C Specification

The VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR structure is defined as:

// Provided by VK_KHR_ray_tracing_maintenance1
typedef struct VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR {
    VkStructureType    sType;
    void*              pNext;
    VkBool32           rayTracingMaintenance1;
    VkBool32           rayTracingPipelineTraceRaysIndirect2;
} VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR;

Members

This structure describes the following features:

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • rayTracingMaintenance1 indicates that the implementation supports the following:

    • The CullMaskKHR SPIR-V builtin using the SPV_KHR_ray_cull_mask SPIR-V extension.

    • Additional acceleration structure property queries: VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SERIALIZATION_BOTTOM_LEVEL_POINTERS_KHR and VK_QUERY_TYPE_ACCELERATION_STRUCTURE_SIZE_KHR.

    • A new access flag VK_ACCESS_2_SHADER_BINDING_TABLE_READ_BIT_KHR.

    • A new pipeline stage flag bit VK_PIPELINE_STAGE_2_ACCELERATION_STRUCTURE_COPY_BIT_KHR

  • rayTracingPipelineTraceRaysIndirect2 indicates whether the implementation supports the extended indirect ray tracing command vkCmdTraceRaysIndirect2KHR.

Description

If the VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR structure is included in the pNext chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR can also be used in the pNext chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

  • VUID-VkPhysicalDeviceRayTracingMaintenance1FeaturesKHR-sType-sType
    sType must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_RAY_TRACING_MAINTENANCE_1_FEATURES_KHR

See Also

VK_KHR_ray_tracing_maintenance1, VkBool32, 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0