Method intersect

common/math/bbox.h:60–62

! intersects two boxes */

    /*! intersects two boxes */
    __forceinline static const BBox intersect (const BBox& a, const BBox& b) {
      return BBox(max(a.lower, b.lower), min(a.upper, b.upper));
    }

     /*! enlarge box by some scaling factor */
    __forceinline BBox enlarge_by(const float a) const {