source:
code/branches/skybox/Media/materials/programs/SharpenEdgesFP.cg
@
2770
Last change on this file since 2770 was 390, checked in by landauf, 17 years ago | |
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File size: 392 bytes |
Line | |
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1 | sampler RT: register(s0); |
2 | |
3 | float4 sharpenEdges_fp(float2 iTexCoord: TEXCOORD0, uniform float2 vTexelSize) : COLOR |
4 | { |
5 | |
6 | float2 usedTexelED[8] = { |
7 | -1, -1, |
8 | 0, -1, |
9 | 1, -1, |
10 | -1, 0, |
11 | 1, 0, |
12 | -1, 1, |
13 | 0, 1, |
14 | 1, 1, |
15 | }; |
16 | |
17 | float4 cAvgColor= 9 * tex2D (RT, iTexCoord); |
18 | |
19 | for(int t=0; t<8; t++) |
20 | cAvgColor -= tex2D(RT, iTexCoord + vTexelSize * usedTexelED[t]); |
21 | |
22 | return cAvgColor; |
23 | } |
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