forked from bartvdbraak/blender
40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
/*
|
|
* 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 "node_ramp_util.h"
|
|
#include "stdcycles.h"
|
|
|
|
shader node_rgb_curves(color ramp[] = {0.0},
|
|
float min_x = 0.0,
|
|
float max_x = 1.0,
|
|
|
|
color ColorIn = 0.0,
|
|
float Fac = 0.0,
|
|
output color ColorOut = 0.0)
|
|
{
|
|
color c = (ColorIn - color(min_x, min_x, min_x)) / (max_x - min_x);
|
|
|
|
color r = rgb_ramp_lookup(ramp, c[0], 1, 1);
|
|
color g = rgb_ramp_lookup(ramp, c[1], 1, 1);
|
|
color b = rgb_ramp_lookup(ramp, c[2], 1, 1);
|
|
|
|
ColorOut[0] = r[0];
|
|
ColorOut[1] = g[1];
|
|
ColorOut[2] = b[2];
|
|
|
|
ColorOut = mix(ColorIn, ColorOut, Fac);
|
|
}
|