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diff --git a/include/gal/opengl/glm/gtx/matrix_operation.inl b/include/gal/opengl/glm/gtx/matrix_operation.inl
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+++ b/include/gal/opengl/glm/gtx/matrix_operation.inl
@@ -0,0 +1,124 @@
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// OpenGL Mathematics Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// Created : 2009-08-29
+// Updated : 2009-08-29
+// Licence : This source is under MIT License
+// File    : glm/gtx/matrix_operation.inl
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace glm
+{
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat2x2<valType> diagonal2x2
+	(
+		detail::tvec2<valType> const & v
+	)
+	{
+		detail::tmat2x2<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat2x3<valType> diagonal2x3
+	(
+		detail::tvec2<valType> const & v
+	)
+	{
+		detail::tmat2x3<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat2x4<valType> diagonal2x4
+	(
+		detail::tvec2<valType> const & v
+	)
+	{
+		detail::tmat2x4<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat3x2<valType> diagonal3x2
+	(
+		detail::tvec2<valType> const & v
+	)
+	{
+		detail::tmat3x2<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat3x3<valType> diagonal3x3
+	(
+		detail::tvec3<valType> const & v
+	)
+	{
+		detail::tmat3x3<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		Result[2][2] = v[2];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat3x4<valType> diagonal3x4
+	(
+		detail::tvec3<valType> const & v
+	)
+	{
+		detail::tmat3x4<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		Result[2][2] = v[2];
+		return Result;
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat4x4<valType> diagonal4x4
+	(
+		detail::tvec4<valType> const & v
+	)
+	{
+		detail::tmat4x4<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		Result[2][2] = v[2];
+		Result[3][3] = v[3];
+		return Result;		
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat4x3<valType> diagonal4x3
+	(
+		detail::tvec3<valType> const & v
+	)
+	{
+		detail::tmat4x3<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		Result[2][2] = v[2];
+		return Result;		
+	}
+
+	template <typename valType> 
+	GLM_FUNC_QUALIFIER detail::tmat4x2<valType> diagonal4x2
+	(
+		detail::tvec2<valType> const & v
+	)
+	{
+		detail::tmat4x2<valType> Result(valType(1));
+		Result[0][0] = v[0];
+		Result[1][1] = v[1];
+		return Result;		
+	}
+}//namespace glm