Method occluded

kernels/common/accelset.h:175–202

! Tests if single ray is occluded by the scene. */

      /*! Tests if single ray is occluded by the scene. */
      __forceinline bool occluded (Ray& ray, unsigned int geomID, unsigned int primID, RayQueryContext* context)
      {
        assert(primID < size());

        int mask = -1;
        OccludedFunctionNArguments args;
        args.valid = &mask;
        args.geometryUserPtr = userPtr;
        args.context = context->user;
        args.ray = (RTCRayN*)&ray;
        args.N = 1;
        args.geomID = geomID;
        args.primID = primID;
        args.geometry = this;
        args.forward_scene = nullptr;
        args.args = context->args;

        OccludedFuncN occludedFunc = nullptr;
        occludedFunc = intersectorN.occluded;

        if (context->getOccludedFunction())
          occludedFunc = context->getOccludedFunction();

        assert(occludedFunc);
        occludedFunc(&args);

        return mask != 0;
      }

      /*! Intersects a single ray with the scene. */
    __forceinline bool intersect (RayHit& ray, unsigned int geomID, unsigned int primID, RayQueryContext* context, RTCScene& forward_scene)