Cycles / OSL Textures:

* Ported my checker texture to OSL. :) 

2 files changed, 59 insertions, 0 deletions

diff --git a/intern/cycles/kernel/osl/nodes/CMakeLists.txt b/intern/cycles/kernel/osl/nodes/CMakeLists.txt
index 2ee7ef04fa3..5a645919358 100644
--- a/intern/cycles/kernel/osl/nodes/CMakeLists.txt
+++ b/intern/cycles/kernel/osl/nodes/CMakeLists.txt
@@ -7,6 +7,7 @@ set(SRC_OSL
 	node_background.osl
 	node_bump.osl
 	node_camera.osl
+	node_checker_texture.osl
 	node_convert_from_color.osl
 	node_convert_from_float.osl
 	node_convert_from_normal.osl
diff --git a/intern/cycles/kernel/osl/nodes/node_checker_texture.osl b/intern/cycles/kernel/osl/nodes/node_checker_texture.osl
new file mode 100644
index 00000000000..712d51333ad
--- /dev/null
+++ b/intern/cycles/kernel/osl/nodes/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 = fabs(floor(p[0]));
+	int yi = fabs(floor(p[1]));
+	int zi = 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 = color(Color1, Color1, Color1);
+	}
+	else {
+		Color = color(Color2, Color2, Color2);
+	}
+}
+