1 files changed, 55 insertions, 0 deletions
diff --git a/intern/cycles/kernel/svm/svm_clouds.h b/intern/cycles/kernel/svm/svm_clouds.h
new file mode 100644
index 00000000000..e51af684ab9
--- /dev/null
+++ b/intern/cycles/kernel/svm/svm_clouds.h
@@ -0,0 +1,55 @@
+/*
+ * 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
+
+/* Clouds */
+
+__device void svm_clouds(NodeNoiseBasis basis, int hard, int depth, float size, float3 p, float *fac, float3 *color)
+{
+	p /= size;
+
+	*fac = noise_turbulence(p, basis, depth, hard);
+	*color = make_float3(*fac,
+		noise_turbulence(make_float3(p.y, p.x, p.z), basis, depth, hard),
+		noise_turbulence(make_float3(p.y, p.z, p.x), basis, depth, hard));
+}
+
+__device void svm_node_tex_clouds(ShaderData *sd, float *stack, uint4 node)
+{
+	uint basis, hard, depth;
+	uint size_offset, co_offset, fac_offset, color_offset;
+
+	decode_node_uchar4(node.y, &basis, &hard, &depth, NULL);
+	decode_node_uchar4(node.z, &size_offset, &co_offset, &fac_offset, &color_offset);
+
+	float3 co = stack_load_float3(stack, co_offset);
+	float size = stack_load_float_default(stack, size_offset, node.w);
+	size = nonzerof(size, 1e-5f);
+
+	float3 color;
+	float f;
+
+	svm_clouds((NodeNoiseBasis)basis, hard, depth, size, co, &f, &color);
+
+	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
+