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,
VK_COPY_ACCELERATION_STRUCTURE_MODE_SERIALIZE_KHR = 2,
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;
or the equivalent
// Provided by VK_NV_ray_tracing
typedef VkCopyAccelerationStructureModeKHR VkCopyAccelerationStructureModeNV;
Description
-
VK_COPY_ACCELERATION_STRUCTURE_MODE_CLONE_KHRcreates a direct copy of the acceleration structure specified insrcinto 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_KHRcreates a more compact version of an acceleration structuresrcintodst. The acceleration structuredstmust have been created with a size at least as large as that returned by 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_KHRserializes the acceleration structure to a semi-opaque format which can be reloaded on a compatible implementation. -
VK_COPY_ACCELERATION_STRUCTURE_MODE_DESERIALIZE_KHRdeserializes 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.