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diff --git a/include/gal/opengl/glm/gtc/swizzle.inl b/include/gal/opengl/glm/gtc/swizzle.inl
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+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2013 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 gtc_swizzle
+/// @file glm/gtc/swizzle.inl
+/// @date 2011-01-15 / 2011-06-15
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+namespace glm
+{
+	template <typename T, template <typename> class vecType>
+	GLM_FUNC_QUALIFIER T swizzle
+	(
+		vecType<T> const & v,
+		comp x
+	)
+	{
+		assert(int(x) < int(vecType<T>::value_size));
+		return v[x];
+	}
+
+	template <typename T, template <typename> class vecType>
+	GLM_FUNC_QUALIFIER detail::tvec2<T> swizzle
+	(
+		vecType<T> const & v,
+		comp x, comp y
+	)
+	{
+		return detail::tvec2<T>(
+			v[x],
+			v[y]);
+	}
+
+	template <typename T, template <typename> class vecType>
+	GLM_FUNC_QUALIFIER detail::tvec3<T> swizzle
+	(
+		vecType<T> const & v,
+		comp x, comp y, comp z
+	)
+	{
+		return detail::tvec3<T>(
+			v[x],
+			v[y],
+			v[z]);
+	}
+
+	template <typename T, template <typename> class vecType>
+	GLM_FUNC_QUALIFIER detail::tvec4<T> swizzle
+	(
+		vecType<T> const & v,
+		comp x, comp y, comp z, comp w
+	)
+	{
+		return detail::tvec4<T>(v[x], v[y],	v[z], v[w]);
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER T& swizzle
+	(
+		detail::tvec4<T> & v,
+		comp x
+	)
+	{
+		return v[x];
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER detail::tref2<T> swizzle
+	(
+		detail::tvec4<T> & v,
+		comp x, comp y
+	)
+	{
+		return detail::tref2<T>(v[x], v[y]);
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER detail::tref3<T> swizzle
+	(
+		detail::tvec4<T> & v,
+		comp x, comp y, comp z
+	)
+	{
+		return detail::tref3<T>(v[x], v[y],	v[z]);
+	}
+
+	template <typename T>
+	GLM_FUNC_QUALIFIER detail::tref4<T> swizzle
+	(
+		detail::tvec4<T> & v,
+		comp x, comp y, comp z, comp w
+	)
+	{
+		return detail::tref4<T>(v[x], v[y],	v[z], v[w]);
+	}
+}//namespace glm