2 Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
4 This file is part of the n3dmath2 library.
6 The n3dmath2 library is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 The n3dmath2 library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with the n3dmath2 library; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #include "n3dmath2.hpp"
30 Ray::Ray(const Vector3 &origin, const Vector3 &dir) {
31 this->origin = origin;
37 void Ray::enter(scalar_t new_ior) {
44 ior = ior_stack.empty() ? 1.0 : ior_stack.top();