Source/color_space.cpp

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#include "color_space.hpp"
#include <cmath>
 
namespace rendering_engine
{
 
float ColorSpace::SRGBToLinear(float c)
{
    if (c <= 0.04045f)
        return c / 12.92f;
    else
        return std::pow((c + 0.055f) / 1.055f, 2.4f);
}
 
glm::vec3 ColorSpace::SRGBToLinear(const glm::vec3& color)
{
    return glm::vec3(
        SRGBToLinear(color.r),
        SRGBToLinear(color.g),
        SRGBToLinear(color.b)
    );
}
 
float ColorSpace::LinearToSRGB(float c)
{
    if (c <= 0.0031308f)
        return 12.92f * c;
    else
        return 1.055f * std::pow(c, 1.0f / 2.4f) - 0.055f;
}
 
glm::vec3 ColorSpace::LinearToSRGB(const glm::vec3& color)
{
    return glm::vec3(
        LinearToSRGB(color.r),
        LinearToSRGB(color.g),
        LinearToSRGB(color.b)
    );
}
 
} // namespace rendering_engine