diff options
author | Brecht Van Lommel <brecht@blender.org> | 2021-10-24 15:19:19 +0300 |
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committer | Brecht Van Lommel <brecht@blender.org> | 2021-10-26 16:36:39 +0300 |
commit | d7d40745fa09061a3117bd3669c5a46bbf611eae (patch) | |
tree | 8dbaca086ecbb09aad62c25e9ece66332fe79af3 /intern/cycles/kernel/osl/shaders/node_map_range.osl | |
parent | b698fe1e047e56e8ed67ba47464c0017d9c50eea (diff) |
Cycles: changes to source code folders structure
* Split render/ into scene/ and session/. The scene/ folder now contains the
scene and its nodes. The session/ folder contains the render session and
associated data structures like drivers and render buffers.
* Move top level kernel headers into new folders kernel/camera/, kernel/film/,
kernel/light/, kernel/sample/, kernel/util/
* Move integrator related kernel headers into kernel/integrator/
* Move OSL shaders from kernel/shaders/ to kernel/osl/shaders/
For patches and branches, git merge and rebase should be able to detect the
renames and move over code to the right file.
Diffstat (limited to 'intern/cycles/kernel/osl/shaders/node_map_range.osl')
-rw-r--r-- | intern/cycles/kernel/osl/shaders/node_map_range.osl | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/node_map_range.osl b/intern/cycles/kernel/osl/shaders/node_map_range.osl new file mode 100644 index 00000000000..2fcc664a80e --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_map_range.osl @@ -0,0 +1,58 @@ +/* + * 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 "stdcycles.h" + +float safe_divide(float a, float b) +{ + return (b != 0.0) ? a / b : 0.0; +} + +float smootherstep(float edge0, float edge1, float x) +{ + float t = clamp(safe_divide((x - edge0), (edge1 - edge0)), 0.0, 1.0); + return t * t * t * (t * (t * 6.0 - 15.0) + 10.0); +} + +shader node_map_range(string range_type = "linear", + float Value = 1.0, + float FromMin = 0.0, + float FromMax = 1.0, + float ToMin = 0.0, + float ToMax = 1.0, + float Steps = 4.0, + output float Result = 0.0) +{ + if (FromMax != FromMin) { + float Factor = Value; + if (range_type == "stepped") { + Factor = (Value - FromMin) / (FromMax - FromMin); + Factor = (Steps > 0) ? floor(Factor * (Steps + 1.0)) / Steps : 0.0; + } + else if (range_type == "smoothstep") { + Factor = (FromMin > FromMax) ? 1.0 - smoothstep(FromMax, FromMin, Value) : + smoothstep(FromMin, FromMax, Value); + } + else if (range_type == "smootherstep") { + Factor = (FromMin > FromMax) ? 1.0 - smootherstep(FromMax, FromMin, Value) : + smootherstep(FromMin, FromMax, Value); + } + else { + Factor = (Value - FromMin) / (FromMax - FromMin); + } + Result = ToMin + Factor * (ToMax - ToMin); + } +} |