"universal settings" error

V-Ray V-Ray for 3ds Max Issues
1

Hi!

Rendered an interior today with IRRmap + lightcache GI, qmc AA, and it looked fine. Then I tried (just for fun) to render it with Vlados universal settings instead just to see how much longer it would take/how much better it would look. The only thing I changed was the rendersettings, to qmc AA 1-100, adaptive amount 1.0, and noise threshold 0,001 etc.

But now the render is much darker than before, and has some colored splotches that wasnt there in the IRRmap+lightcache render.

Just to make sure, I changed the rendersettings back to IRRmap etc and it renders fine again.

I just thought this was abit strange… any idea why this happened??

I use lwf by the way… but I dont see how this would have any impact…

best regards
Kalle

2

Are you using a beta version? 1/.4545 or Throbs curve? Try applying Throb’s curve instead of 1/.4545.

3

Post some renders… with splotchs and without..

Could be a material problem..

4

yes, its a beta… 1.48.04 usually it works great, and Ive used vlados settings on some exteriors before with nice results…
1/.4545 never tried throbs curve… dont have time today but Ill give it a shot as soon as I can. But why would that make any difference??

here is an image showing parts of the different renders. hmm btw, I used “render region” for these… maybe the QMC+lightcache solution doesnt like that mode?? or maybe Im just guessing here? =)

5

ah forget about it! I used “store with irradience map” on nearly all of my lights… thats got to be it, right?

Ill make a quick test now…

6

Render region works fine for basically all modes.

And yeah that could very well be your problem :slight_smile:

7

and, yes, it was :slight_smile: sorry bout that. works fine now…

thanks
Kalle

8

heheh s’ok no problems

Atleast its sorted

9

Well, now that it’s sorted, can you give us a report. What are the pros/cons of vlado’s universal method? Do you use it in production?

10

yup, Ive used the universal settings in production on a couple of exteriors with great results.
pros - extreamly easy to setup. You can switch between very fast test-renders and clean final renders by only changing a single setting (the noise threshold in the rQMC-settings rollout.
You also get very good details in shadowareas… And you will never get splotchy renders like you can get with low IRRmap settings… The only difference between a fast testrender and a final render will be the amount of noise.

cons - If you need noisefree renders it will take alot longer to render compared to using IRRmap-lightcache…

If you have some extra time for your renders, I think it would be a wise choice to use the universal settings… If you dont (i rarely do… always working with tight deadlines) then just render the old usual way…