DR bucket stuck with vray 3.03

[suhit2005]

Hi,

Recently I upgrades all systems and DR node with vray 3.03, While rendering I found some of my Dr node get stuck at forest pack and at other area and rendering doesn't end.
See attached images.
I am using 3ds max 2014, with forest pack 4.16.

[vlado]

What kind of environment map are you using? Also, what are your AA settings?

Best regards,
Vlado

[suhit2005]

Environment is v-ray sky, and AA settings are default settings of Vray 3.0, sending you part of the scene on your email.

regards
suhit

[windowlicker]

Having related problems. It has happened every now and then after upgrading to 3.0. Always related to plant objects.

I made a test scene (some trees, a vray plane, vray sun, HDRi environement) and one bucket stuck on IM-pass 3/3 and sat there from wednesday til monday!
The scene renders if i remove either the trees or the vray plane. It renders if I change to a lower resolution. It renders if I make a region render of the problem area. It renders if I change camera angle.
I've tried switching dynamic splitting on and off. I've tried with and without embree. I've tried with poly objects and vray proxies. Subpixel mapping on and off... etc etc. It's just incredibly random and very annoying.

The only value so far I've found making any difference is the subdivs for the IM. Lowering them to 25 makes the scene render properly... but that will not look very good. Hoping for a quick solution.

[vlado]

Suhit already sent me a scene and I can reproduce the issue... looking into it now. For whatever reason some GI paths get way too long.

Best regards,
Vlado

[vlado]

So I have a fix for this now and it will go into the next patch; but if you are interested to get it before that, please email me to vlado@chaosgroup.com

Best regards,
Vlado

[katho3d]

So I have a fix for this now and it will go into the next patch

Hello Vlado,

I´ve recently posted a similar issue: http://forums.chaosgroup.com/showthr...o-2-1-6-Freeze
Sounds like this fix should solve this one too, right?

[vlado]

I think so, yes.

Best regards,
Vlado

[Svetlozar Draganov]

Hello Vlado,

I´ve recently posted a similar issue: http://forums.chaosgroup.com/showthr...o-2-1-6-Freeze
Sounds like this fix should solve this one too, right?

Not sure if the fix will help in your case.
We've tried to reproduce the issue in our environment but unfortunately we couldn't.
We are using a newer version of ForestPro which has a support for Vray 3.x - would it be possible to update your FP version and run the same test again ?

[katho3d]

Not sure if the fix will help in your case.
We've tried to reproduce the issue in our environment but unfortunately we couldn't.
We are using a newer version of ForestPro which has a support for Vray 3.x - would it be possible to update your FP version and run the same test again ?

Yes, I will try the new version of ForestPro, but Carlos from Itoo Software mentioned in this thread http://forums.chaosgroup.com/showthr...o-2-1-6-Freeze that Forest v4.1.6 is a special build that should support Vray3 and he can reproduce the problem with this version.

[katho3d]

I´ve now tested the new ForestPro 4.20b and got the same result. This seems to happen only with Vray 3, everything works correct with 2.4.

[windowlicker]

Installed the fix I got from Vlado, and I haven't been able to reproduce the problem. Considering this issue solved. Thanks!

[katho3d]

Installed the fix I got from Vlado, and I haven't been able to reproduce the problem. Considering this issue solved. Thanks!

Hello windowlicker,

could you do me a favour and test a scene for me, please? I would really appreciate that!
I haven´t got the fix from Vlado yet and so I can´t test if it solves my problem with stuck buckets on ForestPro objects too.
Here is the link: http://3dpictureworks.at/download/Testscene_max2014.zip
Just goto frame 555 and hit render a few times, if there are no buckets get stuck at the end, everything should be ok

[Svetlozar Draganov]

Thanks for the new scene - I also managed to reproduce the issue even with the latest Nightly Build.
I'll forward the case to our developers and I'll update this thread when we have some progress on that matter.

[vlado]

Yep, looking into it now.

Best regards,
Vlado