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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 "BKE_mesh.h"
#include "BKE_mesh_wrapper.h"
#include "BKE_modifier.h"
#include "BLI_math_matrix.h"
static bNodeSocketTemplate geo_node_object_info_in[] = {
{SOCK_OBJECT, N_("Object")},
{-1, ""},
};
static bNodeSocketTemplate geo_node_object_info_out[] = {
{SOCK_VECTOR, N_("Location")},
{SOCK_VECTOR, N_("Rotation")},
{SOCK_VECTOR, N_("Scale")},
{SOCK_GEOMETRY, N_("Geometry")},
{-1, ""},
};
namespace blender::nodes {
static void geo_node_object_info_exec(GeoNodeExecParams params)
{
const bNode &bnode = params.node();
NodeGeometryObjectInfo *node_storage = (NodeGeometryObjectInfo *)bnode.storage;
const bool transform_space_relative = (node_storage->transform_space ==
GEO_NODE_TRANSFORM_SPACE_RELATIVE);
bke::PersistentObjectHandle object_handle = params.extract_input<bke::PersistentObjectHandle>(
"Object");
Object *object = params.handle_map().lookup(object_handle);
float3 location = {0, 0, 0};
float3 rotation = {0, 0, 0};
float3 scale = {0, 0, 0};
GeometrySet geometry_set;
const Object *self_object = params.self_object();
if (object != nullptr) {
float transform[4][4];
mul_m4_m4m4(transform, self_object->imat, object->obmat);
float quaternion[4];
if (transform_space_relative) {
mat4_decompose(location, quaternion, scale, transform);
}
else {
mat4_decompose(location, quaternion, scale, object->obmat);
}
quat_to_eul(rotation, quaternion);
if (object != self_object) {
if (object->type == OB_MESH) {
Mesh *mesh = BKE_modifier_get_evaluated_mesh_from_evaluated_object(object, false);
if (mesh != nullptr) {
BKE_mesh_wrapper_ensure_mdata(mesh);
/* Make a copy because the life time of the other mesh might be shorter. */
Mesh *copied_mesh = BKE_mesh_copy_for_eval(mesh, false);
if (transform_space_relative) {
/* Transform into the local space of the object that is being modified. */
BKE_mesh_transform(copied_mesh, transform, true);
}
MeshComponent &mesh_component = geometry_set.get_component_for_write<MeshComponent>();
mesh_component.replace(copied_mesh);
mesh_component.copy_vertex_group_names_from_object(*object);
}
}
}
}
params.set_output("Location", location);
params.set_output("Rotation", rotation);
params.set_output("Scale", scale);
params.set_output("Geometry", geometry_set);
}
static void geo_node_object_info_node_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryObjectInfo *data = (NodeGeometryObjectInfo *)MEM_callocN(
sizeof(NodeGeometryObjectInfo), __func__);
data->transform_space = GEO_NODE_TRANSFORM_SPACE_ORIGINAL;
node->storage = data;
}
} // namespace blender::nodes
void register_node_type_geo_object_info()
{
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_OBJECT_INFO, "Object Info", NODE_CLASS_INPUT, 0);
node_type_socket_templates(&ntype, geo_node_object_info_in, geo_node_object_info_out);
node_type_init(&ntype, blender::nodes::geo_node_object_info_node_init);
node_type_storage(
&ntype, "NodeGeometryObjectInfo", node_free_standard_storage, node_copy_standard_storage);
ntype.geometry_node_execute = blender::nodes::geo_node_object_info_exec;
nodeRegisterType(&ntype);
}
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