xgen not rendering with Vray

[luis.alcala86]

I have been rendering this project for awhile and now all of a sudden Vray isn't rendering Xgen and I am getting a file error about it not being able to load an abc file.


This is my first time I get this error about an abc file which I never outputted in the folder path specified. Plugin manager is already checked with xgen vray settings and the project is set. Everything is showing in the view port and updating except the render. I am totally clueless on this matter. I deleted the collection out of the scene and created a new one but the error persists.

Tried creating a brand new scene with new geometry and a quick xgen expression but it still won't render. It renders with Arnold but wont render at all with Vray. Any help is greatly appreciated.

[shaio]

Hi,
I'll try to reproduce it on my machine and check if there is something wrong. Could you please share some more information like the Maya and V-Ray versions that you use?

[shaio]

They are probably not rendered because before the Render is started xGen needs to export the .abc file that you see in the error. To do this go to the xGen window and chose File > Export Patches for Batch Render and this will create the .abc file in question. Before this step make sure that the scene is saved and you've done File > Export Collections or Descriptions from the same window too.
Let me know if this helps or if you need more information about this.

[luis.alcala86]

Hey Ivan,

Current setup is as followed:

Maya 2018 with Vray 3.60.04

I did revert back to Vray 3.60.03 and everything rendered fine without having to do an alembic export of the patches. I will reinstall Vray 3.60.04 and do your suggestion and let you know if that works. I just dont get what was different from .03 to .04 Vray version that breaks the process.

[shaio]

That is interesting. I'll check it out and will get back to you with some more information. Thanks for the feedback.

[shaio]

Hi,
sorry for the delay. It seems that we broke this in 3.60.04 and now the step with Exporting the Patches for batch is a necessary one. We're working on fixing this. Sorry for the inconvenience.

[l1tay2]

I am having the same issue. I am not getting an error, but when I render...the xgen is missing.

Edit: I am not getting this error:
// Error: XGen: No collections were imported from .../Animals/Giraffe/scenes/

I am also using Maya 2018 with Vray 3.60.04

Any ideas on what to check?

[sharktacos]

Hi,
sorry for the delay. It seems that we broke this in 3.60.04 and now the step with Exporting the Patches for batch is a necessary one. We're working on fixing this. Sorry for the inconvenience.

#1 does this apply to interactive xgen, or just to the old procedural xgen?
#2 has this been fixed in Nightlies?

[shaio]

Hello,
1. No it doesn't apply to the interactive groom splines.
2. It is fixed in V-Ray Next only. I'll make a note to the devs and check if this is going to make it in the stable 3.60.05 version of V-Ray. I'll update the post as soon as I have that info.

[shaio]

Hi,
the issue is fixed in the latest stable V-Ray for Maya 3.60.05. Let me know if you have any issues.

[l1tay2]

Hi,
the issue is fixed in the latest stable V-Ray for Maya 3.60.05. Let me know if you have any issues.

Is this version available for download?

[yolov]

Yes, you should be able to find it under "V-Ray 3.0 for Maya -stable" on the nightlies server. If you don't have access, please contact our support team: https://www.chaosgroup.com/support/contact