|
1
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
2
|
// Copyright 2018 Leszek Koltunski leszek@koltunski.pl //
|
|
3
|
// //
|
|
4
|
// This file is part of Distorted. //
|
|
5
|
// //
|
|
6
|
// This library is free software; you can redistribute it and/or //
|
|
7
|
// modify it under the terms of the GNU Lesser General Public //
|
|
8
|
// License as published by the Free Software Foundation; either //
|
|
9
|
// version 2.1 of the License, or (at your option) any later version. //
|
|
10
|
// //
|
|
11
|
// This library is distributed in the hope that it will be useful, //
|
|
12
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
13
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
|
|
14
|
// Lesser General Public License for more details. //
|
|
15
|
// //
|
|
16
|
// You should have received a copy of the GNU Lesser General Public //
|
|
17
|
// License along with this library; if not, write to the Free Software //
|
|
18
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA //
|
|
19
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
20
|
|
|
21
|
precision highp float;
|
|
22
|
|
|
23
|
out vec4 fragColor; // The output color
|
|
24
|
in vec2 v_TexCoordinate; // Interpolated texture coordinate per fragment.
|
|
25
|
|
|
26
|
uniform sampler2D u_Texture;
|
|
27
|
uniform sampler2D u_DepthTexture;
|
|
28
|
|
|
29
|
//////////////////////////////////////////////////////////////////////////////////////////////
|
|
30
|
// why -0.0003 ? On some drivers (for example Qualcomm's V@331, V@415 on Adreno 308 - also on
|
|
31
|
// some Mali devices ) without it the depth test - when postprocessing a flat 2D object - does
|
|
32
|
// not pass (for unknown reasons) and we don't see the Glow halo. See for example the 'Glowing
|
|
33
|
// Leaf' test app.
|
|
34
|
// Why exactly 0.0003? Testing of the Cube app on the SM-A315F. ( Mali G52, drivr r20p0 )
|
|
35
|
// 0.0003 shouldn't hurt anyway.
|
|
36
|
|
|
37
|
void main()
|
|
38
|
{
|
|
39
|
gl_FragDepth = texture(u_DepthTexture,v_TexCoordinate).r -0.0003;
|
|
40
|
fragColor = texture(u_Texture ,v_TexCoordinate);
|
|
41
|
}
|