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///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2005-12-21
// Updated : 2006-11-13
// Licence : This source is under MIT License
// File    : glm/gtx/transform2.hpp
///////////////////////////////////////////////////////////////////////////////////////////////////
// Dependency:
// - GLM core
// - GLM_GTX_transform
///////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef glm_gtx_transform2
#define glm_gtx_transform2

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

#if(defined(GLM_MESSAGES) && !defined(glm_ext))
#	pragma message("GLM: GLM_GTX_transform2 extension included")
#endif

namespace glm{
namespace gtx{
namespace transform2 ///< GLM_GTX_transform2 extension: Add extra transformation matrices
{
	using namespace gtx::transform;

	/// \addtogroup gtx_transform2
	/// @{

	//! Transforms a matrix with a shearing on X axis.
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat3x3<T> shearX2D(
		detail::tmat3x3<T> const & m, 
		T y);

	//! Transforms a matrix with a shearing on Y axis.
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat3x3<T> shearY2D(
		detail::tmat3x3<T> const & m, 
		T x);

	//! Transforms a matrix with a shearing on X axis
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat4x4<T> shearX3D(
		const detail::tmat4x4<T> & m,
		T y, 
		T z);
		
	//! Transforms a matrix with a shearing on Y axis.
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat4x4<T> shearY3D(
		const detail::tmat4x4<T> & m, 
		T x, 
		T z);
		
	//! Transforms a matrix with a shearing on Z axis. 
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat4x4<T> shearZ3D(
		const detail::tmat4x4<T> & m, 
		T x, 
		T y);

	//template <typename T> GLM_FUNC_QUALIFIER detail::tmat4x4<T> shear(const detail::tmat4x4<T> & m, shearPlane, planePoint, angle)
	// Identity + tan(angle) * cross(Normal, OnPlaneVector)     0
	// - dot(PointOnPlane, normal) * OnPlaneVector              1

	// Reflect functions seem to don't work
	//template <typename T> detail::tmat3x3<T> reflect2D(const detail::tmat3x3<T> & m, const detail::tvec3<T>& normal){return reflect2DGTX(m, normal);}									//!< \brief Build a reflection matrix (from GLM_GTX_transform2 extension)
	//template <typename T> detail::tmat4x4<T> reflect3D(const detail::tmat4x4<T> & m, const detail::tvec3<T>& normal){return reflect3DGTX(m, normal);}									//!< \brief Build a reflection matrix (from GLM_GTX_transform2 extension)
		
	//! Build planar projection matrix along normal axis.
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat3x3<T> proj2D(
		const detail::tmat3x3<T> & m, 
		const detail::tvec3<T>& normal);
				
	//! Build planar projection matrix along normal axis.
	//! From GLM_GTX_transform2 extension.
	template <typename T> 
	detail::tmat4x4<T> proj3D(
		const detail::tmat4x4<T> & m, 
		const detail::tvec3<T>& normal);

	//! Build a scale bias matrix. 
	//! From GLM_GTX_transform2 extension.
	template <typename valType> 
	detail::tmat4x4<valType> scaleBias(
		valType scale, 
		valType bias);

	//! Build a scale bias matrix.
	//! From GLM_GTX_transform2 extension.
	template <typename valType> 
	detail::tmat4x4<valType> scaleBias(
		detail::tmat4x4<valType> const & m, 
		valType scale, 
		valType bias);

	/// @}
}// namespace transform2
}// namespace gtx
}// namespace glm

#include "transform2.inl"

namespace glm{using namespace gtx::transform2;}

#endif//glm_gtx_transform2