58 hour rendering a bit much for me.

[PixelJockey]

This scene is taking 58-60 hours to render (VRay 1.46.12) a 2400x2400 pixel image. All the materials are VRay built from scratch in 1.46.10. There are a few glossy materials and some wicked refractions on the glass block material. Any suggestions on how to speed things up.

Settings

[TutanMark]

Hi,

First thing i saw is AA. If u have glossy material better use QMC AA than adaptive.

I was thinking... about glossiness. how many subdivision are u using? .. if u use default (50) .. is really high, try something between 8 and 15 .

... last thing... better upgrade to 46.14

Cheers,
MarcoG

[natty]

As Marco said .... upgrade your vray version

[PixelJockey]

All of my glossies have 8 subdivions. And I have upgraded to the latest version, but the 58hour render was done with 1.46.12.

I'll give the QMC AA a try with the latest VRay build. Thanks.

[natty]

there's no way that it should take that long... try it again with the new version

[Trapezium]

Any idea what area is taking the longest?

--Jon

[TutanMark]

Well.. is really strange, a scene i'm working on is taking something like 32h at 2400, but it seemes quite more complex... and i have higher values in qmc, and glossy subdivisions..

weird... really

Marco

[paulison]

same here, I rendered a set of images with aluminium panels and glass everywhere and they were taking around 20-30 hours per image at this resolution. this was in .12 though. I think thats just how long images can take to render unless you like grain....

Maybee the glass block material is too 'perfect' or else have too much detail i the geometry. This would be great if the rest of the scene was as intricate but personally i think your blocks dominate the scene a bit too much and you could probably get away with lower settings for that material

[tom schuelke]

Hi

i´ve looked at your settings, they seem to be usual . The only thing i ´ve seen is like the others, you didnt use adaptive qmc. this algorithm fits much better for glossy effects. Adaptive subdevision is better if there arn´t any glossys. we had scenes where we had very many details and also glossys, and switching to Adaptive subd. saved us half of the time.

Secound idea was to switch your reflecting surfaces if possible to only one reflection depth, esp. the glossy areas.

third thing is, why dont you use lightcache for the secoundary bounces ?

for qmc it is vrey dificult to see the bright lightened areas in interiors. Here lightcache also can speed up your scenes dramatically.

Hope some ideas work.

Tom

[Da_elf]

there is also the fact that he is using .12 which was known to be buggy.

[PixelJockey]

The scene is cooking right now with QMC AA. The irradience map is still taking decades to process. Oh well. Once this one is done I'll fiddle with the refraction and reflection settings. Thanks for all your suggestions.

[tom schuelke]

Hi Pixeljockey,

did you also switch over to lightcache for secoundary bounces ?

for interiors this is what rocks.....



Tom

[Focusing]

I've been having the same problem, long time renders, with 1.46.12 and with 1.46.13 I didn't have much luck to.

[chicoone]

In the illumination panel, Saturation is set at 0.25 from the default of 1.
Also notice that materials are still quite saturated even after that. My guess is that there are some quite bright light sources taking Vray to a screeching crawl. I've noticed Vray get slower the higher the illumination.

Ismael

edit: check Vlado's repplies here--->

http://www.chaoticdimension.com/foru...ado+shadow+map