Add an entry flag to SharedPoint

[libs/math.git] / source / geometry / hyperbox.h

diff --git a/source/geometry/hyperbox.h b/source/geometry/hyperbox.h
index e45fadc12ae92d4752b523302328adeaa8df650d..546ad0ec3984c5b338978c23b37f0c8ea5f97533 100644 (file)
--- a/source/geometry/hyperbox.h
+++ b/source/geometry/hyperbox.h
@@ -116,6 +116,7 @@ inline unsigned HyperBox<T, D>::get_intersections(const Ray<T, D> &ray, SurfaceP
                                        points[n].normal = LinAl::Vector<T, D>();
                                        points[n].normal[i] = j;
                                        points[n].distance = x;
+                                       points[n].entry = (T(j)*ray.get_direction()[i]<T(0));
 
                                        if(n==1 && x<points[0].distance)
                                                std::swap(points[0], points[1]);