color_illuminant.h

// Description: Standard illuminants

#ifndef PASTELGFX_COLOR_ILLUMINANT_H
#define PASTELGFX_COLOR_ILLUMINANT_H

#include "pastel/gfx/color/color.h"
#include "pastel/gfx/color/color_space.h"
#include "pastel/gfx/color/color_space/color_xyy.h"

namespace Pastel
{

    // Standard illuminants (CIE 1931)

    //! Returns the XYZ coordinates of CIE illuminant E.
    inline Color xyzIlluminantE()
    {
        static const Color color(
            xyyToXyz(Color(
            (real32)1 / 3, (real32)1 / 3, 1)));

        return color;
    }

    //! Returns the XYZ coordinates of CIE illuminant D50.
    inline Color xyzIlluminantD50()
    {
        static const Color color(
            xyyToXyz(Color(
            0.34567, 0.35850, 1)));

        return color;
    }

    //! Returns the XYZ coordinates of CIE illuminant D65.
    inline Color xyzIlluminantD65()
    {
        static const Color color(
            xyyToXyz(Color(
            0.31271, 0.32902, 1)));

        return color;
    }

}

#endif