Kévin Dietrich
61050f75b1
All in all, this patch adds an Alembic importer, an Alembic exporter,
and a new CacheFile data block which, for now, wraps around an Alembic
archive. This data block is made available through a new modifier ("Mesh
Sequence Cache") as well as a new constraint ("Transform Cache") to
somewhat properly support respectively geometric and transformation data
streaming from alembic caches.
A more in-depth documentation is to be found on the wiki, as well as a
guide to compile alembic: https://wiki.blender.org/index.php/
User:Kevindietrich/AlembicBasicIo.
Many thanks to everyone involved in this little project, and huge shout
out to "cgstrive" for the thorough testings with Maya, 3ds Max, Houdini
and Realflow as well as @fjuhec, @jensverwiebe and @jasperge for the
custom builds and compile fixes.
Reviewers: sergey, campbellbarton, mont29
Reviewed By: sergey, campbellbarton, mont29
Differential Revision: https://developer.blender.org/D2060
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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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* The Original Code is Copyright (C) 2016 Kévin Dietrich.
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* All rights reserved.
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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#ifndef __ABC_CUSTOMDATA_H__
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#define __ABC_CUSTOMDATA_H__
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#include <Alembic/Abc/All.h>
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struct CustomData;
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struct MLoop;
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struct MLoopUV;
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struct MPoly;
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struct MVert;
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using Alembic::Abc::ICompoundProperty;
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using Alembic::Abc::OCompoundProperty;
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struct UVSample {
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std::vector<Imath::V2f> uvs;
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std::vector<uint32_t> indices;
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};
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struct CDStreamConfig {
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MLoop *mloop;
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int totloop;
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MPoly *mpoly;
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int totpoly;
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MVert *mvert;
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int totvert;
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MLoopUV *mloopuv;
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CustomData *loopdata;
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bool pack_uvs;
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/* TODO(kevin): might need a better way to handle adding and/or updating
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* custom datas such that it updates the custom data holder and its pointers
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* properly. */
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void *user_data;
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void *(*add_customdata_cb)(void *user_data, const char *name, int data_type);
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CDStreamConfig()
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: mloop(NULL)
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, totloop(0)
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, mpoly(NULL)
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, totpoly(0)
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, totvert(0)
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, pack_uvs(false)
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, user_data(NULL)
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, add_customdata_cb(NULL)
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{}
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};
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/* Get the UVs for the main UV property on a OSchema.
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* Returns the name of the UV layer.
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*
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* For now the active layer is used, maybe needs a better way to choose this. */
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const char *get_uv_sample(UVSample &sample, const CDStreamConfig &config, CustomData *data);
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void write_custom_data(const OCompoundProperty &prop,
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const CDStreamConfig &config,
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CustomData *data,
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int data_type);
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void read_custom_data(const ICompoundProperty &prop,
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const CDStreamConfig &config,
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const Alembic::Abc::ISampleSelector &iss);
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#endif /* __ABC_CUSTOMDATA_H__ */
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