diff options
author | Sergey Sharybin <sergey.vfx@gmail.com> | 2015-07-18 23:09:20 +0300 |
---|---|---|
committer | Sergey Sharybin <sergey.vfx@gmail.com> | 2015-07-18 23:09:20 +0300 |
commit | 7d10798af22f683a8f55a8c361ad5676bd4160d2 (patch) | |
tree | ad762edb4d4489ec03cc88ea2f98da8c3eb9894e /intern/cycles/kernel/shaders | |
parent | 2f15a1f66e3092158d330db97a33dc8d087ca053 (diff) |
Cycles: Add voxel texture sampler shader node
The idea of this node is to sampling of 3D voxels at a given coordinate
supporting different mapping strategies (world space mapping, object
local space etc).
Currently not in use, it's a preparation step for supporting point density
textures.
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_voxel_texture.osl | 47 |
2 files changed, 48 insertions, 0 deletions
diff --git a/intern/cycles/kernel/shaders/CMakeLists.txt b/intern/cycles/kernel/shaders/CMakeLists.txt index 0b735ede701..81931463cad 100644 --- a/intern/cycles/kernel/shaders/CMakeLists.txt +++ b/intern/cycles/kernel/shaders/CMakeLists.txt @@ -74,6 +74,7 @@ set(SRC_OSL node_vector_transform.osl node_velvet_bsdf.osl node_voronoi_texture.osl + node_voxel_texture.osl node_wavelength.osl node_blackbody.osl node_wave_texture.osl diff --git a/intern/cycles/kernel/shaders/node_voxel_texture.osl b/intern/cycles/kernel/shaders/node_voxel_texture.osl new file mode 100644 index 00000000000..e45af62220f --- /dev/null +++ b/intern/cycles/kernel/shaders/node_voxel_texture.osl @@ -0,0 +1,47 @@ +/* + * Copyright 2011-2015 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_voxel_texture( + string filename = "", + string interpolation = "linear", + int use_mapping = 0, + matrix mapping = matrix(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), + point Vector = P, + output float Density = 0, + output color Color = 0) +{ + point p = Vector; + if (use_mapping) { + p = transform(mapping, p); + } + else { + p = transform("object", Vector); + matrix tfm; + if (getattribute("geom:generated_transform", tfm)) + p = transform(tfm, p); + } + if(p[0] < 0.0 || p[1] < 0.0 || p[2] < 0.0 || + p[0] > 1.0 || p[1] > 1.0 || p[2] > 1.0) + { + Density = 0; + Color = color(0, 0, 0); + } + else { + Color = (color)texture3d(filename, p, "wrap", "periodic", "interp", interpolation, "alpha", Density); + } +} |