Colby Klein
30 lines
721 B
GLSL
30 lines
721 B
GLSL
uniform sampler2D Texture0;
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varying vec2 vCoord;
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varying vec3 vNor;
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const vec4 shadowColor = vec4(0.6, 0.75, 0.9, 1.0);
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void main() {
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vec3 nor, light;
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nor = normalize(vNor);
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vec4 diffuse, specular, color, lightSource;
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float ambient = length(gl_FrontMaterial.ambient.rgb);
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lightSource = gl_LightSource[0].position;
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light = normalize(gl_ModelViewMatrix * lightSource).xyz;
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color = texture2D(Texture0, vCoord.st);
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float intensity = max(dot(light,nor), 0.0);
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if (intensity < 0.5) {
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intensity *= 0.5;
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color *= shadowColor;
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}
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intensity = min(clamp(intensity, ambient, 1.0) + 0.25, 1.0);
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gl_FragColor = color * intensity;
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// Don't allow transparency. Bad Things will happen.
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gl_FragColor.a = 1.0;
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}
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