Fix lighting bug, cleanup

Pitfall 1 from
http://www.opengl.org/archives/resources/features/KilgardTechniques/oglpitfall/

1 files changed, 4 insertions, 6 deletions

diff --git a/src/RobotRace.java b/src/RobotRace.java
index 9dfda81..308d5de 100644
--- a/src/RobotRace.java
+++ b/src/RobotRace.java
@@ -167,24 +167,22 @@ public class RobotRace extends Base {
     private void initLighting() {
         // greyish color
         float[] ambientRGBA = {0.2f, 0.2f, 0.2f, 1.0f};
-        // yellowish - "sunglow" RGB (255, 204, 51)
-        //float[] diffuseRGBA = {1.0f, 0.8f, 0.2f, 1.0f};
-        // red!
+        // red! the color of the blood!
         float[] diffuseRGBA = {1.0f, 0.0f, 0.0f, 1.0f};
 
         // set the light-source colors
         gl.glLightfv(GL_LIGHT0, GL_AMBIENT, ambientRGBA, 0);
         gl.glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuseRGBA, 0);
 
-        // global ambient light
-        //gl.glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambientRGBA, 0);
-
         // turn the light on (note: display func must set or unset LIGHTING)
         gl.glEnable(GL_LIGHT0);
         //gl.glEnable(GL_LIGHTING);
 
         // blend the light with the material colors
         gl.glEnable(GL_COLOR_MATERIAL);
+
+        // necessary because normals are improperly scaled
+        gl.glEnable(GL_NORMALIZE);
     }
 
     /**