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18 lines
518 B
Text
18 lines
518 B
Text
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#include "stdcycles.h"
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shader node_brightness(color ColorIn = 0.8,
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float Bright = 0.0,
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float Contrast = 0.0,
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output color ColorOut = 0.8)
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{
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float a = 1.0 + Contrast;
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float b = Bright - Contrast * 0.5;
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ColorOut[0] = max(a * ColorIn[0] + b, 0.0);
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ColorOut[1] = max(a * ColorIn[1] + b, 0.0);
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ColorOut[2] = max(a * ColorIn[2] + b, 0.0);
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}
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