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0749e45aa3
- Renaming CopyWindingAccuToNormal() to CopyWindingAccuToRegular() in order to avoid confusing "normal" (as in "regular") with "normal" (as in the normal to the plane). - In mathlib.h/mathlib.c, breaking out all the *Accu() #define functions into actual functions in mathlib.c. I think this is much safer for ensuring that the correct types are passed in. Otherwise math might take place in the 32 bit world without any warning. - Adding VectorCopyAccuToRegular() and VectorCopyRegularToAccu() to mathlib. - Improving comments on VEC_SMALLEST_EPSILON_AROUND_ONE and VEC_ACCU_SMALLEST_EPSILON_AROUND_ONE. - Had to "adjust" some code in polylib.c due to the change in functions in mathlib (moving from #define to actual functions). In case you're curious as to the correctness of this code at this point: I was able to compile Icy Fantasy -bsp stage in the same amount of time that it took in the original q3map2 (23 seconds to be exact), and there are no more disappearing triangles. I'm almost positive the regression tests are fixed at this point, but there is no hurry in testing them because I still have to comb through quite a bit of code to ensure that things are being done correctly with respect to math accuracy. git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/branches/Rambetter-math-fix-experiments@394 8a3a26a2-13c4-0310-b231-cf6edde360e5
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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typedef struct
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{
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int numpoints;
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vec3_t p[4]; // variable sized
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} winding_t;
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#define MAX_POINTS_ON_WINDING 64
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// you can define on_epsilon in the makefile as tighter
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#ifndef ON_EPSILON
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#define ON_EPSILON 0.1
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#endif
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winding_t *AllocWinding (int points);
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vec_t WindingArea (winding_t *w);
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void WindingCenter (winding_t *w, vec3_t center);
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void ClipWindingEpsilon (winding_t *in, vec3_t normal, vec_t dist,
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vec_t epsilon, winding_t **front, winding_t **back);
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winding_t *ChopWinding (winding_t *in, vec3_t normal, vec_t dist);
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winding_t *CopyWinding (winding_t *w);
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winding_t *ReverseWinding (winding_t *w);
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winding_t *BaseWindingForPlane (vec3_t normal, vec_t dist);
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void CheckWinding (winding_t *w);
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void WindingPlane (winding_t *w, vec3_t normal, vec_t *dist);
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void RemoveColinearPoints (winding_t *w);
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int WindingOnPlaneSide (winding_t *w, vec3_t normal, vec_t dist);
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void FreeWinding (winding_t *w);
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void WindingBounds (winding_t *w, vec3_t mins, vec3_t maxs);
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void AddWindingToConvexHull( winding_t *w, winding_t **hull, vec3_t normal );
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void ChopWindingInPlace (winding_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
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// frees the original if clipped
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void pw(winding_t *w);
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///////////////////////////////////////////////////////////////////////////////////////
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// Below is double-precision stuff. This was initially needed by the base winding code
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// in q3map2 brush processing.
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///////////////////////////////////////////////////////////////////////////////////////
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typedef struct
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{
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int numpoints;
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vec3_accu_t p[4]; // variable sized
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} winding_accu_t;
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winding_accu_t *BaseWindingForPlaneAccu(vec3_t normal, vec_t dist);
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void ChopWindingInPlaceAccu(winding_accu_t **w, vec3_t normal, vec_t dist, vec_t epsilon);
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winding_t *CopyWindingAccuToRegular(winding_accu_t *w);
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void FreeWindingAccu(winding_accu_t *w);
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