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7170e4eb
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leszek
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//////////////////////////////////////////////////////////////////////////////////////////////
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535a45bc
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Leszek Koltunski
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// Copyright 2018 Leszek Koltunski //
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7170e4eb
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leszek
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// //
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535a45bc
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Leszek Koltunski
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// This file is part of Distorted. //
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7170e4eb
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leszek
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// //
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535a45bc
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Leszek Koltunski
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// Distorted is free software: you can redistribute it and/or modify //
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7170e4eb
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leszek
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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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535a45bc
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Leszek Koltunski
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// Distorted is distributed in the hope that it will be useful, //
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7170e4eb
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leszek
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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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535a45bc
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Leszek Koltunski
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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7170e4eb
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leszek
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//////////////////////////////////////////////////////////////////////////////////////////////
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040cd18c
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Leszek Koltunski
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precision highp float;
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leszek
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out vec4 fragColor; // The output color
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in vec2 v_TexCoordinate; // Interpolated texture coordinate per fragment.
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uniform sampler2D u_Texture;
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uniform sampler2D u_DepthTexture;
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//////////////////////////////////////////////////////////////////////////////////////////////
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35a0f4ed
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Leszek Koltunski
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// why -0.0003 ? On some drivers (for example Qualcomm's V@331, V@415 on Adreno 308 - also on
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5ec42229
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Leszek Koltunski
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// some Mali devices ) without it the depth test - when postprocessing a flat 2D object - does
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// not pass (for unknown reasons) and we don't see the Glow halo. See for example the 'Glowing
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// Leaf' test app.
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35a0f4ed
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Leszek Koltunski
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// Why exactly 0.0003? Testing of the Cube app on the SM-A315F. ( Mali G52, drivr r20p0 )
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// 0.0003 shouldn't hurt anyway.
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7170e4eb
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leszek
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void main()
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{
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35a0f4ed
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Leszek Koltunski
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gl_FragDepth = texture(u_DepthTexture,v_TexCoordinate).r -0.0003;
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040cd18c
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Leszek Koltunski
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fragColor = texture(u_Texture ,v_TexCoordinate);
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7170e4eb
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leszek
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}
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