Noise and Grain free
I cant get my mind around this one:
I look at this promo image and i am totally baffled by the sheer crisp clear completely noise free render!...i mean how can someone achieve such a clean clutter/noise/grain free render?...
It takes me at least 15 to 20 minutes to get a reasonably clean noise free render with my 1070 card.
I even wonder if this promo is an Iray render at all because usually there is a render with Iray logo on the image and none of these promos have that...but lets suppose that they are all Iray renders...still how is such a clutter free noise free crisp render achieved?...i am trying to contact the vendor to ask him which render settings he used to get the promos to look like this and also how long did it take te render each promo...but i see no way to contact this vendor...which means i am left in the dark with guess work...Bummer!
Can any one here with experience please take a good look at this promo (and also the other ones)...and notice how crisp they are...i am assuming that the only light source in all these scenes are the emissives alone...then again...is it possible to achieve such clean renders with Iray?...something to do with render settings...maybe?...
Like i said before...i have been busting my head for days trying to figure out how these renders were done to get those results...but without being able to ask the vendor himself...i am left in the dark...unless of course any one here can shine some light (literally) on the subject.
Please look at the attached image at full resolution.
https://www.daz3d.com/ig-italian-style-lighting
Comments
Erm... render times for "clean and crisp" depend, and also for "noise free". I have a 980Ti, and I often have render times around an hourt or two, or sometimes even through the entire night, before the image is "clean and crisp". The parts that get sufficient lights and have little shadows usually render very fast, and clean up very fast. But for an image like the one you posted, for the background to clean up, the render would need an hour or so on my card.
So, maybe there is no trick involved here, and the vendor just let the render sit through the time it needed to come to this degree of rendering?
Also, some promotional renders are done using canvases in Iray and composited back together using a tool like photoshop or GIMP. The .exr files generated by using canvases have more data per pixel than the standard rendered PNG file. This allows them to fine tune the results to get the best looking promo shots.