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https://github.com/lucaspalomodevelop/meshlab.git
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45 lines
2.1 KiB
GLSL
45 lines
2.1 KiB
GLSL
/****************************************************************************
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* MeshLab o o *
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* An extendible mesh processor o o *
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* _ O _ *
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* Copyright(C) 2005, 2009 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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// vertex to fragment shader io
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varying vec3 N;
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varying vec3 I;
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varying vec4 Cs;
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// globals
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uniform float edgefalloff;
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uniform float intensity;
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uniform float ambient;
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// entry point
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void main()
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{
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float opac = dot(normalize(-N), normalize(-I));
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opac = abs(opac);
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opac = ambient + intensity*(1.0-pow(opac, edgefalloff));
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//opac = 1.0 - opac;
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gl_FragColor = opac * Cs;
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gl_FragColor.a = opac;
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}
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