Community
Arnold for Cinema 4D Forum
Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Z Depth jagged/sawtooth Edge Issues

8 REPLIES 8
Reply
Message 1 of 9
the-dude123
1953 Views, 8 Replies

Z Depth jagged/sawtooth Edge Issues

Hi,


I'm having some issues with Z-Depth and After Effects compositing.

Image is 32bit, using Frischluft Depth of Field plugin, and EXtractoR. I know the Z-Pass is not antialiased by design.

My problem is strange edging issues when applying the Depth of field. Any suggestions on how to fix this? Again, using After Effects for compositing. The Z-Pass is precomposed in its own layer.

Thanks!

Z pass w/ EXtractoR applied:

6633-screen-shot-2020-04-07-at-33638-pm.png

Edging Issue:

6632-screen-shot-2020-04-07-at-33611-pm.png

Tags (1)
Labels (1)
8 REPLIES 8
Message 2 of 9
Message 3 of 9
the-dude123
in reply to: the-dude123

Hi Peter,

Thanks for the link. Unfortunately, that does not fix the issue. Still getting the edging problems. Even with a simple setup. See below.

6640-screen-shot-2020-04-08-at-93545-am.jpg6641-screen-shot-2020-04-08-at-93516-am.jpg6642-screen-shot-2020-04-08-at-93629-am.jpg

Message 4 of 9
Stephen.Blair
in reply to: the-dude123

DId you change the filter? By default the Z AOV uses the closest filter, if you set it to gaussian it will apply anti-aliasing



// Stephen Blair
// Arnold Renderer Support
Message 5 of 9
the-dude123
in reply to: Stephen.Blair

Hi Stephen,

Yeah, I tried the Gaussian filter at different widths (2,1,.05). It produces a different issue. This is 0.5 filter width. Filter widths of 2 and 1 are worse.

6643-screen-shot-2020-04-08-at-103952-am.jpg

Message 6 of 9
Anonymous
in reply to: the-dude123

Its better to get Zdepth rendered without Anti Aliasing especially if u are using Nuke for compositing, it will give better result preventing bloom and artifact on edges, but if u need it w AA just change the filter from closest to Gaussian.

Message 7 of 9
the-dude123
in reply to: Anonymous

Hi Hassan,

Yes, I agree with the Aliased Z-Depth vs AA'd Z-Depth. However, I've tried both ways and they BOTH produce issues. It's almost as if the Z-Depth pass is 1-2 pixels too wide. I use a Minimax in After effects to shrink the pixels, but this cuts too far into the Z pass.

I did try rendering at 4K and this seemed to drastically reduce the issue. But rendering at 4K is not practical for me. I need these frames render at 1080p without this issue.

I've also tried Maya and Arnold...same result.

If anyone has any other suggestions, they would be GREATLY appreciated.

Thanks!

Message 8 of 9

Why does this issue exist from 2015 to now and still NOT even be fixed ? There is no different from closest vs gaussian filter on Zdepth AOVS !!!!!! It's still very very jagged. Please fix !!!!

Message 9 of 9

Please fix tkis problem !

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report