Add function to calculate sphere normal vector on given point on the sphere.

2020-02-17 15:39:14 +00:00
parent 656ff52204
commit a8194169c5
5 changed files with 92 additions and 0 deletions
--- a/source/include/sphere.h
+++ b/source/include/sphere.h
@@ -18,6 +18,7 @@ class Sphere : public Object
 public:
    /* All sphere are at (0, 0, 0) and radius 1 in the object space */
    virtual Intersect intersect(Ray r);
+    virtual Tuple normalAt(Tuple point);
 };

 #endif //DORAYME_SPHERE_H