VkPhysicalDeviceFeatures(3)

# VkPhysicalDeviceFeatures(3) Manual Page

## Name

VkPhysicalDeviceFeatures - Structure describing the fine-grained features that can be supported by an implementation

## C Specification

The `VkPhysicalDeviceFeatures` structure is defined as:

    // Provided by VK_VERSION_1_0
    typedef struct VkPhysicalDeviceFeatures {
        VkBool32    robustBufferAccess;
        VkBool32    fullDrawIndexUint32;
        VkBool32    imageCubeArray;
        VkBool32    independentBlend;
        VkBool32    geometryShader;
        VkBool32    tessellationShader;
        VkBool32    sampleRateShading;
        VkBool32    dualSrcBlend;
        VkBool32    logicOp;
        VkBool32    multiDrawIndirect;
        VkBool32    drawIndirectFirstInstance;
        VkBool32    depthClamp;
        VkBool32    depthBiasClamp;
        VkBool32    fillModeNonSolid;
        VkBool32    depthBounds;
        VkBool32    wideLines;
        VkBool32    largePoints;
        VkBool32    alphaToOne;
        VkBool32    multiViewport;
        VkBool32    samplerAnisotropy;
        VkBool32    textureCompressionETC2;
        VkBool32    textureCompressionASTC_LDR;
        VkBool32    textureCompressionBC;
        VkBool32    occlusionQueryPrecise;
        VkBool32    pipelineStatisticsQuery;
        VkBool32    vertexPipelineStoresAndAtomics;
        VkBool32    fragmentStoresAndAtomics;
        VkBool32    shaderTessellationAndGeometryPointSize;
        VkBool32    shaderImageGatherExtended;
        VkBool32    shaderStorageImageExtendedFormats;
        VkBool32    shaderStorageImageMultisample;
        VkBool32    shaderStorageImageReadWithoutFormat;
        VkBool32    shaderStorageImageWriteWithoutFormat;
        VkBool32    shaderUniformBufferArrayDynamicIndexing;
        VkBool32    shaderSampledImageArrayDynamicIndexing;
        VkBool32    shaderStorageBufferArrayDynamicIndexing;
        VkBool32    shaderStorageImageArrayDynamicIndexing;
        VkBool32    shaderClipDistance;
        VkBool32    shaderCullDistance;
        VkBool32    shaderFloat64;
        VkBool32    shaderInt64;
        VkBool32    shaderInt16;
        VkBool32    shaderResourceResidency;
        VkBool32    shaderResourceMinLod;
        VkBool32    sparseBinding;
        VkBool32    sparseResidencyBuffer;
        VkBool32    sparseResidencyImage2D;
        VkBool32    sparseResidencyImage3D;
        VkBool32    sparseResidency2Samples;
        VkBool32    sparseResidency4Samples;
        VkBool32    sparseResidency8Samples;
        VkBool32    sparseResidency16Samples;
        VkBool32    sparseResidencyAliased;
        VkBool32    variableMultisampleRate;
        VkBool32    inheritedQueries;
    } VkPhysicalDeviceFeatures;

## Members

This structure describes the following features:

- `robustBufferAccess` enables https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#shaders-robust-buffer-access guarantees for shader buffer accesses.

- `fullDrawIndexUint32` specifies the full 32-bit range of indices is supported for indexed draw calls when using a VkIndexType of VK_INDEX_TYPE_UINT32. `maxDrawIndexedIndexValue` is the maximum index value that may be used (aside from the primitive restart index, which is always 232-1 when the VkIndexType is VK_INDEX_TYPE_UINT32). If this feature is supported, `maxDrawIndexedIndexValue` must be 232-1; otherwise it must be no smaller than 224-1. See `maxDrawIndexedIndexValue`.

- `imageCubeArray` specifies whether image views with a VkImageViewType of VK_IMAGE_VIEW_TYPE_CUBE_ARRAY can be created, and that the corresponding `SampledCubeArray` and `ImageCubeArray` SPIR-V capabilities can be used in shader code.

- `independentBlend` specifies whether the `VkPipelineColorBlendAttachmentState` settings are controlled independently per-attachment. If this feature is not enabled, the `VkPipelineColorBlendAttachmentState` settings for all color attachments must be identical. Otherwise, a different `VkPipelineColorBlendAttachmentState` can be provided for each bound color attachment.

- `geometryShader` specifies whether geometry shaders are supported. If this feature is not enabled, the VK_SHADER_STAGE_GEOMETRY_BIT and VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT enum values must not be used. This also specifies whether shader modules can declare the `Geometry` capability.

- `tessellationShader` specifies whether tessellation control and evaluation shaders are supported. If this feature is not enabled, the VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT, VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, VK_PIPELINE_STAGE_TESSELLATION_CONTROL_SHADER_BIT, VK_PIPELINE_STAGE_TESSELLATION_EVALUATION_SHADER_BIT, and VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_STATE_CREATE_INFO enum values must not be used. This also specifies whether shader modules can declare the `Tessellation` capability.

- `sampleRateShading` specifies whether Sample Shading and multisample interpolation are supported. If this feature is not enabled, the `sampleShadingEnable` member of the VkPipelineMultisampleStateCreateInfo structure must be VK_FALSE and the `minSampleShading` member is ignored. This also specifies whether shader modules can declare the `SampleRateShading` capability.

- `dualSrcBlend` specifies whether blend operations which take two sources are supported. If this feature is not enabled, the VK_BLEND_FACTOR_SRC1_COLOR, VK_BLEND_FACTOR_ONE_MINUS_SRC1_COLOR, VK_BLEND_FACTOR_SRC1_ALPHA, and VK_BLEND_FACTOR_ONE_MINUS_SRC1_ALPHA enum values must not be used as source or destination blending factors. See https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#framebuffer-dsb.

- `logicOp` specifies whether logic operations are supported. If this feature is not enabled, the `logicOpEnable` member of the VkPipelineColorBlendStateCreateInfo structure must be VK_FALSE, and the `logicOp` member is ignored.

- `multiDrawIndirect` specifies whether multiple draw indirect is supported. If this feature is not enabled, the `drawCount` parameter to the vkCmdDrawIndirect and vkCmdDrawIndexedIndirect commands must be 0 or 1. The `maxDrawIndirectCount` member of the `VkPhysicalDeviceLimits` structure must also be 1 if this feature is not supported. See `maxDrawIndirectCount`.

- `drawIndirectFirstInstance` specifies whether indirect drawing calls support the `firstInstance` parameter. If this feature is not enabled, the `firstInstance` member of all `VkDrawIndirectCommand` and `VkDrawIndexedIndirectCommand` structures that are provided to the vkCmdDrawIndirect and vkCmdDrawIndexedIndirect commands must be 0.

- `depthClamp` specifies whether depth clamping is supported. If this feature is not enabled, the `depthClampEnable` member of the VkPipelineRasterizationStateCreateInfo structure must be VK_FALSE. Otherwise, setting `depthClampEnable` to VK_TRUE will enable depth clamping.

- `depthBiasClamp` specifies whether depth bias clamping is supported. If this feature is not enabled, the `depthBiasClamp` member of the VkPipelineRasterizationStateCreateInfo structure must be 0.0 unless the VK_DYNAMIC_STATE_DEPTH_BIAS dynamic state is enabled, in which case the `depthBiasClamp` parameter to vkCmdSetDepthBias must be 0.0.

- `fillModeNonSolid` specifies whether point and wireframe fill modes are supported. If this feature is not enabled, the VK_POLYGON_MODE_POINT and VK_POLYGON_MODE_LINE enum values must not be used.

- `depthBounds` specifies whether depth bounds tests are supported. If this feature is not enabled, the `depthBoundsTestEnable` member of the VkPipelineDepthStencilStateCreateInfo structure must be VK_FALSE unless the VK_DYNAMIC_STATE_DEPTH_BOUNDS_TEST_ENABLE dynamic state is enabled, in which case the `depthBoundsTestEnable` parameter to vkCmdSetDepthBoundsTestEnable must be VK_FALSE. When `depthBoundsTestEnable` is VK_FALSE, the `minDepthBounds` and `maxDepthBounds` members of the VkPipelineDepthStencilStateCreateInfo structure are ignored.

- `wideLines` specifies whether lines with width other than 1.0 are supported. If this feature is not enabled, the `lineWidth` member of the VkPipelineRasterizationStateCreateInfo structure must be 1.0 unless the VK_DYNAMIC_STATE_LINE_WIDTH dynamic state is enabled, in which case the `lineWidth` parameter to vkCmdSetLineWidth must be 1.0. When this feature is supported, the range and granularity of supported line widths are indicated by the `lineWidthRange` and `lineWidthGranularity` members of the `VkPhysicalDeviceLimits` structure, respectively.

- `largePoints` specifies whether points with size greater than 1.0 are supported. If this feature is not enabled, only a point size of 1.0 written by a shader is supported. The range and granularity of supported point sizes are indicated by the `pointSizeRange` and `pointSizeGranularity` members of the `VkPhysicalDeviceLimits` structure, respectively.

- `alphaToOne` specifies whether the implementation is able to replace the alpha value of the fragment shader color output in the Multisample Coverage fragment operation. If this feature is not enabled, then the `alphaToOneEnable` member of the VkPipelineMultisampleStateCreateInfo structure must be VK_FALSE. Otherwise setting `alphaToOneEnable` to VK_TRUE will enable alpha-to-one behavior.

- `multiViewport` specifies whether more than one viewport is supported. If this feature is not enabled:

  - The `viewportCount` and `scissorCount` members of the VkPipelineViewportStateCreateInfo structure must be 1.

  - The `firstViewport` and `viewportCount` parameters to the vkCmdSetViewport command must be 0 and 1, respectively.

  - The `firstScissor` and `scissorCount` parameters to the vkCmdSetScissor command must be 0 and 1, respectively.

  - The `exclusiveScissorCount` member of the VkPipelineViewportExclusiveScissorStateCreateInfoNV structure must be 0 or 1.

  - The `firstExclusiveScissor` and `exclusiveScissorCount` parameters to the vkCmdSetExclusiveScissorNV command must be 0 and 1, respectively.

- `samplerAnisotropy` specifies whether anisotropic filtering is supported. If this feature is not enabled, the `anisotropyEnable` member of the VkSamplerCreateInfo structure must be VK_FALSE.

- `textureCompressionETC2` specifies whether all of the ETC2 and EAC compressed texture formats are supported. If this feature is enabled, then the VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT, VK_FORMAT_FEATURE_BLIT_SRC_BIT and VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT features must be supported in `optimalTilingFeatures` for the following formats:

  - VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK

  - VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK

  - VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK

  - VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK

  - VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK

  - VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK

  - VK_FORMAT_EAC_R11_UNORM_BLOCK

  - VK_FORMAT_EAC_R11_SNORM_BLOCK

  - VK_FORMAT_EAC_R11G11_UNORM_BLOCK

  - VK_FORMAT_EAC_R11G11_SNORM_BLOCK

    To query for additional properties, or if the feature is not enabled, vkGetPhysicalDeviceFormatProperties and vkGetPhysicalDeviceImageFormatProperties can be used to check for supported properties of individual formats as normal.

## Description

- `textureCompressionASTC_LDR` specifies whether all of the ASTC LDR compressed texture formats are supported. If this feature is enabled, then the VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT, VK_FORMAT_FEATURE_BLIT_SRC_BIT and VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT features must be supported in `optimalTilingFeatures` for the following formats:

  - VK_FORMAT_ASTC_4x4_UNORM_BLOCK

  - VK_FORMAT_ASTC_4x4_SRGB_BLOCK

  - VK_FORMAT_ASTC_5x4_UNORM_BLOCK

  - VK_FORMAT_ASTC_5x4_SRGB_BLOCK

  - VK_FORMAT_ASTC_5x5_UNORM_BLOCK

  - VK_FORMAT_ASTC_5x5_SRGB_BLOCK

  - VK_FORMAT_ASTC_6x5_UNORM_BLOCK

  - VK_FORMAT_ASTC_6x5_SRGB_BLOCK

  - VK_FORMAT_ASTC_6x6_UNORM_BLOCK

  - VK_FORMAT_ASTC_6x6_SRGB_BLOCK

  - VK_FORMAT_ASTC_8x5_UNORM_BLOCK

  - VK_FORMAT_ASTC_8x5_SRGB_BLOCK

  - VK_FORMAT_ASTC_8x6_UNORM_BLOCK

  - VK_FORMAT_ASTC_8x6_SRGB_BLOCK

  - VK_FORMAT_ASTC_8x8_UNORM_BLOCK

  - VK_FORMAT_ASTC_8x8_SRGB_BLOCK

  - VK_FORMAT_ASTC_10x5_UNORM_BLOCK

  - VK_FORMAT_ASTC_10x5_SRGB_BLOCK

  - VK_FORMAT_ASTC_10x6_UNORM_BLOCK

  - VK_FORMAT_ASTC_10x6_SRGB_BLOCK

  - VK_FORMAT_ASTC_10x8_UNORM_BLOCK

  - VK_FORMAT_ASTC_10x8_SRGB_BLOCK

  - VK_FORMAT_ASTC_10x10_UNORM_BLOCK

  - VK_FORMAT_ASTC_10x10_SRGB_BLOCK

  - VK_FORMAT_ASTC_12x10_UNORM_BLOCK

  - VK_FORMAT_ASTC_12x10_SRGB_BLOCK

  - VK_FORMAT_ASTC_12x12_UNORM_BLOCK

  - VK_FORMAT_ASTC_12x12_SRGB_BLOCK

    To query for additional properties, or if the feature is not enabled, vkGetPhysicalDeviceFormatProperties and vkGetPhysicalDeviceImageFormatProperties can be used to check for supported properties of individual formats as normal.

- `textureCompressionBC` specifies whether all of the BC compressed texture formats are supported. If this feature is enabled, then the VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT, VK_FORMAT_FEATURE_BLIT_SRC_BIT and VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT features must be supported in `optimalTilingFeatures` for the following formats:

  - VK_FORMAT_BC1_RGB_UNORM_BLOCK

  - VK_FORMAT_BC1_RGB_SRGB_BLOCK

  - VK_FORMAT_BC1_RGBA_UNORM_BLOCK

  - VK_FORMAT_BC1_RGBA_SRGB_BLOCK

  - VK_FORMAT_BC2_UNORM_BLOCK

  - VK_FORMAT_BC2_SRGB_BLOCK

  - VK_FORMAT_BC3_UNORM_BLOCK

  - VK_FORMAT_BC3_SRGB_BLOCK

  - VK_FORMAT_BC4_UNORM_BLOCK

  - VK_FORMAT_BC4_SNORM_BLOCK

  - VK_FORMAT_BC5_UNORM_BLOCK

  - VK_FORMAT_BC5_SNORM_BLOCK

  - VK_FORMAT_BC6H_UFLOAT_BLOCK

  - VK_FORMAT_BC6H_SFLOAT_BLOCK

  - VK_FORMAT_BC7_UNORM_BLOCK

  - VK_FORMAT_BC7_SRGB_BLOCK

    To query for additional properties, or if the feature is not enabled, vkGetPhysicalDeviceFormatProperties and vkGetPhysicalDeviceImageFormatProperties can be used to check for supported properties of individual formats as normal.

- `occlusionQueryPrecise` specifies whether occlusion queries returning actual sample counts are supported. Occlusion queries are created in a `VkQueryPool` by specifying the `queryType` of VK_QUERY_TYPE_OCCLUSION in the VkQueryPoolCreateInfo structure which is passed to vkCreateQueryPool. If this feature is enabled, queries of this type can enable VK_QUERY_CONTROL_PRECISE_BIT in the `flags` parameter to vkCmdBeginQuery. If this feature is not supported, the implementation supports only boolean occlusion queries. When any samples are passed, boolean queries will return a non-zero result value, otherwise a result value of zero is returned. When this feature is enabled and VK_QUERY_CONTROL_PRECISE_BIT is set, occlusion queries will report the actual number of samples passed.

- `pipelineStatisticsQuery` specifies whether the pipeline statistics queries are supported. If this feature is not enabled, queries of type VK_QUERY_TYPE_PIPELINE_STATISTICS cannot be created, and none of the VkQueryPipelineStatisticFlagBits bits can be set in the `pipelineStatistics` member of the VkQueryPoolCreateInfo structure.

- `vertexPipelineStoresAndAtomics` specifies whether storage buffers and images support stores and atomic operations in the vertex, tessellation, and geometry shader stages. If this feature is not enabled, all storage image, storage texel buffer, and storage buffer variables used by these stages in shader modules must be decorated with the `NonWritable` decoration (or the `readonly` memory qualifier in GLSL).

- `fragmentStoresAndAtomics` specifies whether storage buffers and images support stores and atomic operations in the fragment shader stage. If this feature is not enabled, all storage image, storage texel buffer, and storage buffer variables used by the fragment stage in shader modules must be decorated with the `NonWritable` decoration (or the `readonly` memory qualifier in GLSL).

- `shaderTessellationAndGeometryPointSize` specifies whether the `PointSize` built-in decoration is available in the tessellation control, tessellation evaluation, and geometry shader stages. If this feature is not enabled, members decorated with the `PointSize` built-in decoration must not be read from or written to and all points written from a tessellation or geometry shader will have a size of 1.0. This also specifies whether shader modules can declare the `TessellationPointSize` capability for tessellation control and evaluation shaders, or if the shader modules can declare the `GeometryPointSize` capability for geometry shaders. An implementation supporting this feature must also support one or both of the `tessellationShader` or `geometryShader` features.

- `shaderImageGatherExtended` specifies whether the extended set of image gather instructions are available in shader code. If this feature is not enabled, the `OpImage*Gather` and `OpImageGatherQCOM` instructions do not support the `Offset` and `ConstOffsets` operands. The `OpImageGatherQCOM` instruction does not support the `ConstOffsets` operand regardless of the value of this feature. This also specifies whether shader modules can declare the `ImageGatherExtended` capability.

- `shaderStorageImageExtendedFormats` specifies whether all the “storage image extended formats” below are supported; if this feature is supported, then the VK_FORMAT_FEATURE_STORAGE_IMAGE_BIT must be supported in `optimalTilingFeatures` for the following formats:

  - VK_FORMAT_R16G16_SFLOAT

  - VK_FORMAT_B10G11R11_UFLOAT_PACK32

  - VK_FORMAT_R16_SFLOAT

  - VK_FORMAT_R16G16B16A16_UNORM

  - VK_FORMAT_A2B10G10R10_UNORM_PACK32

  - VK_FORMAT_R16G16_UNORM

  - VK_FORMAT_R8G8_UNORM

  - VK_FORMAT_R16_UNORM

  - VK_FORMAT_R8_UNORM

  - VK_FORMAT_R16G16B16A16_SNORM

  - VK_FORMAT_R16G16_SNORM

  - VK_FORMAT_R8G8_SNORM

  - VK_FORMAT_R16_SNORM

  - VK_FORMAT_R8_SNORM

  - VK_FORMAT_R16G16_SINT

  - VK_FORMAT_R8G8_SINT

  - VK_FORMAT_R16_SINT

  - VK_FORMAT_R8_SINT

  - VK_FORMAT_A2B10G10R10_UINT_PACK32

  - VK_FORMAT_R16G16_UINT

  - VK_FORMAT_R8G8_UINT

  - VK_FORMAT_R16_UINT

  - VK_FORMAT_R8_UINT

    Note | `shaderStorageImageExtendedFormats` feature only adds a guarantee of format support, which is specified for the whole physical device. Therefore enabling or disabling the feature via vkCreateDevice has no practical effect. To query for additional properties, or if the feature is not supported, vkGetPhysicalDeviceFormatProperties and vkGetPhysicalDeviceImageFormatProperties can be used to check for supported properties of individual formats, as usual rules allow. VK_FORMAT_R32G32_UINT, VK_FORMAT_R32G32_SINT, and VK_FORMAT_R32G32_SFLOAT from `StorageImageExtendedFormats` SPIR-V capability, are already covered by core Vulkan mandatory format support.

- `shaderStorageImageMultisample` specifies whether multisampled storage images are supported. If this feature is not enabled, images that are created with the VK_IMAGE_USAGE_STORAGE_BIT usage flag set must be created with `samples` equal to VK_SAMPLE_COUNT_1_BIT. This also specifies whether shader modules can declare the `StorageImageMultisample` and `ImageMSArray` capabilities.

- `shaderStorageImageReadWithoutFormat` specifies whether storage images and storage texel buffers require a format qualifier to be specified when reading. `shaderStorageImageReadWithoutFormat` applies only to formats listed in the storage without format list.

- `shaderStorageImageWriteWithoutFormat` specifies whether storage images and storage texel buffers require a format qualifier to be specified when writing. `shaderStorageImageWriteWithoutFormat` applies only to formats listed in the storage without format list.

- `shaderUniformBufferArrayDynamicIndexing` specifies whether arrays of uniform buffers can be indexed by integer expressions that are dynamically uniform within either the subgroup or the invocation group in shader code. If this feature is not enabled, resources with a descriptor type of VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER or VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC must be indexed only by constant integral expressions when aggregated into arrays in shader code. This also specifies whether shader modules can declare the `UniformBufferArrayDynamicIndexing` capability.

- `shaderSampledImageArrayDynamicIndexing` specifies whether arrays of samplers or sampled images can be indexed by integer expressions that are dynamically uniform within either the subgroup or the invocation group in shader code. If this feature is not enabled, resources with a descriptor type of VK_DESCRIPTOR_TYPE_SAMPLER, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, or VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE must be indexed only by constant integral expressions when aggregated into arrays in shader code. This also specifies whether shader modules can declare the `SampledImageArrayDynamicIndexing` capability.

- `shaderStorageBufferArrayDynamicIndexing` specifies whether arrays of storage buffers can be indexed by integer expressions that are dynamically uniform within either the subgroup or the invocation group in shader code. If this feature is not enabled, resources with a descriptor type of VK_DESCRIPTOR_TYPE_STORAGE_BUFFER or VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC must be indexed only by constant integral expressions when aggregated into arrays in shader code. This also specifies whether shader modules can declare the `StorageBufferArrayDynamicIndexing` capability.

- `shaderStorageImageArrayDynamicIndexing` specifies whether arrays of storage images can be indexed by integer expressions that are dynamically uniform within either the subgroup or the invocation group in shader code. If this feature is not enabled, resources with a descriptor type of VK_DESCRIPTOR_TYPE_STORAGE_IMAGE must be indexed only by constant integral expressions when aggregated into arrays in shader code. This also specifies whether shader modules can declare the `StorageImageArrayDynamicIndexing` capability.

- `shaderClipDistance` specifies whether clip distances are supported in shader code. If this feature is not enabled, any members decorated with the `ClipDistance` built-in decoration must not be read from or written to in shader modules. This also specifies whether shader modules can declare the `ClipDistance` capability.

- `shaderCullDistance` specifies whether cull distances are supported in shader code. If this feature is not enabled, any members decorated with the `CullDistance` built-in decoration must not be read from or written to in shader modules. This also specifies whether shader modules can declare the `CullDistance` capability.

- `shaderFloat64` specifies whether 64-bit floats (doubles) are supported in shader code. If this feature is not enabled, 64-bit floating-point types must not be used in shader code. This also specifies whether shader modules can declare the `Float64` capability. Declaring and using 64-bit floats is enabled for all storage classes that SPIR-V allows with the `Float64` capability.

- `shaderInt64` specifies whether 64-bit integers (signed and unsigned) are supported in shader code. If this feature is not enabled, 64-bit integer types must not be used in shader code. This also specifies whether shader modules can declare the `Int64` capability. Declaring and using 64-bit integers is enabled for all storage classes that SPIR-V allows with the `Int64` capability.

- `shaderInt16` specifies whether 16-bit integers (signed and unsigned) are supported in shader code. If this feature is not enabled, 16-bit integer types must not be used in shader code. This also specifies whether shader modules can declare the `Int16` capability. However, this only enables a subset of the storage classes that SPIR-V allows for the `Int16` SPIR-V capability: Declaring and using 16-bit integers in the `Private`, `Workgroup` (for non-Block variables), and `Function` storage classes is enabled, while declaring them in the interface storage classes (e.g., `UniformConstant`, `Uniform`, `StorageBuffer`, `Input`, `Output`, and `PushConstant`) is not enabled.

- `shaderResourceResidency` specifies whether image operations that return resource residency information are supported in shader code. If this feature is not enabled, the `OpImageSparse*` instructions must not be used in shader code. This also specifies whether shader modules can declare the `SparseResidency` capability. The feature requires at least one of the `sparseResidency*` features to be supported.

- `shaderResourceMinLod` specifies whether image operations specifying the minimum resource LOD are supported in shader code. If this feature is not enabled, the `MinLod` image operand must not be used in shader code. This also specifies whether shader modules can declare the `MinLod` capability.

- `sparseBinding` specifies whether resource memory can be managed at opaque sparse block level instead of at the object level. If this feature is not enabled, resource memory must be bound only on a per-object basis using the vkBindBufferMemory and vkBindImageMemory commands. In this case, buffers and images must not be created with VK_BUFFER_CREATE_SPARSE_BINDING_BIT and VK_IMAGE_CREATE_SPARSE_BINDING_BIT set in the `flags` member of the VkBufferCreateInfo and VkImageCreateInfo structures, respectively. Otherwise resource memory can be managed as described in Sparse Resource Features.

- `sparseResidencyBuffer` specifies whether the device can access partially resident buffers. If this feature is not enabled, buffers must not be created with VK_BUFFER_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkBufferCreateInfo structure.

- `sparseResidencyImage2D` specifies whether the device can access partially resident 2D images with 1 sample per pixel. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_2D and `samples` set to VK_SAMPLE_COUNT_1_BIT must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidencyImage3D` specifies whether the device can access partially resident 3D images. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_3D must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidency2Samples` specifies whether the physical device can access partially resident 2D images with 2 samples per pixel. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_2D and `samples` set to VK_SAMPLE_COUNT_2_BIT must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidency4Samples` specifies whether the physical device can access partially resident 2D images with 4 samples per pixel. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_2D and `samples` set to VK_SAMPLE_COUNT_4_BIT must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidency8Samples` specifies whether the physical device can access partially resident 2D images with 8 samples per pixel. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_2D and `samples` set to VK_SAMPLE_COUNT_8_BIT must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidency16Samples` specifies whether the physical device can access partially resident 2D images with 16 samples per pixel. If this feature is not enabled, images with an `imageType` of VK_IMAGE_TYPE_2D and `samples` set to VK_SAMPLE_COUNT_16_BIT must not be created with VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT set in the `flags` member of the VkImageCreateInfo structure.

- `sparseResidencyAliased` specifies whether the physical device can correctly access data aliased into multiple locations. If this feature is not enabled, the VK_BUFFER_CREATE_SPARSE_ALIASED_BIT and VK_IMAGE_CREATE_SPARSE_ALIASED_BIT enum values must not be used in `flags` members of the VkBufferCreateInfo and VkImageCreateInfo structures, respectively.

- `variableMultisampleRate` specifies whether all pipelines that will be bound to a command buffer during a subpass which uses no attachments must have the same value for VkPipelineMultisampleStateCreateInfo::`rasterizationSamples`. If set to VK_TRUE, the implementation supports variable multisample rates in a subpass which uses no attachments. If set to VK_FALSE, then all pipelines bound in such a subpass must have the same multisample rate. This has no effect in situations where a subpass uses any attachments.

- `inheritedQueries` specifies whether a secondary command buffer may be executed while a query is active.

## See Also

VK_VERSION_1_0, VkBool32, VkDeviceCreateInfo, VkPhysicalDeviceFeatures2, vkGetPhysicalDeviceFeatures

## Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0