aliasing issue with Maya-vray zdepth pass in NUKE ZDefocus

[ARTECONI-CGI]

Hi Vlado,

I have tried the option available for the filtered fragments.
Although it improves and reduces the edge artifacts it introduces some other issues.
In general I didn't find a setup that works for me.

I have gone through most of the combinations and tried to use them with the Zdefocus node in Nuke but I still can't get a nice transition of Dof from foreground to background and vice versa.
I have tried doubling the resolution, clamping, unclamping, filtering, unfiltering, inverting the z-depth and saving in full 32 bit but the improvements are subtle and don't fix the jagged edges.

Someone suggests to break the shot in foreground and background but I have seen breakdown of shots well done from vray and nuke without having to separate them.

My shot isn't anything complex, and what I am trying to achieve is a dof transition as good as in Alex Roman's The 3rd and the 7th.
I reckon he uses AE and lenscare though but should this make a difference?

Kind Regards,

Giacomo.

[Lapaev]

Hey guys,

I wrecked my brain on that one too, it's always bleeding edges, nearly impossible to get smooth dof, the closest it gets to smooth is when:

1. no AA
2. nearest to Camera
3. no clamp, no filter zdpeth.
4. sometimes blur zdepth just a bit 0.5 -1.2
5. rendering 4k, keeping 4k or reformating to 2k afterwards.

Tried lenscare too, but that plugin doesn't have option not to blur inside, it's not that good for sharp product shots

[hsz]

so I'm guessing doing DOF in post isn't really an option, which is sad. so far I have not been able to get a really nice and clean DOF in post .. is good enough is some situations.

[FSGFX]

so I'm guessing doing DOF in post isn't really an option, which is sad. so far I have not been able to get a really nice and clean DOF in post .. is good enough is some situations.

you need a deep image and bokeh... http://peregrinelabs.com/bokeh/

[Lapaev]

i wish there was some better way, to just get those edges align with final image sampling, ehhh, in camera dof is the way to go for now, sucks for flexibility