diff options
Diffstat (limited to 'intern/cycles/kernel/shaders/node_checker_texture.osl')
| -rw-r--r-- | intern/cycles/kernel/shaders/node_checker_texture.osl | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/intern/cycles/kernel/shaders/node_checker_texture.osl b/intern/cycles/kernel/shaders/node_checker_texture.osl new file mode 100644 index 00000000000..577caf308ff --- /dev/null +++ b/intern/cycles/kernel/shaders/node_checker_texture.osl @@ -0,0 +1,58 @@ +/* + * Copyright 2012, Blender Foundation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include "stdosl.h" +#include "node_texture.h" + +/* Checker */ + +float checker(point p) +{ + p[0] = (p[0] + 0.00001) * 0.9999; + p[1] = (p[1] + 0.00001) * 0.9999; + p[2] = (p[2] + 0.00001) * 0.9999; + + int xi = (int)fabs(floor(p[0])); + int yi = (int)fabs(floor(p[1])); + int zi = (int)fabs(floor(p[2])); + + if ((xi % 2 == yi % 2) == (zi % 2)) { + return 1.0; + } + else { + return 0.0; + } +} + +shader node_checker_texture( + float Scale = 5.0, + point Vector = P, + color Color1 = color(0.8, 0.8, 0.8), + color Color2 = color(0.2, 0.2, 0.2), + output float Fac = 0.0, + output color Color = color(0.0, 0.0, 0.0)) +{ + Fac = checker(Vector * Scale); + if (Fac == 1.0) { + Color = Color1; + } + else { + Color = Color2; + } +} + |