Hans Goudey
594ee5f160
The point domain attributes (stored on splines) are sorted so they have a consistent order on all splines after the join. However, spline domain attributes were included in the new order, which didn't work because the length of the attribute lists didn't match. The simple fix is to only include point domain attributes in the new order vector.
685 lines
26 KiB
C++
685 lines
26 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "BKE_collection.h"
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#include "BKE_geometry_set_instances.hh"
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#include "BKE_material.h"
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#include "BKE_mesh.h"
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#include "BKE_mesh_wrapper.h"
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#include "BKE_modifier.h"
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#include "BKE_pointcloud.h"
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#include "BKE_spline.hh"
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#include "DNA_collection_types.h"
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#include "DNA_layer_types.h"
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#include "DNA_mesh_types.h"
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#include "DNA_meshdata_types.h"
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#include "DNA_object_types.h"
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#include "DNA_pointcloud_types.h"
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namespace blender::bke {
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static void geometry_set_collect_recursive(const GeometrySet &geometry_set,
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const float4x4 &transform,
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Vector<GeometryInstanceGroup> &r_sets);
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static void geometry_set_collect_recursive_collection(const Collection &collection,
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const float4x4 &transform,
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Vector<GeometryInstanceGroup> &r_sets);
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static void add_final_mesh_as_geometry_component(const Object &object, GeometrySet &geometry_set)
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{
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Mesh *mesh = BKE_modifier_get_evaluated_mesh_from_evaluated_object(&const_cast<Object &>(object),
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false);
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if (mesh != nullptr) {
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BKE_mesh_wrapper_ensure_mdata(mesh);
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MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
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mesh_component.replace(mesh, GeometryOwnershipType::ReadOnly);
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}
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}
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/**
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* \note This doesn't extract instances from the "dupli" system for non-geometry-nodes instances.
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*/
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GeometrySet object_get_evaluated_geometry_set(const Object &object)
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{
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if (object.type == OB_MESH && object.mode == OB_MODE_EDIT) {
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GeometrySet geometry_set;
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if (object.runtime.geometry_set_eval != nullptr) {
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/* `geometry_set_eval` only contains non-mesh components, see `editbmesh_build_data`. */
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geometry_set = *object.runtime.geometry_set_eval;
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}
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add_final_mesh_as_geometry_component(object, geometry_set);
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return geometry_set;
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}
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if (object.runtime.geometry_set_eval != nullptr) {
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return *object.runtime.geometry_set_eval;
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}
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/* Otherwise, construct a new geometry set with the component based on the object type. */
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GeometrySet geometry_set;
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if (object.type == OB_MESH) {
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add_final_mesh_as_geometry_component(object, geometry_set);
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}
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/* TODO: Cover the case of point-clouds without modifiers-- they may not be covered by the
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* #geometry_set_eval case above. */
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/* TODO: Add volume support. */
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/* Return by value since there is not always an existing geometry set owned elsewhere to use. */
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return geometry_set;
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}
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static void geometry_set_collect_recursive_collection_instance(
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const Collection &collection, const float4x4 &transform, Vector<GeometryInstanceGroup> &r_sets)
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{
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float4x4 offset_matrix;
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unit_m4(offset_matrix.values);
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sub_v3_v3(offset_matrix.values[3], collection.instance_offset);
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const float4x4 instance_transform = transform * offset_matrix;
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geometry_set_collect_recursive_collection(collection, instance_transform, r_sets);
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}
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static void geometry_set_collect_recursive_object(const Object &object,
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const float4x4 &transform,
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Vector<GeometryInstanceGroup> &r_sets)
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{
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GeometrySet instance_geometry_set = object_get_evaluated_geometry_set(object);
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geometry_set_collect_recursive(instance_geometry_set, transform, r_sets);
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if (object.type == OB_EMPTY) {
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const Collection *collection_instance = object.instance_collection;
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if (collection_instance != nullptr) {
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geometry_set_collect_recursive_collection_instance(*collection_instance, transform, r_sets);
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}
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}
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}
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static void geometry_set_collect_recursive_collection(const Collection &collection,
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const float4x4 &transform,
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Vector<GeometryInstanceGroup> &r_sets)
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{
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LISTBASE_FOREACH (const CollectionObject *, collection_object, &collection.gobject) {
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BLI_assert(collection_object->ob != nullptr);
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const Object &object = *collection_object->ob;
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const float4x4 object_transform = transform * object.obmat;
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geometry_set_collect_recursive_object(object, object_transform, r_sets);
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}
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LISTBASE_FOREACH (const CollectionChild *, collection_child, &collection.children) {
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BLI_assert(collection_child->collection != nullptr);
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const Collection &collection = *collection_child->collection;
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geometry_set_collect_recursive_collection(collection, transform, r_sets);
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}
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}
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static void geometry_set_collect_recursive(const GeometrySet &geometry_set,
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const float4x4 &transform,
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Vector<GeometryInstanceGroup> &r_sets)
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{
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r_sets.append({geometry_set, {transform}});
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if (geometry_set.has_instances()) {
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const InstancesComponent &instances_component =
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*geometry_set.get_component_for_read<InstancesComponent>();
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Span<float4x4> transforms = instances_component.instance_transforms();
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Span<int> handles = instances_component.instance_reference_handles();
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Span<InstanceReference> references = instances_component.references();
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for (const int i : transforms.index_range()) {
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const InstanceReference &reference = references[handles[i]];
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const float4x4 instance_transform = transform * transforms[i];
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switch (reference.type()) {
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case InstanceReference::Type::Object: {
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Object &object = reference.object();
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geometry_set_collect_recursive_object(object, instance_transform, r_sets);
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break;
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}
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case InstanceReference::Type::Collection: {
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Collection &collection = reference.collection();
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geometry_set_collect_recursive_collection_instance(
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collection, instance_transform, r_sets);
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break;
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}
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case InstanceReference::Type::GeometrySet: {
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const GeometrySet &geometry_set = reference.geometry_set();
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geometry_set_collect_recursive(geometry_set, instance_transform, r_sets);
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break;
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}
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case InstanceReference::Type::None: {
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break;
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}
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}
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}
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}
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}
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/**
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* Return flattened vector of the geometry component's recursive instances. I.e. all collection
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* instances and object instances will be expanded into the instances of their geometry components.
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* Even the instances in those geometry components' will be included.
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*
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* \note For convenience (to avoid duplication in the caller), the returned vector also contains
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* the argument geometry set.
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*
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* \note This doesn't extract instances from the "dupli" system for non-geometry-nodes instances.
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*/
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void geometry_set_gather_instances(const GeometrySet &geometry_set,
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Vector<GeometryInstanceGroup> &r_instance_groups)
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{
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float4x4 unit_transform;
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unit_m4(unit_transform.values);
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geometry_set_collect_recursive(geometry_set, unit_transform, r_instance_groups);
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}
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void geometry_set_gather_instances_attribute_info(Span<GeometryInstanceGroup> set_groups,
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Span<GeometryComponentType> component_types,
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const Set<std::string> &ignored_attributes,
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Map<AttributeIDRef, AttributeKind> &r_attributes)
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{
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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for (const GeometryComponentType component_type : component_types) {
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if (!set.has(component_type)) {
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continue;
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}
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const GeometryComponent &component = *set.get_component_for_read(component_type);
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component.attribute_foreach(
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[&](const AttributeIDRef &attribute_id, const AttributeMetaData &meta_data) {
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if (attribute_id.is_named() && ignored_attributes.contains(attribute_id.name())) {
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return true;
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}
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auto add_info = [&](AttributeKind *attribute_kind) {
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attribute_kind->domain = meta_data.domain;
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attribute_kind->data_type = meta_data.data_type;
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};
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auto modify_info = [&](AttributeKind *attribute_kind) {
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attribute_kind->domain = meta_data.domain; /* TODO: Use highest priority domain. */
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attribute_kind->data_type = bke::attribute_data_type_highest_complexity(
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{attribute_kind->data_type, meta_data.data_type});
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};
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r_attributes.add_or_modify(attribute_id, add_info, modify_info);
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return true;
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});
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}
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}
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}
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static Mesh *join_mesh_topology_and_builtin_attributes(Span<GeometryInstanceGroup> set_groups)
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{
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int totverts = 0;
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int totloops = 0;
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int totedges = 0;
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int totpolys = 0;
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int64_t cd_dirty_vert = 0;
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int64_t cd_dirty_poly = 0;
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int64_t cd_dirty_edge = 0;
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int64_t cd_dirty_loop = 0;
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VectorSet<Material *> materials;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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const int tot_transforms = set_group.transforms.size();
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if (set.has_mesh()) {
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const Mesh &mesh = *set.get_mesh_for_read();
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totverts += mesh.totvert * tot_transforms;
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totloops += mesh.totloop * tot_transforms;
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totedges += mesh.totedge * tot_transforms;
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totpolys += mesh.totpoly * tot_transforms;
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cd_dirty_vert |= mesh.runtime.cd_dirty_vert;
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cd_dirty_poly |= mesh.runtime.cd_dirty_poly;
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cd_dirty_edge |= mesh.runtime.cd_dirty_edge;
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cd_dirty_loop |= mesh.runtime.cd_dirty_loop;
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for (const int slot_index : IndexRange(mesh.totcol)) {
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Material *material = mesh.mat[slot_index];
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materials.add(material);
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}
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}
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}
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/* Don't create an empty mesh. */
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if ((totverts + totloops + totedges + totpolys) == 0) {
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return nullptr;
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}
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Mesh *new_mesh = BKE_mesh_new_nomain(totverts, totedges, 0, totloops, totpolys);
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/* Copy settings from the first input geometry set with a mesh. */
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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if (set.has_mesh()) {
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const Mesh &mesh = *set.get_mesh_for_read();
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BKE_mesh_copy_parameters_for_eval(new_mesh, &mesh);
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break;
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}
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}
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for (const int i : IndexRange(materials.size())) {
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Material *material = materials[i];
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BKE_id_material_eval_assign(&new_mesh->id, i + 1, material);
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}
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new_mesh->runtime.cd_dirty_vert = cd_dirty_vert;
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new_mesh->runtime.cd_dirty_poly = cd_dirty_poly;
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new_mesh->runtime.cd_dirty_edge = cd_dirty_edge;
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new_mesh->runtime.cd_dirty_loop = cd_dirty_loop;
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int vert_offset = 0;
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int loop_offset = 0;
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int edge_offset = 0;
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int poly_offset = 0;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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if (set.has_mesh()) {
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const Mesh &mesh = *set.get_mesh_for_read();
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Array<int> material_index_map(mesh.totcol);
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for (const int i : IndexRange(mesh.totcol)) {
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Material *material = mesh.mat[i];
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const int new_material_index = materials.index_of(material);
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material_index_map[i] = new_material_index;
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}
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for (const float4x4 &transform : set_group.transforms) {
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for (const int i : IndexRange(mesh.totvert)) {
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const MVert &old_vert = mesh.mvert[i];
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MVert &new_vert = new_mesh->mvert[vert_offset + i];
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new_vert = old_vert;
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const float3 new_position = transform * float3(old_vert.co);
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copy_v3_v3(new_vert.co, new_position);
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}
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for (const int i : IndexRange(mesh.totedge)) {
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const MEdge &old_edge = mesh.medge[i];
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MEdge &new_edge = new_mesh->medge[edge_offset + i];
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new_edge = old_edge;
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new_edge.v1 += vert_offset;
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new_edge.v2 += vert_offset;
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}
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for (const int i : IndexRange(mesh.totloop)) {
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const MLoop &old_loop = mesh.mloop[i];
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MLoop &new_loop = new_mesh->mloop[loop_offset + i];
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new_loop = old_loop;
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new_loop.v += vert_offset;
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new_loop.e += edge_offset;
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}
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for (const int i : IndexRange(mesh.totpoly)) {
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const MPoly &old_poly = mesh.mpoly[i];
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MPoly &new_poly = new_mesh->mpoly[poly_offset + i];
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new_poly = old_poly;
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new_poly.loopstart += loop_offset;
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if (old_poly.mat_nr >= 0 && old_poly.mat_nr < mesh.totcol) {
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new_poly.mat_nr = material_index_map[new_poly.mat_nr];
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}
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else {
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/* The material index was invalid before. */
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new_poly.mat_nr = 0;
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}
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}
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vert_offset += mesh.totvert;
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loop_offset += mesh.totloop;
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edge_offset += mesh.totedge;
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poly_offset += mesh.totpoly;
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}
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}
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}
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/* A possible optimization is to only tag the normals dirty when there are transforms that change
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* normals. */
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BKE_mesh_normals_tag_dirty(new_mesh);
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return new_mesh;
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}
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static void join_attributes(Span<GeometryInstanceGroup> set_groups,
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Span<GeometryComponentType> component_types,
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const Map<AttributeIDRef, AttributeKind> &attribute_info,
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GeometryComponent &result)
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{
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for (Map<AttributeIDRef, AttributeKind>::Item entry : attribute_info.items()) {
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const AttributeIDRef attribute_id = entry.key;
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const AttributeDomain domain_output = entry.value.domain;
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const CustomDataType data_type_output = entry.value.data_type;
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const CPPType *cpp_type = bke::custom_data_type_to_cpp_type(data_type_output);
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BLI_assert(cpp_type != nullptr);
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result.attribute_try_create(
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entry.key, domain_output, data_type_output, AttributeInitDefault());
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WriteAttributeLookup write_attribute = result.attribute_try_get_for_write(attribute_id);
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if (!write_attribute || &write_attribute.varray->type() != cpp_type ||
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write_attribute.domain != domain_output) {
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continue;
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}
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fn::GVMutableArray_GSpan dst_span{*write_attribute.varray};
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int offset = 0;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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for (const GeometryComponentType component_type : component_types) {
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if (set.has(component_type)) {
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const GeometryComponent &component = *set.get_component_for_read(component_type);
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const int domain_size = component.attribute_domain_size(domain_output);
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if (domain_size == 0) {
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continue; /* Domain size is 0, so no need to increment the offset. */
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}
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GVArrayPtr source_attribute = component.attribute_try_get_for_read(
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attribute_id, domain_output, data_type_output);
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if (source_attribute) {
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fn::GVArray_GSpan src_span{*source_attribute};
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const void *src_buffer = src_span.data();
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for (const int UNUSED(i) : set_group.transforms.index_range()) {
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void *dst_buffer = dst_span[offset];
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cpp_type->copy_assign_n(src_buffer, dst_buffer, domain_size);
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offset += domain_size;
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}
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}
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else {
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offset += domain_size * set_group.transforms.size();
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}
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}
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}
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}
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dst_span.save();
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}
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}
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static PointCloud *join_pointcloud_position_attribute(Span<GeometryInstanceGroup> set_groups)
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{
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/* Count the total number of points. */
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int totpoint = 0;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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if (set.has<PointCloudComponent>()) {
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const PointCloudComponent &component = *set.get_component_for_read<PointCloudComponent>();
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totpoint += component.attribute_domain_size(ATTR_DOMAIN_POINT);
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}
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}
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if (totpoint == 0) {
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return nullptr;
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}
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PointCloud *new_pointcloud = BKE_pointcloud_new_nomain(totpoint);
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MutableSpan new_positions{(float3 *)new_pointcloud->co, new_pointcloud->totpoint};
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/* Transform each instance's point locations into the new point cloud. */
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int offset = 0;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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const PointCloud *pointcloud = set.get_pointcloud_for_read();
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if (pointcloud == nullptr) {
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continue;
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}
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for (const float4x4 &transform : set_group.transforms) {
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for (const int i : IndexRange(pointcloud->totpoint)) {
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new_positions[offset + i] = transform * float3(pointcloud->co[i]);
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}
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offset += pointcloud->totpoint;
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}
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}
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return new_pointcloud;
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}
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static CurveEval *join_curve_splines_and_builtin_attributes(Span<GeometryInstanceGroup> set_groups)
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{
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Vector<SplinePtr> new_splines;
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for (const GeometryInstanceGroup &set_group : set_groups) {
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const GeometrySet &set = set_group.geometry_set;
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if (!set.has_curve()) {
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continue;
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}
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const CurveEval &source_curve = *set.get_curve_for_read();
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for (const SplinePtr &source_spline : source_curve.splines()) {
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for (const float4x4 &transform : set_group.transforms) {
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SplinePtr new_spline = source_spline->copy_without_attributes();
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new_spline->transform(transform);
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new_splines.append(std::move(new_spline));
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}
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}
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}
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if (new_splines.is_empty()) {
|
|
return nullptr;
|
|
}
|
|
|
|
CurveEval *new_curve = new CurveEval();
|
|
for (SplinePtr &new_spline : new_splines) {
|
|
new_curve->add_spline(std::move(new_spline));
|
|
}
|
|
|
|
new_curve->attributes.reallocate(new_curve->splines().size());
|
|
return new_curve;
|
|
}
|
|
|
|
static void join_instance_groups_mesh(Span<GeometryInstanceGroup> set_groups, GeometrySet &result)
|
|
{
|
|
Mesh *new_mesh = join_mesh_topology_and_builtin_attributes(set_groups);
|
|
if (new_mesh == nullptr) {
|
|
return;
|
|
}
|
|
|
|
MeshComponent &dst_component = result.get_component_for_write<MeshComponent>();
|
|
dst_component.replace(new_mesh);
|
|
|
|
/* Don't copy attributes that are stored directly in the mesh data structs. */
|
|
Map<AttributeIDRef, AttributeKind> attributes;
|
|
geometry_set_gather_instances_attribute_info(
|
|
set_groups,
|
|
{GEO_COMPONENT_TYPE_MESH},
|
|
{"position", "material_index", "normal", "shade_smooth", "crease"},
|
|
attributes);
|
|
join_attributes(set_groups,
|
|
{GEO_COMPONENT_TYPE_MESH},
|
|
attributes,
|
|
static_cast<GeometryComponent &>(dst_component));
|
|
}
|
|
|
|
static void join_instance_groups_pointcloud(Span<GeometryInstanceGroup> set_groups,
|
|
GeometrySet &result)
|
|
{
|
|
PointCloud *new_pointcloud = join_pointcloud_position_attribute(set_groups);
|
|
if (new_pointcloud == nullptr) {
|
|
return;
|
|
}
|
|
|
|
PointCloudComponent &dst_component = result.get_component_for_write<PointCloudComponent>();
|
|
dst_component.replace(new_pointcloud);
|
|
|
|
Map<AttributeIDRef, AttributeKind> attributes;
|
|
geometry_set_gather_instances_attribute_info(
|
|
set_groups, {GEO_COMPONENT_TYPE_POINT_CLOUD}, {"position"}, attributes);
|
|
join_attributes(set_groups,
|
|
{GEO_COMPONENT_TYPE_POINT_CLOUD},
|
|
attributes,
|
|
static_cast<GeometryComponent &>(dst_component));
|
|
}
|
|
|
|
static void join_instance_groups_volume(Span<GeometryInstanceGroup> set_groups,
|
|
GeometrySet &result)
|
|
{
|
|
/* Not yet supported; for now only return the first volume. Joining volume grids with the same
|
|
* name requires resampling of at least one of the grids. The cell size of the resulting volume
|
|
* has to be determined somehow. */
|
|
for (const GeometryInstanceGroup &set_group : set_groups) {
|
|
const GeometrySet &set = set_group.geometry_set;
|
|
if (set.has<VolumeComponent>()) {
|
|
result.add(*set.get_component_for_read<VolumeComponent>());
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Curve point domain attributes must be in the same order on every spline. The order might have
|
|
* been different on separate instances, so ensure that all splines have the same order. Note that
|
|
* because #Map is used, the order is not necessarily consistent every time, but it is the same for
|
|
* every spline, and that's what matters.
|
|
*/
|
|
static void sort_curve_point_attributes(const Map<AttributeIDRef, AttributeKind> &info,
|
|
MutableSpan<SplinePtr> splines)
|
|
{
|
|
Vector<AttributeIDRef> new_order;
|
|
for (Map<AttributeIDRef, AttributeKind>::Item item : info.items()) {
|
|
if (item.value.domain == ATTR_DOMAIN_POINT) {
|
|
/* Only sort attributes stored on splines. */
|
|
new_order.append(item.key);
|
|
}
|
|
}
|
|
for (SplinePtr &spline : splines) {
|
|
spline->attributes.reorder(new_order);
|
|
}
|
|
}
|
|
|
|
static void join_instance_groups_curve(Span<GeometryInstanceGroup> set_groups, GeometrySet &result)
|
|
{
|
|
CurveEval *curve = join_curve_splines_and_builtin_attributes(set_groups);
|
|
if (curve == nullptr) {
|
|
return;
|
|
}
|
|
|
|
CurveComponent &dst_component = result.get_component_for_write<CurveComponent>();
|
|
dst_component.replace(curve);
|
|
|
|
Map<AttributeIDRef, AttributeKind> attributes;
|
|
geometry_set_gather_instances_attribute_info(
|
|
set_groups,
|
|
{GEO_COMPONENT_TYPE_CURVE},
|
|
{"position", "radius", "tilt", "handle_left", "handle_right", "cyclic", "resolution"},
|
|
attributes);
|
|
join_attributes(set_groups,
|
|
{GEO_COMPONENT_TYPE_CURVE},
|
|
attributes,
|
|
static_cast<GeometryComponent &>(dst_component));
|
|
sort_curve_point_attributes(attributes, curve->splines());
|
|
curve->assert_valid_point_attributes();
|
|
}
|
|
|
|
GeometrySet geometry_set_realize_instances(const GeometrySet &geometry_set)
|
|
{
|
|
if (!geometry_set.has_instances()) {
|
|
return geometry_set;
|
|
}
|
|
|
|
GeometrySet new_geometry_set;
|
|
|
|
Vector<GeometryInstanceGroup> set_groups;
|
|
geometry_set_gather_instances(geometry_set, set_groups);
|
|
join_instance_groups_mesh(set_groups, new_geometry_set);
|
|
join_instance_groups_pointcloud(set_groups, new_geometry_set);
|
|
join_instance_groups_volume(set_groups, new_geometry_set);
|
|
join_instance_groups_curve(set_groups, new_geometry_set);
|
|
|
|
return new_geometry_set;
|
|
}
|
|
|
|
} // namespace blender::bke
|
|
|
|
void InstancesComponent::foreach_referenced_geometry(
|
|
blender::FunctionRef<void(const GeometrySet &geometry_set)> callback) const
|
|
{
|
|
using namespace blender::bke;
|
|
for (const InstanceReference &reference : references_) {
|
|
switch (reference.type()) {
|
|
case InstanceReference::Type::Object: {
|
|
const Object &object = reference.object();
|
|
const GeometrySet object_geometry_set = object_get_evaluated_geometry_set(object);
|
|
callback(object_geometry_set);
|
|
break;
|
|
}
|
|
case InstanceReference::Type::Collection: {
|
|
Collection &collection = reference.collection();
|
|
FOREACH_COLLECTION_OBJECT_RECURSIVE_BEGIN (&collection, object) {
|
|
const GeometrySet object_geometry_set = object_get_evaluated_geometry_set(*object);
|
|
callback(object_geometry_set);
|
|
}
|
|
FOREACH_COLLECTION_OBJECT_RECURSIVE_END;
|
|
break;
|
|
}
|
|
case InstanceReference::Type::GeometrySet: {
|
|
const GeometrySet &instance_geometry_set = reference.geometry_set();
|
|
callback(instance_geometry_set);
|
|
break;
|
|
}
|
|
case InstanceReference::Type::None: {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If references have a collection or object type, convert them into geometry instances
|
|
* recursively. After that, the geometry sets can be edited. There may still be instances of other
|
|
* types of they can't be converted to geometry sets.
|
|
*/
|
|
void InstancesComponent::ensure_geometry_instances()
|
|
{
|
|
using namespace blender;
|
|
using namespace blender::bke;
|
|
VectorSet<InstanceReference> new_references;
|
|
new_references.reserve(references_.size());
|
|
for (const InstanceReference &reference : references_) {
|
|
switch (reference.type()) {
|
|
case InstanceReference::Type::None:
|
|
case InstanceReference::Type::GeometrySet: {
|
|
/* Those references can stay as their were. */
|
|
new_references.add_new(reference);
|
|
break;
|
|
}
|
|
case InstanceReference::Type::Object: {
|
|
/* Create a new reference that contains the geometry set of the object. We may want to
|
|
* treat e.g. lamps and similar object types separately here. */
|
|
const Object &object = reference.object();
|
|
GeometrySet object_geometry_set = object_get_evaluated_geometry_set(object);
|
|
if (object_geometry_set.has_instances()) {
|
|
InstancesComponent &component =
|
|
object_geometry_set.get_component_for_write<InstancesComponent>();
|
|
component.ensure_geometry_instances();
|
|
}
|
|
new_references.add_new(std::move(object_geometry_set));
|
|
break;
|
|
}
|
|
case InstanceReference::Type::Collection: {
|
|
/* Create a new reference that contains a geometry set that contains all objects from the
|
|
* collection as instances. */
|
|
GeometrySet collection_geometry_set;
|
|
InstancesComponent &component =
|
|
collection_geometry_set.get_component_for_write<InstancesComponent>();
|
|
Collection &collection = reference.collection();
|
|
FOREACH_COLLECTION_OBJECT_RECURSIVE_BEGIN (&collection, object) {
|
|
const int handle = component.add_reference(*object);
|
|
component.add_instance(handle, object->obmat);
|
|
float4x4 &transform = component.instance_transforms().last();
|
|
sub_v3_v3(transform.values[3], collection.instance_offset);
|
|
}
|
|
FOREACH_COLLECTION_OBJECT_RECURSIVE_END;
|
|
component.ensure_geometry_instances();
|
|
new_references.add_new(std::move(collection_geometry_set));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
references_ = std::move(new_references);
|
|
}
|