it's so clear to me that I'm using arnold that I sometimes forget to mention it. sorry about that :/ settings depend very much on how you approach such a render. here is a short overview on how I did it: the one with DoF needs more AA samples so the way I do it is to raise the AA to 10. Then I dial every aspect (lights, diffuse, glossy) of the sampling separate until I have the same amount of noise in each of them. I start with one sample and raise it until I'm somehow satisfied. Mostly 2 samples per component is enough and if we have heavy contrast in the glossy component I raise that to 3. Then raise the AA slowly to the expected noise level. In this case to 20 to really smooth things out. So here are the sampling settings: AA: 20 Diffuse: 2 Glossy: 3 one QuadLight in front of the windows: 2 Sharper Distant Light: 1 Raydepth for all components to 1 but diffuse to 4
the one without DoF doesn't need such high AA samples so we can rearrange the sample settings to something like this: AA: 6 Diffuse: 7 Glossy: 6 one QuadLight in front of the windows: 5 Sharper Distant Light: 4 Raydepth for all components to 1 but diffuse to 4 here is another one without glossy rays. this one brings the render down to 27min. it's the same setup as the one with DoF except without any glossy rays shot: http://xsi.jankin.com/dump/ClassRoom_a.0001_27min.jpg Cheers Vladimir On Sun, Feb 17, 2013 at 2:26 PM, Steven Caron <car...@gmail.com> wrote: > @vladimir, arnold correct? > > indeed its good, some of the other renders dont have the proper > light/shadow on the ground. i think its because of the techniques being > used on the windows. the 'lightplane' mesh, if its being used as an area > source it tends to give improper shadowing on the floor. > > so talking about technique, whats your setup like and sample settings? all > my renders still come in around 2hrs with too much noise still. > > s > > > On Sun, Feb 17, 2013 at 8:16 AM, Vladimir Jankijevic < > vladi...@elefantstudios.ch> wrote: > >> alright, here is my try on the scene. I tried to get it to a level of the >> 7h maxwell render. >> the maxwell render was done on a i7 2600K @ 3.4GHz and mine was on a X5680 >> @ 3.33GHz. the difference factor is about 2.75. So on my machine the >> maxwell one would have taken 2h32min >> so the first render was with depth of field and took 44min at 960x540px >> the second without DoF took 30min at the same resolution. >> I'm quiet happy with the outcome for such a good quality render and low >> setup time (about 30min from scratch), especially knowing that I can now >> throw what ever I want in that scene and in whatever quantity and it will >> render :) >> >> with DoF: http://xsi.jankin.com/dump/ClassRoom_a.0001_44min.jpg >> without: http://xsi.jankin.com/dump/ClassRoom_a.0001_30min.jpg >> >> >> cheers >> Vladimir >> >> >> On Sat, Feb 16, 2013 at 5:58 PM, Steven Caron <car...@gmail.com> wrote: >> >>> the camera in the arnold version of the scene file ronald provided >>> should match... >>> >>> https://dl.dropbox.com/u/4271217/Arnold_Classroom.rar >>> >>> >>> On Sat, Feb 16, 2013 at 2:54 PM, Octavian Ureche <okt...@gmail.com>wrote: >>> >>>> Here's another one. Tried to match the angle and res of the other >>>> renders (as best as i could). >>>> Kept the green "lcd" and the burned-out look simply out of preference. >>>> Had to up the sub-pixel sampling to counter the artifacts in the sharp >>>> reflective metals (could have pushed it further). >>>> But it balanced itself nicely with the lowered res, and got >>>> approximatively the same rendertime. >>>> Manged to get it to render in under 7 mins with lower glossy samples, >>>> but it was a bit noisier for my taste. >>>> >>>> Buenas noches, >>>> Octav >>>> >>> >>> >> >> >> -- >> --------------------------------------- >> Vladimir Jankijevic >> Technical Direction >> >> Elefant Studios AG >> Lessingstrasse 15 >> CH-8002 Zürich >> >> +41 44 500 48 20 >> >> www.elefantstudios.ch >> --------------------------------------- >> > > -- --------------------------------------- Vladimir Jankijevic Technical Direction Elefant Studios AG Lessingstrasse 15 CH-8002 Zürich +41 44 500 48 20 www.elefantstudios.ch ---------------------------------------
