Yeah that seems to describe the problem pretty well, as it seems to pop every 70-80 frames, I tried using a convolve node and flare setup and that seems to be a whole lot smoother also.
Darren Coombes - VFX Compositor Check out some of my work… http://vimeo.com/82865049 Mob: +61 418 631 079 Skype: darrencoombes Twitter: @durwood81 On 3 Jun 2014, at 10:45 am, Nathan Rusch <[email protected]> wrote: > Some of the guys here ran into this same issue with ZDefocus awhile back when > doing a tight rack-focus over a long shot. > > If what you’re seeing is the same issue, it comes down to Nuke effectively > using a Reformat operator internally when it scales the convolve kernel (as > the aperture disc changes size), and since reformats can only output at > whole-pixel dimensions, you get popping as it crosses kernel sizes. > > Someone ended up building a replacement specifically for that situation that > used a Transform to scale the kernel; it was somewhat slower, but smooth. > > I would definitely report what you’re seeing to The Foundry. It’s a pretty > major issue to have in defocus tools. > > -Nathan > > > From: Darren Coombes > Sent: Monday, June 02, 2014 5:15 PM > To: Nuke user discussion > Subject: Re: [Nuke-users] defocus seems to pop between frames > > Yes, just tried with Z defocus and it is still popping. > > > Darren Coombes - VFX Compositor > > Check out some of my work… > http://vimeo.com/82865049 > > Mob: +61 418 631 079 > Skype: darrencoombes > Twitter: @durwood81 > > On 3 Jun 2014, at 7:06 am, Frank Rueter|OHUfx <[email protected]> wrote: > >> Is this also happening with ZDefocus? If not, just use that with a constant >> colour in your depth channel. >> >> On 3/06/14 5:21 am, Michael Bogen wrote: >>> Try setting the “method” to "full precision”. I have also heard that doing >>> that help with speed as the full precision is threaded better. If that >>> makes sense. >>> >>> >>> Hope this helps, >>> >>> Michael >>> On Jun 2, 2014, at 12:09 AM, Darren Coombes <[email protected]> wrote: >>> >>>> Hi, i’ve got a script with a defocus going from 200 to 0 over say 500 >>>> frames, but every 70 frames or so, it seems to pop or glitch between >>>> neighbouring frames and not continue to decrease in value smoothly. >>>> >>>> Any ideas? >>>> >>>> Thanks. >>>> Darren. >>>> >>>> >>>> Darren Coombes - VFX Compositor >>>> >>>> Check out some of my work… >>>> http://vimeo.com/82865049 >>>> >>>> Mob: +61 418 631 079 >>>> Skype: darrencoombes >>>> Twitter: @durwood81 >>>> >>>> _______________________________________________ >>>> Nuke-users mailing list >>>> [email protected], http://forums.thefoundry.co.uk/ >>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >>> >>> >>> >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> -- >> <ohufxLogo_50x50.png> vfx compositing | workflow customisation and >> consulting >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
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