2 * The 3D Studio File Format Library
3 * Copyright (C) 1996-2001 by J.E. Hoffmann <je-h@gmx.net>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or (at
9 * your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14 * License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 * $Id: float.c,v 1.4 2001/01/12 10:29:17 jeh Exp $
23 #include <lib3ds/float.h>
27 * \defgroup float Floating Point Mathematics
29 * \author J.E. Hoffmann <je-h@gmx.net>
37 lib3ds_float_cubic(Lib3dsFloat a, Lib3dsFloat p, Lib3dsFloat q, Lib3dsFloat b, Lib3dsFloat t)
41 x=2*t*t*t - 3*t*t + 1;
45 return((Lib3dsFloat)(x*a + y*b + z*p + w*q));