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21116995d7
* 1. Remove all global include_directories.
* 2. Move 3d party dependencies from src to budled deps if possible.
* Unify and enforce one way of including headers:
e.g. #include "libslic3r/GCode.hpp" vs #include "GCode.hpp"
(always use the "libslic3r/GCode.hpp" option).
* Make all dependencies (also header only) a cmake target.
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// 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_UNPROJECT_RAY_H
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#define IGL_UNPROJECT_RAY_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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// Construct a ray (source point + direction vector) given a screen space
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// positions (e.g. mouse) and a model-view projection constellation.
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//
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// Inputs:
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// pos 2d screen-space position (x,y)
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// model 4x4 model-view matrix
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// proj 4x4 projection matrix
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// viewport 4-long viewport vector
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// Outputs:
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// s source of ray (pos unprojected with z=0)
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/// dir direction of ray (d - s) where d is pos unprojected with z=1
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//
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template <
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typename Derivedpos,
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typename Derivedmodel,
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typename Derivedproj,
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typename Derivedviewport,
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typename Deriveds,
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typename Deriveddir>
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IGL_INLINE void unproject_ray(
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const Eigen::PlainObjectBase<Derivedpos> & pos,
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const Eigen::PlainObjectBase<Derivedmodel> & model,
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const Eigen::PlainObjectBase<Derivedproj> & proj,
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const Eigen::PlainObjectBase<Derivedviewport> & viewport,
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Eigen::PlainObjectBase<Deriveds> & s,
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Eigen::PlainObjectBase<Deriveddir> & dir);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "unproject_ray.cpp"
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#endif
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#endif
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