iCube R&D Group Support Forum

Lightcache computing is stuck at 99% and won't winish. I have a scene with 3 MS objects.
If I switch off 1 of them, the image renders fine. If I isolate all 3 MS elements, it renders fine, but if I try to render the whole scene it get stuck!
The scene consist of a few houses and 20-30 hipoly trees converted to proxies and scattered by hand.
The CPU usage is at 10%, and the RAM at some 7-8 gigs and desn't move. Is there a limit to the number of proxy instances a scene can have? I have 32 Gb of RAM so, it's not a RAM issue.
If I try to render a preview scene using Solidrocks (or manually) with extremely low LC settings, it still manages to render fine.

Any advice? I'm on a tight deadline, and just lost 4 hours today. Should I revert to vray 2.4 and the older version of MS?

this is mentioned in the manual
https://docs.icube3d.com/en:multiscatte ... ache_issue

I know it's not recomended to use LC, but I'm doing an animation and need to cut down render times as much as possible. Until yesterday, using vray 2.4 and the older build of MS, everything renderd fine.
I double checked all the materials and I'm not using normal bump, neither using groups. What I don't understand is why it gets stuck? It's not using even 1/3 of the aviable RAM.
If I thurn off either one of the 3 MS objects, the scene renders fine.
This is not a crash issue. It just wont compute the LC. It basicly stops just before "merging light caache passes"

looks like Vray problem
can you try to render on 2.4?

can you send us the scene to have a look?

To render on V-ray 2.4 I need to reinstall it. The scene is huge. If I don't figure it out, I'll try to upload everything.

just tried with Vray 2.4. It works fine. Anyway, It was stuck because of a plant model that was distributed alogng qith other bushes. It's an icube model from alpine plants, so I don't know why it was causing problems.

Where can I send the scene? Via mail or is there a forum option to upload it?

please email us with attachment or link

I have uploaded the scene and sent you an email. Waiting for a response.

Ty.

for some reason in this particular scene Light cache in Vray 3 does not work correctly with Vray2SidedMtl
changing materials to usual VrayMtl on one of the models solves the problem