diff --git a/Templates/BaseGame/game/core/rendering/shaders/gl/lighting.glsl b/Templates/BaseGame/game/core/rendering/shaders/gl/lighting.glsl
index 06d1bb621..d222f9324 100644
--- a/Templates/BaseGame/game/core/rendering/shaders/gl/lighting.glsl
+++ b/Templates/BaseGame/game/core/rendering/shaders/gl/lighting.glsl
@@ -281,7 +281,7 @@ float computeSpecOcclusion( float NdotV , float AO , float roughness )
 
 float roughnessToMipLevel(float roughness, float numMips)
 {	
-   return roughness * numMips;
+   return pow(abs(roughness),0.25) * numMips;
 }
 
 vec4 compute4Lights( Surface surface,
diff --git a/Templates/BaseGame/game/core/rendering/shaders/lighting.hlsl b/Templates/BaseGame/game/core/rendering/shaders/lighting.hlsl
index 036d686f6..94387fa60 100644
--- a/Templates/BaseGame/game/core/rendering/shaders/lighting.hlsl
+++ b/Templates/BaseGame/game/core/rendering/shaders/lighting.hlsl
@@ -282,7 +282,7 @@ float computeSpecOcclusion( float NdotV , float AO , float roughness )
 
 float roughnessToMipLevel(float roughness, float numMips)
 {	
-   return roughness * numMips;
+   return pow(abs(roughness),0.25) * numMips;
 }
 
 float4 compute4Lights( Surface surface,