272 lines
7.1 KiB
C
272 lines
7.1 KiB
C
/*
|
|
* $Id$
|
|
*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2005 by the Blender Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* Contributor(s): Daniel Dunbar
|
|
* Ton Roosendaal,
|
|
* Ben Batt,
|
|
* Brecht Van Lommel,
|
|
* Campbell Barton
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*
|
|
*/
|
|
|
|
/** \file blender/modifiers/intern/MOD_collision.c
|
|
* \ingroup modifiers
|
|
*/
|
|
|
|
|
|
#include "DNA_scene_types.h"
|
|
#include "DNA_object_types.h"
|
|
#include "DNA_meshdata_types.h"
|
|
|
|
#include "MEM_guardedalloc.h"
|
|
|
|
#include "BLI_math.h"
|
|
#include "BLI_utildefines.h"
|
|
|
|
|
|
#include "BKE_collision.h"
|
|
#include "BKE_cdderivedmesh.h"
|
|
#include "BKE_global.h"
|
|
#include "BKE_modifier.h"
|
|
#include "BKE_object.h"
|
|
#include "BKE_pointcache.h"
|
|
#include "BKE_scene.h"
|
|
|
|
#include "MOD_util.h"
|
|
|
|
static void initData(ModifierData *md)
|
|
{
|
|
CollisionModifierData *collmd = (CollisionModifierData*) md;
|
|
|
|
collmd->x = NULL;
|
|
collmd->xnew = NULL;
|
|
collmd->current_x = NULL;
|
|
collmd->current_xnew = NULL;
|
|
collmd->current_v = NULL;
|
|
collmd->time_x = collmd->time_xnew = -1000;
|
|
collmd->numverts = 0;
|
|
collmd->bvhtree = NULL;
|
|
}
|
|
|
|
static void freeData(ModifierData *md)
|
|
{
|
|
CollisionModifierData *collmd = (CollisionModifierData*) md;
|
|
|
|
if (collmd)
|
|
{
|
|
if(collmd->bvhtree)
|
|
BLI_bvhtree_free(collmd->bvhtree);
|
|
if(collmd->x)
|
|
MEM_freeN(collmd->x);
|
|
if(collmd->xnew)
|
|
MEM_freeN(collmd->xnew);
|
|
if(collmd->current_x)
|
|
MEM_freeN(collmd->current_x);
|
|
if(collmd->current_xnew)
|
|
MEM_freeN(collmd->current_xnew);
|
|
if(collmd->current_v)
|
|
MEM_freeN(collmd->current_v);
|
|
if(collmd->mfaces)
|
|
MEM_freeN(collmd->mfaces);
|
|
|
|
collmd->x = NULL;
|
|
collmd->xnew = NULL;
|
|
collmd->current_x = NULL;
|
|
collmd->current_xnew = NULL;
|
|
collmd->current_v = NULL;
|
|
collmd->time_x = collmd->time_xnew = -1000;
|
|
collmd->numverts = 0;
|
|
collmd->bvhtree = NULL;
|
|
collmd->mfaces = NULL;
|
|
}
|
|
}
|
|
|
|
static int dependsOnTime(ModifierData *UNUSED(md))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static void deformVerts(ModifierData *md, Object *ob,
|
|
DerivedMesh *derivedData,
|
|
float (*vertexCos)[3],
|
|
int UNUSED(numVerts),
|
|
int UNUSED(useRenderParams),
|
|
int UNUSED(isFinalCalc))
|
|
{
|
|
CollisionModifierData *collmd = (CollisionModifierData*) md;
|
|
DerivedMesh *dm = NULL;
|
|
MVert *tempVert = NULL;
|
|
|
|
/* if possible use/create DerivedMesh */
|
|
if(derivedData) dm = CDDM_copy(derivedData);
|
|
else if(ob->type==OB_MESH) dm = CDDM_from_mesh(ob->data, ob);
|
|
|
|
if(!ob->pd)
|
|
{
|
|
printf("CollisionModifier deformVerts: Should not happen!\n");
|
|
return;
|
|
}
|
|
|
|
if(dm)
|
|
{
|
|
float current_time = 0;
|
|
unsigned int numverts = 0;
|
|
|
|
CDDM_apply_vert_coords(dm, vertexCos);
|
|
CDDM_calc_normals(dm);
|
|
|
|
current_time = BKE_curframe(md->scene);
|
|
|
|
if(G.rt > 0)
|
|
printf("current_time %f, collmd->time_xnew %f\n", current_time, collmd->time_xnew);
|
|
|
|
numverts = dm->getNumVerts ( dm );
|
|
|
|
if((current_time > collmd->time_xnew)|| (BKE_ptcache_get_continue_physics()))
|
|
{
|
|
unsigned int i;
|
|
|
|
// check if mesh has changed
|
|
if(collmd->x && (numverts != collmd->numverts))
|
|
freeData((ModifierData *)collmd);
|
|
|
|
if(collmd->time_xnew == -1000) // first time
|
|
{
|
|
collmd->x = dm->dupVertArray(dm); // frame start position
|
|
|
|
for ( i = 0; i < numverts; i++ )
|
|
{
|
|
// we save global positions
|
|
mul_m4_v3( ob->obmat, collmd->x[i].co );
|
|
}
|
|
|
|
collmd->xnew = MEM_dupallocN(collmd->x); // frame end position
|
|
collmd->current_x = MEM_dupallocN(collmd->x); // inter-frame
|
|
collmd->current_xnew = MEM_dupallocN(collmd->x); // inter-frame
|
|
collmd->current_v = MEM_dupallocN(collmd->x); // inter-frame
|
|
|
|
collmd->numverts = numverts;
|
|
|
|
collmd->mfaces = dm->dupFaceArray(dm);
|
|
collmd->numfaces = dm->getNumFaces(dm);
|
|
|
|
// create bounding box hierarchy
|
|
collmd->bvhtree = bvhtree_build_from_mvert(collmd->mfaces, collmd->numfaces, collmd->x, numverts, ob->pd->pdef_sboft);
|
|
|
|
collmd->time_x = collmd->time_xnew = current_time;
|
|
}
|
|
else if(numverts == collmd->numverts)
|
|
{
|
|
// put positions to old positions
|
|
tempVert = collmd->x;
|
|
collmd->x = collmd->xnew;
|
|
collmd->xnew = tempVert;
|
|
collmd->time_x = collmd->time_xnew;
|
|
|
|
memcpy(collmd->xnew, dm->getVertArray(dm), numverts*sizeof(MVert));
|
|
|
|
for ( i = 0; i < numverts; i++ )
|
|
{
|
|
// we save global positions
|
|
mul_m4_v3( ob->obmat, collmd->xnew[i].co );
|
|
}
|
|
|
|
memcpy(collmd->current_xnew, collmd->x, numverts*sizeof(MVert));
|
|
memcpy(collmd->current_x, collmd->x, numverts*sizeof(MVert));
|
|
|
|
/* check if GUI setting has changed for bvh */
|
|
if(collmd->bvhtree)
|
|
{
|
|
if(ob->pd->pdef_sboft != BLI_bvhtree_getepsilon(collmd->bvhtree))
|
|
{
|
|
BLI_bvhtree_free(collmd->bvhtree);
|
|
collmd->bvhtree = bvhtree_build_from_mvert(collmd->mfaces, collmd->numfaces, collmd->current_x, numverts, ob->pd->pdef_sboft);
|
|
}
|
|
|
|
}
|
|
|
|
/* happens on file load (ONLY when i decomment changes in readfile.c) */
|
|
if(!collmd->bvhtree)
|
|
{
|
|
collmd->bvhtree = bvhtree_build_from_mvert(collmd->mfaces, collmd->numfaces, collmd->current_x, numverts, ob->pd->pdef_sboft);
|
|
}
|
|
else
|
|
{
|
|
// recalc static bounding boxes
|
|
bvhtree_update_from_mvert ( collmd->bvhtree, collmd->mfaces, collmd->numfaces, collmd->current_x, collmd->current_xnew, collmd->numverts, 1 );
|
|
}
|
|
|
|
collmd->time_xnew = current_time;
|
|
}
|
|
else if(numverts != collmd->numverts)
|
|
{
|
|
freeData((ModifierData *)collmd);
|
|
}
|
|
|
|
}
|
|
else if(current_time < collmd->time_xnew)
|
|
{
|
|
freeData((ModifierData *)collmd);
|
|
}
|
|
else
|
|
{
|
|
if(numverts != collmd->numverts)
|
|
{
|
|
freeData((ModifierData *)collmd);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(dm)
|
|
dm->release(dm);
|
|
}
|
|
|
|
|
|
ModifierTypeInfo modifierType_Collision = {
|
|
/* name */ "Collision",
|
|
/* structName */ "CollisionModifierData",
|
|
/* structSize */ sizeof(CollisionModifierData),
|
|
/* type */ eModifierTypeType_OnlyDeform,
|
|
/* flags */ eModifierTypeFlag_AcceptsMesh
|
|
| eModifierTypeFlag_Single,
|
|
|
|
/* copyData */ NULL,
|
|
/* deformVerts */ deformVerts,
|
|
/* deformMatrices */ NULL,
|
|
/* deformVertsEM */ NULL,
|
|
/* deformMatricesEM */ NULL,
|
|
/* applyModifier */ NULL,
|
|
/* applyModifierEM */ NULL,
|
|
/* initData */ initData,
|
|
/* requiredDataMask */ NULL,
|
|
/* freeData */ freeData,
|
|
/* isDisabled */ NULL,
|
|
/* updateDepgraph */ NULL,
|
|
/* dependsOnTime */ dependsOnTime,
|
|
/* dependsOnNormals */ NULL,
|
|
/* foreachObjectLink */ NULL,
|
|
/* foreachIDLink */ NULL,
|
|
/* foreachTexLink */ NULL,
|
|
};
|