaphore
typedef VkPhysicalDeviceTimelineSemaphoreProperties VkPhysicalDeviceTimelineSemaphorePropertiesKHR;
The members of the VkPhysicalDeviceTimelineSemaphoreProperties
structure describe the following implementation-dependent limits:
The VkPhysicalDeviceLineRasterizationPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_line_rasterization
typedef struct VkPhysicalDeviceLineRasterizationPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t lineSubPixelPrecisionBits;
} VkPhysicalDeviceLineRasterizationPropertiesEXT;
The members of the VkPhysicalDeviceLineRasterizationPropertiesEXT
structure describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
lineSubPixelPrecisionBits
is the number of bits of subpixel precision in framebuffer coordinates xf and yf when rasterizing line segments.
If the VkPhysicalDeviceLineRasterizationPropertiesEXT
structure is
included in the pNext
chain of VkPhysicalDeviceProperties2, it
is filled with the implementation-dependent limits.
The VkPhysicalDeviceRobustness2PropertiesEXT
structure is defined as:
// Provided by VK_EXT_robustness2
typedef struct VkPhysicalDeviceRobustness2PropertiesEXT {
VkStructureType sType;
void* pNext;
VkDeviceSize robustStorageBufferAccessSizeAlignment;
VkDeviceSize robustUniformBufferAccessSizeAlignment;
} VkPhysicalDeviceRobustness2PropertiesEXT;
The members of the VkPhysicalDeviceRobustness2PropertiesEXT
structure
describe the following implementation-dependent limits:
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
robustStorageBufferAccessSizeAlignment
is the number of bytes that the range of a storage buffer descriptor is rounded up to when used for bounds-checking whenrobustBufferAccess2
is enabled. This value is either 1 or 4. -
robustUniformBufferAccessSizeAlignment
is the number of bytes that the range of a uniform buffer descriptor is rounded up to when used for bounds-checking whenrobustBufferAccess2
is enabled. This value is a power of two in the range [1, 256].
If the VkPhysicalDeviceRobustness2PropertiesEXT
structure is included
in the pNext
chain of VkPhysicalDeviceProperties2, it is filled
with the implementation-dependent limits.
The VkPhysicalDeviceDeviceGeneratedCommandsPropertiesNV
structure is
defined as:
// Provided by VK_NV_device_generated_commands
typedef struct VkPhysicalDeviceDeviceGeneratedCommandsPropertiesNV {
VkStructureType sType;
void* pNext;
uint32_t maxGraphicsShaderGroupCount;
uint32_t maxIndirectSequenceCount;
uint32_t maxIndirectCommandsTokenCount;
uint32_t maxIndirectCommandsStreamCount;
uint32_t maxIndirectCommandsTokenOffset;
uint32_t maxIndirectCommandsStreamStride;
uint32_t minSequencesCountBufferOffsetAlignment;
uint32_t minSequencesIndexBufferOffsetAlignment;
uint32_t minIndirectCommandsBufferOffsetAlignment;
} VkPhysicalDeviceDeviceGeneratedCommandsPropertiesNV;
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxGraphicsShaderGroupCount
is the maximum number of shader groups in VkGraphicsPipelineShaderGroupsCreateInfoNV. -
maxIndirectSequenceCount
is the maximum number of sequences in VkGeneratedCommandsInfoNV and in VkGeneratedCommandsMemoryRequirementsInfoNV. -
maxIndirectCommandsLayoutTokenCount
is the maximum number of tokens in VkIndirectCommandsLayoutCreateInfoNV. -
maxIndirectCommandsStreamCount
is the maximum number of streams in VkIndirectCommandsLayoutCreateInfoNV. -
maxIndirectCommandsTokenOffset
is the maximum offset inVkIndirectCommandsLayoutTokenNV
. -
maxIndirectCommandsStreamStride
is the maximum stream stride in VkIndirectCommandsLayoutCreateInfoNV. -
minSequenceCountBufferOffsetAlignment
is the minimum alignment for memory addresses optionally used inVkGeneratedCommandsInfoNV
. -
minSequenceIndexBufferOffsetAlignment
is the minimum alignment for memory addresses optionally used inVkGeneratedCommandsInfoNV
. -
minIndirectCommandsBufferOffsetAlignment
is the minimum alignment for memory addresses used inVkIndirectCommandsStreamNV
and as preprocess buffer inVkGeneratedCommandsInfoNV
.
39.1. Limit Requirements
The following table specifies the required minimum/maximum for all Vulkan graphics implementations. Where a limit corresponds to a fine-grained device feature which is optional, the feature name is listed with two required limits, one when the feature is supported and one when it is not supported. If an implementation supports a feature, the limits reported are the same whether or not the feature is enabled.
Type | Limit | Feature |
---|---|---|
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- |
|
|
- |
|
|
|
|
|
- |
|
|
- |
3 × |
|
- |
|
|
- |
3 × |
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
- |
|
|
|
|
|
|
2 × |
|
- |
2 × |
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- |
|
|
- |
|
|
- |
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
- |
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
- |
2 × |
|
|
2 × |
|
|
|
|
|
|
|
|
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Limit | Unsupported Limit | Supported Limit | Limit Type1 |
---|---|---|---|
|
- |
4096 |
min |
|
- |
4096 |
min |
|
- |
256 |
min |
|
- |
4096 |
min |
|
- |
256 |
min |
|
- |
65536 |
min |
|
- |
16384 |
min |
|
- |
227 |
min |
|
- |
128 |
min |
|
- |
4096 |
min |
|
- |
4000 |
min |
|
- |
131072 |
max |
|
0 |
231 |
min |
|
- |
4 |
min |
|
- |
16 |
min |
|
- |
12 |
min |
|
- |
4 |
min |
|
- |
16 |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
- |
128 2 |
min |
|
- |
96 8 |
min, n × PerStage |
|
- |
72 8 |
min, n × PerStage |
|
- |
8 |
min |
|
- |
24 8 |
min, n × PerStage |
|
- |
4 |
min |
|
- |
96 8 |
min, n × PerStage |
|
- |
24 8 |
min, n × PerStage |
|
- |
4 |
min |
|
- |
16 |
min |
|
- |
16 |
min |
|
- |
2047 |
min |
|
- |
2048 |
min |
|
- |
64 |
min |
|
0 |
64 |
min |
|
0 |
32 |
min |
|
0 |
64 |
min |
|
0 |
64 |
min |
|
0 |
120 |
min |
|
0 |
2048 |
min |
|
0 |
64 |
min |
|
0 |
64 |
min |
|
0 |
32 |
min |
|
0 |
64 |
min |
|
0 |
64 |
min |
|
0 |
256 |
min |
|
0 |
1024 |
min |
|
- |
64 |
min |
|
- |
4 |
min |
|
0 |
1 |
min |
|
- |
4 |
min |
|
- |
16384 |
min |
|
- |
(65535,65535,65535) |
min |
|
- |
128 |
min |
|
- |
(128,128,64) |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
224-1 |
232-1 |
min |
|
1 |
216-1 |
min |
|
- |
2 |
min |
|
1 |
16 |
min |
|
1 |
16 |
min |
|
- |
(4096,4096) 3 |
min |
|
- |
(-8192,8191) 4 |
(max,min) |
|
- |
0 |
min |
|
- |
64 |
min |
|
- |
256 |
max |
|
- |
256 |
max |
|
- |
256 |
max |
|
- |
-8 |
max |
|
- |
7 |
min |
|
0 |
-8 |
max |
|
0 |
7 |
min |
|
0.0 |
-0.5 5 |
max |
|
0.0 |
0.5 - (1 ULP) 5 |
min |
|
0 |
4 5 |
min |
|
- |
4096 |
min |
|
- |
4096 |
min |
|
- |
256 |
min |
|
- |
( |
min |
|
- |
( |
min |
|
- |
( |
min |
|
- |
( |
min |
|
- |
( |
min |
|
- |
4 |
min |
|
- |
( |
min |
|
- |
|
min |
|
- |
( |
min |
|
- |
( |
min |
|
|
( |
min |
|
- |
1 |
min |
|
- |
- |
implementation dependent |
|
- |
- |
duration |
|
0 |
8 |
min |
|
0 |
8 |
min |
|
0 |
8 |
min |
|
- |
2 |
min |
|
(1.0,1.0) |
(1.0,64.0 - ULP)6 |
(max,min) |
|
(1.0,1.0) |
(1.0,8.0 - ULP)7 |
(max,min) |
|
0.0 |
1.0 6 |
max, fixed point increment |
|
0.0 |
1.0 7 |
max, fixed point increment |
|
- |
- |
implementation dependent |
|
- |
- |
implementation dependent |
|
- |
- |
recommendation |
|
- |
- |
recommendation |
|
- |
256 |
max |
|
- |
32 |
min |
|
- |
6 |
min |
|
- |
227-1 |
min |
|
0 |
4 |
min |
|
- |
|
min |
|
- |
(1,1) |
min |
|
- |
(0.0, 0.9375) |
(max,min) |
|
- |
4 |
min |
|
- |
false |
implementation dependent |
|
- |
65536 |
max |
|
- |
- |
implementation dependent |
|
- |
- |
implementation dependent |
|
- |
- |
implementation dependent |
|
- |
1 |
min |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
1024 |
min |
|
- |
230 |
min |
|
- |
0.0 |
min |
|
- |
0.0 |
min |
|
- |
0.0 |
min |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
0 |
500000 |
min |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
09 |
500000 9 |
min |
|
09 |
12 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
4 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
72 8 9 |
min, n × PerStage |
|
09 |
8 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
4 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
500000 9 |
min |
|
09 |
4 9 |
min |
|
- |
256 |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
- |
4 |
min |
|
- |
216-1 |
min |
|
- |
216-1 |
min |
|
- |
32 |
min |
|
- |
(32,1,1) |
min |
|
- |
16384 |
min |
|
- |
216-1 |
min |
|
- |
32 |
min |
|
- |
(32,1,1) |
min |
|
- |
16384 |
min |
|
- |
256 |
min |
|
- |
256 |
min |
|
- |
1 |
min |
|
- |
- |
implementation dependent |
|
- |
- |
implementation dependent |
|
- |
1 |
min |
|
- |
1 |
min |
|
- |
227 |
min |
|
- |
512 |
min |
|
- |
512 |
min |
|
- |
512 |
min |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
false |
implementation dependent |
|
- |
(1,1) |
min |
|
- |
(1,1) |
min |
|
- |
- |
implementation dependent |
|
true |
false |
implementation dependent |
|
false |
false |
implementation dependent |
|
2 |
2 |
min |
|
1 |
1 |
min |
VkPhysicalDeviceRayTracingPropertiesNV:: |
- |
16 |
min |
VkPhysicalDeviceRayTracingPropertiesNV:: |
- |
31 |
min |
VkPhysicalDeviceRayTracingPropertiesKHR:: |
- |
32 |
exact |
VkPhysicalDeviceRayTracingPropertiesKHR:: |
- |
1 |
min |
|
- |
64 |
max |
|
- |
224-1 |
min |
|
- |
224-1 |
min |
|
- |
229-1 |
min |
|
- |
229-1 |
min |
|
- |
16 |
min |
|
- |
231-1 |
min |
|
- |
4 |
min |
|
- |
212 |
min |
|
- |
220 |
min |
|
- |
16 |
min |
|
- |
16 |
min |
|
- |
2047 |
min |
|
- |
2048 |
min |
|
- |
256 |
max |
|
- |
256 |
max |
|
- |
256 |
max |
|
- |
32 |
min |
|
- |
4 |
max |
|
- |
256 |
max |
- 1
-
The Limit Type column specifies the limit is either the minimum limit all implementations must support, the maximum limit all implementations must support, or the exact value all implementations must support. For bitmasks a minimum limit is the least bits all implementations must set, but they may have additional bits set beyond this minimum.
- 2
-
The
maxPerStageResources
must be at least the smallest of the following:-
the sum of the
maxPerStageDescriptorUniformBuffers
,maxPerStageDescriptorStorageBuffers
,maxPerStageDescriptorSampledImages
,maxPerStageDescriptorStorageImages
,maxPerStageDescriptorInputAttachments
,maxColorAttachments
limits, or -
128.
It may not be possible to reach this limit in every stage.
-
- 3
-
See
maxViewportDimensions
for the required relationship to other limits. - 4
-
See
viewportBoundsRange
for the required relationship to other limits. - 5
-
The values
minInterpolationOffset
andmaxInterpolationOffset
describe the closed interval of supported interpolation offsets: [minInterpolationOffset
,maxInterpolationOffset
]. The ULP is determined bysubPixelInterpolationOffsetBits
. IfsubPixelInterpolationOffsetBits
is 4, this provides increments of (1/24) = 0.0625, and thus the range of supported interpolation offsets would be [-0.5, 0.4375]. - 6
-
The point size ULP is determined by
pointSizeGranularity
. If thepointSizeGranularity
is 0.125, the range of supported point sizes must be at least [1.0, 63.875]. - 7
-
The line width ULP is determined by
lineWidthGranularity
. If thelineWidthGranularity
is 0.0625, the range of supported line widths must be at least [1.0, 7.9375]. - 8
-
The minimum
maxDescriptorSet*
limit is n times the corresponding specification minimummaxPerStageDescriptor*
limit, where n is the number of shader stages supported by the VkPhysicalDevice. If all shader stages are supported, n = 6 (vertex, tessellation control, tessellation evaluation, geometry, fragment, compute). - 9
-
The
UpdateAfterBind
descriptor limits must each be greater than or equal to the correspondingnon
-UpdateAfterBind limit.
39.2. Additional Multisampling Capabilities
In addition to the minimum capabilities described for (Limits) above, implementations may support additional multisampling capabilities specific to a particular sample count.
To query additional sample count specific multisampling capabilities, call:
// Provided by VK_EXT_sample_locations
void vkGetPhysicalDeviceMultisamplePropertiesEXT(
VkPhysicalDevice physicalDevice,
VkSampleCountFlagBits samples,
VkMultisamplePropertiesEXT* pMultisampleProperties);
-
physicalDevice
is the physical device from which to query the additional multisampling capabilities. -
samples
is the sample count to query the capabilities for. -
pMultisampleProperties
is a pointer to a VkMultisamplePropertiesEXT structure in which information about the additional multisampling capabilities specific to the sample count is returned.
The VkMultisamplePropertiesEXT
structure is defined as
// Provided by VK_EXT_sample_locations
typedef struct VkMultisamplePropertiesEXT {
VkStructureType sType;
void* pNext;
VkExtent2D maxSampleLocationGridSize;
} VkMultisamplePropertiesEXT;
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxSampleLocationGridSize
is the maximum size of the pixel grid in which sample locations can vary.
If the sample count for which additional multisampling capabilities are
requested using vkGetPhysicalDeviceMultisamplePropertiesEXT
is set
in VkPhysicalDeviceSampleLocationsPropertiesEXT
::
sampleLocationSampleCounts
the
width
and height
members of
VkMultisamplePropertiesEXT
::maxSampleLocationGridSize
must be
greater than or equal to the corresponding members of
VkPhysicalDeviceSampleLocationsPropertiesEXT
::
maxSampleLocationGridSize
,
respectively, otherwise both members must be 0
.
The VkPhysicalDeviceCustomBorderColorPropertiesEXT
structure is
defined as:
// Provided by VK_EXT_custom_border_color
typedef struct VkPhysicalDeviceCustomBorderColorPropertiesEXT {
VkStructureType sType;
void* pNext;
uint32_t maxCustomBorderColorSamplers;
} VkPhysicalDeviceCustomBorderColorPropertiesEXT;
The members of the VkPhysicalDeviceCustomBorderColorPropertiesEXT
structure describe the following features: