37 lines
1 KiB
Text
37 lines
1 KiB
Text
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varying vec3 N;
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varying vec3 L;
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varying vec3 V;
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varying vec2 T;
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uniform sampler2D BaseMap;
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uniform sampler2D AltMap;
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uniform sampler2D NormalMap;
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void main()
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{
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vec3 bump = normalize(texture2D(NormalMap,T).xyz*2.0-1.0)-vec3(0,0,1);
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vec3 n = normalize(N)//+bump*5.0);
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vec3 l = normalize(L);
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vec3 v = normalize(V);
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float HighlightSize=0.1;
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float ShadowSize=0.2;
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float OutlineWidth=0.2;
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vec4 MidColour=gl_FrontMaterial.diffuse;
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vec4 HighlightColour=MidColour*2.0;
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vec4 ShadowColour=MidColour*0.5;
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HighlightColour.a=1.0;
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ShadowColour.a=1.0;
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float lambert = dot(l,n);
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vec4 colour = vec4(MidColour.xyz*lambert,1);
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if (lambert > 1.0-HighlightSize) colour = HighlightColour;
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if (lambert < ShadowSize) colour = ShadowColour;
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if (dot(n,v) < OutlineWidth) colour = vec4(0,0,0,1);
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if (dot(n,v) < 0.0) colour = MidColour;//*texture2D(BaseMap, T);
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colour = mix(colour+texture2D(AltMap, T*10.0),colour,smoothstep(4.0,8.0,length(V)));
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colour.a *= smoothstep(2.0,6.0,length(V));
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gl_FragColor = colour;
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}
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