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Hi,
scattering gives a humidity halo look and diffraction should give glare around emitters.
Problem is i cant get glare look good, it's always too soft/diffuse/porno like, despite the map i chose (i have dozens).
Is there a specific technique to get crisp, shiny "stars" around emitters, instead of blurred/glowy ones ?

thanks,
Paolo

PaZ wrote: ... porno like ...

so it can't be bad

Can you post an image? the only time I've had much luck is if you've got a small bright emitter showing in the render essentially.

-Brodie

If you're going to give us a picture make sure it's "soft porno like" so as not to offend any users

eheh... ok tomorrow i'll post something. I thought it was a common issue so i didnt felt it was necessary.

bye
Paolo

PaZ wrote:eheh... ok tomorrow i'll post something. I thought it was a common issue so i didnt felt it was necessary.

bye
Paolo

yep it is common issue. Just to stay on subject, You have not to use few words

hi,
here is an example with (pic 2) and without (pic 1). look at top-right emitter, i.e: i used a non blurred, star-like aperture map and i get this glowy thing.
I keep getting this glowy look which i dont like at all. BTW here i raised it a bit to show it better, but keeping low levels doesnt help.
I dont want glow at all, i just want glares (pic3 - done in photoshop).
What i'm missing ? Being a post effect, i tend to exclude camera settings have a role (i.e. aperture, lens stop and so on), so i tried to solve it just tweaking simulens settings, with no luck.





thanks,
Paolo

as long as You don't do animations don,t waste time and do it in photoshop. It looks just very good.

even greatest interiors in maxwellrender showreel are heavily tweaked in photoshop, so don,t be so 3d

great interior shot by the way. It must have taken ages for the noise to clear up with the emitters causing caustics through the glass chandeliers!

and another thing - I am sure You don't use obstacle map with aperture ?

You can play with simulens map and try to make your own

What are your simulens settings in that 2nd image? My tests show that your best bet is probably to leave scattering at 0 (that's where most of that porn look comes from) use your star pattern for the aperture, leave the obstacle map blank and just adjust your diffraction.

-Brodie

hi,
i just use diffraction (scattring causes soft-porno effect, yes), and i tried with map in both channel (aperture and obstacle), or just in one.
Result is always too blurry, the "star" effect around lights is way too dreamy.
I agree it's better to do it in PS, but i wanted to konw anyway.
Times were not so high, 70 min on 4 machines and 4 multilight channels (one is off since i didnt like it).
Chandeliers are partially metal (knives... yes, it's a chandelier made of knives, not my fault here ) and a "gem" put at the end of each knife.

Paolo