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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 "BLI_math_matrix.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_object_info_cc {
static void node_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Object>(N_("Object")).hide_label();
b.add_input<decl::Bool>(N_("As Instance"))
.description(N_("Output the entire object as single instance. "
"This allows instancing non-geometry object types"));
b.add_output<decl::Vector>(N_("Location"));
b.add_output<decl::Vector>(N_("Rotation"));
b.add_output<decl::Vector>(N_("Scale"));
b.add_output<decl::Geometry>(N_("Geometry"));
}
static void node_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
{
uiItemR(layout, ptr, "transform_space", UI_ITEM_R_EXPAND, nullptr, ICON_NONE);
}
static void node_geo_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);
auto default_transform = [&]() {
params.set_output("Location", float3(0));
params.set_output("Rotation", float3(0));
params.set_output("Scale", float3(0));
};
auto default_geometry = [&]() { params.set_output("Geometry", GeometrySet()); };
Object *object = params.get_input<Object *>("Object");
const Object *self_object = params.self_object();
if (object == nullptr) {
default_transform();
default_geometry();
return;
}
const float4x4 &object_matrix = object->obmat;
const float4x4 transform = float4x4(self_object->imat) * object_matrix;
if (transform_space_relative) {
params.set_output("Location", transform.translation());
params.set_output("Rotation", transform.to_euler());
params.set_output("Scale", transform.scale());
}
else {
params.set_output("Location", object_matrix.translation());
params.set_output("Rotation", object_matrix.to_euler());
params.set_output("Scale", object_matrix.scale());
}
if (params.output_is_required("Geometry")) {
if (object == self_object) {
params.error_message_add(NodeWarningType::Error,
TIP_("Geometry cannot be retrieved from the modifier object"));
default_geometry();
return;
}
GeometrySet geometry_set;
if (params.get_input<bool>("As Instance")) {
InstancesComponent &instances = geometry_set.get_component_for_write<InstancesComponent>();
const int handle = instances.add_reference(*object);
if (transform_space_relative) {
instances.add_instance(handle, transform);
}
else {
instances.add_instance(handle, float4x4::identity());
}
}
else {
geometry_set = bke::object_get_evaluated_geometry_set(*object);
if (transform_space_relative) {
transform_geometry_set(geometry_set, transform, *params.depsgraph());
}
}
params.set_output("Geometry", geometry_set);
}
}
static void node_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::node_geo_object_info_cc
void register_node_type_geo_object_info()
{
namespace file_ns = blender::nodes::node_geo_object_info_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_OBJECT_INFO, "Object Info", NODE_CLASS_INPUT, 0);
node_type_init(&ntype, file_ns::node_node_init);
node_type_storage(
&ntype, "NodeGeometryObjectInfo", node_free_standard_storage, node_copy_standard_storage);
ntype.geometry_node_execute = file_ns::node_geo_exec;
ntype.draw_buttons = file_ns::node_layout;
ntype.declare = file_ns::node_declare;
nodeRegisterType(&ntype);
}
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