FBX Game Export fail on long scene

[Anonymous]

Hi there, I've got a long scene (about 15,000 frames) with a single humanIK character and am trying to export it to FBX via the Game Exporter. When I export the scene, I can see the playhead move across the timeline (bake) and then must wait several minutes for the next operation (whatever that is). This operation always fails. I can watch my computer's memory (32gb) fill up, with one core in use. As soon as the memory reaches max, the FBX exporter reports it has failed.

I need to be able to export my animation. This is 120fps motion capture footage, so 15,000 frames is only about 2 minutes, which doesn't seem like an unreasonable duration to export.

I could probably get it to work by dropping the framerate (I think the issue is too many frames) but would like to hear about why there's a limit at all here? Would more RAM solve the problem? Can autodesk patch a fix?

Thanks,

Ryan

[mspeer]

Hi!

"Would more RAM solve the problem?"

You can test this on your own.

First export only 150 frames, then 500, then 1500, then 5000 and watch RAM usage.

[Anonymous]

Forget that I mentioned RAM.

How can I export longer scenes without buying more RAM? 32gb is adequate for some pretty major operations. This is just an animation bake and export.

[mspeer]

Hi!

Have you tested what i suggested?

1. 15000 frames is a lot.

2. I tested an export of 15000 frames for 100 animated objects and the additional RAM usage was about 500 MB only.

[jordan.giboney]

Hi @Anonymous 

Hope you had a good weekend! I wanted to check in and see if you had a chance to try out @mspeer's suggestions? Any success?

If you have found a solution we would also love to hear about it! Marking the solutions in these threads helps others find their answers faster. 

Thanks again for being a part of our community!

[Anonymous]

The issue is that the Game Exporter can't export scenes over a certain length. It works fine with shorter lengths; no experimentation is required to prove that.

[jordan.giboney]

Hi @Anonymous 

Thank you for your reply! It would be great if we could narrow in on the cause of this, as it might be a memory leak. @mspeer was able to export 15000 frames successfully, so maybe it pertains to what is in the scene specifically. Are you able to get this failure from a new scene? Or is the error just tied to this project?

If it is scene-specific, can you share the scene or describe how we can replicate it for further testing?

Thanks again for being a part of our community!

[mspeer]

Hi!

The question was to check what's the problem in your scene and how the length does effect the export.

As you did not provide a scene-file i can't check this myself here and the issue could be scene-specific.

"The issue is that the Game Exporter can't export scenes over a certain length"

- That's not true in general.

As stated before in my test i had no problem exporting an animation with 15000 frames, also 30000 frames works, so the length is not the problem.

(Tested with Maya 2019.1)

[jordan.giboney]

Hi @Anonymous 

Just wanted to check in again and see how things were going 🙂 Any new developments with this issue? Anything we can help with or clarify from our previous posts?

as stated, it would be great if we could get a scene file to test with locally. if we can replicate the problem, it may be limited to what is in your scene specifically.

Thanks again for being a part of our community! we look forward to hearing from you.

[Anonymous]

Hey, sorry for the delay. I have been busy with other work - putting this issue on the back burner.

How can I share a Maya file with you to look at? I can't post it's publicly online, but I don't mind sending it directly to an Autodesk employee.

Thank you again,

Ryan

[jordan.giboney]

Hi @Anonymous 

No worries 🙂 Completely understand. If you want to upload it to a drive (dropbox, google drive, etc) and then send me the download link in a private message (hover over my name in this post and click "send message") that would be the fastest way!

Thanks again!