35 lines
994 B
GLSL
35 lines
994 B
GLSL
#version 150
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in vec3 vNormal;
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in vec2 vTexCoord;
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in vec4 fragPosition;
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out vec4 oColor;
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uniform sampler2D uTexture;
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uniform int lightCount;
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uniform vec3 lightSources[128];
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uniform vec3 ambientColor;
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uniform float ambientFactor;
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uniform vec3 lightColors[128];
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uniform float lightIntensities[128];
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void main()
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{
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vec3 ambientColor = ambientFactor * ambientColor;
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vec3 diffuseColor = vec3(0.0, 0.0, 0.0);
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for(int i = 0; i<lightCount; i++) {
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float distance = distance(lightSources[i], vec3(fragPosition));
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// only take lights into account with meaningful contribution
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if (distance > 0.001f) {
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float diffuseFactor = (1.0*lightIntensities[i])/(distance);
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diffuseColor += dot(normalize(vNormal), normalize(lightSources[i]))
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*diffuseFactor*lightColors[i];
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}
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}
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vec3 finalColor = diffuseColor + ambientColor;
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vec3 texture = texture(uTexture, vTexCoord).rgb;
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oColor = vec4(finalColor*texture, 1.0 );
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}
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