88 lines
1.8 KiB
GLSL
88 lines
1.8 KiB
GLSL
#version 330 core
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uniform vec3 lightColor;
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uniform float materialNs;
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uniform int objectId;
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#ifdef ALPHA_MASK
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uniform sampler2D alphaMask;
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#endif
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#ifdef AMBIENT_TEXTURE
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uniform sampler2D ambientTexture;
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#else
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uniform vec3 materialKa;
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#endif
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#ifdef DIFFUSE_TEXTURE
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uniform sampler2D diffuseTexture;
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#else
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uniform vec3 materialKd;
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#endif
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#ifdef SPECULAR_TEXTURE
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uniform sampler2D specularTexture;
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#else
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uniform vec3 materialKs;
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#endif
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#ifdef NORMAL_MAP
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uniform sampler2D normalMap;
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in mat3 tangentSpace;
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#else
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in vec3 varNormal;
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#endif
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in vec2 varTexCoord;
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in vec3 lightDirInView;
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in vec3 halfVecInView;
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layout(location = 0)out vec4 outColor;
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vec3 phongLighting(in vec3 kd, in vec3 ks, in float ns, in vec3 color, in vec3 normal, in vec3 lightDir, in vec3 halfVec){
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float diffuseComponent = max(dot(normal, lightDir), 0);
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float specularComponent = max(dot(halfVec, normal), 0);
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return color*diffuseComponent*(kd+ks*pow(specularComponent, ns));
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}
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void main(void) {
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#ifdef ALPHA_MASK
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if(texture(alphaMask, varTexCoord).r < 0.5)
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discard;
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#endif
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#ifdef NORMAL_MAP
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vec3 normal = normalize(texture(normalMap, varTexCoord).xyz * tangentSpace);
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#else
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vec3 normal = normalize(varNormal);
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#endif
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#ifdef AMBIENT_TEXTURE
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vec3 ambient = texture(ambientTexture, varTexCoord).rgb;
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#else
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vec3 ambient = materialKa;
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#endif
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#ifdef DIFFUSE_TEXTURE
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vec3 diffuse = texture(diffuseTexture, varTexCoord).rgb;
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#else
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vec3 diffuse = materialKd;
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#endif
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#ifdef SPECULAR_TEXTURE
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vec3 specular = vec3(texture(specularTexture, varTexCoord).r);
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#else
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vec3 specular = materialKs;
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#endif
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#ifdef AMBIENT_LIGHT
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outColor = vec4(0, 0, 0, 1);
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#else
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vec3 light = phongLighting(diffuse, specular, materialNs, lightColor, normal, lightDirInView, halfVecInView);
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outColor = vec4(light, 1);
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#endif
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}
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