C Specification
The VkAccelerationStructureBuildGeometryInfoKHR
structure is defined
as:
// Provided by VK_KHR_ray_tracing
typedef struct VkAccelerationStructureBuildGeometryInfoKHR {
VkStructureType sType;
const void* pNext;
VkAccelerationStructureTypeKHR type;
VkBuildAccelerationStructureFlagsKHR flags;
VkBool32 update;
VkAccelerationStructureKHR srcAccelerationStructure;
VkAccelerationStructureKHR dstAccelerationStructure;
VkBool32 geometryArrayOfPointers;
uint32_t geometryCount;
const VkAccelerationStructureGeometryKHR* const* ppGeometries;
VkDeviceOrHostAddressKHR scratchData;
} VkAccelerationStructureBuildGeometryInfoKHR;
Members
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
type
is a VkAccelerationStructureTypeKHR value specifying the type of acceleration structure being built. -
flags
is a bitmask of VkBuildAccelerationStructureFlagBitsKHR specifying additional parameters of the acceleration structure. -
update
specifies whether to updatedstAccelerationStructure
with the data insrcAccelerationStructure
or not. -
srcAccelerationStructure
points to an existing acceleration structure that is to be used to update thedst
acceleration structure whenupdate
isVK_TRUE
. -
dstAccelerationStructure
points to the target acceleration structure for the build. -
geometryArrayOfPointers
specifies whetherppGeometries
is used as a pointer to an array of pointers or a pointer to a pointer to an array. -
geometryCount
specifies the number of geometries that will be built intodstAccelerationStructure
. -
ppGeometries
is either a pointer to an array of pointers to VkAccelerationStructureGeometryKHR structures ifgeometryArrayOfPointers
isVK_TRUE
, or a pointer to a pointer to an array of VkAccelerationStructureGeometryKHR structures if it isVK_FALSE
. Each element of the array describes the data used to build each acceleration structure geometry. -
scratchData
is the device or host address to memory that will be used as scratch memory for the build.
Description
Note
Elements of
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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.