rtcInitRayQueryContext(3)                         Embree Ray Tracing Kernels 4

   NAME

              rtcInitRayQueryContext - initializes the ray query context


   SYNOPSIS

              #include <embree4/rtcore.h>

              struct RTCRayQueryContext
              {
                #if RTC_MAX_INSTANCE_LEVEL_COUNT > 1
                  unsigned int instStackSize;
                #endif

                unsigned int instID[RTC_MAX_INSTANCE_LEVEL_COUNT];
              };

              void rtcInitRayQueryContext(
                struct RTCRayQueryContext* context
              );


   DESCRIPTION
       The rtcInitRayQueryContext function initializes the intersection
       context to default values and should be called to initialize every ray
       query context.

       It is guaranteed that the pointer to the ray query context
       (RTCRayQueryContext type) is passed to the registered callback
       functions.  This way it is possible to attach arbitrary data to the end
       of the ray query context, such as a per-ray payload.

       Inside the user geometry callback the ray query context can get used to
       access the instID stack to know which instance the user geometry object
       resides.

       If not ray query context is specified when tracing a ray, a default
       context is used.

   EXIT STATUS
       No error code is set by this function.

   SEE ALSO
       [rtcIntersect1], [rtcIntersect4/8/16], [rtcOccluded1],
       [rtcOccluded4/8/16]

                                                     rtcInitRayQueryContext(3)