1 |
root |
1.2 |
struct vertexOut { |
2 |
root |
1.8 |
float4 HPosition : POSITION; |
3 |
|
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float4 TexCoord : TEXCOORD0; |
4 |
|
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float3 LightVec : TEXCOORD1; |
5 |
|
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float3 EyeVec : TEXCOORD2; |
6 |
|
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float3 WorldNormal : TEXCOORD3; |
7 |
root |
1.12 |
float3 WorldView : TEXCOORD4; |
8 |
root |
1.2 |
}; |
9 |
root |
1.1 |
|
10 |
|
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struct pixelOut { |
11 |
|
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float4 col : COLOR; |
12 |
|
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}; |
13 |
root |
1.3 |
|
14 |
root |
1.7 |
pixelOut main(vertexOut IN) |
15 |
root |
1.1 |
{ |
16 |
root |
1.12 |
pixelOut OUT; |
17 |
root |
1.8 |
|
18 |
root |
1.12 |
half SpecExpon = 200; |
19 |
root |
1.5 |
float4 LightColor = { 1, 1, 1, 1 }; |
20 |
root |
1.3 |
|
21 |
root |
1.12 |
half3 Ln = normalize (IN.LightVec); |
22 |
|
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half3 Nn = normalize (IN.WorldNormal); |
23 |
|
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half3 Vn = normalize (IN.WorldView); |
24 |
|
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|
25 |
|
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half3 Hn = normalize (Ln + Vn); |
26 |
|
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half ldn = dot (Ln, Nn); |
27 |
|
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half hdn = dot (Hn, Nn); |
28 |
root |
1.8 |
|
29 |
root |
1.1 |
// specialized "lit" function computes weights for |
30 |
|
|
// diffuse and specular parts: |
31 |
root |
1.12 |
half4 litV = lit (ldn, hdn, SpecExpon); |
32 |
|
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half4 diffContrib = glstate.material.diffuse * (litV.y * LightColor + glstate.lightmodel.ambient); |
33 |
|
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half4 specContrib = litV.y * litV.z * LightColor; |
34 |
|
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half4 result = diffContrib + specContrib; |
35 |
root |
1.8 |
|
36 |
root |
1.5 |
OUT.col = result; |
37 |
root |
1.9 |
return OUT; |
38 |
root |
1.1 |
} |
39 |
|
|
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