Differential D14393 Diff 49449 intern/cycles/kernel/osl/shaders/node_rgb_curves.osl

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	/* SPDX-License-Identifier: Apache-2.0			/* SPDX-License-Identifier: Apache-2.0
	* Copyright 2011-2022 Blender Foundation */			* Copyright 2011-2022 Blender Foundation */

	#include "node_ramp_util.h"			#include "node_ramp_util.h"
	#include "stdcycles.h"			#include "stdcycles.h"

	shader node_rgb_curves(color ramp[] = {0.0},			shader node_rgb_curves(color ramp[] = {0.0},
	float min_x = 0.0,			float min_x = 0.0,
	float max_x = 1.0,			float max_x = 1.0,
				int extrapolate = 1,

	color ColorIn = 0.0,			color ColorIn = 0.0,
	float Fac = 0.0,			float Fac = 0.0,
	output color ColorOut = 0.0)			output color ColorOut = 0.0)
	{			{
	color c = (ColorIn - color(min_x, min_x, min_x)) / (max_x - min_x);			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 r = rgb_ramp_lookup(ramp, c[0], 1, extrapolate);
	color g = rgb_ramp_lookup(ramp, c[1], 1, 1);			color g = rgb_ramp_lookup(ramp, c[1], 1, extrapolate);
	color b = rgb_ramp_lookup(ramp, c[2], 1, 1);			color b = rgb_ramp_lookup(ramp, c[2], 1, extrapolate);

	ColorOut[0] = r[0];			ColorOut[0] = r[0];
	ColorOut[1] = g[1];			ColorOut[1] = g[1];
	ColorOut[2] = b[2];			ColorOut[2] = b[2];

	ColorOut = mix(ColorIn, ColorOut, Fac);			ColorOut = mix(ColorIn, ColorOut, Fac);
	}			}