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/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "node_geometry_util.hh"
#include "BLI_math_matrix.h"
#include "DNA_collection_types.h"
static bNodeSocketTemplate geo_node_collection_info_in[] = {
{SOCK_COLLECTION, N_("Collection")},
{-1, ""},
};
static bNodeSocketTemplate geo_node_collection_info_out[] = {
{SOCK_GEOMETRY, N_("Geometry")},
{-1, ""},
};
namespace blender::nodes {
static void geo_node_collection_info_exec(GeoNodeExecParams params)
{
bke::PersistentCollectionHandle collection_handle =
params.extract_input<bke::PersistentCollectionHandle>("Collection");
Collection *collection = params.handle_map().lookup(collection_handle);
GeometrySet geometry_set_out;
if (collection == nullptr) {
params.set_output("Geometry", geometry_set_out);
return;
}
const bNode &bnode = params.node();
NodeGeometryCollectionInfo *node_storage = (NodeGeometryCollectionInfo *)bnode.storage;
const bool transform_space_relative = (node_storage->transform_space ==
GEO_NODE_TRANSFORM_SPACE_RELATIVE);
InstancedData instance;
instance.type = INSTANCE_DATA_TYPE_COLLECTION;
instance.data.collection = collection;
InstancesComponent &instances = geometry_set_out.get_component_for_write<InstancesComponent>();
float transform_mat[4][4];
unit_m4(transform_mat);
const Object *self_object = params.self_object();
if (transform_space_relative) {
copy_v3_v3(transform_mat[3], collection->instance_offset);
mul_m4_m4_pre(transform_mat, self_object->imat);
float3 self_loc;
copy_v3_v3(self_loc, self_object->obmat[3]);
}
instances.add_instance(instance, transform_mat, -1);
params.set_output("Geometry", geometry_set_out);
}
static void geo_node_collection_info_node_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryCollectionInfo *data = (NodeGeometryCollectionInfo *)MEM_callocN(
sizeof(NodeGeometryCollectionInfo), __func__);
data->transform_space = GEO_NODE_TRANSFORM_SPACE_ORIGINAL;
node->storage = data;
}
} // namespace blender::nodes
void register_node_type_geo_collection_info()
{
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_COLLECTION_INFO, "Collection Info", NODE_CLASS_INPUT, 0);
node_type_socket_templates(&ntype, geo_node_collection_info_in, geo_node_collection_info_out);
node_type_init(&ntype, blender::nodes::geo_node_collection_info_node_init);
node_type_storage(&ntype,
"NodeGeometryCollectionInfo",
node_free_standard_storage,
node_copy_standard_storage);
ntype.geometry_node_execute = blender::nodes::geo_node_collection_info_exec;
nodeRegisterType(&ntype);
}
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