diff --git a/libs/pigment/compositeops/KoCompositeOpFunctions.h b/libs/pigment/compositeops/KoCompositeOpFunctions.h
index 8f8a236..9a97834 100644
--- a/libs/pigment/compositeops/KoCompositeOpFunctions.h
+++ b/libs/pigment/compositeops/KoCompositeOpFunctions.h
@@ -460,6 +460,9 @@ inline T cfGlow(T src, T dst) {
     
     if(dst == unitValue<T>())
         return unitValue<T>();
+
+    if(src == zeroValue<T>())
+        return zeroValue<T>();
     
     return clamp<T>(div(mul(src, src), inv(dst)));
 }
@@ -468,22 +471,7 @@ template<class T>
 inline T cfReflect(T src, T dst) {
     using namespace Arithmetic;
     
-    if(dst == unitValue<T>())
-        return unitValue<T>();    
-    
-    return clamp<T>(cfGlow(dst,src)); 
-    
-}
-
-template<class T>
-inline T cfUQuad1(T src, T dst) {
-    using namespace Arithmetic;
-        // Helper Blender Mode for Heat, and Freeze - Reptorian
-    
-    if(dst == zeroValue<T>())
-        return zeroValue<T>();
-    
-    return clamp<T>(div(mul(inv(src), inv(src)),dst));
+    return cfGlow(dst,src);
 }
 
 template<class T>
@@ -492,18 +480,18 @@ inline T cfHeat(T src, T dst) {
     
     if(dst == zeroValue<T>())
         return zeroValue<T>();
-    
-    return clamp<T>(inv(cfUQuad1(src,dst)));
+
+    if(src == unitValue<T>())
+        return unitValue<T>();
+
+    return inv(clamp<T>(div(mul(inv(src), inv(src)),dst)));
 }
 
 template<class T>
 inline T cfFreeze(T src, T dst) {
     using namespace Arithmetic;
     
-    if(dst == zeroValue<T>())
-        return zeroValue<T>();
-    
-    return clamp<T>(cfHeat(dst,src)); 
+    return cfHeat(dst,src);
 }