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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

Thu, Apr 18

Serj Maiorov (printerkiller) added a comment to T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache.

Have the same problem, here is a side by side basic test

Thu, Apr 18, 12:56 PM · Alembic, BF Blender

Wed, Apr 17

Serj Maiorov (printerkiller) added a comment to T63654: Alembic - Aplly scale doesn't work with the Mesh Sequence and hair.

Is there an alternative to that workflow? Because we use real world scales to be consistent with lighting and materials over live footages. How can we interchange hair between Alembics and still maintain real scales?

Wed, Apr 17, 9:33 AM · Alembic, BF Blender

Tue, Apr 16

Serj Maiorov (printerkiller) added a comment to T63654: Alembic - Aplly scale doesn't work with the Mesh Sequence and hair.

Tried to do that but it still breaks the hair

Tue, Apr 16, 3:47 PM · Alembic, BF Blender
Sybren A. Stüvel (sybren) added a comment to T63654: Alembic - Aplly scale doesn't work with the Mesh Sequence and hair.

Applying scale is not supported. This changes the mesh data, which is replaced with the data from Alembic. Try creating an Empty, set it as the parent of the imported Alembic object, and scale the Empty.

Tue, Apr 16, 3:19 PM · Alembic, BF Blender
Wybren van Keulen (wybren) added a comment to T53745: Blender writes .abc color information wrong.

Hi Atomic and Sybren,

Tue, Apr 16, 2:32 PM · Alembic, BF Blender
Sebastian Parborg (zeddb) assigned T63654: Alembic - Aplly scale doesn't work with the Mesh Sequence and hair to Sybren A. Stüvel (sybren).

Unsure if applying scale is supported for sequence caches. @Sybren A. Stüvel (sybren) any input on this?

Tue, Apr 16, 2:00 PM · Alembic, BF Blender
Sybren A. Stüvel (sybren) added a comment to T53745: Blender writes .abc color information wrong.

I tried the Tree.abc file in Houdini 17.0 and it does not work. When I unpack the data, I can see that a 4 float vector is written, but that is wrong, it should be only a 3 float vector.

Tue, Apr 16, 11:02 AM · Alembic, BF Blender
Serj Maiorov (printerkiller) renamed T63654: Alembic - Aplly scale doesn't work with the Mesh Sequence and hair from Alembic - Aplly scale doesn't work with the Mesh Sequence to Alembic - Aplly scale doesn't work with the Mesh Sequence and hair.
Tue, Apr 16, 10:40 AM · Alembic, BF Blender

Mon, Apr 15

Atomic (atomic) added a comment to T53745: Blender writes .abc color information wrong.

I tried the Tree.abc file in Houdini 17.0 and it does not work. When I unpack the data, I can see that a 4 float vector is written, but that is wrong, it should be only a 3 float vector. Even when I promote (or wrangle) the data into an attribute @Cd, that the viewport expects, all the data is zero (i.e. black).

Mon, Apr 15, 10:21 PM · Alembic, BF Blender
Libor Batek (lbatek) added a comment to T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache.

@Sybren A. Stüvel (sybren) ok, sorry not doing it before....should be done right now

Mon, Apr 15, 10:50 AM · Alembic, BF Blender
Libor Batek (lbatek) updated the task description for T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache.
Mon, Apr 15, 10:49 AM · Alembic, BF Blender
Sybren A. Stüvel (sybren) added a comment to T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache.

@Libor Batek (lbatek) please put the description of the issue in this task, instead of hiding it in a ZIP file. Hiding it like this makes it invisible to the search engine, and makes it harder for developers to access as well.

Mon, Apr 15, 10:25 AM · Alembic, BF Blender

Fri, Apr 12

Philipp Oeser (lichtwerk) assigned T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache to Sybren A. Stüvel (sybren).

Confirmed on first sight
(Looks like 2.79 has a similiar issue even)

Fri, Apr 12, 3:36 PM · Alembic, BF Blender
Philipp Oeser (lichtwerk) added a project to T63534: Child hair particles set to "Interpolated" causes jittering when groom on alembic cache: Alembic.
Fri, Apr 12, 3:28 PM · Alembic, BF Blender

Sun, Mar 31

Sebastian Parborg (zeddb) added a comment to T63141: Alembic Sequences Do Not Play Back When Scrubbing The Timeline, Crashes Often.

Just edit the task description of the other task if you want to add your findings.

Sun, Mar 31, 2:20 PM · Alembic, BF Blender
Sebastian Parborg (zeddb) merged task T63141: Alembic Sequences Do Not Play Back When Scrubbing The Timeline, Crashes Often into T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Sun, Mar 31, 2:19 PM · Alembic, BF Blender

Sat, Mar 30

Jared Herman (Aternias) added a project to T63141: Alembic Sequences Do Not Play Back When Scrubbing The Timeline, Crashes Often: Alembic.
Sat, Mar 30, 11:23 PM · Alembic, BF Blender

Thu, Mar 28

Vasil (FeralMan) added a comment to T60977: Alembic vertex color export does not work in maya.

Yeah, Bastien. In my case, I found the solution with FBX export.

Thu, Mar 28, 12:04 PM · Alembic, BF Blender
Bastien Montagne (mont29) added a comment to T60977: Alembic vertex color export does not work in maya.

Note that FBX should also be able to export vertex color data?

Thu, Mar 28, 11:41 AM · Alembic, BF Blender
Sebastian Parborg (zeddb) added a comment to T60977: Alembic vertex color export does not work in maya.

Not yet

Thu, Mar 28, 11:07 AM · Alembic, BF Blender

Wed, Mar 27

Philipp Oeser (lichtwerk) added a comment to T62980: Animated ABC Won't Collide With Fluid Simulation.

Havent actually checked it, and it feels like swapping mesh datablocks in a framechange handler is not the best solution, but would it help getting the evaluated object?

Wed, Mar 27, 10:10 PM · Physics, Alembic, BF Blender
Vasil (FeralMan) added a comment to T60977: Alembic vertex color export does not work in maya.

Hi guys. Just found this bug in Blender. And searching brings me here.
I tried to export vertex color from Blender to Maya. Alembic the only format I found to have "vertex color".
And it's doesn't work. Maya can't see the color.

Wed, Mar 27, 2:31 PM · Alembic, BF Blender
Atomic (atomic) added a comment to T62980: Animated ABC Won't Collide With Fluid Simulation.

So why can't I fetch the mesh data block, from the .abc animation, in a frame change?
Shouldn't the Mesh Sequence Cache modifier correctly present the current mesh data block, to the API, for the frame it is displaying?
Why does the frame change code fail?

Wed, Mar 27, 1:55 PM · Physics, Alembic, BF Blender
Philipp Oeser (lichtwerk) added projects to T62980: Animated ABC Won't Collide With Fluid Simulation: Alembic, Physics.
Wed, Mar 27, 11:23 AM · Physics, Alembic, BF Blender

Mar 21 2019

Sebastian Parborg (zeddb) triaged T60977: Alembic vertex color export does not work in maya as Normal priority.
Mar 21 2019, 12:35 PM · Alembic, BF Blender

Mar 20 2019

Sergey Sharybin (sergey) closed T56778: Alembic Override Frame does not update on playback. as Resolved by committing rB2f4bd632396c: Fix T56778: Alembic Override Frame does not update on playback.
Mar 20 2019, 4:49 PM · BF Blender, Dependency Graph, Alembic

Mar 19 2019

Christophe Leyder (shotalot) added a comment to T50725: Alembic export doesn't take 'Custom Properties', as alembic non-standard data..

Any news on this? This is a big one in terms of alembic for studios considering using it in thier pipeline, I will be more than willing to supply production example files in email, this will be for alembics exported from houdini specifically.

Mar 19 2019, 2:35 PM · Alembic, Import/Export, BF Blender
Sybren A. Stüvel (sybren) added a project to T60977: Alembic vertex color export does not work in maya: Alembic.
Mar 19 2019, 9:37 AM · Alembic, BF Blender
Jared Herman (Aternias) renamed T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work from Most Of The Time Importing Alembic Mesh Causes Blender To Hard Crash As Well As Playback Of Sequence. to Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences..
Mar 19 2019, 7:37 AM · BF Blender

Mar 18 2019

Jared Herman (Aternias) updated the task description for T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Mar 18 2019, 9:34 PM · BF Blender
Jared Herman (Aternias) updated the task description for T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Mar 18 2019, 9:34 PM · BF Blender
Jared Herman (Aternias) updated the task description for T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Mar 18 2019, 9:21 PM · BF Blender
Jared Herman (Aternias) updated the task description for T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Mar 18 2019, 9:21 PM · BF Blender
Jared Herman (Aternias) updated the task description for T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work.
Mar 18 2019, 8:04 PM · BF Blender
Jared Herman (Aternias) renamed T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work from 75% Of The Time Importing Alembic Mesh (Individually And In Sequence) Causes Blender To Hard Crash As Well As Playback Of Sequence. to Most Of The Time Importing Alembic Mesh Causes Blender To Hard Crash As Well As Playback Of Sequence..
Mar 18 2019, 7:46 PM · BF Blender
Jared Herman (Aternias) added a project to T62720: Importing Alembic Mesh Causes Blender To Crash As Well As Alembic Sequences/Playback of Alembic sequences does not work: Alembic.
Mar 18 2019, 7:45 PM · BF Blender

Mar 6 2019

Bastien Montagne (mont29) closed T51820: Alembic sequence Crash as Resolved.

@Thomas Volkmann (knekke) please do not re-open old reports, even if issue seems similar, it is quiet likely to be something different, so new report is *always* the way to go (you can easily link new one back to an older one if needed, of course). Plus, it makes things simpler to track down (a report that is fixed, then mark as not fixed, then fixed again… becomes confusing).

Mar 6 2019, 1:48 PM · Alembic, BF Blender
Thomas Volkmann (knekke) reopened T51820: Alembic sequence Crash as "Open".

I have problems again with alembic sequences in 2.8. The sample files further up are crashing too...

Mar 6 2019, 12:53 PM · Alembic, BF Blender

Mar 5 2019

Mel Massadian (melmass) added a watcher for Alembic: Mel Massadian (melmass).
Mar 5 2019, 5:36 PM

Feb 20 2019

Sybren A. Stüvel (sybren) added a comment to D2388: Cycles: initial work to support motion blur from Alembic caches..

So it's been a year since the last post in this thread. Still nothing? I really miss this feature.

Feb 20 2019, 9:38 AM · Alembic

Feb 15 2019

Maine (Maine) added a watcher for Alembic: Maine (Maine).
Feb 15 2019, 9:27 AM
Mike Zet (mikez) added a comment to D2388: Cycles: initial work to support motion blur from Alembic caches..

So it's been a year since the last post in this thread. Still nothing? I really miss this feature.

Feb 15 2019, 5:50 AM · Alembic

Feb 10 2019

Dawid Huczyński (tibicen) added a watcher for Alembic: Dawid Huczyński (tibicen).
Feb 10 2019, 1:05 AM

Feb 7 2019

Santeri Holm (Santerho) added a comment to T56792: Alembic doesn't export custom normals correctly.

This bug still seems to exist and is really getting in the way of our pipeline.
I did some digging and seems like blenders vertex normals are exported to point normals

Feb 7 2019, 5:10 PM · Import/Export, Alembic, BF Blender

Jan 29 2019

Irfan Celik (irfan) added a comment to T53745: Blender writes .abc color information wrong.

I created one here https://developer.blender.org/T60977

Jan 29 2019, 1:29 PM · Alembic, BF Blender
Brecht Van Lommel (brecht) added a comment to T53745: Blender writes .abc color information wrong.

It's best to create a new bug report, with all the required information and .blend / .abc file to reproduce the issue.

Jan 29 2019, 12:31 PM · Alembic, BF Blender

Jan 28 2019

Irfan Celik (irfan) added a comment to T53745: Blender writes .abc color information wrong.

Could someone test this again in Maya?
I dont seem to get any vertex color info into Maya here even though re importing the abc back into blender does work.
Tested it myself here using the daily builds of blender 2.8, official 2.79 and daily 2.79.

Jan 28 2019, 2:13 PM · Alembic, BF Blender

Jan 16 2019

Sybren A. Stüvel (sybren) closed T60503: Curves to Alembic problems as Resolved.
Jan 16 2019, 11:09 AM · Blender Studio, Alembic, BF Blender

Jan 15 2019

Sybren A. Stüvel (sybren) added a comment to T60503: Curves to Alembic problems.

The curve loses its Geometry settings. In the example file the curves have depth and a full Fill Mode to them but once imported they switch back to the default settings of newly created curves.
The curve type is switched to paths instead of bezier.

Jan 15 2019, 11:34 AM · Blender Studio, Alembic, BF Blender
Julien Kaspar (JulienKaspar) added a comment to T60503: Curves to Alembic problems.

I think the best solution for the studio right now would be to have the option to export curves as meshes like already mentioned here: T51311

Jan 15 2019, 11:23 AM · Blender Studio, Alembic, BF Blender