uniform samplerRECT samp0 : register(s0); void main(out float4 ocol0 : COLOR0, in float2 uv0 : TEXCOORD0) { float4 c0 = texRECT(samp0, uv0).rgba; float red = 0.0; float green = 0.0; float blue = 0.0; float avg = (c0.r + c0.g + c0.b) / 3; red = c0.r + (c0.g / 2) + (c0.b / 3); green = c0.r / 3; ocol0 = float4(red, green, blue, 1.0); }