raytracing/Glm/gtx/color_space.hpp

///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
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/// @ref gtx_color_space
/// @file glm/gtx/color_space.hpp
/// @date 2005-12-21 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
///
/// @defgroup gtx_color_space GLM_GTX_color_space
/// @ingroup gtx
/// 
/// @brief Related to RGB to HSV conversions and operations.
/// 
/// <glm/gtx/color_space.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#ifndef GLM_GTX_color_space
#define GLM_GTX_color_space GLM_VERSION

// Dependency:
#include "../glm.hpp"

#if(defined(GLM_MESSAGES) && !defined(glm_ext))
#	pragma message("GLM: GLM_GTX_color_space extension included")
#endif

namespace glm
{
	/// @addtogroup gtx_color_space
	/// @{

	/// Converts a color from HSV color space to its color in RGB color space.
	/// @see gtx_color_space
    template <typename valType> 
	detail::tvec3<valType> rgbColor(
		detail::tvec3<valType> const & hsvValue);

	/// Converts a color from RGB color space to its color in HSV color space.
	/// @see gtx_color_space
    template <typename valType> 
	detail::tvec3<valType> hsvColor(
		detail::tvec3<valType> const & rgbValue);
		
	/// Build a saturation matrix.
	/// @see gtx_color_space
    template <typename valType> 
	detail::tmat4x4<valType> saturation(
		valType const s);

    /// Modify the saturation of a color.
	/// @see gtx_color_space
	template <typename valType> 
	detail::tvec3<valType> saturation(
		valType const s, 
		detail::tvec3<valType> const & color);
		
	/// Modify the saturation of a color.
	/// @see gtx_color_space
    template <typename valType> 
	detail::tvec4<valType> saturation(
		valType const s, 
		detail::tvec4<valType> const & color);
		
	/// Compute color luminosity associating ratios (0.33, 0.59, 0.11) to RGB canals.
	/// @see gtx_color_space
	template <typename valType> 
	valType luminosity(
		detail::tvec3<valType> const & color);

	/// @}
}//namespace glm

#include "color_space.inl"

#endif//GLM_GTX_color_space