rotating skyboxgit add -A

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diff --git a/glm-master/glm/gtx/matrix_transform_2d.inl b/glm-master/glm/gtx/matrix_transform_2d.inl
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+++ b/glm-master/glm/gtx/matrix_transform_2d.inl
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+/// @ref gtx_matrix_transform_2d
+/// @author Miguel Ángel Pérez Martínez
+
+#include "../trigonometric.hpp"
+
+namespace glm
+{
+
+	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)
+	{
+		mat<3, 3, T, Q> Result(m);
+		Result[2] = m[0] * v[0] + m[1] * v[1] + m[2];
+		return Result;
+	}
+
+
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> rotate(
+		mat<3, 3, T, Q> const& m,
+		T angle)
+	{
+		T const a = angle;
+		T const c = cos(a);
+		T const s = sin(a);
+
+		mat<3, 3, T, Q> Result;
+		Result[0] = m[0] * c + m[1] * s;
+		Result[1] = m[0] * -s + m[1] * c;
+		Result[2] = m[2];
+		return Result;
+	}
+
+	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)
+	{
+		mat<3, 3, T, Q> Result;
+		Result[0] = m[0] * v[0];
+		Result[1] = m[1] * v[1];
+		Result[2] = m[2];
+		return Result;
+	}
+
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearX(
+		mat<3, 3, T, Q> const& m,
+		T y)
+	{
+		mat<3, 3, T, Q> Result(1);
+		Result[0][1] = y;
+		return m * Result;
+	}
+
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER mat<3, 3, T, Q> shearY(
+		mat<3, 3, T, Q> const& m,
+		T x)
+	{
+		mat<3, 3, T, Q> Result(1);
+		Result[1][0] = x;
+		return m * Result;
+	}
+
+}//namespace glm