diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shaders/node_brightness.osl')
-rw-r--r-- | intern/cycles/kernel/osl/shaders/node_brightness.osl | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/node_brightness.osl b/intern/cycles/kernel/osl/shaders/node_brightness.osl new file mode 100644 index 00000000000..019edfb79a3 --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_brightness.osl @@ -0,0 +1,30 @@ +/* + * 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" + +shader node_brightness(color ColorIn = 0.8, + float Bright = 0.0, + float Contrast = 0.0, + output color ColorOut = 0.8) +{ + float a = 1.0 + Contrast; + float b = Bright - Contrast * 0.5; + + ColorOut[0] = max(a * ColorIn[0] + b, 0.0); + ColorOut[1] = max(a * ColorIn[1] + b, 0.0); + ColorOut[2] = max(a * ColorIn[2] + b, 0.0); +} |