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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2015 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_LOOK_AT_H
#define IGL_LOOK_AT_H
#include "igl_inline.h"
#include <Eigen/Dense>
namespace igl
{
/// Implementation of the deprecated gluLookAt function.
///
/// @param[in] eye 3-vector of eye position
/// @param[in] center 3-vector of center reference point
/// @param[in] up 3-vector of up vector
/// @param[out] R 4x4 rotation matrix
///
template <
typename Derivedeye,
typename Derivedcenter,
typename Derivedup,
typename DerivedR >
IGL_INLINE void look_at(
const Eigen::PlainObjectBase<Derivedeye> & eye,
const Eigen::PlainObjectBase<Derivedcenter> & center,
const Eigen::PlainObjectBase<Derivedup> & up,
Eigen::PlainObjectBase<DerivedR> & R);
}
#ifndef IGL_STATIC_LIBRARY
# include "look_at.cpp"
#endif
#endif