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library / src / main / res / raw / preprocess_fragment_shader.glsl @ 9a3607b3

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//////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                          //
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//                                                                                          //
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// This file is part of Distorted.                                                          //
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//                                                                                          //
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// Distorted 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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// Distorted 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 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 Distorted.  If not, see <http://www.gnu.org/licenses/>.                       //
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//////////////////////////////////////////////////////////////////////////////////////////////
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precision highp float;
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in vec2 v_TexCoordinate;                // Interpolated texture coordinate per fragment.
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out vec4 fragColor;
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uniform vec4 u_Color;
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uniform sampler2D u_Texture;            // The input texture.
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//////////////////////////////////////////////////////////////////////////////////////////////
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void main()
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  {
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  vec4 color = texture(u_Texture,v_TexCoordinate);
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  fragColor  = vec4(u_Color.rgb, sign(color.a)*u_Color.a);
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  }
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