computing extremely high resolution

[Jiri.Matys]

I have to compute a scene in 15000x15000 or 20000x20000, but VRay crach in Computing Direct Light Manager at a beginning. Have 12 Gigs of ram and there is some space so dont know if ram is a problem. 12000x12000 works fine.

Somewhere I read I can turn off computing to memory in VFB, that this may help. It helped, cant see a computing, doesnt matter, but at the end, maybe end of computing or saving the image, vray crash.

So, any ideas please?

[PIXELBOX_SRO]

cau jirko, zkus rendrovat do vrayimg primo....bez preview a bez zapnuteho VFB

[glorybound]

I posted something last week, which you can search for. It is the madaboutmental video on the VFB. Gotta run so if you can't it let me know.

[Jiri.Matys]

glorybound: Do you have a link, I cant find your video.

Pixelbox_sro: Cau Martine, ted uplne presne nevim, co tim vrayimg presne myslis, asi jsem tak nikdy nepocital. Ve slozce Common vypnu Rendered frame window a pak ve V-Ray tedy vypnu VFB. Ale kde tedy pak zapnu ukladani do vrayimg primo? Neni to ten VRay raw image file, co je ve VFB? To bych ale musel VFB nechat zapnute, abych to do toho mohl ulozit. A poradne nevim, co je to za format, tak potom nevim, kde bych to nacetl

[glorybound]

http://www.mentalboutmax.biz/Shop/pr...buffer_part_3/

[flino2004]

http://www.alienskin.com/blowup/index.aspx

[Jiri.Matys]

Sorry, I dont buy any videos, dont have any paypal or something.

I think I figure it out with help of PixelBox. Enable VFB, disable computing to memory, enable save to VRayimg and enable preview. Its working now, but dont know, if it didnt crash at the end again, hope not.

[PIXELBOX_SRO]

Cus, jak pises by to melo fungovat Jirko. Pokud ti to spadne tak pak bych videl snad chybu ve vrayi samotnem, pac jestli ti to nechrousta vsechnu pamet tak me ani nic jineho nenapada proc by to melo padat.
kazdopadne doporucuju ukladat rozliseni pres VFB, to znamena nemit zaskrtle "get resolution from MAX".
Co se tyka vrayimg, tak na ten pouzijes vrayimg 2 exr converter, vetsinou to funguje pres prikazovy radek.

vyzkousej si tohle cele na nejakem malem renderu hlavne...jestli se ti to bude dobre ukladat....jednou jsem se takto uz vypekl kdyz mi to nakonec neulozilo dobre!

Mej se

[Jiri.Matys]

Jj, diky. VRayimg2exr uz jsem zkusil, fungoval dobre. Vse samozrejme odzkouseno v malem rozliseni na malou kvalitu, v plne kvalite a v rozliseni 20000x20000 se to bude pocitat asi hodne dlouho, takze doufam, ze to projde. V praci mam 12 Giga ram, tak to snad vse nespolkne. Udelal jsem rychlz test ted doma a pocitalo to ok, ale stopl jsem to. Sezralo to cca 4GB, coz je v pohode. Ted uz jen, aby to na konci v pohode ulozilo a je to ok. Jen prevedeny exr se do photoshopu nacita pekne dlouho

Jo a jinak nastavovat rozliseni primo ve VFB proc, mas nejake spatne zkusenosti, kdyz to bere z nastaveni maxe pres get resolution from MAX?

[PIXELBOX_SRO]

ono to hlavne bere vic pameti...hlavne kdyz tam jeste ukladas vrstvy....obecne je zadavat rozliseni ve VFB lepsi z duvodu setreni pameti....

[add101]

Have you tried rendering to V-Ray Raw image file and turning off frame buffer and render memory to memory frame buffer?
pretty big size. I had similar problems with scanline renders a long time ago. Then i used to turn the Bitmap paging and i could get the size larger but there was still a limit to the size. With the much more powerful hardware and more RAM in computers these days it seems like computers should be able to render a lot higher res.
What are the renders for?

[Dave_Wortley]

Render using strip scanline render with backburner and it breaks the render down to strips and keeps memory lower, you can just set up a renderfarm of just your machine if that's all you've got and it'll do it.

[PIXELBOX_SRO]

does the strip scanline work well with vray?

[Dave_Wortley]

It depends which Render system you use.

If you use Backburner, then you can't get render elements with split scanline

With Deadline you can get render elements.

VrayFastSSS2 doesn't work very well with strip rendering... and you need to either bake out your light cache before strip/tile rendering or you need to use IR + Brute Force on high(ish) settings to avoid banding between strips. (Beware default Lights also)

We've been using strip/tile rendering for years and had no major issues other than those with Vray.