Shading: Add White Noise node.

The White Noise node hashes the input and returns a random number in the
range [0, 1]. The input can be a 1D, 2D, 3D, or a 4D vector.

Reviewers: brecht, JacquesLucke

Differential Revision: https://developer.blender.org/D5550

1 files changed, 13 insertions, 0 deletions

diff --git a/intern/cycles/render/nodes.h b/intern/cycles/render/nodes.h
index 417623c7562..9c4e643e727 100644
--- a/intern/cycles/render/nodes.h
+++ b/intern/cycles/render/nodes.h
@@ -370,6 +370,19 @@ class IESLightNode : public TextureNode {
   void get_slot();
 };
 
+class WhiteNoiseTextureNode : public ShaderNode {
+ public:
+  SHADER_NODE_CLASS(WhiteNoiseTextureNode)
+  virtual int get_group()
+  {
+    return NODE_GROUP_LEVEL_2;
+  }
+
+  int dimensions;
+  float3 vector;
+  float w;
+};
+
 class MappingNode : public ShaderNode {
  public:
   SHADER_NODE_CLASS(MappingNode)