27 lines
471 B
C
27 lines
471 B
C
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/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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#ifndef cglm_color_h
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#define cglm_color_h
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#include "common.h"
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#include "vec3.h"
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/*!
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* @brief averages the color channels into one value
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*
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* @param[in] rgb RGB color
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*/
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CGLM_INLINE
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float
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glm_luminance(vec3 rgb) {
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vec3 l = {0.212671f, 0.715160f, 0.072169f};
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return glm_dot(rgb, l);
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}
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#endif /* cglm_color_h */
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