C Specification
The VkRayTracingPipelineInterfaceCreateInfoKHR
structure is defined
as:
// Provided by VK_KHR_ray_tracing
typedef struct VkRayTracingPipelineInterfaceCreateInfoKHR {
VkStructureType sType;
const void* pNext;
uint32_t maxPayloadSize;
uint32_t maxAttributeSize;
uint32_t maxCallableSize;
} VkRayTracingPipelineInterfaceCreateInfoKHR;
Members
-
sType
is the type of this structure. -
pNext
isNULL
or a pointer to a structure extending this structure. -
maxPayloadSize
is the maximum payload size in bytes used by any shader in the pipeline. -
maxAttributeSize
is the maximum attribute structure size in bytes used by any shader in the pipeline. -
maxCallableSize
is the maximum callable data size in bytes used by any shader in the pipeline.
Description
maxPayloadSize
is calculated as the maximum number of bytes used by
any block declared in the RayPayloadKHR
or IncomingRayPayloadKHR
storage classes.
maxAttributeSize
is calculated as the maximum number of bytes used by
any block declared in the HitAttributeKHR
storage class.
maxCallableSize
is calculated as the maximum number of bytes used by
any block declred in the CallableDataKHR
or
IncomingCallableDataKHR
.
As variables in these storage classes do not have explicit offsets, the size
should be calculated as if each variable has a
scalar alignment equal to the largest
scalar alignment of any of the block’s members.
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.