21 lines
397 B
Text
21 lines
397 B
Text
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#version 120
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varying vec4 p;
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varying vec4 n;
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void main()
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{
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vec4 normal = normalize(n);
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vec3 norm = vec3(normal.x, normal.y, normal.z);
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vec4 npos = normalize(p);
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vec3 pos = vec3(npos.x, npos.y, npos.z);
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float product = dot(norm, pos);
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if(product <= 0.3 && product >= -0.3)
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gl_FragColor = vec4(0.0f, 0.0f, 0.0f, 1.0f);
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else
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gl_FragColor = vec4(1.0f, 1.0f, 1.0f, 1.0f);
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}
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