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author | OmarSquircleArt <omar.squircleart@gmail.com> | 2019-08-21 21:04:09 +0300 |
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committer | OmarSquircleArt <omar.squircleart@gmail.com> | 2019-08-21 21:04:09 +0300 |
commit | 133dfdd704b6a2a4d46337696773b331a44304ea (patch) | |
tree | e7465681db5a8783614fa2617ecb2455f1bef623 /intern/cycles/render/nodes.cpp | |
parent | 7f4a2fc437cf9a6decbda152bd7d36ce7a08929f (diff) |
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
Diffstat (limited to 'intern/cycles/render/nodes.cpp')
-rw-r--r-- | intern/cycles/render/nodes.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/intern/cycles/render/nodes.cpp b/intern/cycles/render/nodes.cpp index 8c8bb559c30..6435894d41a 100644 --- a/intern/cycles/render/nodes.cpp +++ b/intern/cycles/render/nodes.cpp @@ -1110,6 +1110,53 @@ void IESLightNode::compile(OSLCompiler &compiler) compiler.add(this, "node_ies_light"); } +/* White Noise Texture */ + +NODE_DEFINE(WhiteNoiseTextureNode) +{ + NodeType *type = NodeType::add("white_noise_texture", create, NodeType::SHADER); + + static NodeEnum dimensions_enum; + dimensions_enum.insert("1D", 1); + dimensions_enum.insert("2D", 2); + dimensions_enum.insert("3D", 3); + dimensions_enum.insert("4D", 4); + SOCKET_ENUM(dimensions, "Dimensions", dimensions_enum, 3); + + SOCKET_IN_POINT(vector, "Vector", make_float3(0.0f, 0.0f, 0.0f)); + SOCKET_IN_FLOAT(w, "W", 0.0f); + + SOCKET_OUT_FLOAT(value, "Value"); + + return type; +} + +WhiteNoiseTextureNode::WhiteNoiseTextureNode() : ShaderNode(node_type) +{ +} + +void WhiteNoiseTextureNode::compile(SVMCompiler &compiler) +{ + ShaderInput *vector_in = input("Vector"); + ShaderInput *w_in = input("W"); + ShaderOutput *value_out = output("Value"); + + int vector_stack_offset = compiler.stack_assign(vector_in); + int w_stack_offset = compiler.stack_assign(w_in); + int value_stack_offset = compiler.stack_assign(value_out); + + compiler.add_node(NODE_TEX_WHITE_NOISE, + dimensions, + compiler.encode_uchar4(vector_stack_offset, w_stack_offset), + value_stack_offset); +} + +void WhiteNoiseTextureNode::compile(OSLCompiler &compiler) +{ + compiler.parameter(this, "dimensions"); + compiler.add(this, "node_white_noise_texture"); +} + /* Musgrave Texture */ NODE_DEFINE(MusgraveTextureNode) |