1 files changed, 66 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_voronoi.h b/intern/cycles/kernel/svm/svm_voronoi.h
new file mode 100644
index 00000000000..f5ee7851a51
--- /dev/null
+++ b/intern/cycles/kernel/svm/svm_voronoi.h
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+
+CCL_NAMESPACE_BEGIN
+
+/* Voronoi */
+
+__device_noinline float4 svm_voronoi(NodeVoronoiColoring coloring, float scale, float3 p)
+{
+	/* compute distance and point coordinate of 4 nearest neighbours */
+	float da[4];
+	float3 pa[4];
+
+	voronoi(p*scale, NODE_VORONOI_DISTANCE_SQUARED, 1.0f, da, pa);
+
+	/* output */
+	float fac;
+	float3 color;
+
+	if(coloring == NODE_VORONOI_INTENSITY) {
+		fac = fabsf(da[0]);
+		color = make_float3(fac, fac, fac);
+	}
+	else {
+		color = cellnoise_color(pa[0]);
+        fac= average(color);
+	}
+
+	return make_float4(color.x, color.y, color.z, fac);
+}
+
+__device void svm_node_tex_voronoi(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset)
+{
+	uint coloring = node.y;
+	uint scale_offset, co_offset, fac_offset, color_offset;
+
+	decode_node_uchar4(node.z, &scale_offset, &co_offset, &fac_offset, &color_offset);
+
+	float3 co = stack_load_float3(stack, co_offset);
+	float scale = stack_load_float_default(stack, scale_offset, node.w);
+
+	float4 result = svm_voronoi((NodeVoronoiColoring)coloring, scale, co);
+	float3 color = make_float3(result.x, result.y, result.z);
+	float f = result.w;
+
+	if(stack_valid(fac_offset)) stack_store_float(stack, fac_offset, f);
+	if(stack_valid(color_offset)) stack_store_float3(stack, color_offset, color);
+}
+
+CCL_NAMESPACE_END
+