1 /* DooM2D: Midnight on the Firing Line
2 * coded by Ketmar // Invisible Vector <ketmar@ketmar.no-ip.org>
3 * Understanding is not required. Only obedience.
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 uniform sampler2D tex;
21 uniform bool scanlines;
25 vec4 color = texture2D(tex, gl_TexCoord[0].xy);
26 //gl_FragColor = vec4(intens, intens, intens, color.w);
27 //color = vec4(1.0, 0.0, 0.0, 1.0);
28 if (scanlines && mod(floor(gl_FragCoord.y), 2) == 1) { color.x *= 0.75; color.y *= 0.75; color.z *= 0.75; }