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26 lines
842 B
GLSL
26 lines
842 B
GLSL
#version 120
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//
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// directional_light.frag
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// fragment shader
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//
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// Created by Andrzej Kapolka on 9/3/14.
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// Copyright 2014 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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// the diffuse texture
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uniform sampler2D diffuseMap;
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// the normal texture
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uniform sampler2D normalMap;
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void main(void) {
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// compute the base color based on OpenGL lighting model
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vec4 normal = texture2D(normalMap, gl_TexCoord[0].st);
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gl_FragColor = vec4((texture2D(diffuseMap, gl_TexCoord[0].st) * (gl_FrontLightModelProduct.sceneColor +
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gl_FrontLightProduct[0].ambient + gl_FrontLightProduct[0].diffuse * max(0.0, dot(normal * 2.0 -
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vec4(1.0, 1.0, 1.0, 2.0), gl_LightSource[0].position)))).rgb, normal.a);
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}
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