Revision control
++ VARYING vec3 vNormal;
++ VARYING vec3 vViewVec;
++
++ void MAIN()
++ {
++ METALNESS = 1.0;
++ ROUGHNESS = 0.25;
++ FRESNEL_POWER = 5.0;
++ FRESNEL_SCALE = 1.2;
++ FRESNEL_BIAS = 0.5;
++ }
++
++ void AMBIENT_LIGHT()
++ {
++ DIFFUSE += TOTAL_AMBIENT_COLOR;
++ }