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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.
*/
#pragma once
#include "BKE_geometry_set.hh"
namespace blender::geometry {
struct RealizeInstancesOptions {
/**
* The default is to generate new ids for every element (when there was any id attribute in the
* input). This avoids having a geometry that contains the same id many times.
* When this is `true` the ids on the original geometries are kept unchanged and ids on instances
* are ignored. Ids are zero initialized when the original geometry did not have an id.
*/
bool keep_original_ids = false;
/**
* When `true` the output geometry will contain all the generic attributes that existed on
* instances. Otherwise, instance attributes are ignored.
*/
bool realize_instance_attributes = true;
};
/**
* Join all instances into a single geometry component for each geometry type. For example, all
* mesh instances (including the already realized mesh) are joined into a single mesh. The output
* geometry set does not contain any instances. If the input did not contain any instances, it is
* returned directly.
*
* The `id` attribute has special handling. If there is an id attribute on any component, the
* output will contain an `id` attribute as well. The output id is generated by mixing/hashing ids
* of instances and of the instanced geometry data.
*/
GeometrySet realize_instances(GeometrySet geometry_set, const RealizeInstancesOptions &options);
GeometrySet realize_instances_legacy(GeometrySet geometry_set);
} // namespace blender::geometry
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