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diff --git a/external/glm/include/glm/gtx/range.hpp b/external/glm/include/glm/gtx/range.hpp
new file mode 100644
index 0000000..50c5e57
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+++ b/external/glm/include/glm/gtx/range.hpp
@@ -0,0 +1,96 @@
+/// @ref gtx_range
+/// @file glm/gtx/range.hpp
+/// @author Joshua Moerman
+///
+/// @defgroup gtx_range GLM_GTX_range
+/// @ingroup gtx
+///
+/// Include <glm/gtx/range.hpp> to use the features of this extension.
+///
+/// Defines begin and end for vectors and matrices. Useful for range-based for loop.
+/// The range is defined over the elements, not over columns or rows (e.g. mat4 has 16 elements).
+
+#pragma once
+
+// Dependencies
+#include "../detail/setup.hpp"
+
+#ifndef GLM_ENABLE_EXPERIMENTAL
+#	error "GLM: GLM_GTX_range is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it."
+#elif GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	pragma message("GLM: GLM_GTX_range extension included")
+#endif
+
+#include "../gtc/type_ptr.hpp"
+#include "../gtc/vec1.hpp"
+
+namespace glm
+{
+	/// @addtogroup gtx_range
+	/// @{
+
+#	if GLM_COMPILER & GLM_COMPILER_VC
+#		pragma warning(push)
+#		pragma warning(disable : 4100) // unreferenced formal parameter
+#	endif
+
+	template<typename T, qualifier Q>
+	inline length_t components(vec<1, T, Q> const& v)
+	{
+		return v.length();
+	}
+
+	template<typename T, qualifier Q>
+	inline length_t components(vec<2, T, Q> const& v)
+	{
+		return v.length();
+	}
+
+	template<typename T, qualifier Q>
+	inline length_t components(vec<3, T, Q> const& v)
+	{
+		return v.length();
+	}
+
+	template<typename T, qualifier Q>
+	inline length_t components(vec<4, T, Q> const& v)
+	{
+		return v.length();
+	}
+
+	template<typename genType>
+	inline length_t components(genType const& m)
+	{
+		return m.length() * m[0].length();
+	}
+
+	template<typename genType>
+	inline typename genType::value_type const * begin(genType const& v)
+	{
+		return value_ptr(v);
+	}
+
+	template<typename genType>
+	inline typename genType::value_type const * end(genType const& v)
+	{
+		return begin(v) + components(v);
+	}
+
+	template<typename genType>
+	inline typename genType::value_type * begin(genType& v)
+	{
+		return value_ptr(v);
+	}
+
+	template<typename genType>
+	inline typename genType::value_type * end(genType& v)
+	{
+		return begin(v) + components(v);
+	}
+
+#	if GLM_COMPILER & GLM_COMPILER_VC
+#		pragma warning(pop)
+#	endif
+
+	/// @}
+}//namespace glm