51 lines
1.3 KiB
GLSL
51 lines
1.3 KiB
GLSL
#version 430 core
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struct PointLight {
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vec3 position;
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vec3 color;
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float intensity;
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};
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#define NR_POINT_LIGHTS 5
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uniform vec3 objectColor;
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uniform vec3 lightPos;
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uniform vec3 cameraPos;
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uniform sampler2D colorTexture;
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uniform PointLight pointLights[NR_POINT_LIGHTS];
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in vec3 interpNormal;
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in vec3 fragPos;
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in vec2 vTexCoord;
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void main()
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{
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vec3 fragColor = vec3(0,0,0);
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vec4 textureColor = texture2D(colorTexture, -vTexCoord);
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vec4 ambient = vec4(0.1, 0.1, 0.1, 1.0) * textureColor;
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vec3 normal = normalize(interpNormal);
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for(int i = 0; i < NR_POINT_LIGHTS; i++)
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{
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vec3 lightDir = normalize(pointLights[i].position - fragPos);
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vec3 V = normalize(cameraPos-fragPos);
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vec3 R = reflect(-lightDir,normal);
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float dist = distance(fragPos, pointLights[i].position) / 5;
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float distance = (1/dist) * (1/dist);
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float spec = pow(max(0,dot(R,V)),2);
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float diff = max(0,dot(normal,normalize(lightDir)));
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vec3 diffuse = pointLights[i].color * diff * distance * pointLights[i].intensity;
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vec3 specular = spec * pointLights[i].color * (pointLights[i].intensity/dist);
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vec3 texture = vec3(textureColor.x, textureColor.y, textureColor.z) * pointLights[i].color;
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fragColor += mix(texture,texture*diffuse+vec3(1)*specular,0.9);
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}
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gl_FragColor = vec4(fragColor, 1.0) + ambient;
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}
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