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diff --git a/src/include/glm/gtx/matrix_transform_2d.hpp b/src/include/glm/gtx/matrix_transform_2d.hpp
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+/// @ref gtx_matrix_transform_2d
+/// @file glm/gtx/matrix_transform_2d.hpp
+/// @author Miguel Ángel Pérez Martínez
+///
+/// @see core (dependence)
+///
+/// @defgroup gtx_matrix_transform_2d GLM_GTX_matrix_transform_2d
+/// @ingroup gtx
+///
+/// Include <glm/gtx/matrix_transform_2d.hpp> to use the features of this extension.
+///
+/// Defines functions that generate common 2d transformation matrices.
+
+#pragma once
+
+// Dependency:
+#include "../mat3x3.hpp"
+#include "../vec2.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	ifndef GLM_ENABLE_EXPERIMENTAL
+#		pragma message("GLM: GLM_GTX_matrix_transform_2d 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.")
+#	else
+#		pragma message("GLM: GLM_GTX_matrix_transform_2d extension included")
+#	endif
+#endif
+
+namespace glm
+{
+	/// @addtogroup gtx_matrix_transform_2d
+	/// @{
+
+	/// Builds a translation 3 * 3 matrix created from a vector of 2 components.
+	///
+	/// @param m Input matrix multiplied by this translation matrix.
+	/// @param v Coordinates of a translation vector.
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> translate(
+		mat<3, 3, T, Q> const& m,
+		vec<2, T, Q> const& v);
+
+	/// Builds a rotation 3 * 3 matrix created from an angle.
+	///
+	/// @param m Input matrix multiplied by this translation matrix.
+	/// @param angle Rotation angle expressed in radians.
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> rotate(
+		mat<3, 3, T, Q> const& m,
+		T angle);
+
+	/// Builds a scale 3 * 3 matrix created from a vector of 2 components.
+	///
+	/// @param m Input matrix multiplied by this translation matrix.
+	/// @param v Coordinates of a scale vector.
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> scale(
+		mat<3, 3, T, Q> const& m,
+		vec<2, T, Q> const& v);
+
+	/// Builds an horizontal (parallel to the x axis) shear 3 * 3 matrix.
+	///
+	/// @param m Input matrix multiplied by this translation matrix.
+	/// @param y Shear factor.
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearX(
+		mat<3, 3, T, Q> const& m,
+		T y);
+
+	/// Builds a vertical (parallel to the y axis) shear 3 * 3 matrix.
+	///
+	/// @param m Input matrix multiplied by this translation matrix.
+	/// @param x Shear factor.
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearY(
+		mat<3, 3, T, Q> const& m,
+		T x);
+
+	/// @}
+}//namespace glm
+
+#include "matrix_transform_2d.inl"