--- a/kwin/scene-fragment.glsl 2012-01-09 12:31:41.168808030 +0100

--- a/kwin/scene-fragment.glsl 2012-01-09 12:31:41.168808030 +0100
+++ b/kwin/scene-fragment.glsl 2012-01-09 17:40:22.084123382 +0100
@@ -12,10 +12,6 @@

tex.a += float(u_forceAlpha);

- if (saturation != 1.0) {
- tex.rgb = mix(vec3(dot( vec3( 0.30, 0.59, 0.11 ), tex.rgb )), tex.rgb, saturation);
- }
-
tex *= modulation;

#ifdef KWIN_SHADER_DEBUG