diff --git a/src/main/java/net/minecraftforge/client/model/pipeline/LightUtil.java b/src/main/java/net/minecraftforge/client/model/pipeline/LightUtil.java
index f46201d4d9..75dab45d88 100644
--- a/src/main/java/net/minecraftforge/client/model/pipeline/LightUtil.java
+++ b/src/main/java/net/minecraftforge/client/model/pipeline/LightUtil.java
@@ -37,7 +37,7 @@ public class LightUtil
 {
     public static float diffuseLight(float x, float y, float z)
     {
-        return x * x * 0.6f + y * y * ((3f + y) / 4f) + z * z * 0.8f;
+        return Math.min(x * x * 0.6f + y * y * ((3f + y) / 4f) + z * z * 0.8f, 1f);
     }
 
     public static float diffuseLight(EnumFacing side)