 rtcOccluded8Ex(EXPR valid,EXPR scene,EXPR context,EXPR ray);
 =>
 rtcOccluded8(valid,scene,context,&ray);
+COMMENT FIXME: ray is occluded when ray.tfar < 0.0f
 }@@
 
 @@{

  const void* valid_in = args->valid;
  void* geomUserPtr_in = args->geomUserPtr;
  COMMENT RTCIntersectContext* context_in = args->context;
  RTCRay4& ray_in = *(RTCRay4*) args->ray;
  unsigned int N_in = args->N;
  unsigned int primID_in = args->primID;
  assert(N_in == 4);

  RTCIntersectContext context;
  rtcInitIntersectContext(&context);
  rtcOccluded8(valid,scene,&context,&ray);
  COMMENT FIXME: ray is occluded when ray.tfar < 0.0f
}
}@@

