fixed shadowmap init

light.h

@@ -42,7 +42,7 @@ public:
     glm::vec3 getColor() {return color;}
 
     bool isShadowCaster() {return shadowCaster;}
-    void initShadowMap(int resWidth, int resHeight);
+    void initShadowMap(int resWidth, int resHeight, glm::vec3 dim = glm::vec3(1));
     void generateShadowMap(Scene* scene);
     Texture* getShadowMap();