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Fix #34625: duplivert/face rendering with modifier could crash accessing UV and

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generated coordinates on the original mesh, after the change that made duplis
take modifiers into account.
This commit is contained in:
Brecht Van Lommel 2013-04-03 20:10:08 +00:00
parent 4c8e70d049
commit 47fffc86bc
3 changed files with 25 additions and 21 deletions
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1
source/blender/blenkernel/BKE_DerivedMesh.h
View File

@ -247,6 +247,7 @@ struct DerivedMesh {
void *(*getVertDataArray)(DerivedMesh *dm, int type);
void *(*getEdgeDataArray)(DerivedMesh *dm, int type);
void *(*getTessFaceDataArray)(DerivedMesh *dm, int type);
void *(*getLoopDataArray)(DerivedMesh *dm, int type);
void *(*getPolyDataArray)(DerivedMesh *dm, int type);
/** Retrieves the base CustomData structures for

1
source/blender/blenkernel/intern/DerivedMesh.c
View File

@ -270,6 +270,7 @@ void DM_init_funcs(DerivedMesh *dm)
dm->getEdgeDataArray = DM_get_edge_data_layer;
dm->getTessFaceDataArray = DM_get_tessface_data_layer;
dm->getPolyDataArray = DM_get_poly_data_layer;
dm->getLoopDataArray = DM_get_loop_data_layer;
bvhcache_init(&dm->bvhCache);
}

44
source/blender/blenkernel/intern/anim.c
View File

@ -953,6 +953,7 @@ static void vertex_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, fl
float vec[3], no[3], pmat[4][4];
int totvert, a, oblay;
unsigned int lay;
CustomDataMask dm_mask;
copy_m4_m4(pmat, par->obmat);
@ -961,16 +962,18 @@ static void vertex_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, fl
em = BMEdit_FromObject(par);
if (em) {
dm = editbmesh_get_derived_cage(scene, par, em, CD_MASK_BAREMESH);
}
else
dm = mesh_get_derived_final(scene, par, CD_MASK_BAREMESH);
/* get derived mesh */
dm_mask = CD_MASK_BAREMESH;
if (flag & DUPLILIST_FOR_RENDER)
dm_mask |= CD_MASK_ORCO;
if (flag & DUPLILIST_FOR_RENDER) {
vdd.orco = (float(*)[3])BKE_mesh_orco_verts_get(par);
BKE_mesh_orco_verts_transform(me, vdd.orco, me->totvert, 0);
}
if (em)
dm = editbmesh_get_derived_cage(scene, par, em, dm_mask);
else
dm = mesh_get_derived_final(scene, par, dm_mask);
if (flag & DUPLILIST_FOR_RENDER)
vdd.orco = dm->getVertDataArray(dm, CD_ORCO);
else
vdd.orco = NULL;
@ -1057,8 +1060,6 @@ static void vertex_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, fl
else go = go->next; /* group loop */
}
if (vdd.orco)
MEM_freeN(vdd.orco);
dm->release(dm);
}
@ -1069,7 +1070,6 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
Base *base = NULL;
DupliObject *dob;
DerivedMesh *dm;
Mesh *me = par->data;
MLoopUV *mloopuv;
MPoly *mpoly, *mp;
MLoop *mloop;
@ -1081,6 +1081,7 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
GroupObject *go = NULL;
BMEditMesh *em;
float ob__obmat[4][4]; /* needed for groups where the object matrix needs to be modified */
CustomDataMask dm_mask;
/* simple preventing of too deep nested groups */
if (level > MAX_DUPLI_RECUR) return;
@ -1088,11 +1089,16 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
copy_m4_m4(pmat, par->obmat);
em = BMEdit_FromObject(par);
/* get derived mesh */
dm_mask = CD_MASK_BAREMESH;
if (flag & DUPLILIST_FOR_RENDER)
dm_mask |= CD_MASK_ORCO|CD_MASK_MLOOPUV;
if (em) {
dm = editbmesh_get_derived_cage(scene, par, em, CD_MASK_BAREMESH);
dm = editbmesh_get_derived_cage(scene, par, em, dm_mask);
}
else {
dm = mesh_get_derived_final(scene, par, CD_MASK_BAREMESH);
dm = mesh_get_derived_final(scene, par, dm_mask);
}
totface = dm->getNumPolys(dm);
@ -1101,9 +1107,8 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
mvert = dm->getVertArray(dm);
if (flag & DUPLILIST_FOR_RENDER) {
orco = (float(*)[3])BKE_mesh_orco_verts_get(par);
BKE_mesh_orco_verts_transform(me, orco, me->totvert, 0);
mloopuv = me->mloopuv;
orco = dm->getVertDataArray(dm, CD_ORCO);
mloopuv = dm->getLoopDataArray(dm, CD_MLOOPUV);
}
else {
orco = NULL;
@ -1215,7 +1220,7 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
if (mloopuv) {
int j;
for (j = 0; j < mpoly->totloop; j++) {
madd_v2_v2fl(dob->orco, mloopuv[loopstart[j].v].uv, w);
madd_v2_v2fl(dob->uv, mloopuv[mp->loopstart + j].uv, w);
}
}
}
@ -1238,9 +1243,6 @@ static void face_duplilist(ListBase *lb, ID *id, Scene *scene, Object *par, floa
else go = go->next; /* group loop */
}
if (orco)
MEM_freeN(orco);
dm->release(dm);
}