Mesh *BKE_mesh_create_derived_for_modifier(struct Depsgraph *depsgraph,
Scene *scene,
Object *ob_eval,
ModifierData *md_eval,
int build_shapekey_layers)
{
Mesh *me = ob_eval->runtime.mesh_orig ? ob_eval->runtime.mesh_orig : ob_eval->data;
const ModifierTypeInfo *mti = modifierType_getInfo(md_eval->type);
Mesh *result;
KeyBlock *kb;
ModifierEvalContext mectx = {depsgraph, ob_eval, 0};
if (!(md_eval->mode & eModifierMode_Realtime)) {
return NULL;
}
if (mti->isDisabled && mti->isDisabled(scene, md_eval, 0)) {
return NULL;
}
if (build_shapekey_layers && me->key &&
(kb = BLI_findlink(&me->key->block, ob_eval->shapenr - 1))) {
BKE_keyblock_convert_to_mesh(kb, me);
}
if (mti->type == eModifierTypeType_OnlyDeform) {
int numVerts;
float(*deformedVerts)[3] = BKE_mesh_vertexCos_get(me, &numVerts);
BKE_id_copy_ex(NULL, &me->id, (ID **)&result, LIB_ID_COPY_LOCALIZE);
mti->deformVerts(md_eval, &mectx, result, deformedVerts, numVerts);
BKE_mesh_apply_vert_coords(result, deformedVerts);
if (build_shapekey_layers) {
add_shapekey_layers(result, me);
}
MEM_freeN(deformedVerts);
}
else {
Mesh *mesh_temp;
BKE_id_copy_ex(NULL, &me->id, (ID **)&mesh_temp, LIB_ID_COPY_LOCALIZE);
if (build_shapekey_layers) {
add_shapekey_layers(mesh_temp, me);
}
result = mti->applyModifier(md_eval, &mectx, mesh_temp);
ASSERT_IS_VALID_MESH(result);
if (mesh_temp != result) {
BKE_id_free(NULL, mesh_temp);
}
}
return result;
}
void GeometryExporter::operator()(Object *ob)
{
// XXX don't use DerivedMesh, Mesh instead?
#if 0
DerivedMesh *dm = mesh_get_derived_final(mScene, ob, CD_MASK_BAREMESH);
#endif
bool use_instantiation = this->export_settings->use_object_instantiation;
Mesh *me = bc_get_mesh_copy( mScene,
ob,
this->export_settings->export_mesh_type,
this->export_settings->apply_modifiers,
this->export_settings->triangulate);
Mesh *mesh = (Mesh *) ob->data;
me->flag = mesh->flag;
std::string geom_id = get_geometry_id(ob, use_instantiation);
std::vector<Normal> nor;
std::vector<BCPolygonNormalsIndices> norind;
// Skip if linked geometry was already exported from another reference
if (use_instantiation &&
exportedGeometry.find(geom_id) != exportedGeometry.end())
{
return;
}
std::string geom_name = (use_instantiation) ? id_name(ob->data) : id_name(ob);
exportedGeometry.insert(geom_id);
bool has_color = (bool)CustomData_has_layer(&me->fdata, CD_MCOL);
create_normals(nor, norind, me);
// openMesh(geoId, geoName, meshId)
openMesh(geom_id, geom_name);
// writes <source> for vertex coords
createVertsSource(geom_id, me);
// writes <source> for normal coords
createNormalsSource(geom_id, me, nor);
bool has_uvs = (bool)CustomData_has_layer(&me->fdata, CD_MTFACE);
// writes <source> for uv coords if mesh has uv coords
if (has_uvs) {
createTexcoordsSource(geom_id, me);
}
if (has_color) {
createVertexColorSource(geom_id, me);
}
// <vertices>
COLLADASW::Vertices verts(mSW);
verts.setId(getIdBySemantics(geom_id, COLLADASW::InputSemantic::VERTEX));
COLLADASW::InputList &input_list = verts.getInputList();
COLLADASW::Input input(COLLADASW::InputSemantic::POSITION, getUrlBySemantics(geom_id, COLLADASW::InputSemantic::POSITION));
input_list.push_back(input);
verts.add();
createLooseEdgeList(ob, me, geom_id);
// Only create Polylists if number of faces > 0
if (me->totface > 0) {
// XXX slow
if (ob->totcol) {
for (int a = 0; a < ob->totcol; a++) {
createPolylist(a, has_uvs, has_color, ob, me, geom_id, norind);
}
}
else {
createPolylist(0, has_uvs, has_color, ob, me, geom_id, norind);
}
}
closeMesh();
if (me->flag & ME_TWOSIDED) {
mSW->appendTextBlock("<extra><technique profile=\"MAYA\"><double_sided>1</double_sided></technique></extra>");
}
closeGeometry();
if (this->export_settings->include_shapekeys) {
Key * key = BKE_key_from_object(ob);
if (key) {
KeyBlock * kb = (KeyBlock *)key->block.first;
//skip the basis
kb = kb->next;
for (; kb; kb = kb->next) {
BKE_keyblock_convert_to_mesh(kb, me);
export_key_mesh(ob, me, kb);
}
}
}
BKE_libblock_free_us(G.main, me);
}