xGen support

[leufen]

Maybe it's your user name?

MAYA-28299 / MAYA-26243 "XGen cannot be loaded under Windows user name with upper ASCII characters"

[ivaylo.ivanov]

Thanks, this is probably it.

[ivaylo.ivanov]

The next nightly build of VRay 3.0 will include a basic support for xgen (Window and Linux only). Like you know, xgen can either output the geometry to a file, or generate/render it runtime. Currently only export to vrscene is supported. The idea is that post translate python script can be used to include this vrscene after the normal export.

From the 4 primitive types, 2 should work - spline and archive. To export the vrscene go to the Preview/Output and choose "VRScene" for "Operation". You can leave the "Output File" empty, the exporter will use a temporary file. If "Auto export before rendering" is on, the vrscene will be reexported every time you hit render, otherwise the last one will be used.

The vrscene file doesn't include the materials and the import is not simple. This why a new python function was implemented which will take care to glue everyting. You should write only this 2 lines in the Post translate Python script

from vray.xgen import *
importXGenVRScene()

Motion blur for the hair is not supported yet and of course, everything is still very experimental.

[ronald_a]

that is, if someone would be in the closed vray3 for maya beta - or did i miss something?

[ivaylo.ivanov]

Yep, the beta will soon become open... hopefully.

[vlado]

that is, if someone would be in the closed vray3 for maya beta - or did i miss something?

That is correct, yes. Unfortunately it's too much work to back-port this for V-Ray 2.x. But, on the bright side, the V-Ray 3.0 for Maya beta is just around the corner. You can also email us to vraymaya@chaosgroup.com and request access to the private beta.

Best regards,
Vlado

[ronald_a]

Cool, I might actually do that as i have a little bit of time.

Thanks,

Ronny

[Phantom-Studio]

Hi everybody,

With the release of VRay 3.0 Beta for Maya do you know if it fully support XGen ?
I just can't wait to try this!

Regards.

[ivaylo.ivanov]

XGen is too new to promote "full support". 3.0 beta can render hair and archives using temporary vrscene. RT is supported, but changes will not refresh. We will have better support in Maya 2015, which hopefully will resolve some issues with XGen itself.

[Phantom-Studio]

That's sounds great!

Thanks for the feedback Ivanov!

[Pixelpaddock]

I'm also very excited about the xgen workflow. I'm also hoping some of the kinks will be ironed out with the release of maya 2015.
Any chance the upcoming release of vray 3.0 for maya will support xgen?

[vlado]

Any chance the upcoming release of vray 3.0 for maya will support xgen?

Yes, it does.

Best regards,
Vlado

[fasterG]

XGen is too new to promote "full support". 3.0 beta can render hair and archives using temporary vrscene. RT is supported, but changes will not refresh. We will have better support in Maya 2015, which hopefully will resolve some issues with XGen itself.

Hi! I'm using Maya 2015 and Vray 3.0 Beta, and I'm trying to populate a plane with trees using Xgen. How do you mean using temporary vrscene? How do I export the Vray tree as a vrscene that can work as an archive in Xgen? Thanx!

[viktor.kirilov]

The way to render hair/archives in Maya 2014.5 was to choose "VRScene" as the operation from the Preview/Output tab of the xgen window. The temporary vrscene is done by us behind the scenes and the user should not worry about it. To instance and render a tree, just export it as an archive and feed it to a description.

The XGen support we have for maya 2015 is much better. To use it, the operation should be left to "Render".
Currently the tutorial for using xgen with vray 3.0 for maya 2015 is being written. When it is done, I shall post a link to it here

[viktor.kirilov]

The documentation on XGen in V-Ray 3.0 for Maya 2015+ is almost done! Only the Archive Primitives section is not yet complete! You can check it out here:
http://docs.chaosgroup.com/pages/vie...pageId=5541332