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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2018 Leszek Koltunski leszek@koltunski.pl //
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// //
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// This file is part of Distorted. //
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// //
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// This library is free software; you can redistribute it and/or //
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// modify it under the terms of the GNU Lesser General Public //
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// License as published by the Free Software Foundation; either //
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// version 2.1 of the License, or (at your option) any later version. //
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// //
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// This library 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 GNU //
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// Lesser General Public License for more details. //
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// //
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// You should have received a copy of the GNU Lesser General Public //
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// License along with this library; if not, write to the Free Software //
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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precision highp float;
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in vec2 a_Position; // Per-vertex position.
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out vec2 v_TexCoordinate; //
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uniform vec2 u_TexCorr; // when we blit from postprocessing buffers, the buffers can be
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// larger than necessary (there is just one static set being
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// reused!) so we need to compensate here by adjusting the texture
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// coords.
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//////////////////////////////////////////////////////////////////////////////////////////////
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void main()
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{
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v_TexCoordinate = (a_Position + 0.5) * u_TexCorr;
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gl_Position = vec4(2.0*a_Position,0.0,1.0);
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}
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