AlembicProject
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Description

Alembic export & import support in Blender.

Join the discussion about Blender's Alembic support at T51195

More background information is collected on the wiki.

Recent Activity

Yesterday

Philipp Oeser (lichtwerk) closed T57824: Alembic Sequence Crash as Resolved.

OKi, closing then

Thu, Nov 15, 9:14 AM · Alembic, BF Blender: 2.8
Christophe Leyder (shotalot) added a comment to T57824: Alembic Sequence Crash.

You can close this, I contacted SideFX, its a bug in the Houdini exporter and not Blender. Apologies for any time wasted

Thu, Nov 15, 7:21 AM · Alembic, BF Blender: 2.8

Wed, Nov 14

Philipp Oeser (lichtwerk) assigned T57824: Alembic Sequence Crash to Sybren A. Stüvel (sybren).

Hm, seems I cant reproduce (a crash).
[Same for 2.79 master and 2.79b btw.]

Wed, Nov 14, 2:59 PM · Alembic, BF Blender: 2.8
Philipp Oeser (lichtwerk) assigned T57377: Alembic animated content import to Sybren A. Stüvel (sybren).

@Sybren A. Stüvel (sybren) : mind having a look?

Wed, Nov 14, 2:54 PM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) raised the priority of T57824: Alembic Sequence Crash from Incomplete to Needs Triage.
Wed, Nov 14, 12:50 PM · Alembic, BF Blender: 2.8
Christophe Leyder (shotalot) added a comment to T57824: Alembic Sequence Crash.

I have attached a simplified .abc that is still able to reproduce the crash.

Wed, Nov 14, 11:04 AM · Alembic, BF Blender: 2.8
Philipp Oeser (lichtwerk) triaged T57824: Alembic Sequence Crash as Incomplete priority.

Please try to reproduce with something you can share publicly.
(there might be multiple people involved in such a report and exchanging assets between all those persons via mail is just not practical).

Wed, Nov 14, 10:37 AM · Alembic, BF Blender: 2.8
Christophe Leyder (shotalot) created T57824: Alembic Sequence Crash.
Wed, Nov 14, 10:28 AM · Alembic, BF Blender: 2.8

Mon, Oct 29

Philipp Oeser (lichtwerk) raised the priority of T57377: Alembic animated content import from Incomplete to Confirmed.

We are seeing a couple of issues here (possibly we'll be splitting these in distinct reports if neccessary):

Mon, Oct 29, 1:41 PM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) added a revision to T57377: Alembic animated content import: D3847: Fix crash importing alembic with mcol indices out of bounds.
Mon, Oct 29, 1:38 PM · Alembic, BF Blender: 2.8, BF Blender
danny austin (dannysetvisions) added a comment to T57377: Alembic animated content import.

Attached is a scene from 3ds max with no animation exported as Alembic. Blender 2.8 crashes when I import this.

Mon, Oct 29, 11:21 AM · Alembic, BF Blender: 2.8, BF Blender

Fri, Oct 26

danny austin (dannysetvisions) added a comment to T57377: Alembic animated content import.


file uploaded

Fri, Oct 26, 3:09 PM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) added a comment to T57377: Alembic animated content import.

we need the updated .abc as well...

Fri, Oct 26, 11:43 AM · Alembic, BF Blender: 2.8, BF Blender
danny austin (dannysetvisions) added a comment to T57377: Alembic animated content import.

Hi,
I have done a lower resolution test with the same track animation for the camera.
Interestingly, the camera is not animated in the ABC file.. That being said, it no longer crashed. Files attached

Fri, Oct 26, 11:06 AM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) added a comment to T54050: Camera focal length animation not importing.

@Jesse (FreakTheMighty) : cant reproduce.
in 2.79, the provided FBX wont import Focal Length [but that is expected since rBAb890f0d7e8a6 isnt included]
in 2.79b (or onwards), the provided FBX will import Focal Length [bunch of keyframes, but all very similar -- around 8.1/8.2mm]

Fri, Oct 26, 9:49 AM · Addons, Alembic, Import/Export, BF Blender
Philipp Oeser (lichtwerk) added projects to T57078: Blender crashes while playing Alembic animation: Alembic, BF Blender.

crashes in 2.79 as well

Fri, Oct 26, 9:36 AM · BF Blender, Alembic, BF Blender: 2.8

Thu, Oct 25

Philipp Oeser (lichtwerk) added a comment to T57377: Alembic animated content import.

There seems to be a curve in the .abc as well (Circle.001)?

Thu, Oct 25, 9:55 PM · Alembic, BF Blender: 2.8, BF Blender
danny austin (dannysetvisions) added a comment to T57377: Alembic animated content import.

let me know if you have any issues downloading

Thu, Oct 25, 3:49 PM · Alembic, BF Blender: 2.8, BF Blender
danny austin (dannysetvisions) added a comment to T57377: Alembic animated content import.

here it is
https://setvisions-my.sharepoint.com/:u:/g/personal/danny_austin_setvisions_co_uk/EbTro74J7d5PgJhy4b5VdzkB6bqx-KMbk5NE7ymu4bubSg?e=3zcjfY

Thu, Oct 25, 3:49 PM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) triaged T57377: Alembic animated content import as Incomplete priority.

Cannot reproduce (when exporting from blender itself)

Thu, Oct 25, 9:27 AM · Alembic, BF Blender: 2.8, BF Blender
Philipp Oeser (lichtwerk) added projects to T57377: Alembic animated content import: BF Blender: 2.8, Alembic.
Thu, Oct 25, 9:22 AM · Alembic, BF Blender: 2.8, BF Blender

Sep 25 2018

Jesse (FreakTheMighty) added a comment to T54050: Camera focal length animation not importing.

Not sure why, but focal length keying worked for me in Blender Version 2.79 (2.79 2017-09-11, Blender Foundation), but does not work in Version 2.79b (2.79b 2018-03-22, Blender Foundation).

Sep 25 2018, 8:07 PM · Addons, Alembic, Import/Export, BF Blender

Sep 19 2018

Brecht Van Lommel (brecht) closed T53745: Blender writes .abc color information wrong as Resolved by committing rB104fb1fb76b1: Fix T53745: Alembic exported with vertex colors not readable by other software..
Sep 19 2018, 8:17 PM · Alembic, BF Blender
Brecht Van Lommel (brecht) closed D3704: Fix for T53745 wrong writing of Alembic vertex colors.
Sep 19 2018, 8:17 PM · Alembic
Brecht Van Lommel (brecht) accepted D3704: Fix for T53745 wrong writing of Alembic vertex colors.

Confirmed the vertex can be read correctly by Blender and two other softwares, and Alembic regression tests are passing.

Sep 19 2018, 8:15 PM · Alembic
Bastien Montagne (mont29) assigned T56778: Alembic Override Frame does not update on playback. to Sergey Sharybin (sergey).

Confirmed. @Sergey Sharybin (sergey), am going to summon you here, since I believe there may be something wrong in DEG - animation is in the CacheFile datablock, hence not in Object one (as any other modifier would be). And it is never evaluated afaict, even though dependency looks correct?

Sep 19 2018, 11:32 AM · Dependency Graph, BF Blender: 2.8, Alembic
Sybren A. Stüvel (sybren) added a comment to D3704: Fix for T53745 wrong writing of Alembic vertex colors.

Thanks dude! I hope I have time to test & commit this soon :)

Sep 19 2018, 10:48 AM · Alembic

Sep 18 2018

Wybren van Keulen (wybren) added a comment to T53745: Blender writes .abc color information wrong.

I went ahead and took the plunge into the Blender source and sure enough I fixed it! I submitted a patch at https://developer.blender.org/D3704 along with some more info on indexed writing.
I attached an Alembic file that contains a tree model with several vertex color layers. I tested it extensively in Houdini. Please test it and post back your success or failure. I hope it fixes this bug for at least Houdini and Maya.

Sep 18 2018, 3:27 PM · Alembic, BF Blender
Wybren van Keulen (wybren) created D3704: Fix for T53745 wrong writing of Alembic vertex colors.
Sep 18 2018, 3:18 PM · Alembic

Sep 14 2018

Bastien Montagne (mont29) assigned T56792: Alembic doesn't export custom normals correctly to Sybren A. Stüvel (sybren).

@Sybren A. Stüvel (sybren) that one is for you I think?

Sep 14 2018, 9:31 AM · Import/Export, Alembic, BF Blender

Sep 13 2018

Rubén (Rub) created T56792: Alembic doesn't export custom normals correctly.
Sep 13 2018, 4:00 PM · Import/Export, Alembic, BF Blender

Sep 12 2018

Jeff (Jeffm) updated the task description for T56778: Alembic Override Frame does not update on playback..
Sep 12 2018, 3:08 PM · Dependency Graph, BF Blender: 2.8, Alembic
Bastien Montagne (mont29) triaged T56778: Alembic Override Frame does not update on playback. as Incomplete priority.

Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue (only ONE issue per report!), precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.

Sep 12 2018, 3:06 PM · Dependency Graph, BF Blender: 2.8, Alembic
Jeff (Jeffm) created T56778: Alembic Override Frame does not update on playback..
Sep 12 2018, 1:17 PM · Dependency Graph, BF Blender: 2.8, Alembic

Sep 3 2018

mario (ziomario) added a comment to T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..

ok. you are the coder.

Sep 3 2018, 1:31 PM · Import/Export, Animation, Alembic, BF Blender
Bastien Montagne (mont29) closed T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. as Invalid.

That’s the last time I say it: THIS BUGTRACKER IS NOT A USER SUPPORT SERVICE!

Sep 3 2018, 11:13 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) reopened T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. as "Open".
Sep 3 2018, 9:51 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) added a comment to T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..

I think that it not necessary to look into the code as first thing to check. Maybe I used wrong configuration on the settings of the FBX panel,or it's necessary to use a "special" combination of settings,that I don't know. The best solution I think could be to make some attempts by the cross users,users who uses/know blender and nuke. I think that it worth trying before to close this post. If It was not strictly a bug,it was very close to be a bug,because each combination of setting should produce a different kind of effect,but since it could work only in some circumstances,it could be a bug.

Sep 3 2018, 9:49 AM · Import/Export, Animation, Alembic, BF Blender
Bastien Montagne (mont29) closed T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. as Invalid.

You’ll have to give proof that issue is from Blender side, not from Nuke side first… afaik meshes are pretty reliable in our FBX io addon. Not our job to investigate that kind of issue, especially not with a closed-source software we don’t have access to.

Sep 3 2018, 9:05 AM · Import/Export, Animation, Alembic, BF Blender

Sep 2 2018

mario (ziomario) reopened T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. as "Open".
Sep 2 2018, 5:13 PM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) added a comment to T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..

ok for the armature,but not good for the mesh. Nuke should import correctly the FBX file format.both in 6.1 ASCII and in 7.4 binary format. If it does not do it correctly,it's a bug of blender. So,I suggest to re open this bug. And anyway,the question deserves to be deepened,not closed on two feets.

Sep 2 2018, 5:11 PM · Import/Export, Animation, Alembic, BF Blender
Bastien Montagne (mont29) closed T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. as Archived.

Thanks for the report, but this sounds more like user support than bug to me - we don’t even know whether Nuke supports rigging at all, even less if it can import it correctly from FBX…

Sep 2 2018, 4:32 PM · Import/Export, Animation, Alembic, BF Blender

Aug 29 2018

mario (ziomario) renamed T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. from mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NJKE 11 does not work well. to mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 12:29 PM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) renamed T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well. from mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and in Alembic and imported in NJKE 11 does not work well. to mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NJKE 11 does not work well..
Aug 29 2018, 12:29 PM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) updated the task description for T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:52 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) updated the task description for T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:51 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) updated the task description for T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:50 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) updated the task description for T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:35 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) updated the task description for T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:30 AM · Import/Export, Animation, Alembic, BF Blender
mario (ziomario) created T56597: mesh + armature exported in FBX format (7.4 binary or 6.1 ASCII) and imported in NUKE 11 does not work well..
Aug 29 2018, 1:29 AM · Import/Export, Animation, Alembic, BF Blender