root/OpenSceneGraph/trunk/src/osgPlugins/lib3ds/lib3ds_float.cpp @ 1563

Revision 1563, 1.3 kB (checked in by robert, 11 years ago)

Added an #ifdef to osgGLUT/Window.cpp to handle the case of compiling against
older versions of GLUT.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
RevLine 
[8]1/*
2 * The 3D Studio File Format Library
3 * Copyright (C) 1996-2001 by J.E. Hoffmann <je-h@gmx.net>
4 * All rights reserved.
5 *
6 * This program is  free  software;  you can redistribute it and/or modify it
[151]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
[8]9 * your option) any later version.
10 *
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
[151]13 * or  FITNESS FOR A  PARTICULAR PURPOSE.  See the  GNU Lesser General Public 
[8]14 * License for more details.
15 *
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.
19 *
20 * $Id$
21 */
22#define LIB3DS_EXPORT
[1563]23#include "lib3ds_float.h"
[8]24
[151]25
[8]26/*!
27 * \defgroup float Floating Point Mathematics
28 *
29 * \author J.E. Hoffmann <je-h@gmx.net>
30 */
31
[151]32
[8]33/*!
34 * \ingroup float
35 */
36Lib3dsFloat
37lib3ds_float_cubic(Lib3dsFloat a, Lib3dsFloat p, Lib3dsFloat q, Lib3dsFloat b, Lib3dsFloat t)
38{
[151]39  Lib3dsDouble x,y,z,w;   
[8]40
[151]41  x=2*t*t*t - 3*t*t + 1;
42  y=-2*t*t*t + 3*t*t;
43  z=t*t*t - 2*t*t + t;
44  w=t*t*t - t*t;
45  return((Lib3dsFloat)(x*a + y*b + z*p + w*q));
[8]46}
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