2 ===========================================================================
3 Copyright (C) 1997-2006 Id Software, Inc.
5 This file is part of Quake 2 Tools source code.
7 Quake 2 Tools source code is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
12 Quake 2 Tools source code is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Quake 2 Tools source code; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 ===========================================================================
26 vec3_t p[4]; // variable sized
29 #define MAX_POINTS_ON_WINDING 64
31 // you can define on_epsilon in the makefile as tighter
33 #define ON_EPSILON 0.1
36 winding_t *AllocWinding (int points);
37 vec_t WindingArea (winding_t *w);
38 void WindingCenter (winding_t *w, vec3_t center);
39 void ClipWindingEpsilon (winding_t *in, vec3_t normal, vec_t dist,
40 vec_t epsilon, winding_t **front, winding_t **back);
41 winding_t *ChopWinding (winding_t *in, vec3_t normal, vec_t dist);
42 winding_t *CopyWinding (winding_t *w);
43 winding_t *ReverseWinding (winding_t *w);
44 winding_t *BaseWindingForPlane (vec3_t normal, vec_t dist);
45 void CheckWinding (winding_t *w);
46 void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist);
47 void RemoveColinearPoints (winding_t *w);
48 int WindingOnPlaneSide (winding_t *w, vec3_t normal, vec_t dist);
49 void FreeWinding (winding_t *w);
50 void WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);
52 void ChopWindingInPlace (winding_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
53 // frees the original if clipped
55 void pw(winding_t *w);