# VkTraceRaysIndirectCommand2KHR(3) Manual Page

## Name

VkTraceRaysIndirectCommand2KHR - Structure specifying the parameters of an indirect trace ray command with indirect shader binding tables

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## C Specification

The `VkTraceRaysIndirectCommand2KHR` structure is defined as:

    // Provided by VK_KHR_ray_tracing_maintenance1 with VK_KHR_ray_tracing_pipeline
    typedef struct VkTraceRaysIndirectCommand2KHR {
        VkDeviceAddress    raygenShaderRecordAddress;
        VkDeviceSize       raygenShaderRecordSize;
        VkDeviceAddress    missShaderBindingTableAddress;
        VkDeviceSize       missShaderBindingTableSize;
        VkDeviceSize       missShaderBindingTableStride;
        VkDeviceAddress    hitShaderBindingTableAddress;
        VkDeviceSize       hitShaderBindingTableSize;
        VkDeviceSize       hitShaderBindingTableStride;
        VkDeviceAddress    callableShaderBindingTableAddress;
        VkDeviceSize       callableShaderBindingTableSize;
        VkDeviceSize       callableShaderBindingTableStride;
        uint32_t           width;
        uint32_t           height;
        uint32_t           depth;
    } VkTraceRaysIndirectCommand2KHR;

## Members

- `raygenShaderRecordAddress` is a VkDeviceAddress of the ray generation shader binding table record used by this command.

- `raygenShaderRecordSize` is a VkDeviceSize number of bytes corresponding to the ray generation shader binding table record at base address `raygenShaderRecordAddress`.

- `missShaderBindingTableAddress` is a VkDeviceAddress of the first record in the miss shader binding table used by this command.

- `missShaderBindingTableSize` is a VkDeviceSize number of bytes corresponding to the total size of the miss shader binding table at `missShaderBindingTableAddress` that may be accessed by this command.

- `missShaderBindingTableStride` is a VkDeviceSize number of bytes between records of the miss shader binding table.

- `hitShaderBindingTableAddress` is a VkDeviceAddress of the first record in the hit shader binding table used by this command.

- `hitShaderBindingTableSize` is a VkDeviceSize number of bytes corresponding to the total size of the hit shader binding table at `hitShaderBindingTableAddress` that may be accessed by this command.

- `hitShaderBindingTableStride` is a VkDeviceSize number of bytes between records of the hit shader binding table.

- `callableShaderBindingTableAddress` is a VkDeviceAddress of the first record in the callable shader binding table used by this command.

- `callableShaderBindingTableSize` is a VkDeviceSize number of bytes corresponding to the total size of the callable shader binding table at `callableShaderBindingTableAddress` that may be accessed by this command.

- `callableShaderBindingTableStride` is a VkDeviceSize number of bytes between records of the callable shader binding table.

- `width` is the width of the ray trace query dimensions.

- `height` is height of the ray trace query dimensions.

- `depth` is depth of the ray trace query dimensions.

## Description

The members of `VkTraceRaysIndirectCommand2KHR` have the same meaning as the similarly named parameters of vkCmdTraceRaysKHR.

Indirect shader binding table buffer parameters must satisfy the same memory alignment and binding requirements as their counterparts in vkCmdTraceRaysIndirectKHR and vkCmdTraceRaysKHR.

Valid Usage

- VUID-VkTraceRaysIndirectCommand2KHR-pRayGenShaderBindingTable-03680
  If the buffer from which `raygenShaderRecordAddress` was queried is non-sparse then it must be bound completely and contiguously to a single `VkDeviceMemory` object

- VUID-VkTraceRaysIndirectCommand2KHR-pRayGenShaderBindingTable-03681
  The buffer from which the `raygenShaderRecordAddress` is queried must have been created with the `VK_BUFFER_USAGE_SHADER_BINDING_TABLE_BIT_KHR` usage flag

- VUID-VkTraceRaysIndirectCommand2KHR-pRayGenShaderBindingTable-03682
  `raygenShaderRecordAddress` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupBaseAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-pMissShaderBindingTable-03683
  If the buffer from which `missShaderBindingTableAddress` was queried is non-sparse then it must be bound completely and contiguously to a single `VkDeviceMemory` object

- VUID-VkTraceRaysIndirectCommand2KHR-pMissShaderBindingTable-03684
  The buffer from which the `missShaderBindingTableAddress` is queried must have been created with the `VK_BUFFER_USAGE_SHADER_BINDING_TABLE_BIT_KHR` usage flag

- VUID-VkTraceRaysIndirectCommand2KHR-pMissShaderBindingTable-03685
  `missShaderBindingTableAddress` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupBaseAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-03686
  `missShaderBindingTableStride` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupHandleAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-04029
  `missShaderBindingTableStride` must be less than or equal to `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`maxShaderGroupStride`

- VUID-VkTraceRaysIndirectCommand2KHR-pHitShaderBindingTable-03687
  If the buffer from which `hitShaderBindingTableAddress` was queried is non-sparse then it must be bound completely and contiguously to a single `VkDeviceMemory` object

- VUID-VkTraceRaysIndirectCommand2KHR-pHitShaderBindingTable-03688
  The buffer from which the `hitShaderBindingTableAddress` is queried must have been created with the `VK_BUFFER_USAGE_SHADER_BINDING_TABLE_BIT_KHR` usage flag

- VUID-VkTraceRaysIndirectCommand2KHR-pHitShaderBindingTable-03689
  `hitShaderBindingTableAddress` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupBaseAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-03690
  `hitShaderBindingTableStride` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupHandleAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-04035
  `hitShaderBindingTableStride` must be less than or equal to `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`maxShaderGroupStride`

- VUID-VkTraceRaysIndirectCommand2KHR-pCallableShaderBindingTable-03691
  If the buffer from which `callableShaderBindingTableAddress` was queried is non-sparse then it must be bound completely and contiguously to a single `VkDeviceMemory` object

- VUID-VkTraceRaysIndirectCommand2KHR-pCallableShaderBindingTable-03692
  The buffer from which the `callableShaderBindingTableAddress` is queried must have been created with the `VK_BUFFER_USAGE_SHADER_BINDING_TABLE_BIT_KHR` usage flag

- VUID-VkTraceRaysIndirectCommand2KHR-pCallableShaderBindingTable-03693
  `callableShaderBindingTableAddress` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupBaseAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-03694
  `callableShaderBindingTableStride` must be a multiple of `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`shaderGroupHandleAlignment`

- VUID-VkTraceRaysIndirectCommand2KHR-stride-04041
  `callableShaderBindingTableStride` must be less than or equal to `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`maxShaderGroupStride`

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03696
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_CLOSEST_HIT_SHADERS_BIT_KHR`, `hitShaderBindingTableAddress` must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03697
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_INTERSECTION_SHADERS_BIT_KHR`, `hitShaderBindingTableAddress` must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03511
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_MISS_SHADERS_BIT_KHR`, the shader group handle identified by `missShaderBindingTableAddress` must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03512
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_ANY_HIT_SHADERS_BIT_KHR`, entries in the table identified by `hitShaderBindingTableAddress` accessed as a result of this command in order to execute an any-hit shader must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03513
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_CLOSEST_HIT_SHADERS_BIT_KHR`, entries in the table identified by `hitShaderBindingTableAddress` accessed as a result of this command in order to execute a closest hit shader must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-flags-03514
  If the bound ray tracing pipeline was created with `flags` that included `VK_PIPELINE_CREATE_RAY_TRACING_NO_NULL_INTERSECTION_SHADERS_BIT_KHR`, entries in the table identified by `hitShaderBindingTableAddress` accessed as a result of this command in order to execute an intersection shader must not be zero

- VUID-VkTraceRaysIndirectCommand2KHR-pHitShaderBindingTable-04735
  Any non-zero hit shader group entries in the table identified by `hitShaderBindingTableAddress` accessed by this call from a geometry with a `geometryType` of `VK_GEOMETRY_TYPE_TRIANGLES_KHR` must have been created with `VK_RAY_TRACING_SHADER_GROUP_TYPE_TRIANGLES_HIT_GROUP_KHR`

- VUID-VkTraceRaysIndirectCommand2KHR-pHitShaderBindingTable-04736
  Any non-zero hit shader group entries in the table identified by `hitShaderBindingTableAddress` accessed by this call from a geometry with a `geometryType` of `VK_GEOMETRY_TYPE_AABBS_KHR` must have been created with `VK_RAY_TRACING_SHADER_GROUP_TYPE_PROCEDURAL_HIT_GROUP_KHR`

- VUID-VkTraceRaysIndirectCommand2KHR-width-03638
  `width` must be less than or equal to `VkPhysicalDeviceLimits`::`maxComputeWorkGroupCount`[0] × `VkPhysicalDeviceLimits`::`maxComputeWorkGroupSize`[0]

- VUID-VkTraceRaysIndirectCommand2KHR-height-03639
  `height` must be less than or equal to `VkPhysicalDeviceLimits`::`maxComputeWorkGroupCount`[1] × `VkPhysicalDeviceLimits`::`maxComputeWorkGroupSize`[1]

- VUID-VkTraceRaysIndirectCommand2KHR-depth-03640
  `depth` must be less than or equal to `VkPhysicalDeviceLimits`::`maxComputeWorkGroupCount`[2] × `VkPhysicalDeviceLimits`::`maxComputeWorkGroupSize`[2]

- VUID-VkTraceRaysIndirectCommand2KHR-width-03641
  `width` × `height` × `depth` must be less than or equal to `VkPhysicalDeviceRayTracingPipelinePropertiesKHR`::`maxRayDispatchInvocationCount`

## See Also

VK_KHR_ray_tracing_maintenance1, VK_KHR_ray_tracing_pipeline, VkDeviceAddress, VkDeviceSize

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0