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blender-archive/source/blender/alembic/ABC_alembic.h
Kévin Dietrich 753edafcb7 Alembic: store a pointer to the object reader in the cache modifiers and
constraints.

This avoids traversing the archive everytime object data is needed and
gives an overall consistent ~2x speedup here with files containing
between 136 and 500 Alembic objects. Also this somewhat nicely de-
duplicates code between data creation (upon import) and data streaming
(modifiers and constraints).

The only worying part is what happens when a CacheFile is deleted and/or
has its path changed. For now, we traverse the whole scene and for each
object using the CacheFile we free the pointer and NULL-ify it (see
BKE_cachefile_clean), but at some point this should be re-considered and
make use of the dependency graph.
2016-10-29 12:23:09 +02:00

120 lines
3.3 KiB
C++

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): Esteban Tovagliari, Cedric Paille, Kevin Dietrich
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __ABC_ALEMBIC_H__
#define __ABC_ALEMBIC_H__
#ifdef __cplusplus
extern "C" {
#endif
struct bContext;
struct CacheReader;
struct DerivedMesh;
struct ListBase;
struct Object;
struct Scene;
typedef struct AbcArchiveHandle AbcArchiveHandle;
enum {
ABC_ARCHIVE_OGAWA = 0,
ABC_ARCHIVE_HDF5 = 1,
};
int ABC_get_version(void);
struct AlembicExportParams {
double frame_start;
double frame_end;
double frame_step_xform;
double frame_step_shape;
double shutter_open;
double shutter_close;
/* bools */
unsigned int selected_only : 1;
unsigned int uvs : 1;
unsigned int normals : 1;
unsigned int vcolors : 1;
unsigned int apply_subdiv : 1;
unsigned int flatten_hierarchy : 1;
unsigned int visible_layers_only : 1;
unsigned int renderable_only : 1;
unsigned int face_sets : 1;
unsigned int use_subdiv_schema : 1;
unsigned int packuv : 1;
unsigned int triangulate : 1;
unsigned int compression_type : 1;
int quad_method;
int ngon_method;
float global_scale;
};
void ABC_export(
struct Scene *scene,
struct bContext *C,
const char *filepath,
const struct AlembicExportParams *params);
void ABC_import(struct bContext *C,
const char *filepath,
float scale,
bool is_sequence,
bool set_frame_range,
int sequence_len,
int offset,
bool validate_meshes);
AbcArchiveHandle *ABC_create_handle(const char *filename, struct ListBase *object_paths);
void ABC_free_handle(AbcArchiveHandle *handle);
void ABC_get_transform(struct CacheReader *reader,
float r_mat[4][4],
float time,
float scale);
struct DerivedMesh *ABC_read_mesh(struct CacheReader *reader,
struct Object *ob,
struct DerivedMesh *dm,
const float time,
const char **err_str,
int flags);
void CacheReader_free(struct CacheReader *reader);
struct CacheReader *CacheReader_open_alembic_object(struct AbcArchiveHandle *handle,
struct CacheReader *reader,
struct Object *object,
const char *object_path);
#ifdef __cplusplus
}
#endif
#endif /* __ABC_ALEMBIC_H__ */