1 files changed, 37 insertions, 0 deletions
diff --git a/external/include/glm/gtx/polar_coordinates.inl b/external/include/glm/gtx/polar_coordinates.inl
new file mode 100644
index 0000000..afc9d2b
--- /dev/null
+++ b/external/include/glm/gtx/polar_coordinates.inl
@@ -0,0 +1,37 @@
+/// @ref gtx_polar_coordinates
+/// @file glm/gtx/polar_coordinates.inl
+
+namespace glm
+{
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER tvec3<T, P> polar
+	(
+		tvec3<T, P> const & euclidean
+	)
+	{
+		T const Length(length(euclidean));
+		tvec3<T, P> const tmp(euclidean / Length);
+		T const xz_dist(sqrt(tmp.x * tmp.x + tmp.z * tmp.z));
+
+		return tvec3<T, P>(
+			asin(tmp.y),	// latitude
+			atan(tmp.x, tmp.z),		// longitude
+			xz_dist);				// xz distance
+	}
+
+	template <typename T, precision P>
+	GLM_FUNC_QUALIFIER tvec3<T, P> euclidean
+	(
+		tvec2<T, P> const & polar
+	)
+	{
+		T const latitude(polar.x);
+		T const longitude(polar.y);
+
+		return tvec3<T, P>(
+			cos(latitude) * sin(longitude),
+			sin(latitude),
+			cos(latitude) * cos(longitude));
+	}
+
+}//namespace glm