libigl/include/igl/Hit.h

// This file is part of libigl, a simple c++ geometry processing library.
// 
// Copyright (C) 2015 Alec Jacobson <[email protected]>
//               2014 Christian Schüller <[email protected]> 
//
// 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_HIT_H
#define IGL_HIT_H

namespace igl
{
  /// Reimplementation of the embree::Hit struct from embree1.0
  /// 
  template <typename Scalar>
  struct Hit
  {
    /// primitive id
    int id; 
    /// geometry id (not used)
    int gid; 
    /// barycentric coordinates so that 
    ///   pos = V.row(F(id,0))*(1-u-v)+V.row(F(id,1))*u+V.row(F(id,2))*v;
    Scalar u,v; 
    /// parametric distance so that
    ///   pos = origin + t * dir
    Scalar t; 
  };
}
#endif