C Specification
Possible values of mode specifying additional operations to perform
during the copy, are:
// Provided by VK_KHR_acceleration_structure
typedef enum VkCopyAccelerationStructureModeKHR {
VK_COPY_ACCELERATION_STRUCTURE_MODE_CLONE_KHR = 0,
VK_COPY_ACCELERATION_STRUCTURE_MODE_COMPACT_KHR = 1,
// Provided by VK_KHR_acceleration_structure
VK_COPY_ACCELERATION_STRUCTURE_MODE_SERIALIZE_KHR = 2,
// Provided by VK_KHR_acceleration_structure
VK_COPY_ACCELERATION_STRUCTURE_MODE_DESERIALIZE_KHR = 3,
// Provided by VK_NV_ray_tracing
VK_COPY_ACCELERATION_STRUCTURE_MODE_CLONE_NV = VK_COPY_ACCELERATION_STRUCTURE_MODE_CLONE_KHR,
// Provided by VK_NV_ray_tracing
VK_COPY_ACCELERATION_STRUCTURE_MODE_COMPACT_NV = VK_COPY_ACCELERATION_STRUCTURE_MODE_COMPACT_KHR,
} VkCopyAccelerationStructureModeKHR;// Provided by VK_NV_ray_tracing
// Equivalent to VkCopyAccelerationStructureModeKHR
typedef VkCopyAccelerationStructureModeKHR VkCopyAccelerationStructureModeNV;Description
-
VK_COPY_ACCELERATION_STRUCTURE_MODE_CLONE_KHR creates a direct copy of the acceleration structure specified in
srcinto the one specified bydst. Thedstacceleration structure must have been created with the same parameters assrc. Ifsrccontains references to other acceleration structures,dstwill reference the same acceleration structures. -
VK_COPY_ACCELERATION_STRUCTURE_MODE_COMPACT_KHR creates a more compact version of an acceleration structure
srcintodst. The acceleration structuredstmust have been created with a size at least as large as that returned by vkCmdWriteAccelerationStructuresPropertiesNV , vkCmdWriteAccelerationStructuresPropertiesKHR, or vkWriteAccelerationStructuresPropertiesKHR after the build of the acceleration structure specified bysrc. Ifsrccontains references to other acceleration structures,dstwill reference the same acceleration structures. -
VK_COPY_ACCELERATION_STRUCTURE_MODE_SERIALIZE_KHR serializes the acceleration structure to a semi-opaque format which can be reloaded on a compatible implementation.
-
VK_COPY_ACCELERATION_STRUCTURE_MODE_DESERIALIZE_KHR deserializes the semi-opaque serialization format in the buffer to the acceleration structure.
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.