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Last change
on this file since 76 was
44,
checked in by bknecht, 17 years ago
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merge from tutorial branche to trunk
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File size:
330 bytes
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| Rev | Line | |
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| [25] | 1 | sampler RT : register(s0); |
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| 2 | |
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| 3 | float4 Posterize_ps (float2 iTexCoord : TEXCOORD0) : COLOR |
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| 4 | { |
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| 5 | |
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| 6 | float nColors = 8; |
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| 7 | float gamma = 0.6; |
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| 8 | |
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| 9 | float4 texCol = tex2D(RT, iTexCoord); |
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| 10 | float3 tc = texCol.xyz; |
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| 11 | tc = pow(tc, gamma); |
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| 12 | tc = tc * nColors; |
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| 13 | tc = floor(tc); |
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| 14 | tc = tc / nColors; |
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| 15 | tc = pow(tc,1.0/gamma); |
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| 16 | return float4(tc,texCol.w); |
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| 17 | } |
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