diff --git a/Data/User/Shaders/mad_world.txt b/Data/User/Shaders/mad_world.txt
index c4870ce0e5..1f7184fe67 100644
--- a/Data/User/Shaders/mad_world.txt
+++ b/Data/User/Shaders/mad_world.txt
@@ -2,17 +2,16 @@ uniform samplerRECT samp0 : register(s0);
 
 void main(out float4 ocol0 : COLOR0, in float2 uv0 : TEXCOORD0)
 {
-  float4 emboss = (texRECT(samp0, uv0+1).rgba - texRECT(samp0, uv0-1).rgba);
+  float4 emboss = (texRECT(samp0, uv0+1).rgba - texRECT(samp0, uv0-1).rgba)*2.0f;
   emboss -= (texRECT(samp0, uv0+float2(1,-1)).rgba - texRECT(samp0, uv0+float2(-1,1)).rgba);
   float4 color = texRECT(samp0, uv0).rgba;
-  if (color.r > 0.9 && color.b + color.b < 0.2)
+  if (color.r > 0.8 && color.b + color.b < 0.2)
     ocol0 = float4(1,0,0,0);
   else {
     color += emboss;
-    float4 bright = dot(color.rgb, float3(0.3, 0.5, 0.2));
-    if (bright > 0.5)
+    if (dot(color.rgb, float3(0.3, 0.5, 0.2)) > 0.5)
       ocol0 = float4(1,1,1,1);
     else
       ocol0 = float4(0,0,0,0);
   }
-}
+}
\ No newline at end of file