C Specification

The VkPipelineShaderStageCreateInfo structure is defined as:

typedef struct VkPipelineShaderStageCreateInfo {
    VkStructureType                     sType;
    const void*                         pNext;
    VkPipelineShaderStageCreateFlags    flags;
    VkShaderStageFlagBits               stage;
    VkShaderModule                      module;
    const char*                         pName;
    const VkSpecializationInfo*         pSpecializationInfo;
} VkPipelineShaderStageCreateInfo;

Members

  • sType is the type of this structure.

  • pNext is NULL or a pointer to an extension-specific structure.

  • flags is a bitmask of VkPipelineShaderStageCreateFlagBits specifying how the pipeline shader stage will be generated.

  • stage is a VkShaderStageFlagBits value specifying a single pipeline stage.

  • module is a VkShaderModule object containing the shader for this stage.

  • pName is a pointer to a null-terminated UTF-8 string specifying the entry point name of the shader for this stage.

  • pSpecializationInfo is a pointer to a VkSpecializationInfo structure, as described in Specialization Constants, or NULL.

Description

Valid Usage

  • If the geometry shaders feature is not enabled, stage must not be VK_SHADER_STAGE_GEOMETRY_BIT

  • If the tessellation shaders feature is not enabled, stage must not be VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT or VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT

  • If the mesh shader feature is not enabled, stage must not be VK_SHADER_STAGE_MESH_BIT_NV

  • If the task shader feature is not enabled, stage must not be VK_SHADER_STAGE_TASK_BIT_NV

  • stage must not be VK_SHADER_STAGE_ALL_GRAPHICS, or VK_SHADER_STAGE_ALL

  • pName must be the name of an OpEntryPoint in module with an execution model that matches stage

  • If the identified entry point includes any variable in its interface that is declared with the ClipDistance BuiltIn decoration, that variable must not have an array size greater than VkPhysicalDeviceLimits::maxClipDistances

  • If the identified entry point includes any variable in its interface that is declared with the CullDistance BuiltIn decoration, that variable must not have an array size greater than VkPhysicalDeviceLimits::maxCullDistances

  • If the identified entry point includes any variables in its interface that are declared with the ClipDistance or CullDistance BuiltIn decoration, those variables must not have array sizes which sum to more than VkPhysicalDeviceLimits::maxCombinedClipAndCullDistances

  • If the identified entry point includes any variable in its interface that is declared with the SampleMask BuiltIn decoration, that variable must not have an array size greater than VkPhysicalDeviceLimits::maxSampleMaskWords

  • If stage is VK_SHADER_STAGE_VERTEX_BIT, the identified entry point must not include any input variable in its interface that is decorated with CullDistance

  • If stage is VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT or VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT, and the identified entry point has an OpExecutionMode instruction that specifies a patch size with OutputVertices, the patch size must be greater than 0 and less than or equal to VkPhysicalDeviceLimits::maxTessellationPatchSize

  • If stage is VK_SHADER_STAGE_GEOMETRY_BIT, the identified entry point must have an OpExecutionMode instruction that specifies a maximum output vertex count that is greater than 0 and less than or equal to VkPhysicalDeviceLimits::maxGeometryOutputVertices

  • If stage is VK_SHADER_STAGE_GEOMETRY_BIT, the identified entry point must have an OpExecutionMode instruction that specifies an invocation count that is greater than 0 and less than or equal to VkPhysicalDeviceLimits::maxGeometryShaderInvocations

  • If stage is a vertex processing stage, and the identified entry point writes to Layer for any primitive, it must write the same value to Layer for all vertices of a given primitive

  • If stage is a vertex processing stage, and the identified entry point writes to ViewportIndex for any primitive, it must write the same value to ViewportIndex for all vertices of a given primitive

  • If stage is VK_SHADER_STAGE_FRAGMENT_BIT, the identified entry point must not include any output variables in its interface decorated with CullDistance

  • If stage is VK_SHADER_STAGE_FRAGMENT_BIT, and the identified entry point writes to FragDepth in any execution path, it must write to FragDepth in all execution paths

  • If stage is VK_SHADER_STAGE_FRAGMENT_BIT, and the identified entry point writes to FragStencilRefEXT in any execution path, it must write to FragStencilRefEXT in all execution paths

  • If stage is VK_SHADER_STAGE_MESH_BIT_NV, the identified entry point must have an OpExecutionMode instruction that specifies a maximum output vertex count, OutputVertices, that is greater than 0 and less than or equal to VkPhysicalDeviceMeshShaderPropertiesNV::maxMeshOutputVertices.

  • If stage is VK_SHADER_STAGE_MESH_BIT_NV, the identified entry point must have an OpExecutionMode instruction that specifies a maximum output primitive count, OutputPrimitivesNV, that is greater than 0 and less than or equal to VkPhysicalDeviceMeshShaderPropertiesNV::maxMeshOutputPrimitives.

  • If flags has the VK_PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT flag set, the subgroupSizeControl feature must be enabled.

  • If flags has the VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT flag set, the computeFullSubgroups feature must be enabled.

  • If a VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT structure is included in the pNext chain, flags must not have the VK_PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT flag set.

  • If a VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT structure is included in the pNext chain, the subgroupSizeControl feature must be enabled, and stage must be a valid bit specified in requiredSubgroupSizeStages.

  • If a VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT structure is included in the pNext chain and stage is VK_SHADER_STAGE_COMPUTE_BIT, the local workgroup size of the shader must be less than or equal to the product of VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT::requiredSubgroupSize and maxComputeWorkgroupSubgroups.

  • If a VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT structure is included in the pNext chain, and flags has the VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT flag set, the local workgroup size in the X dimension of the pipeline must be a multiple of VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT::requiredSubgroupSize.

  • If flags has both the VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT and VK_PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT flags set, the local workgroup size in the X dimension of the pipeline must be a multiple of maxSubgroupSize.

  • If flags has the VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT_EXT flag set and flags does not have the VK_PIPELINE_SHADER_STAGE_CREATE_ALLOW_VARYING_SUBGROUP_SIZE_BIT_EXT flag set and no VkPipelineShaderStageRequiredSubgroupSizeCreateInfoEXT structure is included in the pNext chain, the local workgroup size in the X dimension of the pipeline must be a multiple of subgroupSize.

Valid Usage (Implicit)

See Also

VkComputePipelineCreateInfo, VkGraphicsPipelineCreateInfo, VkPipelineShaderStageCreateFlags, VkRayTracingPipelineCreateInfoNV, VkShaderModule, VkShaderStageFlagBits, VkSpecializationInfo, VkStructureType

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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.