We just had similar issue, with artifacts in random frames using ZDefocus. Very hard to debug. In our case the artifacts were triggered by large depth differences and appeared in same place. Reducing depth difference in these places removed artifacts completely. Hope it helps. Lev
________________________________ From: Doug Wilkinson [d...@buck.tv] Sent: 06 February 2014 22:37 To: Nuke user discussion Subject: Re: [Nuke-users] ZDefocus buggy? Yea i've noticed this with zdefocus. i don't think that clamping fixed this issue. On Tue, Feb 4, 2014 at 6:50 PM, Frank Rueter <fr...@beingfrank.info<mailto:fr...@beingfrank.info>> wrote: I have had this with an earlier version of ZDefocus but not recently. Checking for NaNs is definitely a good idea. On 05/02/14 15:27, Ryan O'Phelan wrote: Any chance there are NANs in the renders? Mental Ray? R On Feb 4, 2014 10:23 AM, "Falko Paeper" <falko.pae...@filmakademie.de<mailto:falko.pae...@filmakademie.de>> wrote: Hi Nukers, has anyone of you guys ever got wierd artifacts (infinite color values) or unstable comps using ZDefocus? It happened twice now in two different companies with two different projects and two different version of nuke (NukeX 7.0v6 & NUKEX 7.0v9). It appears on random frames (in a sequence of 300 frames on 2 or 3) and (I think) only when the focus plane is animated and/or when I use multiple ZDefocus Nodes in the same comp. Also the comp gets highly unstable and crashes by only clicking on the ZDefocus node. In both cases the depth pass was rendered with sitoa to EXR with the depth info stored in Alpha but I doubt thats part of the issue since I checked the data and its all normal (no broken pixels or unusual values). The thing is, I can get rid of the issue by either disable "automatic layer spacing" or shuffle the depthpass into another channel then "depth"? But that only helps for one frame and it then will certainly appaers on a another random frame. At least I can somehow fix it but its still pretty annoying. Anyone with similar experiences or work arounds? cheers Falko __________________________________________________ Falko Paeper falko.pae...@filmakademie.de<mailto:falko.pae...@filmakademie.de> Skype: fpaeper Karlsplatz 1 | 71638-Ludwigsburg | Germany __________________________________________________ Falko Paeper Tel. 0173 74 84 449 falko.pae...@filmakademie.de<mailto:falko.pae...@filmakademie.de> | falko-pae...@web.de<mailto:falko-pae...@web.de> Skype: fpaeper Karlsplatz 1 | 71638-Ludwigsburg ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. _______________________________________________ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk<mailto:Nuke-users@support.thefoundry.co.uk>, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users _______________________________________________ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk<mailto:Nuke-users@support.thefoundry.co.uk>, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users _______________________________________________ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk<mailto:Nuke-users@support.thefoundry.co.uk>, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
_______________________________________________ Nuke-users mailing list Nuke-users@support.thefoundry.co.uk, http://forums.thefoundry.co.uk/ http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
