update bundled_deps

bundled_deps/libigl/igl/mat_to_quat.h

@@ -0,0 +1,32 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+#ifndef IGL_MAT_TO_QUAT_H
+#define IGL_MAT_TO_QUAT_H
+#include "igl_inline.h"
+namespace igl
+{
+  // Convert a OpenGL (rotation) matrix to a quaternion
+  //
+  // Input:
+  //   m  16-element opengl rotation matrix
+  // Output:
+  //   q  4-element  quaternion (not normalized)
+  template <typename Q_type>
+  IGL_INLINE void mat4_to_quat(const Q_type * m, Q_type * q);
+  // Input:
+  //   m  9-element opengl rotation matrix
+  template <typename Q_type>
+  IGL_INLINE void mat3_to_quat(const Q_type * m, Q_type * q);
+}
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "mat_to_quat.cpp"
+#endif
+
+#endif
+