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blender-archive/source/blender/blenkernel/BKE_geometry_set.h
Jacques Lucke 4599cea15d Geometry Nodes: refactor instances component
The main goal of this refactor is to not store Object/Collection
pointers for every individual instance. Instead instances now
store a handle for the referenced data. The actual Object/Collection
pointers are stored in a new `InstanceReference` class.

This refactor also allows for some better optimizations further down
the line, because one does not have to search through all instances
anymore to find what data is instanced.

Furthermore, this refactor makes it easier to support instancing
`GeometrySet` or any other data that has to be owned by the
`InstancesComponent`.

Differential Revision: https://developer.blender.org/D11125
2021-05-04 10:16:24 +02:00

49 lines
1.4 KiB
C++

/*
* 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
/** \file
* \ingroup bke
*/
#ifdef __cplusplus
extern "C" {
#endif
struct Collection;
struct GeometrySet;
struct Object;
/* Each geometry component has a specific type. The type determines what kind of data the component
* stores. Functions modifying a geometry will usually just modify a subset of the component types.
*/
typedef enum GeometryComponentType {
GEO_COMPONENT_TYPE_MESH = 0,
GEO_COMPONENT_TYPE_POINT_CLOUD = 1,
GEO_COMPONENT_TYPE_INSTANCES = 2,
GEO_COMPONENT_TYPE_VOLUME = 3,
GEO_COMPONENT_TYPE_CURVE = 4,
} GeometryComponentType;
void BKE_geometry_set_free(struct GeometrySet *geometry_set);
bool BKE_geometry_set_has_instances(const struct GeometrySet *geometry_set);
#ifdef __cplusplus
}
#endif