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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/kernel/shaders | |
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/kernel/shaders')
-rw-r--r-- | intern/cycles/kernel/shaders/CMakeLists.txt | 1 | ||||
-rw-r--r-- | intern/cycles/kernel/shaders/node_white_noise_texture.osl | 39 |
2 files changed, 40 insertions, 0 deletions
diff --git a/intern/cycles/kernel/shaders/CMakeLists.txt b/intern/cycles/kernel/shaders/CMakeLists.txt index 63cef6e841b..c50bffe27b2 100644 --- a/intern/cycles/kernel/shaders/CMakeLists.txt +++ b/intern/cycles/kernel/shaders/CMakeLists.txt @@ -85,6 +85,7 @@ set(SRC_OSL node_wavelength.osl node_blackbody.osl node_wave_texture.osl + node_white_noise_texture.osl node_wireframe.osl node_hair_bsdf.osl node_principled_hair_bsdf.osl diff --git a/intern/cycles/kernel/shaders/node_white_noise_texture.osl b/intern/cycles/kernel/shaders/node_white_noise_texture.osl new file mode 100644 index 00000000000..f026fb4ab39 --- /dev/null +++ b/intern/cycles/kernel/shaders/node_white_noise_texture.osl @@ -0,0 +1,39 @@ +/* + * Copyright 2011-2013 Blender Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "stdosl.h" + +shader node_white_noise_texture(string dimensions = "3D", + point Vector = point(0.0, 0.0, 0.0), + float W = 0.0, + output float Value = 0.0) +{ + if (dimensions == "1D") { + Value = noise("hash", W); + } + else if (dimensions == "2D") { + Value = noise("hash", Vector[0], Vector[1]); + } + else if (dimensions == "3D") { + Value = noise("hash", Vector); + } + else if (dimensions == "4D") { + Value = noise("hash", Vector, W); + } + else { + warning("%s", "Unknown dimension!"); + } +} |