Mesh *bc_get_mesh_copy(Scene *scene, Object *ob, BC_export_mesh_type export_mesh_type, bool apply_modifiers, bool triangulate)
{
Mesh *tmpmesh;
CustomDataMask mask = CD_MASK_MESH;
Mesh *mesh = (Mesh *)ob->data;
DerivedMesh *dm = NULL;
if (apply_modifiers) {
switch (export_mesh_type) {
case BC_MESH_TYPE_VIEW:
{
dm = mesh_create_derived_view(scene, ob, mask);
break;
}
case BC_MESH_TYPE_RENDER:
{
dm = mesh_create_derived_render(scene, ob, mask);
break;
}
}
}
else {
dm = mesh_create_derived((Mesh *)ob->data, NULL);
}
tmpmesh = BKE_mesh_add(G.main, "ColladaMesh"); // name is not important here
DM_to_mesh(dm, tmpmesh, ob, CD_MASK_MESH, true);
tmpmesh->flag = mesh->flag;
if (triangulate) {
bc_triangulate_mesh(tmpmesh);
}
BKE_mesh_tessface_ensure(tmpmesh);
return tmpmesh;
}
int NewBooleanMesh(Scene *scene, Base *base, Base *base_select, int int_op_type)
{
Mesh *me_new;
int a, maxmat, totmat= 0;
Object *ob_new, *ob, *ob_select;
Material **mat;
DerivedMesh *result;
DerivedMesh *dm_select;
DerivedMesh *dm;
ob= base->object;
ob_select= base_select->object;
dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
dm_select = mesh_create_derived_view(scene, ob_select, 0); // no modifiers in editmode ??
maxmat= ob->totcol + ob_select->totcol;
mat= (Material**)MEM_mallocN(sizeof(Material*)*maxmat, "NewBooleanMeshMat");
/* put some checks in for nice user feedback */
if (dm == NULL || dm_select == NULL) return 0;
if (!dm->getNumFaces(dm) || !dm_select->getNumFaces(dm_select))
{
MEM_freeN(mat);
return -1;
}
result= NewBooleanDerivedMesh_intern(dm, ob, dm_select, ob_select, int_op_type, mat, &totmat);
if (result == NULL) {
MEM_freeN(mat);
return 0;
}
/* create a new blender mesh object - using 'base' as a template */
ob_new= AddNewBlenderMesh(scene, base_select);
me_new= ob_new->data;
DM_to_mesh(result, me_new);
result->release(result);
dm->release(dm);
dm_select->release(dm_select);
/* add materials to object */
for (a = 0; a < totmat; a++)
assign_material(ob_new, mat[a], a+1);
MEM_freeN(mat);
/* update dag */
DAG_id_tag_update(&ob_new->id, OB_RECALC_DATA);
return 1;
}
static int modifier_apply_obdata(ReportList *reports, Scene *scene, Object *ob, ModifierData *md)
{
ModifierTypeInfo *mti= modifierType_getInfo(md->type);
md->scene= scene;
if (mti->isDisabled && mti->isDisabled(md, 0)) {
BKE_report(reports, RPT_ERROR, "Modifier is disabled, skipping apply");
return 0;
}
if (ob->type==OB_MESH) {
DerivedMesh *dm;
Mesh *me = ob->data;
MultiresModifierData *mmd= find_multires_modifier_before(scene, md);
if(me->key && mti->type != eModifierTypeType_NonGeometrical) {
BKE_report(reports, RPT_ERROR, "Modifier cannot be applied to Mesh with Shape Keys");
return 0;
}
/* Multires: ensure that recent sculpting is applied */
if(md->type == eModifierType_Multires)
multires_force_update(ob);
if (mmd && mmd->totlvl && mti->type==eModifierTypeType_OnlyDeform) {
if(!multiresModifier_reshapeFromDeformMod (scene, mmd, ob, md)) {
BKE_report(reports, RPT_ERROR, "Multires modifier returned error, skipping apply");
return 0;
}
} else {
dm = mesh_create_derived_for_modifier(scene, ob, md);
if (!dm) {
BKE_report(reports, RPT_ERROR, "Modifier returned error, skipping apply");
return 0;
}
DM_to_mesh(dm, me);
dm->release(dm);
if(md->type == eModifierType_Multires) {
CustomData_external_remove(&me->fdata, &me->id, CD_MDISPS, me->totface);
CustomData_free_layer_active(&me->fdata, CD_MDISPS, me->totface);
}
}
}
else if (ELEM(ob->type, OB_CURVE, OB_SURF)) {
Curve *cu;
int numVerts;
float (*vertexCos)[3];
if (ELEM(mti->type, eModifierTypeType_Constructive, eModifierTypeType_Nonconstructive)) {
BKE_report(reports, RPT_ERROR, "Cannot apply constructive modifiers on curve");
return 0;
}
cu = ob->data;
BKE_report(reports, RPT_INFO, "Applied modifier only changed CV points, not tesselated/bevel vertices");
vertexCos = curve_getVertexCos(cu, &cu->nurb, &numVerts);
mti->deformVerts(md, ob, NULL, vertexCos, numVerts, 0, 0);
curve_applyVertexCos(cu, &cu->nurb, vertexCos);
MEM_freeN(vertexCos);
DAG_id_tag_update(&ob->id, OB_RECALC_DATA);
}
else {
BKE_report(reports, RPT_ERROR, "Cannot apply modifier for this object type");
return 0;
}
/* lattice modifier can be applied to particle system too */
if(ob->particlesystem.first) {
ParticleSystem *psys = ob->particlesystem.first;
for(; psys; psys=psys->next) {
if(psys->part->type != PART_HAIR)
continue;
psys_apply_hair_lattice(scene, ob, psys);
}
}
return 1;
}
/* settings: 0 - preview, 1 - render */
Mesh *rna_Object_to_mesh(Object *ob, ReportList *reports, Scene *sce, int apply_modifiers, int settings)
{
Mesh *tmpmesh;
Curve *tmpcu = NULL;
Object *tmpobj = NULL;
int render = settings == eModifierMode_Render, i;
int cage = !apply_modifiers;
/* perform the mesh extraction based on type */
switch (ob->type) {
case OB_FONT:
case OB_CURVE:
case OB_SURF:
/* copies object and modifiers (but not the data) */
tmpobj= copy_object(ob);
tmpcu = (Curve *)tmpobj->data;
tmpcu->id.us--;
/* if getting the original caged mesh, delete object modifiers */
if( cage )
object_free_modifiers(tmpobj);
/* copies the data */
tmpobj->data = copy_curve( (Curve *) ob->data );
#if 0
/* copy_curve() sets disp.first null, so currently not need */
{
Curve *cu;
cu = (Curve *)tmpobj->data;
if( cu->disp.first )
MEM_freeN( cu->disp.first );
cu->disp.first = NULL;
}
#endif
/* get updated display list, and convert to a mesh */
makeDispListCurveTypes( sce, tmpobj, 0 );
nurbs_to_mesh( tmpobj );
/* nurbs_to_mesh changes the type to a mesh, check it worked */
if (tmpobj->type != OB_MESH) {
free_libblock_us( &(G.main->object), tmpobj );
BKE_report(reports, RPT_ERROR, "cant convert curve to mesh. Does the curve have any segments?");
return NULL;
}
tmpmesh = tmpobj->data;
free_libblock_us( &G.main->object, tmpobj );
break;
case OB_MBALL: {
/* metaballs don't have modifiers, so just convert to mesh */
Object *basis_ob = find_basis_mball(sce, ob);
/* todo, re-generatre for render-res */
/* metaball_polygonize(scene, ob) */
if(ob != basis_ob)
return NULL; /* only do basis metaball */
tmpmesh = add_mesh("Mesh");
if(render) {
ListBase disp = {NULL, NULL};
makeDispListMBall_forRender(sce, ob, &disp);
mball_to_mesh(&disp, tmpmesh);
freedisplist(&disp);
}
else
mball_to_mesh(&ob->disp, tmpmesh);
break;
}
case OB_MESH:
/* copies object and modifiers (but not the data) */
if (cage) {
/* copies the data */
tmpmesh = copy_mesh( ob->data );
/* if not getting the original caged mesh, get final derived mesh */
} else {
/* Make a dummy mesh, saves copying */
DerivedMesh *dm;
/* CustomDataMask mask = CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL; */
CustomDataMask mask = CD_MASK_MESH; /* this seems more suitable, exporter,
for example, needs CD_MASK_MDEFORMVERT */
/* Write the display mesh into the dummy mesh */
if (render)
dm = mesh_create_derived_render( sce, ob, mask );
else
dm = mesh_create_derived_view( sce, ob, mask );
tmpmesh = add_mesh( "Mesh" );
DM_to_mesh( dm, tmpmesh );
dm->release( dm );
}
break;
default:
BKE_report(reports, RPT_ERROR, "Object does not have geometry data");
return NULL;
}
/* Copy materials to new mesh */
switch (ob->type) {
case OB_SURF:
case OB_FONT:
case OB_CURVE:
tmpmesh->totcol = tmpcu->totcol;
/* free old material list (if it exists) and adjust user counts */
if( tmpcu->mat ) {
for( i = tmpcu->totcol; i-- > 0; ) {
/* are we an object material or data based? */
tmpmesh->mat[i] = ob->matbits[i] ? ob->mat[i] : tmpcu->mat[i];
if (tmpmesh->mat[i]) {
tmpmesh->mat[i]->id.us++;
}
}
}
break;
#if 0
/* Crashes when assigning the new material, not sure why */
case OB_MBALL:
tmpmb = (MetaBall *)ob->data;
tmpmesh->totcol = tmpmb->totcol;
/* free old material list (if it exists) and adjust user counts */
if( tmpmb->mat ) {
for( i = tmpmb->totcol; i-- > 0; ) {
tmpmesh->mat[i] = tmpmb->mat[i]; /* CRASH HERE ??? */
if (tmpmesh->mat[i]) {
tmpmb->mat[i]->id.us++;
}
}
}
break;
#endif
case OB_MESH:
if (!cage) {
Mesh *origmesh= ob->data;
tmpmesh->flag= origmesh->flag;
tmpmesh->mat = MEM_dupallocN(origmesh->mat);
tmpmesh->totcol = origmesh->totcol;
tmpmesh->smoothresh= origmesh->smoothresh;
if( origmesh->mat ) {
for( i = origmesh->totcol; i-- > 0; ) {
/* are we an object material or data based? */
tmpmesh->mat[i] = ob->matbits[i] ? ob->mat[i] : origmesh->mat[i];
if (tmpmesh->mat[i]) {
tmpmesh->mat[i]->id.us++;
}
}
}
}
break;
} /* end copy materials */
/* we don't assign it to anything */
tmpmesh->id.us--;
/* make sure materials get updated in objects */
test_object_materials( ( ID * ) tmpmesh );
return tmpmesh;
}
