Hello,
i was wondering what should be the setting for the highres interior images…
currently i am rendering an image at 2300 wide
IRR @ 60/30/high with detail enhancement, delone triangulation, nearest fit…
LC at 3k 0.01 sample size
receiving splotches in GI…
Any idea where the mistake is?
or what is the theoreticla approach for setting for such big renders?
Thankx
Best regards
Martin
Can you show an image ( real size - crop with those splotches )
Try not using the delone triangulation - just use the default one.
Best regards,
nikki Candelero
will do…i just need to wait 4 it to finish…
will post the result tomorrow.
I thought thet delone trianglulation is the most detailed and correct way to compute the irrad map together with the nearest fit option…at least that is how i understood it from the online help.
what type of lights are you using? If you are using vray lights, what are your sampling subdivisions set to? I would try increasing them…
…noice can cause floor with glossy reflection…
try VrayOverrideMtl with this material in base slot and light grey or white in GI Material…
Try raising your Global Subdivs Multiplier to about 8.
Global multiplier to 8 :shock:
I disagree on it
:roll:
seems a suggest to make him suicide too long rendertimes 
increase irrad map Hsph and try to put a “direct” light inside the room to cleAN solution some vray light at windows instead to u se environment light.
Hope it helps
have nice evening
I use global multiplier of 8 all the time with lighting fast renders. I disagree on it 
The fastest “universal” GI settings for arch viz still renderings that I’ve discovered are:
Image sampler: Adaptive QMC, Mitchell-Netravelli
1st IR: 8 (draft) to 32/20, High preset
2nd LC: 500 (draft) to 1500, all else default
rQMC: global subdivs multiplier 1 (draft) to 8, all else default
so Clifton if u confirm is a method u use commonly and works even faster respect the common use, I’ll try it
thank u
bye
Oh, one other thing that speeds up rendering time drastically with these settings is to “Use lightcache for glossy rays”. Of course, I put glossy reflections on almost everything…
hello clifton thanks for tip…anyway…if u use the lightcache for glossy rays…does it affect the quality of glossies? whats the best setting for lightcache then i i dont want to see any noise on the glossies?
I think the glossies with LC look better than those accelerated with interpolation. Plus, since 1.5 it seems that interpolated glossies are quite slow. And if you use LC for glossies in all your materials, it will be animation ready… unlike interpolation.
I always set the subdivs of my glossies at 24, so the noise is never obvious. That combined with a global subdivs multiplier of 8 pretty much guarantees smooth glossies.
really? good to know that man…thanks bunch will have to try this asap
just to clarify, I was referring to glossy reflections specifically. I find that with glossy refractions 24 subdivs is to high/slow. And I use interpolation for refraction because the LC doesn’t doesn’t do them well.
I discovered that you can have LC for glossies enabled for reflections, but if you click “Use interpolation” in a material with refractive glossies, it seems the LC doesn’t calculate them. This is a very good thing.
To get rid of those IR splotches at hi res, I found out that lowering the Adaptative amount in rQMC sampler from 1 to 0,9 (or less if needed) works very well, even at Low/medium IR presets…
If you stay at 1, and then goes to Higher IR presets, it will only lower the size of the splotches but not get rid of them.
Beware if you have an extensive use of glossies, it may increase render time slightly (but not drastically in my experience)
Just My 2 Cents
Sometimes just focusing on those rendering setups aren’t enough. My
pass experiences tell me sometime the amount of light … as in the
brightness of your light source can cause splotches too. Bigger area light
sources require higher subdiv for shadow … but smaller light sources
dont. So don’t kill yourself playing with the subdivs before you understand
what it does and doesn’t do.
Pushing the global subdivs will be sucidal. I also experience more noise if
my irradiance calculation is set to high max/min resolution at times … at
times my irad would be as low as max-7 min-4 and with LC set to 100 onli!
and still gives me enough punch.
I have always tried to push the rendering time below an hour that’s my
preference.
Ah … and also don’t use 0.01 for your LC sample size this can cause
unecessary noise as the samples are so small it creates needle dots. I
usually set it to about 0.03 for hires … or even higher when the noise
don’t go away.
Best regards,
Victor NSY
