I've always liked your renders, but....how do you get such nice whites? How do you do the white balance? In camera or in postproduction?
Can you share some tips? There's no way I can get white walls even half as good as yours.
here is from what I wrote (chaotic) in other thread of mine:
about those white wall question. Btw I had to use sometimes a lot of tricks to get it with Vray. And here is the reason: Maximal sample intensity.
The default 20 is not enough imho for interior scenes. It produces much different "gradient" between highlights and shadows. Naturaly, it looks best at 0=fully unbiased. Then,
you get excellent light diffusion, midtones are huge ! Local contrast is best. But at great cost of sampling and fireflies. Maybe adaptivness will solve this ? Not sure, this was done with
Alpha 5 and I used value 50-80 I think, depending on picture. The big difference can mostly be seen in how bright gets the ceiling. At low value it is dark, while the walls already get burned.
At Unbiased settings, the ceiling is much more closer to walls in contrast. The whole settings can get much brighter before burning. And it can't be compensated with exposure.
Imho it only looks photorealistically when it is set at 0. There might be few reasons (GI caustics ? Some secondary reflections,etc.. didn't study too much) Heh, tough choice tough :- ).
Thankfully I could afford 20+ hours per each picture (but it was nicely clear after 6-8 mostly).
Other stuff about white balance:
I usually use somehow color neutral lightning, my HDRis are desaturated (not black and white !), tweaked, sun is 6500 Kelvin (neutral). Corona doesn't have useful color balance at the moment, as it only allows temperature (but many HDRis have color cast), so I tweak it in Photoshop using LEVELS adjastument layer set on COLOR mode.