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e93d1ba8e775a481e9a719355b12d4523cabcae1
blender-archive/source/blender/blenkernel/intern/anim.c
Campbell Barton e93d1ba8e7 Misc warnings 
- Removed/Commented some unused vars
- CValue::GetPropertyText() could return a temp reference to a variable on the stack, option wasnt used anywhere so removed.
- KX_ConstraintWrapper::GetConstraintId allows args but ignored them
- KX_ConstraintWrapper::PySetParam didnt return NULL on an error (messing up pythons exceptions).
- BLI_natstrcmp didnt return 0 when the while loop exited
2009-05-26 10:44:14 +00:00

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/** anim.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <math.h>
#include <string.h>
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_arithb.h"
#include "BLI_rand.h"
#include "DNA_listBase.h"
#include "DNA_curve_types.h"
#include "DNA_effect_types.h"
#include "DNA_group_types.h"
#include "DNA_key_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_types.h"
#include "DNA_particle_types.h"
#include "DNA_scene_types.h"
#include "DNA_view3d_types.h"
#include "DNA_vfont_types.h"
#include "BKE_anim.h"
#include "BKE_curve.h"
#include "BKE_DerivedMesh.h"
#include "BKE_displist.h"
#include "BKE_effect.h"
#include "BKE_font.h"
#include "BKE_group.h"
#include "BKE_global.h"
#include "BKE_ipo.h"
#include "BKE_key.h"
#include "BKE_lattice.h"
#include "BKE_main.h"
#include "BKE_mesh.h"
#include "BKE_object.h"
#include "BKE_particle.h"
#include "BKE_utildefines.h"
#include "BKE_bad_level_calls.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
static void object_duplilist_recursive(ID *id, Object *ob, ListBase *duplilist, float par_space_mat[][4], int level, int animated);
void free_path(Path *path)
{
if(path->data) MEM_freeN(path->data);
MEM_freeN(path);
}
void calc_curvepath(Object *ob)
{
BevList *bl;
BevPoint *bevp, *bevpn, *bevpfirst, *bevplast, *tempbevp;
Curve *cu;
Nurb *nu;
Path *path;
float *fp, *dist, *maxdist, x, y, z;
float fac, d=0, fac1, fac2;
int a, tot, cycl=0;
float *ft;
/* in a path vertices are with equal differences: path->len = number of verts */
/* NOW WITH BEVELCURVE!!! */
if(ob==NULL || ob->type != OB_CURVE) return;
cu= ob->data;
if(ob==G.obedit) nu= editNurb.first;
else nu= cu->nurb.first;
if(cu->path) free_path(cu->path);
cu->path= NULL;
bl= cu->bev.first;
if(bl==NULL || !bl->nr) return;
cu->path=path= MEM_callocN(sizeof(Path), "path");
/* if POLY: last vertice != first vertice */
cycl= (bl->poly!= -1);
if(cycl) tot= bl->nr;
else tot= bl->nr-1;
path->len= tot+1;
/* exception: vector handle paths and polygon paths should be subdivided at least a factor resolu */
if(path->len<nu->resolu*SEGMENTSU(nu)) path->len= nu->resolu*SEGMENTSU(nu);
dist= (float *)MEM_mallocN((tot+1)*4, "calcpathdist");
/* all lengths in *dist */
bevp= bevpfirst= (BevPoint *)(bl+1);
fp= dist;
*fp= 0;
for(a=0; a<tot; a++) {
fp++;
if(cycl && a==tot-1) {
x= bevpfirst->x - bevp->x;
y= bevpfirst->y - bevp->y;
z= bevpfirst->z - bevp->z;
}
else {
tempbevp = bevp+1;
x= (tempbevp)->x - bevp->x;
y= (tempbevp)->y - bevp->y;
z= (tempbevp)->z - bevp->z;
}
*fp= *(fp-1)+ (float)sqrt(x*x+y*y+z*z);
bevp++;
}
path->totdist= *fp;
/* the path verts in path->data */
/* now also with TILT value */
ft= path->data = (float *)MEM_callocN(16*path->len, "pathdata");
bevp= bevpfirst;
bevpn= bevp+1;
bevplast= bevpfirst + (bl->nr-1);
fp= dist+1;
maxdist= dist+tot;
fac= 1.0f/((float)path->len-1.0f);
fac = fac * path->totdist;
for(a=0; a<path->len; a++) {
d= ((float)a)*fac;
/* we're looking for location (distance) 'd' in the array */
while((d>= *fp) && fp<maxdist) {
fp++;
if(bevp<bevplast) bevp++;
bevpn= bevp+1;
if(bevpn>bevplast) {
if(cycl) bevpn= bevpfirst;
else bevpn= bevplast;
}
}
fac1= *(fp)- *(fp-1);
fac2= *(fp)-d;
fac1= fac2/fac1;
fac2= 1.0f-fac1;
ft[0]= fac1*bevp->x+ fac2*(bevpn)->x;
ft[1]= fac1*bevp->y+ fac2*(bevpn)->y;
ft[2]= fac1*bevp->z+ fac2*(bevpn)->z;
ft[3]= fac1*bevp->alfa+ fac2*(bevpn)->alfa;
ft+= 4;
}
MEM_freeN(dist);
}
int interval_test(int min, int max, int p1, int cycl)
{
if(cycl) {
if( p1 < min)
p1= ((p1 -min) % (max-min+1)) + max+1;
else if(p1 > max)
p1= ((p1 -min) % (max-min+1)) + min;
}
else {
if(p1 < min) p1= min;
else if(p1 > max) p1= max;
}
return p1;
}
/* warning, *vec needs FOUR items! */
/* ctime is normalized range <0-1> */
int where_on_path(Object *ob, float ctime, float *vec, float *dir) /* returns OK */
{
Curve *cu;
Nurb *nu;
BevList *bl;
Path *path;
float *fp, *p0, *p1, *p2, *p3, fac;
float data[4];
int cycl=0, s0, s1, s2, s3;
if(ob==NULL || ob->type != OB_CURVE) return 0;
cu= ob->data;
if(cu->path==NULL || cu->path->data==NULL) {
printf("no path!\n");
return 0;
}
path= cu->path;
fp= path->data;
/* test for cyclic */
bl= cu->bev.first;
if (!bl) return 0;
if (!bl->nr) return 0;
if(bl->poly> -1) cycl= 1;
ctime *= (path->len-1);
s1= (int)floor(ctime);
fac= (float)(s1+1)-ctime;
/* path->len is corected for cyclic */
s0= interval_test(0, path->len-1-cycl, s1-1, cycl);
s1= interval_test(0, path->len-1-cycl, s1, cycl);
s2= interval_test(0, path->len-1-cycl, s1+1, cycl);
s3= interval_test(0, path->len-1-cycl, s1+2, cycl);
p0= fp + 4*s0;
p1= fp + 4*s1;
p2= fp + 4*s2;
p3= fp + 4*s3;
/* note, commented out for follow constraint */
//if(cu->flag & CU_FOLLOW) {
set_afgeleide_four_ipo(1.0f-fac, data, KEY_BSPLINE);
dir[0]= data[0]*p0[0] + data[1]*p1[0] + data[2]*p2[0] + data[3]*p3[0] ;
dir[1]= data[0]*p0[1] + data[1]*p1[1] + data[2]*p2[1] + data[3]*p3[1] ;
dir[2]= data[0]*p0[2] + data[1]*p1[2] + data[2]*p2[2] + data[3]*p3[2] ;
/* make compatible with vectoquat */
dir[0]= -dir[0];
dir[1]= -dir[1];
dir[2]= -dir[2];
//}
nu= cu->nurb.first;
/* make sure that first and last frame are included in the vectors here */
if((nu->type & 7)==CU_POLY) set_four_ipo(1.0f-fac, data, KEY_LINEAR);
else if((nu->type & 7)==CU_BEZIER) set_four_ipo(1.0f-fac, data, KEY_LINEAR);
else if(s0==s1 || p2==p3) set_four_ipo(1.0f-fac, data, KEY_CARDINAL);
else set_four_ipo(1.0f-fac, data, KEY_BSPLINE);
vec[0]= data[0]*p0[0] + data[1]*p1[0] + data[2]*p2[0] + data[3]*p3[0] ;
vec[1]= data[0]*p0[1] + data[1]*p1[1] + data[2]*p2[1] + data[3]*p3[1] ;
vec[2]= data[0]*p0[2] + data[1]*p1[2] + data[2]*p2[2] + data[3]*p3[2] ;
vec[3]= data[0]*p0[3] + data[1]*p1[3] + data[2]*p2[3] + data[3]*p3[3] ;
return 1;
}
/* ****************** DUPLICATOR ************** */
static DupliObject *new_dupli_object(ListBase *lb, Object *ob, float mat[][4], int lay, int index, int type, int animated)
{
DupliObject *dob= MEM_callocN(sizeof(DupliObject), "dupliobject");
BLI_addtail(lb, dob);
dob->ob= ob;
Mat4CpyMat4(dob->mat, mat);
Mat4CpyMat4(dob->omat, ob->obmat);
dob->origlay= ob->lay;
dob->index= index;
dob->type= type;
dob->animated= (type == OB_DUPLIGROUP) && animated;
ob->lay= lay;
return dob;
}
static void group_duplilist(ListBase *lb, Object *ob, int level, int animated)
{
DupliObject *dob;
Group *group;
GroupObject *go;
float mat[4][4], tmat[4][4];
if(ob->dup_group==NULL) return;
group= ob->dup_group;
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
/* handles animated groups, and */
/* we need to check update for objects that are not in scene... */
group_handle_recalc_and_update(ob, group);
animated= animated || group_is_animated(ob, group);
for(go= group->gobject.first; go; go= go->next) {
/* note, if you check on layer here, render goes wrong... it still deforms verts and uses parent imat */
if(go->ob!=ob) {
/* Group Dupli Offset, should apply after everything else */
if (group->dupli_ofs[0] || group->dupli_ofs[1] || group->dupli_ofs[2]) {
Mat4CpyMat4(tmat, go->ob->obmat);
VecSubf(tmat[3], tmat[3], group->dupli_ofs);
Mat4MulMat4(mat, tmat, ob->obmat);
} else {
Mat4MulMat4(mat, go->ob->obmat, ob->obmat);
}
dob= new_dupli_object(lb, go->ob, mat, ob->lay, 0, OB_DUPLIGROUP, animated);
dob->no_draw= (dob->origlay & group->layer)==0;
if(go->ob->transflag & OB_DUPLI) {
Mat4CpyMat4(dob->ob->obmat, dob->mat);
object_duplilist_recursive((ID *)group, go->ob, lb, ob->obmat, level+1, animated);
Mat4CpyMat4(dob->ob->obmat, dob->omat);
}
}
}
}
static void frames_duplilist(ListBase *lb, Object *ob, int level, int animated)
{
extern int enable_cu_speed; /* object.c */
Object copyob;
DupliObject *dob;
int cfrao, ok;
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
cfrao= G.scene->r.cfra;
if(ob->parent==NULL && ob->track==NULL && ob->ipo==NULL && ob->constraints.first==NULL) return;
if(ob->transflag & OB_DUPLINOSPEED) enable_cu_speed= 0;
copyob= *ob; /* store transform info */
for(G.scene->r.cfra= ob->dupsta; G.scene->r.cfra<=ob->dupend; G.scene->r.cfra++) {
ok= 1;
if(ob->dupoff) {
ok= G.scene->r.cfra - ob->dupsta;
ok= ok % (ob->dupon+ob->dupoff);
if(ok < ob->dupon) ok= 1;
else ok= 0;
}
if(ok) {
do_ob_ipo(ob);
where_is_object_time(ob, (float)G.scene->r.cfra);
dob= new_dupli_object(lb, ob, ob->obmat, ob->lay, G.scene->r.cfra, OB_DUPLIFRAMES, animated);
Mat4CpyMat4(dob->omat, copyob.obmat);
}
}
*ob= copyob; /* restore transform info */
G.scene->r.cfra= cfrao;
enable_cu_speed= 1;
}
struct vertexDupliData {
ID *id; /* scene or group, for recursive loops */
int level;
int animated;
ListBase *lb;
float pmat[4][4];
float obmat[4][4]; /* Only used for dupliverts inside dupligroups, where the ob->obmat is modified */
Object *ob, *par;
float (*orco)[3];
};
static void vertex_dupli__mapFunc(void *userData, int index, float *co, float *no_f, short *no_s)
{
DupliObject *dob;
struct vertexDupliData *vdd= userData;
float vec[3], q2[4], mat[3][3], tmat[4][4], obmat[4][4];
VECCOPY(vec, co);
Mat4MulVecfl(vdd->pmat, vec);
VecSubf(vec, vec, vdd->pmat[3]);
VecAddf(vec, vec, vdd->obmat[3]);
Mat4CpyMat4(obmat, vdd->obmat);
VECCOPY(obmat[3], vec);
if(vdd->par->transflag & OB_DUPLIROT) {
if(no_f) {
vec[0]= -no_f[0]; vec[1]= -no_f[1]; vec[2]= -no_f[2];
}
else if(no_s) {
vec[0]= -no_s[0]; vec[1]= -no_s[1]; vec[2]= -no_s[2];
}
vectoquat(vec, vdd->ob->trackflag, vdd->ob->upflag, q2);
QuatToMat3(q2, mat);
Mat4CpyMat4(tmat, obmat);
Mat4MulMat43(obmat, tmat, mat);
}
dob= new_dupli_object(vdd->lb, vdd->ob, obmat, vdd->par->lay, index, OB_DUPLIVERTS, vdd->animated);
if(vdd->orco)
VECCOPY(dob->orco, vdd->orco[index]);
if(vdd->ob->transflag & OB_DUPLI) {
float tmpmat[4][4];
Mat4CpyMat4(tmpmat, vdd->ob->obmat);
Mat4CpyMat4(vdd->ob->obmat, obmat); /* pretend we are really this mat */
object_duplilist_recursive((ID *)vdd->id, vdd->ob, vdd->lb, obmat, vdd->level+1, vdd->animated);
Mat4CpyMat4(vdd->ob->obmat, tmpmat);
}
}
static void vertex_duplilist(ListBase *lb, ID *id, Object *par, float par_space_mat[][4], int level, int animated)
{
Object *ob, *ob_iter;
Mesh *me;
Base *base = NULL;
float vec[3], no[3], pmat[4][4];
int lay, totvert, a, oblay;
DerivedMesh *dm;
struct vertexDupliData vdd;
Scene *sce = NULL;
Group *group = NULL;
GroupObject * go = NULL;
Mat4CpyMat4(pmat, par->obmat);
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
if(par==G.obedit)
dm= editmesh_get_derived_cage(CD_MASK_BAREMESH);
else
dm= mesh_get_derived_deform(par, CD_MASK_BAREMESH);
if(G.rendering) {
me= par->data;
vdd.orco= (float(*)[3])get_mesh_orco_verts(par);
transform_mesh_orco_verts(me, vdd.orco, me->totvert, 0);
}
else
vdd.orco= NULL;
totvert = dm->getNumVerts(dm);
/* having to loop on scene OR group objects is NOT FUN */
if (GS(id->name) == ID_SCE) {
sce = (Scene *)id;
lay= sce->lay;
base= sce->base.first;
} else {
group = (Group *)id;
lay= group->layer;
go = group->gobject.first;
}
/* Start looping on Scene OR Group objects */
while (base || go) {
if (sce) {
ob_iter= base->object;
oblay = base->lay;
} else {
ob_iter= go->ob;
oblay = ob_iter->lay;
}
if (lay & oblay && G.obedit!=ob_iter) {
ob=ob_iter->parent;
while(ob) {
if(ob==par) {
ob = ob_iter;
/* End Scene/Group object loop, below is generic */
/* par_space_mat - only used for groups so we can modify the space dupli's are in
when par_space_mat is NULL ob->obmat can be used instead of ob__obmat
*/
if(par_space_mat)
Mat4MulMat4(vdd.obmat, ob->obmat, par_space_mat);
else
Mat4CpyMat4(vdd.obmat, ob->obmat);
vdd.id= id;
vdd.level= level;
vdd.animated= animated;
vdd.lb= lb;
vdd.ob= ob;
vdd.par= par;
Mat4CpyMat4(vdd.pmat, pmat);
/* mballs have a different dupli handling */
if(ob->type!=OB_MBALL) ob->flag |= OB_DONE; /* doesnt render */
if(par==G.obedit) {
dm->foreachMappedVert(dm, vertex_dupli__mapFunc, (void*) &vdd);
}
else {
for(a=0; a<totvert; a++) {
dm->getVertCo(dm, a, vec);
dm->getVertNo(dm, a, no);
vertex_dupli__mapFunc(&vdd, a, vec, no, NULL);
}
}
break;
}
ob= ob->parent;
}
}
if (sce) base= base->next; /* scene loop */
else go= go->next; /* group loop */
}
if(vdd.orco)
MEM_freeN(vdd.orco);
dm->release(dm);
}
static void face_duplilist(ListBase *lb, ID *id, Object *par, float par_space_mat[][4], int level, int animated)
{
Object *ob, *ob_iter;
Base *base = NULL;
DupliObject *dob;
DerivedMesh *dm;
Mesh *me;
MTFace *mtface;
MFace *mface;
MVert *mvert;
float pmat[4][4], imat[3][3], (*orco)[3] = NULL, w;
int lay, oblay, totface, a;
Scene *sce = NULL;
Group *group = NULL;
GroupObject *go = NULL;
float ob__obmat[4][4]; /* needed for groups where the object matrix needs to be modified */
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
Mat4CpyMat4(pmat, par->obmat);
if(par==G.obedit) {
int totvert;
dm= editmesh_get_derived_cage(CD_MASK_BAREMESH);
totface= dm->getNumFaces(dm);
mface= MEM_mallocN(sizeof(MFace)*totface, "mface temp");
dm->copyFaceArray(dm, mface);
totvert= dm->getNumVerts(dm);
mvert= MEM_mallocN(sizeof(MVert)*totvert, "mvert temp");
dm->copyVertArray(dm, mvert);
}
else {
dm = mesh_get_derived_deform(par, CD_MASK_BAREMESH);
totface= dm->getNumFaces(dm);
mface= dm->getFaceArray(dm);
mvert= dm->getVertArray(dm);
}
if(G.rendering) {
me= (Mesh*)par->data;
orco= (float(*)[3])get_mesh_orco_verts(par);
transform_mesh_orco_verts(me, orco, me->totvert, 0);
mtface= me->mtface;
}
else {
orco= NULL;
mtface= NULL;
}
/* having to loop on scene OR group objects is NOT FUN */
if (GS(id->name) == ID_SCE) {
sce = (Scene *)id;
lay= sce->lay;
base= sce->base.first;
} else {
group = (Group *)id;
lay= group->layer;
go = group->gobject.first;
}
/* Start looping on Scene OR Group objects */
while (base || go) {
if (sce) {
ob_iter= base->object;
oblay = base->lay;
} else {
ob_iter= go->ob;
oblay = ob_iter->lay;
}
if (lay & oblay && G.obedit!=ob_iter) {
ob=ob_iter->parent;
while(ob) {
if(ob==par) {
ob = ob_iter;
/* End Scene/Group object loop, below is generic */
/* par_space_mat - only used for groups so we can modify the space dupli's are in
when par_space_mat is NULL ob->obmat can be used instead of ob__obmat
*/
if(par_space_mat)
Mat4MulMat4(ob__obmat, ob->obmat, par_space_mat);
else
Mat4CpyMat4(ob__obmat, ob->obmat);
Mat3CpyMat4(imat, ob->parentinv);
/* mballs have a different dupli handling */
if(ob->type!=OB_MBALL) ob->flag |= OB_DONE; /* doesnt render */
for(a=0; a<totface; a++) {
int mv1 = mface[a].v1;
int mv2 = mface[a].v2;
int mv3 = mface[a].v3;
int mv4 = mface[a].v4;
float *v1= mvert[mv1].co;
float *v2= mvert[mv2].co;
float *v3= mvert[mv3].co;
float *v4= (mv4)? mvert[mv4].co: NULL;
float cent[3], quat[4], mat[3][3], mat3[3][3], tmat[4][4], obmat[4][4];
/* translation */
if(v4)
CalcCent4f(cent, v1, v2, v3, v4);
else
CalcCent3f(cent, v1, v2, v3);
Mat4MulVecfl(pmat, cent);
VecSubf(cent, cent, pmat[3]);
VecAddf(cent, cent, ob__obmat[3]);
Mat4CpyMat4(obmat, ob__obmat);
VECCOPY(obmat[3], cent);
/* rotation */
triatoquat(v1, v2, v3, quat);
QuatToMat3(quat, mat);
/* scale */
if(par->transflag & OB_DUPLIFACES_SCALE) {
float size= v4?AreaQ3Dfl(v1, v2, v3, v4):AreaT3Dfl(v1, v2, v3);
size= sqrt(size) * par->dupfacesca;
Mat3MulFloat(mat[0], size);
}
Mat3CpyMat3(mat3, mat);
Mat3MulMat3(mat, imat, mat3);
Mat4CpyMat4(tmat, obmat);
Mat4MulMat43(obmat, tmat, mat);
dob= new_dupli_object(lb, ob, obmat, lay, a, OB_DUPLIFACES, animated);
if(G.rendering) {
w= (mv4)? 0.25f: 1.0f/3.0f;
if(orco) {
VECADDFAC(dob->orco, dob->orco, orco[mv1], w);
VECADDFAC(dob->orco, dob->orco, orco[mv2], w);
VECADDFAC(dob->orco, dob->orco, orco[mv3], w);
if(mv4)
VECADDFAC(dob->orco, dob->orco, orco[mv4], w);
}
if(mtface) {
dob->uv[0] += w*mtface[a].uv[0][0];
dob->uv[1] += w*mtface[a].uv[0][1];
dob->uv[0] += w*mtface[a].uv[1][0];
dob->uv[1] += w*mtface[a].uv[1][1];
dob->uv[0] += w*mtface[a].uv[2][0];
dob->uv[1] += w*mtface[a].uv[2][1];
if(mv4) {
dob->uv[0] += w*mtface[a].uv[3][0];
dob->uv[1] += w*mtface[a].uv[3][1];
}
}
}
if(ob->transflag & OB_DUPLI) {
float tmpmat[4][4];
Mat4CpyMat4(tmpmat, ob->obmat);
Mat4CpyMat4(ob->obmat, obmat); /* pretend we are really this mat */
object_duplilist_recursive((ID *)id, ob, lb, ob->obmat, level+1, animated);
Mat4CpyMat4(ob->obmat, tmpmat);
}
}
break;
}
ob= ob->parent;
}
}
if (sce) base= base->next; /* scene loop */
else go= go->next; /* group loop */
}
if(par==G.obedit) {
MEM_freeN(mface);
MEM_freeN(mvert);
}
if(orco)
MEM_freeN(orco);
dm->release(dm);
}
static void new_particle_duplilist(ListBase *lb, ID *id, Object *par, float par_space_mat[][4], ParticleSystem *psys, int level, int animated)
{
GroupObject *go;
Object *ob=0, **oblist=0, obcopy, *obcopylist=0;
DupliObject *dob;
ParticleSettings *part;
ParticleData *pa;
ChildParticle *cpa=0;
ParticleKey state;
ParticleCacheKey *cache;
ParticleSystemModifierData *psmd;
float ctime, pa_time, scale = 1.0f;
float tmat[4][4], mat[4][4], pamat[4][4], size=0.0;
float (*obmat)[4], (*oldobmat)[4];
int lay, a, b, counter, hair = 0;
int totpart, totchild, totgroup=0, pa_num;
if(psys==0) return;
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
part=psys->part;
psmd= psys_get_modifier(par, psys);
if(part==0)
return;
if(!psys_check_enabled(par, psys))
return;
ctime = bsystem_time(par, (float)G.scene->r.cfra, 0.0);
totpart = psys->totpart;
totchild = psys->totchild;
BLI_srandom(31415926 + psys->seed);
lay= G.scene->lay;
if((part->draw_as == PART_DRAW_OB && part->dup_ob) ||
(part->draw_as == PART_DRAW_GR && part->dup_group && part->dup_group->gobject.first)) {
/* if we have a hair particle system, use the path cache */
if(part->type == PART_HAIR) {
if(psys->flag & PSYS_HAIR_DONE)
hair= (totchild == 0 || psys->childcache) && psys->pathcache;
if(!hair)
return;
/* we use cache, update totchild according to cached data */
totchild = psys->totchildcache;
totpart = psys->totcached;
}
psys->lattice = psys_get_lattice(par, psys);
/* gather list of objects or single object */
if(part->draw_as==PART_DRAW_GR) {
group_handle_recalc_and_update(par, part->dup_group);
for(go=part->dup_group->gobject.first; go; go=go->next)
totgroup++;
/* we also copy the actual objects to restore afterwards, since
* where_is_object_time will change the object which breaks transform */
oblist = MEM_callocN(totgroup*sizeof(Object *), "dupgroup object list");
obcopylist = MEM_callocN(totgroup*sizeof(Object), "dupgroup copy list");
go = part->dup_group->gobject.first;
for(a=0; a<totgroup; a++, go=go->next) {
oblist[a] = go->ob;
obcopylist[a] = *go->ob;
}
}
else {
ob = part->dup_ob;
obcopy = *ob;
}
if(totchild==0 || part->draw & PART_DRAW_PARENT)
a = 0;
else
a = totpart;
for(pa=psys->particles,counter=0; a<totpart+totchild; a++,pa++,counter++) {
if(a<totpart) {
/* handle parent particle */
if(pa->flag & (PARS_UNEXIST+PARS_NO_DISP))
continue;
pa_num = pa->num;
pa_time = pa->time;
size = pa->size;
}
else {
/* handle child particle */
cpa = &psys->child[a - totpart];
pa_num = a;
pa_time = psys->particles[cpa->parent].time;
size = psys_get_child_size(psys, cpa, ctime, 0);
}
if(part->draw_as==PART_DRAW_GR) {
/* for groups, pick the object based on settings */
if(part->draw&PART_DRAW_RAND_GR)
b= BLI_rand() % totgroup;
else if(part->from==PART_FROM_PARTICLE)
b= pa_num % totgroup;
else
b= a % totgroup;
ob = oblist[b];
obmat = oblist[b]->obmat;
oldobmat = obcopylist[b].obmat;
}
else {
obmat= ob->obmat;
oldobmat= obcopy.obmat;
}
if(hair) {
/* hair we handle separate and compute transform based on hair keys */
if(a < totpart) {
cache = psys->pathcache[a];
psys_get_dupli_path_transform(par, psys, psmd, pa, 0, cache, pamat, &scale);
}
else {
cache = psys->childcache[a-totpart];
psys_get_dupli_path_transform(par, psys, psmd, 0, cpa, cache, pamat, &scale);
}
VECCOPY(pamat[3], cache->co);
pamat[3][3]= 1.0f;
}
else {
/* first key */
state.time = ctime;
if(psys_get_particle_state(par, psys, a, &state, 0) == 0)
continue;
QuatToMat4(state.rot, pamat);
VECCOPY(pamat[3], state.co);
pamat[3][3]= 1.0f;
}
if(part->draw_as==PART_DRAW_GR && psys->part->draw & PART_DRAW_WHOLE_GR) {
for(go= part->dup_group->gobject.first, b=0; go; go= go->next, b++) {
Mat4MulMat4(tmat, oblist[b]->obmat, pamat);
Mat4MulFloat3((float *)tmat, size*scale);
if(par_space_mat)
Mat4MulMat4(mat, tmat, par_space_mat);
else
Mat4CpyMat4(mat, tmat);
dob= new_dupli_object(lb, go->ob, mat, par->lay, counter, OB_DUPLIPARTS, animated);
Mat4CpyMat4(dob->omat, obcopylist[b].obmat);
if(G.rendering)
psys_get_dupli_texture(par, part, psmd, pa, cpa, dob->uv, dob->orco);
}
}
else {
/* to give ipos in object correct offset */
where_is_object_time(ob, ctime-pa_time);
Mat4CpyMat4(mat, pamat);
Mat4MulMat4(tmat, obmat, mat);
Mat4MulFloat3((float *)tmat, size*scale);
if(par_space_mat)
Mat4MulMat4(mat, tmat, par_space_mat);
else
Mat4CpyMat4(mat, tmat);
dob= new_dupli_object(lb, ob, mat, ob->lay, counter, OB_DUPLIPARTS, animated);
Mat4CpyMat4(dob->omat, oldobmat);
if(G.rendering)
psys_get_dupli_texture(par, part, psmd, pa, cpa, dob->uv, dob->orco);
}
}
/* restore objects since they were changed in where_is_object_time */
if(part->draw_as==PART_DRAW_GR) {
for(a=0; a<totgroup; a++)
*(oblist[a])= obcopylist[a];
}
else
*ob= obcopy;
}
/* clean up */
if(oblist)
MEM_freeN(oblist);
if(obcopylist)
MEM_freeN(obcopylist);
if(psys->lattice) {
end_latt_deform();
psys->lattice = 0;
}
}
static Object *find_family_object(Object **obar, char *family, char ch)
{
Object *ob;
int flen;
if( obar[ch] ) return obar[ch];
flen= strlen(family);
ob= G.main->object.first;
while(ob) {
if( ob->id.name[flen+2]==ch ) {
if( strncmp(ob->id.name+2, family, flen)==0 ) break;
}
ob= ob->id.next;
}
obar[ch]= ob;
return ob;
}
static void font_duplilist(ListBase *lb, Object *par, int level, int animated)
{
Object *ob, *obar[256];
Curve *cu;
struct chartrans *ct, *chartransdata;
float vec[3], obmat[4][4], pmat[4][4], fsize, xof, yof;
int slen, a;
/* simple preventing of too deep nested groups */
if(level>MAX_DUPLI_RECUR) return;
Mat4CpyMat4(pmat, par->obmat);
/* in par the family name is stored, use this to find the other objects */
chartransdata= text_to_curve(par, FO_DUPLI);
if(chartransdata==0) return;
memset(obar, 0, 256*sizeof(void *));
cu= par->data;
slen= strlen(cu->str);
fsize= cu->fsize;
xof= cu->xof;
yof= cu->yof;
ct= chartransdata;
for(a=0; a<slen; a++, ct++) {
ob= find_family_object(obar, cu->family, cu->str[a]);
if(ob) {
vec[0]= fsize*(ct->xof - xof);
vec[1]= fsize*(ct->yof - yof);
vec[2]= 0.0;
Mat4MulVecfl(pmat, vec);
Mat4CpyMat4(obmat, par->obmat);
VECCOPY(obmat[3], vec);
new_dupli_object(lb, ob, obmat, par->lay, a, OB_DUPLIVERTS, animated);
}
}
MEM_freeN(chartransdata);
}
/* ***************************** */
static void object_duplilist_recursive(ID *id, Object *ob, ListBase *duplilist, float par_space_mat[][4], int level, int animated)
{
if((ob->transflag & OB_DUPLI)==0)
return;
/* Should the dupli's be generated for this object? - Respect restrict flags */
if (G.rendering) {
if (ob->restrictflag & OB_RESTRICT_RENDER) {
return;
}
} else {
if (ob->restrictflag & OB_RESTRICT_VIEW) {
return;
}
}
if(ob->transflag & OB_DUPLIPARTS) {
ParticleSystem *psys = ob->particlesystem.first;
for(; psys; psys=psys->next)
new_particle_duplilist(duplilist, id, ob, par_space_mat, psys, level+1, animated);
}
else if(ob->transflag & OB_DUPLIVERTS) {
if(ob->type==OB_MESH) {
vertex_duplilist(duplilist, id, ob, par_space_mat, level+1, animated);
}
else if(ob->type==OB_FONT) {
if (GS(id->name)==ID_SCE) { /* TODO - support dupligroups */
font_duplilist(duplilist, ob, level+1, animated);
}
}
}
else if(ob->transflag & OB_DUPLIFACES) {
if(ob->type==OB_MESH)
face_duplilist(duplilist, id, ob, par_space_mat, level+1, animated);
}
else if(ob->transflag & OB_DUPLIFRAMES) {
if (GS(id->name)==ID_SCE) { /* TODO - support dupligroups */
frames_duplilist(duplilist, ob, level+1, animated);
}
} else if(ob->transflag & OB_DUPLIGROUP) {
DupliObject *dob;
group_duplilist(duplilist, ob, level+1, animated); /* now recursive */
if (level==0) {
for(dob= duplilist->first; dob; dob= dob->next)
if(dob->type == OB_DUPLIGROUP)
Mat4CpyMat4(dob->ob->obmat, dob->mat);
}
}
}
/* Returns a list of DupliObject
* note; group dupli's already set transform matrix. see note in group_duplilist() */
ListBase *object_duplilist(Scene *sce, Object *ob)
{
ListBase *duplilist= MEM_mallocN(sizeof(ListBase), "duplilist");
duplilist->first= duplilist->last= NULL;
object_duplilist_recursive((ID *)sce, ob, duplilist, NULL, 0, 0);
return duplilist;
}
void free_object_duplilist(ListBase *lb)
{
DupliObject *dob;
for(dob= lb->first; dob; dob= dob->next) {
dob->ob->lay= dob->origlay;
Mat4CpyMat4(dob->ob->obmat, dob->omat);
}
BLI_freelistN(lb);
MEM_freeN(lb);
}
int count_duplilist(Object *ob)
{
if(ob->transflag & OB_DUPLI) {
if(ob->transflag & OB_DUPLIVERTS) {
if(ob->type==OB_MESH) {
if(ob->transflag & OB_DUPLIVERTS) {
ParticleSystem *psys = ob->particlesystem.first;
int pdup=0;
for(; psys; psys=psys->next)
pdup += psys->totpart;
if(pdup==0){
Mesh *me= ob->data;
return me->totvert;
}
else
return pdup;
}
}
}
else if(ob->transflag & OB_DUPLIFRAMES) {
int tot= ob->dupend - ob->dupsta;
tot/= (ob->dupon+ob->dupoff);
return tot*ob->dupon;
}
}
return 1;
}
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