C Specification
Bits which can be set in VkAccelerationStructureInfoNV::flags,
specifying additional parameters for acceleration structure builds, are:
typedef enum VkBuildAccelerationStructureFlagBitsNV {
VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_UPDATE_BIT_NV = 0x00000001,
VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_COMPACTION_BIT_NV = 0x00000002,
VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_TRACE_BIT_NV = 0x00000004,
VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_BUILD_BIT_NV = 0x00000008,
VK_BUILD_ACCELERATION_STRUCTURE_LOW_MEMORY_BIT_NV = 0x00000010,
VK_BUILD_ACCELERATION_STRUCTURE_FLAG_BITS_MAX_ENUM_NV = 0x7FFFFFFF
} VkBuildAccelerationStructureFlagBitsNV;
Description
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VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_UPDATE_BIT_NVindicates that the specified acceleration structure can be updated withupdateofVK_TRUEin vkCmdBuildAccelerationStructureNV. -
VK_BUILD_ACCELERATION_STRUCTURE_ALLOW_COMPACTION_BIT_NVindicates that the specified acceleration structure can act as the source for vkCmdCopyAccelerationStructureNV withmodeofVK_COPY_ACCELERATION_STRUCTURE_MODE_COMPACT_NVto produce a compacted acceleration structure. -
VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_TRACE_BIT_NVindicates that the given acceleration structure build should prioritize trace performance over build time. -
VK_BUILD_ACCELERATION_STRUCTURE_PREFER_FAST_BUILD_BIT_NVindicates that the given acceleration structure build should prioritize build time over trace performance. -
VK_BUILD_ACCELERATION_STRUCTURE_LOW_MEMORY_BIT_NVindicates that this acceleration structure should minimize the size of the scratch memory and the final result build, potentially at the expense of build time or trace performance.
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Note
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See Also
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) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.