| … | |
… | |
| 15 | pixelOut OUT; // output of the pixel shader |
15 | pixelOut OUT; // output of the pixel shader |
| 16 | |
16 | |
| 17 | float SpecExpon = 120; |
17 | float SpecExpon = 120; |
| 18 | float4 LightColor = { 1, 1, 1, 1 }; |
18 | float4 LightColor = { 1, 1, 1, 1 }; |
| 19 | |
19 | |
| 20 | float3 Ln = IN.LightVec; |
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| 21 | float3 Nn = IN.WorldNormal; |
20 | float3 n = IN.WorldNormal; |
| 22 | float3 Vn = IN.EyeVec; |
21 | float3 v = IN.EyeVec; |
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22 | float3 l = IN.LightVec; |
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23 | |
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24 | float r = reflect (-v, n); |
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25 | float spec = pow (clamp (dot (l, r), 0, 1), SpecExpon); |
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26 | float diff = clamp (dot (n, l), 0.0, 1); |
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27 | |
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28 | OUT.col = glstate.material.diffuse * diff + LightColor * spec; |
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29 | return OUT; |
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30 | |
|
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31 | /* |
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32 | float3 Ln = normalize (IN.LightVec); |
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33 | float3 Nn = normalize (IN.WorldNormal); |
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34 | float3 Vn = normalize (IN.EyeVec); |
| 23 | |
35 | |
| 24 | float3 Hn = 0.5 * (Ln + Vn); |
36 | float3 Hn = 0.5 * (Ln + Vn); |
| 25 | float ldn = dot (Ln, Nn); |
37 | float ldn = dot (Ln, Nn); |
| 26 | float hdn = dot (Hn, Nn); |
38 | float hdn = dot (Hn, Nn); |
| 27 | |
39 | |
| … | |
… | |
| 32 | float4 specContrib = litV.y * litV.z * LightColor; |
44 | float4 specContrib = litV.y * litV.z * LightColor; |
| 33 | float4 result = diffContrib + specContrib; |
45 | float4 result = diffContrib + specContrib; |
| 34 | |
46 | |
| 35 | OUT.col = result; |
47 | OUT.col = result; |
| 36 | return OUT; |
48 | return OUT; |
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|
49 | */ |
| 37 | } |
50 | } |
| 38 | |
51 | |
