31 lines
925 B
GLSL
31 lines
925 B
GLSL
#version 330 core
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out vec4 frag_color;
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uniform vec3 light_pos;
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uniform vec3 solid_color;
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in vec3 normal;
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in vec3 frag_position;
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void main() {
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vec3 light_color = vec3(1, 1, 1);
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vec3 light_direction_norm = normalize(light_pos - frag_position);
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vec3 normal_norm = normalize(normal);
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vec3 eyes = vec3(1, 1, 0);
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float ambient_strength = 0.1;
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vec3 ambient = ambient_strength * light_color;
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float diff = max(dot(normal_norm, light_direction_norm), 0.0);
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vec3 diffuse = diff * light_color;
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float specular_strength = 0.5;
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vec3 view_direction_norm = normalize(eyes - frag_position);
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vec3 reflect_dir = reflect(-light_direction_norm, normal_norm);
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float spec = pow(max(dot(view_direction_norm, reflect_dir), 0.0), 32);
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vec3 specular = specular_strength * spec * light_color;
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vec3 result = (ambient + diffuse + specular) * solid_color;
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frag_color = vec4(result, 1.0);
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}
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