To create acceleration structures, call:
// Provided by VK_NV_ray_tracing VkResult vkCreateAccelerationStructureNV( VkDevice device, const VkAccelerationStructureCreateInfoNV* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkAccelerationStructureNV* pAccelerationStructure);
deviceis the logical device that creates the buffer object.
pCreateInfois a pointer to a VkAccelerationStructureCreateInfoNV structure containing parameters affecting creation of the acceleration structure.
pAllocatorcontrols host memory allocation as described in the Memory Allocation chapter.
pAccelerationStructureis a pointer to a VkAccelerationStructureNV handle in which the resulting acceleration structure object is returned.
Similarly to other objects in Vulkan, the acceleration structure creation
merely creates an object with a specific “shape” as specified by the
information in VkAccelerationStructureInfoNV and
Populating the data in the object after allocating and binding memory is
done with vkCmdBuildAccelerationStructureNV and
Acceleration structure creation uses the count and type information from the geometries, but does not use the data references in the structures.
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.