43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_LOOK_AT_H
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#define IGL_LOOK_AT_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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namespace igl
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{
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// Implementation of the deprecated gluLookAt function.
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//
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// Inputs:
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// eye 3-vector of eye position
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// center 3-vector of center reference point
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// up 3-vector of up vector
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// Outputs:
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// R 4x4 rotation matrix
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//
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template <
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typename Derivedeye,
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typename Derivedcenter,
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typename Derivedup,
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typename DerivedR >
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IGL_INLINE void look_at(
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const Eigen::PlainObjectBase<Derivedeye> & eye,
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const Eigen::PlainObjectBase<Derivedcenter> & center,
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const Eigen::PlainObjectBase<Derivedup> & up,
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Eigen::PlainObjectBase<DerivedR> & R);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "look_at.cpp"
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#endif
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#endif
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