text: ///////////////////////////////////////////////////////////////////////////////////
  /// OpenGL Mathematics (glm.g-truc.net)
  ///
  /// Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
  /// Permission is hereby granted, free of charge, to any person obtaining a copy
  /// of this software and associated documentation files (the "Software"), to deal
  /// in the Software without restriction, including without limitation the rights
  /// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  /// copies of the Software, and to permit persons to whom the Software is
  /// furnished to do so, subject to the following conditions:
  ///
  /// The above copyright notice and this permission notice shall be included in
  /// all copies or substantial portions of the Software.
  ///
  /// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  /// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  /// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  /// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  /// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  /// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  /// THE SOFTWARE.
  ///
  /// @ref core
  /// @file glm/core/type_mat4x2.inl
  /// @date 2006-10-01 / 2011-06-15
  /// @author Christophe Riccio
  ///////////////////////////////////////////////////////////////////////////////////
  
  namespace glm{
  namespace detail
  {
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER GLM_CONSTEXPR length_t tmat4x2<T, P>::length() const
  	{
  		return 4;
  	}
  
  	//////////////////////////////////////
  	// Accesses
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER typename tmat4x2<T, P>::col_type &
  	tmat4x2<T, P>::operator[]
  	(
  		length_t i
  	)
  	{
  		assert(i < this->length());
  		return this->value[i];
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER typename tmat4x2<T, P>::col_type const &
  	tmat4x2<T, P>::operator[]
  	(
  		length_t i
  	) const
  	{
  		assert(i < this->length());
  		return this->value[i];
  	}
  
  	//////////////////////////////////////////////////////////////
  	// Constructors
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2()
  	{
  		value_type const Zero(0);
  		value_type const One(1);
  		this->value[0] = col_type(One, Zero);
  		this->value[1] = col_type(Zero, One);
  		this->value[2] = col_type(Zero, Zero);
  		this->value[3] = col_type(Zero, Zero);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2(
  		tmat4x2<T, P> const & m)
  	{
  		this->value[0] = m.value[0];
  		this->value[1] = m.value[1];
  		this->value[2] = m.value[2];
  		this->value[3] = m.value[3];
  	}
  
  	template <typename T, precision P>
  	template <precision Q>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2(
  		tmat4x2<T, Q> const & m)
  	{
  		this->value[0] = m.value[0];
  		this->value[1] = m.value[1];
  		this->value[2] = m.value[2];
  		this->value[3] = m.value[3];
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2(ctor)
  	{}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		T const & s
  	)
  	{
  		value_type const Zero(0);
  		this->value[0] = col_type(s, Zero);
  		this->value[1] = col_type(Zero, s);
  		this->value[2] = col_type(Zero, Zero);
  		this->value[3] = col_type(Zero, Zero);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		T const & x0, T const & y0,
  		T const & x1, T const & y1,
  		T const & x2, T const & y2,
  		T const & x3, T const & y3
  	)
  	{
  		this->value[0] = col_type(x0, y0);
  		this->value[1] = col_type(x1, y1);
  		this->value[2] = col_type(x2, y2);
  		this->value[3] = col_type(x3, y3);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		col_type const & v0,
  		col_type const & v1,
  		col_type const & v2,
  		col_type const & v3
  	)
  	{
  		this->value[0] = v0;
  		this->value[1] = v1;
  		this->value[2] = v2;
  		this->value[3] = v3;
  	}
  
  	//////////////////////////////////////
  	// Conversion constructors
  
  	template <typename T, precision P>
  	template <
  		typename X1, typename Y1,
  		typename X2, typename Y2,
  		typename X3, typename Y3,
  		typename X4, typename Y4>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		X1 const & x1, Y1 const & y1,
  		X2 const & x2, Y2 const & y2,
  		X3 const & x3, Y3 const & y3,
  		X4 const & x4, Y4 const & y4
  	)
  	{
  		this->value[0] = col_type(static_cast<T>(x1), value_type(y1));
  		this->value[1] = col_type(static_cast<T>(x2), value_type(y2));
  		this->value[2] = col_type(static_cast<T>(x3), value_type(y3));
  		this->value[3] = col_type(static_cast<T>(x4), value_type(y4));
  	}
  
  	template <typename T, precision P>
  	template <typename V1, typename V2, typename V3, typename V4>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tvec2<V1, P> const & v1,
  		tvec2<V2, P> const & v2,
  		tvec2<V3, P> const & v3,
  		tvec2<V4, P> const & v4
  	)
  	{
  		this->value[0] = col_type(v1);
  		this->value[1] = col_type(v2);
  		this->value[2] = col_type(v3);
  		this->value[3] = col_type(v4);
  	}
  
  	//////////////////////////////////////
  	// Conversion
  	template <typename T, precision P>
  	template <typename U, precision Q>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat4x2<U, Q> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(m[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat2x2<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(static_cast<T>(0));
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat3x3<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat4x4<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(m[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat2x3<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(static_cast<T>(0));
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat3x2<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat2x4<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(static_cast<T>(0));
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat4x3<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(m[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>::tmat4x2
  	(
  		tmat3x4<T, P> const & m
  	)
  	{
  		this->value[0] = col_type(m[0]);
  		this->value[1] = col_type(m[1]);
  		this->value[2] = col_type(m[2]);
  		this->value[3] = col_type(static_cast<T>(0));
  	}
  
  	//////////////////////////////////////////////////////////////
  	// Unary updatable operators
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>& tmat4x2<T, P>::operator=
  	(
  		tmat4x2<T, P> const & m
  	)
  	{
  		this->value[0] = m[0];
  		this->value[1] = m[1];
  		this->value[2] = m[2];
  		this->value[3] = m[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P>& tmat4x2<T, P>::operator=
  	(
  		tmat4x2<U, P> const & m
  	)
  	{
  		this->value[0] = m[0];
  		this->value[1] = m[1];
  		this->value[2] = m[2];
  		this->value[3] = m[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator+= (U s)
  	{
  		this->value[0] += s;
  		this->value[1] += s;
  		this->value[2] += s;
  		this->value[3] += s;
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator+= (tmat4x2<U, P> const & m)
  	{
  		this->value[0] += m[0];
  		this->value[1] += m[1];
  		this->value[2] += m[2];
  		this->value[3] += m[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator-= (U s)
  	{
  		this->value[0] -= s;
  		this->value[1] -= s;
  		this->value[2] -= s;
  		this->value[3] -= s;
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator-= (tmat4x2<U, P> const & m)
  	{
  		this->value[0] -= m[0];
  		this->value[1] -= m[1];
  		this->value[2] -= m[2];
  		this->value[3] -= m[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator*= (U s)
  	{
  		this->value[0] *= s;
  		this->value[1] *= s;
  		this->value[2] *= s;
  		this->value[3] *= s;
  		return *this;
  	}
  
  	template <typename T, precision P>
  	template <typename U>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator/= (U s)
  	{
  		this->value[0] /= s;
  		this->value[1] /= s;
  		this->value[2] /= s;
  		this->value[3] /= s;
  		return *this;
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator++ ()
  	{
  		++this->value[0];
  		++this->value[1];
  		++this->value[2];
  		++this->value[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> & tmat4x2<T, P>::operator-- ()
  	{
  		--this->value[0];
  		--this->value[1];
  		--this->value[2];
  		--this->value[3];
  		return *this;
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> tmat4x2<T, P>::operator++(int)
  	{
  		tmat4x2<T, P> Result(*this);
  		++*this;
  		return Result;
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> tmat4x2<T, P>::operator--(int)
  	{
  		tmat4x2<T, P> Result(*this);
  		--*this;
  		return Result;
  	}
  
  	//////////////////////////////////////////////////////////////
  	// Binary operators
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator+
  	(
  		tmat4x2<T, P> const & m,
  		T const & s
  	)
  	{
  		return tmat4x2<T, P>(
  			m[0] + s,
  			m[1] + s,
  			m[2] + s,
  			m[3] + s);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator+
  	(
  		tmat4x2<T, P> const & m1,
  		tmat4x2<T, P> const & m2
  	)
  	{
  		return tmat4x2<T, P>(
  			m1[0] + m2[0],
  			m1[1] + m2[1],
  			m1[2] + m2[2],
  			m1[3] + m2[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator-
  	(
  		tmat4x2<T, P> const & m,
  		T const & s
  	)
  	{
  		return tmat4x2<T, P>(
  			m[0] - s,
  			m[1] - s,
  			m[2] - s,
  			m[3] - s);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator-
  	(
  		tmat4x2<T, P> const & m1,
  		tmat4x2<T, P> const & m2
  	)
  	{
  		return tmat4x2<T, P>(
  			m1[0] - m2[0],
  			m1[1] - m2[1],
  			m1[2] - m2[2],
  			m1[3] - m2[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator*
  	(
  		tmat4x2<T, P> const & m,
  		T const & s
  	)
  	{
  		return tmat4x2<T, P>(
  			m[0] * s,
  			m[1] * s,
  			m[2] * s,
  			m[3] * s);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator*
  	(
  		T const & s,
  		tmat4x2<T, P> const & m
  	)
  	{
  		return tmat4x2<T, P>(
  			m[0] * s,
  			m[1] * s,
  			m[2] * s,
  			m[3] * s);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER typename tmat4x2<T, P>::col_type operator*
  	(
  		tmat4x2<T, P> const & m,
  		typename tmat4x2<T, P>::row_type const & v
  	)
  	{
  		return typename tmat4x2<T, P>::col_type(
  			m[0][0] * v.x + m[1][0] * v.y + m[2][0] * v.z + m[3][0] * v.w,
  			m[0][1] * v.x + m[1][1] * v.y + m[2][1] * v.z + m[3][1] * v.w);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER typename tmat4x2<T, P>::row_type operator*
  	(
  		typename tmat4x2<T, P>::col_type const & v,
  		tmat4x2<T, P> const & m
  	)
  	{
  		return typename tmat4x2<T, P>::row_type(
  			v.x * m[0][0] + v.y * m[0][1],
  			v.x * m[1][0] + v.y * m[1][1],
  			v.x * m[2][0] + v.y * m[2][1],
  			v.x * m[3][0] + v.y * m[3][1]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat2x2<T, P> operator*
  	(
  		tmat4x2<T, P> const & m1,
  		tmat2x4<T, P> const & m2
  	)
  	{
  		T const SrcA00 = m1[0][0];
  		T const SrcA01 = m1[0][1];
  		T const SrcA10 = m1[1][0];
  		T const SrcA11 = m1[1][1];
  		T const SrcA20 = m1[2][0];
  		T const SrcA21 = m1[2][1];
  		T const SrcA30 = m1[3][0];
  		T const SrcA31 = m1[3][1];
  
  		T const SrcB00 = m2[0][0];
  		T const SrcB01 = m2[0][1];
  		T const SrcB02 = m2[0][2];
  		T const SrcB03 = m2[0][3];
  		T const SrcB10 = m2[1][0];
  		T const SrcB11 = m2[1][1];
  		T const SrcB12 = m2[1][2];
  		T const SrcB13 = m2[1][3];
  
  		tmat2x2<T, P> Result(tmat2x2<T, P>::_null);
  		Result[0][0] = SrcA00 * SrcB00 + SrcA10 * SrcB01 + SrcA20 * SrcB02 + SrcA30 * SrcB03;
  		Result[0][1] = SrcA01 * SrcB00 + SrcA11 * SrcB01 + SrcA21 * SrcB02 + SrcA31 * SrcB03;
  		Result[1][0] = SrcA00 * SrcB10 + SrcA10 * SrcB11 + SrcA20 * SrcB12 + SrcA30 * SrcB13;
  		Result[1][1] = SrcA01 * SrcB10 + SrcA11 * SrcB11 + SrcA21 * SrcB12 + SrcA31 * SrcB13;
  		return Result;
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat3x2<T, P> operator*
  	(
  		tmat4x2<T, P> const & m1,
  		tmat3x4<T, P> const & m2
  	)
  	{
  		return tmat3x2<T, P>(
  			m1[0][0] * m2[0][0] + m1[1][0] * m2[0][1] + m1[2][0] * m2[0][2] + m1[3][0] * m2[0][3],
  			m1[0][1] * m2[0][0] + m1[1][1] * m2[0][1] + m1[2][1] * m2[0][2] + m1[3][1] * m2[0][3],
  			m1[0][0] * m2[1][0] + m1[1][0] * m2[1][1] + m1[2][0] * m2[1][2] + m1[3][0] * m2[1][3],
  			m1[0][1] * m2[1][0] + m1[1][1] * m2[1][1] + m1[2][1] * m2[1][2] + m1[3][1] * m2[1][3],
  			m1[0][0] * m2[2][0] + m1[1][0] * m2[2][1] + m1[2][0] * m2[2][2] + m1[3][0] * m2[2][3],
  			m1[0][1] * m2[2][0] + m1[1][1] * m2[2][1] + m1[2][1] * m2[2][2] + m1[3][1] * m2[2][3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator*
  	(
  		tmat4x2<T, P> const & m1,
  		tmat4x4<T, P> const & m2
  	)
  	{
  		return tmat4x2<T, P>(
  			m1[0][0] * m2[0][0] + m1[1][0] * m2[0][1] + m1[2][0] * m2[0][2] + m1[3][0] * m2[0][3],
  			m1[0][1] * m2[0][0] + m1[1][1] * m2[0][1] + m1[2][1] * m2[0][2] + m1[3][1] * m2[0][3],
  			m1[0][0] * m2[1][0] + m1[1][0] * m2[1][1] + m1[2][0] * m2[1][2] + m1[3][0] * m2[1][3],
  			m1[0][1] * m2[1][0] + m1[1][1] * m2[1][1] + m1[2][1] * m2[1][2] + m1[3][1] * m2[1][3],
  			m1[0][0] * m2[2][0] + m1[1][0] * m2[2][1] + m1[2][0] * m2[2][2] + m1[3][0] * m2[2][3],
  			m1[0][1] * m2[2][0] + m1[1][1] * m2[2][1] + m1[2][1] * m2[2][2] + m1[3][1] * m2[2][3],
  			m1[0][0] * m2[3][0] + m1[1][0] * m2[3][1] + m1[2][0] * m2[3][2] + m1[3][0] * m2[3][3],
  			m1[0][1] * m2[3][0] + m1[1][1] * m2[3][1] + m1[2][1] * m2[3][2] + m1[3][1] * m2[3][3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator/
  	(
  		tmat4x2<T, P> const & m,
  		T const & s
  	)
  	{
  		return tmat4x2<T, P>(
  			m[0] / s,
  			m[1] / s,
  			m[2] / s,
  			m[3] / s);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> operator/
  	(
  		T const & s,
  		tmat4x2<T, P> const & m
  	)
  	{
  		return tmat4x2<T, P>(
  			s / m[0],
  			s / m[1],
  			s / m[2],
  			s / m[3]);
  	}
  
  	// Unary constant operators
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER tmat4x2<T, P> const operator-
  	(
  		tmat4x2<T, P> const & m
  	)
  	{
  		return tmat4x2<T, P>(
  			-m[0],
  			-m[1],
  			-m[2],
  			-m[3]);
  	}
  
  	//////////////////////////////////////
  	// Boolean operators
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER bool operator==
  	(
  		tmat4x2<T, P> const & m1,
  		tmat4x2<T, P> const & m2
  	)
  	{
  		return (m1[0] == m2[0]) && (m1[1] == m2[1]) && (m1[2] == m2[2]) && (m1[3] == m2[3]);
  	}
  
  	template <typename T, precision P>
  	GLM_FUNC_QUALIFIER bool operator!=
  	(
  		tmat4x2<T, P> const & m1,
  		tmat4x2<T, P> const & m2
  	)
  	{
  		return (m1[0] != m2[0]) || (m1[1] != m2[1]) || (m1[2] != m2[2]) || (m1[3] != m2[3]);
  	}
  } //namespace detail
  } //namespace glm
  