Hi Garry, Mark and Matthias, Now I finally understand what you mean about AA and posteffects. Never realised that it was scaling the image, very stupid. I tried Matthias settings and this dropped the rendertime from the initial 294 to 64 seconds. I made a new test, and instead of raising the scaling factor in the post effect I disabled all scaling. I left the AA settings as I made them before, now rendertime dropped even further to 41 seconds.
Arjo. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Matthias Kappenberg > Sent: dinsdag 14 november 2006 23:19 > To: user-list@light.realsoft3d.com > Subject: Re: New Thoughts was Ambient occlusion updated. > > > Hi all, > > I've tried this: > > Rendersettings: > Recursion Depth: 2 > Threshold 10 > AA 0 > Threshold 100 > Undersampling 2x2 > Threshold 50 > > AO-Effects > OutputScale 0,2x0,2 > > No Postblur > > Renderspeed is ok :-) > > Matthias > > ----- Original Message ----- > From: "Mark Heuymans" <[EMAIL PROTECTED]> > To: <user-list@light.realsoft3d.com> > Sent: Tuesday, November 14, 2006 5:10 PM > Subject: Re: New Thoughts was Ambient occlusion updated. > > > > > > > > > > As I mentioned originally , turn down the AA and this > > >project renders in no time . This project's Anti-Aliasing > > >is cranked up and it's sampling too . Turn them down > > >(after you figure out how to have Property Control > > >Windows showing) and this simple scene renders in an > > >instant . > > > > > > The actual Ambient Occlusion Post-Processing Effect > > >is lightning fast (10 seconds) compared to the 200 > > >second render of all those sharp & hard corners in > > >that scene . > > > > > > That's also because of the noise in the soft shadows. For a fair > > comparison, switch off the soft shadows... they recommend high AA > > with soft shadows but no AA with post effects (the downscaling takes > > care of it), so what to do? ;) > > I agree the AA should be low here, it's no use anyway because it's > > destroyed by the post effects at object edges. Better crank up light > > source quality. > > > > Lightning fast? It depends on the context. Do you want to render an > > animation? If a frame needs 10 minutes without AO but 30 minutes with > > it, I'll pass... whatever, it's a great shader Arjo! I'm going to try > > it with some large scenes and compare it to real GI. > > > > > > > > > > > I have a 10 second render now and then a 10 second Post- > > >Process AO & for that kind of dramatic difference it is > > >well worth it in my opinion. > > > > > > Further more , I'll bet about the same percentage of > > >RS3D users know how to eventually grab an off-screen > > >Property Window as do know how to administer Gi unto > > >their scene ... even more reason to use a simple AO > > >shader like this one. > > > > > > An even better way to solve this: > > - check bank account > > - go to local hardware store > > - ignore shop personnel, grab a cheap TFT, pay, get home and hook it > > up permanently as second monitor > > > > > > > > > Actually , this could be an awesome way to bring > > >new users into the world of RS3D Post-Processing , > > >perhaps ? RS3D Post is becoming a more & more essen- > > >tial working methodology , if you ask me . Not using > > >it is completely missing the point in a certain way . > > > > > >Thanks again for taking the time to share this project > > >with the list Arjo . > > > > > >studio > > > > > > Yes it's essential! I have only two problems with it: the AA > > destruction and the Blur effect. > > > > -Mark H > > > > >
