Sybren A. Stüvel
ee8aad79c1
This fixes the glitching hairs described in T56408, T63534, and possibly also T63534. The fix consists of returning the original mesh (i.e. as visible in edit mode) when constructing the ORCO mesh. This allows a static set of coordinates to be used when computing the child hair positions. The original mesh is only returned when it has the same topology (at least same number of vertices, loops, and polys. It's up the author of the Alembic file to ensure stable geometry when it's desired to be compatible with Blender's hair system. Reviewers: mont29, brecht Differential Revision: https://developer.blender.org/D5492
139 lines
3.9 KiB
C++
139 lines
3.9 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/** \file
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* \ingroup balembic
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*/
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#ifndef __ABC_ALEMBIC_H__
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#define __ABC_ALEMBIC_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct CacheReader;
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struct ListBase;
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struct Mesh;
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struct Object;
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struct Scene;
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struct bContext;
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typedef struct AbcArchiveHandle AbcArchiveHandle;
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enum {
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ABC_ARCHIVE_OGAWA = 0,
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ABC_ARCHIVE_HDF5 = 1,
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};
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int ABC_get_version(void);
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struct AlembicExportParams {
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double frame_start;
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double frame_end;
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unsigned int frame_samples_xform;
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unsigned int frame_samples_shape;
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double shutter_open;
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double shutter_close;
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bool selected_only;
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bool uvs;
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bool normals;
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bool vcolors;
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bool apply_subdiv;
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bool curves_as_mesh;
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bool flatten_hierarchy;
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bool visible_layers_only;
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bool renderable_only;
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bool face_sets;
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bool use_subdiv_schema;
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bool packuv;
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bool triangulate;
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bool export_hair;
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bool export_particles;
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unsigned int compression_type : 1;
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/* See MOD_TRIANGULATE_NGON_xxx and MOD_TRIANGULATE_QUAD_xxx
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* in DNA_modifier_types.h */
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int quad_method;
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int ngon_method;
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float global_scale;
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};
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/* The ABC_export and ABC_import functions both take a as_background_job
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* parameter, and return a boolean.
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*
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* When as_background_job=true, returns false immediately after scheduling
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* a background job.
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*
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* When as_background_job=false, performs the export synchronously, and returns
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* true when the export was ok, and false if there were any errors.
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*/
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bool ABC_export(struct Scene *scene,
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struct bContext *C,
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const char *filepath,
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const struct AlembicExportParams *params,
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bool as_background_job);
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bool ABC_import(struct bContext *C,
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const char *filepath,
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float scale,
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bool is_sequence,
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bool set_frame_range,
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int sequence_len,
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int offset,
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bool validate_meshes,
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bool as_background_job);
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AbcArchiveHandle *ABC_create_handle(const char *filename, struct ListBase *object_paths);
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void ABC_free_handle(AbcArchiveHandle *handle);
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void ABC_get_transform(struct CacheReader *reader, float r_mat[4][4], float time, float scale);
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/* Either modifies current_mesh in-place or constructs a new mesh. */
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struct Mesh *ABC_read_mesh(struct CacheReader *reader,
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struct Object *ob,
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struct Mesh *current_mesh,
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const float time,
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const char **err_str,
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int flags);
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bool ABC_mesh_topology_changed(struct CacheReader *reader,
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struct Object *ob,
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struct Mesh *existing_mesh,
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const float time,
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const char **err_str);
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void CacheReader_incref(struct CacheReader *reader);
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void CacheReader_free(struct CacheReader *reader);
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struct CacheReader *CacheReader_open_alembic_object(struct AbcArchiveHandle *handle,
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struct CacheReader *reader,
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struct Object *object,
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const char *object_path);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ABC_ALEMBIC_H__ */
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