RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout

manoula — Sat, 04 Mar 2023 11:19:19 GMT

Hi, I have a question concerning RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments:

For RTCRayHitN*, I can get rayn or hitn using

RTCRayN* RTCRayHitN_RayN(RTCRayHitN* rayhit, unsigned int N) { return (RTCRayN*)&((float*)rayhit)[0*N]; }

RTCHitN* RTCRayHitN_HitN(RTCRayHitN* rayhit, unsigned int N) { return (RTCHitN*)&((float*)rayhit)[12*N]; }

Will it give me the same result if I apply (RTCHitN*)&((float*)ray)[12*N] to RTCRayN* in RTCFilterFunctionNArguments?

struct RTCFilterFunctionNArguments
{
int* valid;
void* geometryUserPtr;
const struct RTCIntersectContext* context;
struct RTCRayN* ray;
struct RTCHitN* hit;
unsigned int N;
};

struct RTCIntersectFunctionNArguments
{
int* valid;
void* geometryUserPtr;
unsigned int primID;
struct RTCIntersectContext* context;
struct RTCRayHitN* rayhit;
unsigned int N;
unsigned int geomID;
};

Re: RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout

SvenW_Intel — Mon, 06 Mar 2023 06:16:33 GMT

No, you have to use the provided hit pointer provided in the RTCFilterFunctionNArguments.

Re: RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout

manoula — Mon, 06 Mar 2023 10:33:23 GMT

Thanks!

topic RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout in Intel® Embree Ray Tracing Kernels

RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout

Re: RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout

Re: RTCFilterFunctionNArguments and RTCIntersectFunctionNArguments memory layout