diff options
author | Kévin Dietrich <kevin.dietrich@mailoo.org> | 2016-08-06 07:20:37 +0300 |
---|---|---|
committer | Kévin Dietrich <kevin.dietrich@mailoo.org> | 2016-08-06 11:58:13 +0300 |
commit | 61050f75b13ef706d3a80b86137436d3fb0bfa93 (patch) | |
tree | a8044c720b35ae0b1dd8d265178e7a412a50e8bf /source/blender/modifiers/intern | |
parent | 4158737cb2d79898b9f1147eaa26eb486f4980a1 (diff) |
Basic Alembic support
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
Diffstat (limited to 'source/blender/modifiers/intern')
-rw-r--r-- | source/blender/modifiers/intern/MOD_meshsequencecache.c | 197 | ||||
-rw-r--r-- | source/blender/modifiers/intern/MOD_util.c | 1 |
2 files changed, 198 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_meshsequencecache.c b/source/blender/modifiers/intern/MOD_meshsequencecache.c new file mode 100644 index 00000000000..355ac9563dd --- /dev/null +++ b/source/blender/modifiers/intern/MOD_meshsequencecache.c @@ -0,0 +1,197 @@ +/* + * ***** 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): Campbell Barton + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/modifiers/intern/MOD_meshsequencecache.c + * \ingroup modifiers + */ + +#include "DNA_cachefile_types.h" +#include "DNA_modifier_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" + +#include "BKE_cachefile.h" +#include "BKE_DerivedMesh.h" +#include "BKE_global.h" +#include "BKE_library.h" +#include "BKE_library_query.h" +#include "BKE_scene.h" + +#include "depsgraph_private.h" +#include "DEG_depsgraph_build.h" + +#include "MOD_modifiertypes.h" + +#ifdef WITH_ALEMBIC +# include "ABC_alembic.h" +#endif + +static void initData(ModifierData *md) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *)md; + + mcmd->cache_file = NULL; + mcmd->object_path[0] = '\0'; + mcmd->read_flag = MOD_MESHSEQ_READ_ALL; +} + +static void copyData(ModifierData *md, ModifierData *target) +{ +#if 0 + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *)md; +#endif + MeshSeqCacheModifierData *tmcmd = (MeshSeqCacheModifierData *)target; + + modifier_copyData_generic(md, target); + + if (tmcmd->cache_file) { + id_us_plus(&tmcmd->cache_file->id); + } +} + +static void freeData(ModifierData *md) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + if (mcmd->cache_file) { + id_us_min(&mcmd->cache_file->id); + } +} + +static bool isDisabled(ModifierData *md, int UNUSED(useRenderParams)) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + /* leave it up to the modifier to check the file is valid on calculation */ + return (mcmd->cache_file == NULL) || (mcmd->object_path[0] == '\0'); +} + +static DerivedMesh *applyModifier(ModifierData *md, Object *ob, + DerivedMesh *dm, + ModifierApplyFlag flag) +{ +#ifdef WITH_ALEMBIC + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + Scene *scene = md->scene; + const float frame = BKE_scene_frame_get(scene); + const float time = BKE_cachefile_time_offset(mcmd->cache_file, frame, FPS); + + const char *err_str = NULL; + + CacheFile *cache_file = mcmd->cache_file; + + BKE_cachefile_ensure_handle(G.main, cache_file); + + DerivedMesh *result = ABC_read_mesh(cache_file->handle, + ob, + dm, + mcmd->object_path, + time, + &err_str, + mcmd->read_flag); + + if (err_str) { + modifier_setError(md, "%s", err_str); + } + + return result ? result : dm; + UNUSED_VARS(flag); +#else + return dm; + UNUSED_VARS(md, ob, flag); +#endif +} + +static bool dependsOnTime(ModifierData *md) +{ + UNUSED_VARS(md); + return true; +} + +static void foreachIDLink(ModifierData *md, Object *ob, + IDWalkFunc walk, void *userData) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + walk(userData, ob, (ID **)&mcmd->cache_file, IDWALK_USER); +} + + +static void updateDepgraph(ModifierData *md, DagForest *forest, + struct Main *bmain, + struct Scene *scene, + Object *ob, DagNode *obNode) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + if (mcmd->cache_file != NULL) { + DagNode *curNode = dag_get_node(forest, mcmd->cache_file); + + dag_add_relation(forest, curNode, obNode, + DAG_RL_DATA_DATA | DAG_RL_OB_DATA, "Cache File Modifier"); + } + + UNUSED_VARS(bmain, scene, ob); +} + +static void updateDepsgraph(ModifierData *md, + struct Main *bmain, + struct Scene *scene, + Object *ob, + struct DepsNodeHandle *node) +{ + MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *) md; + + if (mcmd->cache_file != NULL) { + DEG_add_object_cache_relation(node, mcmd->cache_file, DEG_OB_COMP_CACHE, "Mesh Cache File"); + } + + UNUSED_VARS(bmain, scene, ob); +} + +ModifierTypeInfo modifierType_MeshSequenceCache = { + /* name */ "Mesh Sequence Cache", + /* structName */ "MeshSeqCacheModifierData", + /* structSize */ sizeof(MeshSeqCacheModifierData), + /* type */ eModifierTypeType_Constructive, + /* flags */ eModifierTypeFlag_AcceptsMesh | + eModifierTypeFlag_AcceptsCVs, + /* copyData */ copyData, + /* deformVerts */ NULL, + /* deformMatrices */ NULL, + /* deformVertsEM */ NULL, + /* deformMatricesEM */ NULL, + /* applyModifier */ applyModifier, + /* applyModifierEM */ NULL, + /* initData */ initData, + /* requiredDataMask */ NULL, + /* freeData */ freeData, + /* isDisabled */ isDisabled, + /* updateDepgraph */ updateDepgraph, + /* updateDepsgraph */ updateDepsgraph, + /* dependsOnTime */ dependsOnTime, + /* dependsOnNormals */ NULL, + /* foreachObjectLink */ NULL, + /* foreachIDLink */ foreachIDLink, + /* foreachTexLink */ NULL, +}; diff --git a/source/blender/modifiers/intern/MOD_util.c b/source/blender/modifiers/intern/MOD_util.c index f9291fb077f..93414562ccf 100644 --- a/source/blender/modifiers/intern/MOD_util.c +++ b/source/blender/modifiers/intern/MOD_util.c @@ -286,5 +286,6 @@ void modifier_type_init(ModifierTypeInfo *types[]) INIT_TYPE(DataTransfer); INIT_TYPE(NormalEdit); INIT_TYPE(CorrectiveSmooth); + INIT_TYPE(MeshSequenceCache); #undef INIT_TYPE } |