Added direct diffuse lighting.

2016-12-26 19:14:21 -04:00
parent 9ad63d489a
commit d48e8e0ba3
11 changed files with 566 additions and 154 deletions
--- a/figure.hpp
+++ b/figure.hpp
@@ -14,7 +14,9 @@ public:

  virtual ~Figure() { }

-  virtual bool intersect(Ray & r, float & t, vec3 & n) const = 0;
+  virtual bool intersect(Ray & r, float & t) const = 0;
+
+  virtual vec3 normal_at_int(Ray & r, float & t) const = 0;

  virtual void set_color(float r, float g, float b) {
    color = vec3(r, g, b);