Crash after 2 or 3 rerenders (possibly because of Ornatrix)...

[Njen]

I have scenes that crash after two or three rerenders (Using the 'Render Last' button). I'm pretty sure it's related to a character asset that has Ornatrix hair. It crashes during the parsing stage (Max 2019).

I am uploading the minidump file to the private uploader. The file is called:
1560672789_3dsmax-minidump.dmp

Thanks!

[rowmanns]

Hi,

Would you also be able to upload your scene?

Could you also tell me which version of Ornatrix and Corona you are using?

Thanks,

Rowan

[maru]

Can you also tell us:
-what Corona version is it?
-what Windows version?

(internal id=364116953)

[Njen]

Uploaded to Dropbox: 'cyanEyed_coronaBugOrnatrixCrash.zip'

Steps to reproduce:
1. Highlight the viewport showing the camera, 'render_cam'
2. Press the 'Render Last' button and wait for render to start rendering passes.
3. Wait for render to finish, or cancel the render once it has finished at least 5 passes.
4. Press the 'Render Last' button again.
5. Crash during parsing stage. You may need to render three times to cause the crash.

Crashes occur on Threadripper 2 builds, and a dual Xeon build.

OS: Windows 10 (Threadripper 2) \ Windows 7 Pro (dual Xeon)
Corona version: 4 (RC 3)
Ornatrix version: 6.1.6.19303

I've also attached a screenshot from my one of my Deadline submissions. As you can see in the 'Errors' column, there are plenty of errors, but the frames eventually complete, though seemingly at random.

[Njen]

Also, you can use this scene for the issue I mentioned in the following post about adaptability and noise in motion blurred hair:
https://forum.corona-renderer.com/index.php?topic=25036.msg150452#msg150452

Any frame where the camera is moving has this issue, for example frame 1042.

Thanks!

[Edit]: I just realised that the 'Collect Assets v2.09' script didn't catch the alembic file used for the hair, so I uploaded it to the Private Uploader '1561047469_es-020-cache-pirateHair-v005.abc'. It gets loaded on the following object and modifier:
geo_prt_hairHeadMain -> Ox Strand Animation

[maru]

Thanks for the updates. Everything is logged and we are investigating...

[maru]

From the initial investigation by Njen, it seems that disabling multithreaded parsing in the development rollout prevents the crash (https://coronarenderer.freshdesk.com/support/solutions/articles/12000021288).

[rowmanns]

Hi Njen,

We have carried on investigating this and have discovered that the crashes are related to the geo_prt_feather geometries.

We are now in contact with the Ornatrix guys in order to resolve this.

Thanks,

Rowan