ACE3/extensions/common/glm/gtx/intersect.hpp

///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
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/// @ref gtx_intersect
/// @file glm/gtx/intersect.hpp
/// @date 2007-04-03 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtx_closest_point (dependence)
///
/// @defgroup gtx_intersect GLM_GTX_intersect
/// @ingroup gtx
/// 
/// @brief Add intersection functions
/// 
/// <glm/gtx/intersect.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#pragma once

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

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

namespace glm
{
    /// @addtogroup gtx_intersect
    /// @{

    //! Compute the intersection of a ray and a triangle.
    //! Ray direction and plane normal must be unit length.
    //! From GLM_GTX_intersect extension.
    template <typename genType>
    GLM_FUNC_DECL bool intersectRayPlane(
        genType const & orig, genType const & dir,
        genType const & planeOrig, genType const & planeNormal,
        typename genType::value_type & intersectionDistance);

    //! Compute the intersection of a ray and a triangle.
    //! From GLM_GTX_intersect extension.
    template <typename genType>
    GLM_FUNC_DECL bool intersectRayTriangle(
        genType const & orig, genType const & dir,
        genType const & vert0, genType const & vert1, genType const & vert2,
        genType & baryPosition);

    //! Compute the intersection of a line and a triangle.
    //! From GLM_GTX_intersect extension.
    template <typename genType>
    GLM_FUNC_DECL bool intersectLineTriangle(
        genType const & orig, genType const & dir,
        genType const & vert0, genType const & vert1, genType const & vert2,
        genType & position);

    //! Compute the intersection distance of a ray and a sphere. 
    //! The ray direction vector is unit length.
    //! From GLM_GTX_intersect extension.
    template <typename genType>
    GLM_FUNC_DECL bool intersectRaySphere(
        genType const & rayStarting, genType const & rayNormalizedDirection,
        genType const & sphereCenter, typename genType::value_type const sphereRadiusSquered,
        typename genType::value_type & intersectionDistance);

    //! Compute the intersection of a ray and a sphere.
    //! From GLM_GTX_intersect extension.
    template <typename genType>
    GLM_FUNC_DECL bool intersectRaySphere(
        genType const & rayStarting, genType const & rayNormalizedDirection,
        genType const & sphereCenter, const typename genType::value_type sphereRadius,
        genType & intersectionPosition, genType & intersectionNormal);

    //! Compute the intersection of a line and a sphere.
    //! From GLM_GTX_intersect extension
    template <typename genType>
    GLM_FUNC_DECL bool intersectLineSphere(
        genType const & point0, genType const & point1,
        genType const & sphereCenter, typename genType::value_type sphereRadius,
        genType & intersectionPosition1, genType & intersectionNormal1, 
        genType & intersectionPosition2 = genType(), genType & intersectionNormal2 = genType());

    /// @}
}//namespace glm

#include "intersect.inl"