diff options
Diffstat (limited to 'intern/cycles/kernel/osl/shaders/node_float_curve.osl')
-rw-r--r-- | intern/cycles/kernel/osl/shaders/node_float_curve.osl | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/intern/cycles/kernel/osl/shaders/node_float_curve.osl b/intern/cycles/kernel/osl/shaders/node_float_curve.osl new file mode 100644 index 00000000000..f1f05fd88a9 --- /dev/null +++ b/intern/cycles/kernel/osl/shaders/node_float_curve.osl @@ -0,0 +1,32 @@ +/* + * Copyright 2011-2021 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 "node_ramp_util.h" +#include "stdcycles.h" + +shader node_float_curve(float ramp[] = {0.0}, + float min_x = 0.0, + float max_x = 1.0, + float ValueIn = 0.0, + float Factor = 0.0, + output float ValueOut = 0.0) +{ + float c = (ValueIn - min_x) / (max_x - min_x); + + ValueOut = rgb_ramp_lookup(ramp, c, 1, 1); + + ValueOut = mix(ValueIn, ValueOut, Factor); +} |