73 lines
2.0 KiB
GLSL
73 lines
2.0 KiB
GLSL
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2014, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsitec.ch; http://colobot.info; http://github.com/colobot
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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 3 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.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://gnu.org/licenses
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*/
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#version 120
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uniform sampler2D uni_PrimaryTexture;
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uniform sampler2D uni_SecondaryTexture;
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uniform sampler2DShadow uni_ShadowTexture;
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uniform bool uni_TextureEnabled[3];
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uniform bool uni_AlphaTestEnabled;
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uniform float uni_AlphaReference;
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uniform bool uni_FogEnabled;
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uniform vec2 uni_FogRange;
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uniform vec4 uni_FogColor;
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uniform float uni_ShadowColor;
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varying float pass_Distance;
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void main()
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{
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vec4 color = gl_Color;
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if (uni_TextureEnabled[0])
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{
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color = color * texture2D(uni_PrimaryTexture, gl_TexCoord[0].st);
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}
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if (uni_TextureEnabled[1])
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{
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color = color * texture2D(uni_SecondaryTexture, gl_TexCoord[1].st);
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}
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if (uni_TextureEnabled[2])
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{
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color = color * mix(uni_ShadowColor, 1.0f, shadow2D(uni_ShadowTexture, gl_TexCoord[2].xyz).x);
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}
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if (uni_FogEnabled)
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{
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float interpolate = (pass_Distance - uni_FogRange.x) / (uni_FogRange.y - uni_FogRange.x);
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color = mix(color, uni_FogColor, clamp(interpolate, 0.0f, 1.0f));
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}
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if (uni_AlphaTestEnabled)
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{
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if(color.a < uni_AlphaReference)
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discard;
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}
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gl_FragColor = color;
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}
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