Merge pull request #488 from andreasplesch/patch-1

use spec. for ang. attenuation
KhronosGroup · Nov 21, 2023 · 14c9818 · 14c9818
2 parents 9dafdd4 + c4ab650
commit 14c9818
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/source/Renderer/shaders/punctual.glsl b/source/Renderer/shaders/punctual.glsl
@@ -46,7 +46,8 @@ float getSpotAttenuation(vec3 pointToLight, vec3 spotDirection, float outerConeC
     {
         if (actualCos < innerConeCos)
         {
-            return smoothstep(outerConeCos, innerConeCos, actualCos);
+            float angularAttenuation = (actualCos - outerConeCos) / (innerConeCos - outerConeCos);
+            return angularAttenuation * angularAttenuation;
         }
         return 1.0;
     }