fix attenuation shader with spot lights

sinisterchipmunk · Sep 22, 2012 · 53a2ee5 · 53a2ee5
1 parent ec359e0
commit 53a2ee5
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/assets/javascripts/shaders/attenuation/fragment.glsl b/lib/assets/javascripts/shaders/attenuation/fragment.glsl
@@ -8,6 +8,7 @@ shared uniform float QuadraticAttenuation;
 void main(void) {
   if (PASS != 0) {
     cache(float, LightDistanceFromSurface) { LightDistanceFromSurface = 1.0; }
+    cache(float, SpotAttenuation) { SpotAttenuation = 1.0; }
 
     float multiplier = 1.0;
     import(AttenuationMultiplier, multiplier *= AttenuationMultiplier);
@@ -18,6 +19,7 @@ void main(void) {
     import(SkipAttenuation, skipAttenuation += SkipAttenuation);
 
     if (skipAttenuation == 0)
+      multiplier *= SpotAttenuation;
       gl_FragColor.rgb *= multiplier / (ConstantAttenuation +
                                  LinearAttenuation * LightDistanceFromSurface +
                                  QuadraticAttenuation * pow(LightDistanceFromSurface, 2.0));