Got a grab on the balls of the issue, it's the bouncing. If I decrease the Ray Depth of Diffuse to 0, no bouncing, no issue...
From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Szabolcs Matefy Sent: Wednesday, February 26, 2014 11:21 AM To: softimage@listproc.autodesk.com Subject: RE: Anybody succes with the new skin shader for Arnold? Kicking the SSS in the butt will disable this for sure. However, in all other place the sss looks just fine. It looks like that the SSS are bouncing a lot amplifying the effect. Sure, the eyelids are thinner, maybe I should darken the deep scatter texture there. But, the question is then, from where the hell it get the light to make the SSS so bright? Even if it's unlit...Anyway, thanks for the hint, I'll check it during the lunchbreak :) Cheers From: softimage-boun...@listproc.autodesk.com<mailto:softimage-boun...@listproc.autodesk.com> [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Andreas Bystrom Sent: Wednesday, February 26, 2014 10:40 AM To: softimage@listproc.autodesk.com<mailto:softimage@listproc.autodesk.com> Subject: Re: Anybody succes with the new skin shader for Arnold? that looks like the deep scatter radius is way too high, are you sure it's within a reasonable range? try disabling it temporarily and see if it goes away. it could also be a model issue perhaps, is the model closed around the eyes, or is there anything else that might cause the sss to go crazy? also, been a while since I spent time in sitoa, but these days there seems to be both a shader called "skin_sss" and one called just "skin", both have a radius multiplier. On Wed, Feb 26, 2014 at 10:23 PM, Szabolcs Matefy <szabol...@crytek.com<mailto:szabol...@crytek.com>> wrote: So, meanwhile I won against the displacement mapping, decreasing a bit the shallow scatter radius helps bringing out the details. But, I have strong red effect around the eyes The radii are quite reasonable, so I just don't get this glow. Especially that I have an eyeball in the eyesocket... From: softimage-boun...@listproc.autodesk.com<mailto:softimage-boun...@listproc.autodesk.com> [mailto:softimage-boun...@listproc.autodesk.com<mailto:softimage-boun...@listproc.autodesk.com>] On Behalf Of Stephen Blair Sent: Tuesday, February 25, 2014 7:23 PM To: softimage@listproc.autodesk.com<mailto:softimage@listproc.autodesk.com> Subject: Re: Anybody succes with the new skin shader for Arnold? SSS softens displacement detail, in any renderer. Can you share some screenshots to help us understand the issues? Maybe show us what you expect versus what you get? Soften too much compared to what? What kind of displacement are you using? The skin shader doesn't support bump or autobump, if that's what you are using. Thanks Stephen Solid Angle Support On Tue, Feb 25, 2014 at 12:56 PM, Steven Caron <car...@gmail.com<mailto:car...@gmail.com>> wrote: you should join the sitoa/mtoa mailing lists to get your answers... i have not used the new skin shader but from your last post you noticed there is no diffuse component but that is actually physically correct according to what marcos said. On Tue, Feb 25, 2014 at 9:30 AM, Szabolcs Matefy <szabol...@crytek.com<mailto:szabol...@crytek.com>> wrote: Hey guys I'm testing Arnold, and I found the new skin shader a little odd. First of all, it seems, that it softens the displacement way too much, though I made my character with slightly exaggerated details, and yet, those almost completely gone with the SSS...Could any of you show me some good result with realistic skin? Cheers Szabolcs ___ This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message, which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. Crytek GmbH - http://www.crytek.com - Grüneburgweg 16-18, 60322 Frankfurt - HRB77322 Amtsgericht Frankfurt a. Main- UST IdentNr.: DE20432461 - Geschaeftsfuehrer: Avni Yerli, Cevat Yerli, Faruk Yerli -- Andreas Byström Weta Digital
