| 1 |
7f1735dc
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
| 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 |
7170e4eb
|
leszek
|
|
| 21 |
47511918
|
Leszek Koltunski
|
precision highp float;
|
| 22 |
|
|
precision highp int;
|
| 23 |
7170e4eb
|
leszek
|
|
| 24 |
375b3950
|
Leszek Koltunski
|
in vec2 a_Position; // Per-vertex position.
|
| 25 |
|
|
out vec2 v_TexCoordinate; //
|
| 26 |
56c6ca24
|
Leszek Koltunski
|
out vec2 v_Pixel; // 2D pixel coords in window space
|
| 27 |
375b3950
|
Leszek Koltunski
|
|
| 28 |
|
|
uniform float u_Depth; // distance from the near plane to render plane, in clip coords
|
| 29 |
|
|
uniform vec2 u_TexCorr; // when we blit from postprocessing buffers, the buffers can be
|
| 30 |
|
|
// larger than necessary (there is just one static set being
|
| 31 |
|
|
// reused!) so we need to compensate here by adjusting the texture
|
| 32 |
|
|
// coords.
|
| 33 |
|
|
|
| 34 |
344ac0e4
|
Leszek Koltunski
|
uniform uvec2 u_Size; // size of the output surface, in pixels.
|
| 35 |
8777ce17
|
Leszek Koltunski
|
|
| 36 |
7170e4eb
|
leszek
|
//////////////////////////////////////////////////////////////////////////////////////////////
|
| 37 |
|
|
|
| 38 |
|
|
void main()
|
| 39 |
|
|
{
|
| 40 |
375b3950
|
Leszek Koltunski
|
v_TexCoordinate = (a_Position + 0.5) * u_TexCorr;
|
| 41 |
344ac0e4
|
Leszek Koltunski
|
v_Pixel = (a_Position + 0.5) * vec2(u_Size);
|
| 42 |
375b3950
|
Leszek Koltunski
|
gl_Position = vec4(2.0*a_Position,u_Depth,1.0);
|
| 43 |
7170e4eb
|
leszek
|
}
|