// This file is part of libigl, a simple c++ geometry processing library. // // Copyright (C) 2013 Alec Jacobson // // 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_OPENGL2_UNPROJECT_TO_ZERO_PLANE_H #define IGL_OPENGL2_UNPROJECT_TO_ZERO_PLANE_H #include "../igl_inline.h" #include namespace igl { namespace opengl2 { // Wrapper for gluUnproject that uses the current GL_MODELVIEW_MATRIX, // GL_PROJECTION_MATRIX, and GL_VIEWPORT to unproject a screen position // (winX,winY) to a 3d location at same depth as the current origin. // Inputs: // win* screen space x, y, and z coordinates respectively // Outputs: // obj* pointers to 3D objects' x, y, and z coordinates respectively // Returns return value of gluUnProject call IGL_INLINE void unproject_to_zero_plane( const double winX, const double winY, double* objX, double* objY, double* objZ); template IGL_INLINE void unproject_to_zero_plane( const Eigen::PlainObjectBase & win, Eigen::PlainObjectBase & obj); } } #ifndef IGL_STATIC_LIBRARY # include "unproject_to_zero_plane.cpp" #endif #endif