1 files changed, 82 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/nodes/node_voronoi_texture.osl b/intern/cycles/kernel/osl/nodes/node_voronoi_texture.osl
new file mode 100644
index 00000000000..140ba6a6ba1
--- /dev/null
+++ b/intern/cycles/kernel/osl/nodes/node_voronoi_texture.osl
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2011, 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"
+
+/* Voronoi */
+
+shader node_voronoi_texture(
+	string DistanceMetric = "Actual Distance",
+	string Coloring = "Intensity",
+	float Weight1 = 1.0,
+	float Weight2 = 0.0,
+	float Weight3 = 0.0,
+	float Weight4 = 0.0,
+	float Exponent = 2.5,
+	float Intensity = 1.0,
+	float Size = 0.25,
+	point Vector = P,
+	output float Fac = 0.0,
+	output color Color = color(0.0, 0.0, 0.0))
+{
+	float exponent = max(Exponent, 1e-5);
+	float size = nonzero(Size, 1e-5);
+
+	float aw1 = fabs(Weight1);
+	float aw2 = fabs(Weight2);
+	float aw3 = fabs(Weight3);
+	float aw4 = fabs(Weight4);
+	float sc = (aw1 + aw2 + aw3 + aw4);
+
+	if(sc != 0.0)
+		sc = Intensity/sc;
+	
+	/* compute distance and point coordinate of 4 nearest neighbours */
+	float da[4];
+	point pa[4];
+
+	voronoi(Vector/size, DistanceMetric, exponent, da, pa);
+
+	/* Scalar output */
+	Fac = sc * fabs(Weight1*da[0] + Weight2*da[1] + Weight3*da[2] + Weight4*da[3]);
+
+	/* Colored output */
+	if(Coloring == "Intensity") {
+		Color = color(Fac, Fac, Fac);
+	}
+	else {
+		Color = aw1*cellnoise_color(pa[0]);
+		Color += aw2*cellnoise_color(pa[1]);
+		Color += aw3*cellnoise_color(pa[2]);
+		Color += aw4*cellnoise_color(pa[3]);
+
+		if(Coloring != "Position") {
+			float t1 = min((da[1] - da[0])*10.0, 1.0);
+
+			if(Coloring == "Position, Outline, and Intensity")
+				Color *= t1*Fac;
+			else if(Coloring == "Position and Outline")
+				Color *= t1*sc;
+		}
+		else {
+			Color *= sc;
+		}
+	}
+}
+