Z-Depth pass problem (Anti-Aliasing/jagged edges)

[FxDesign]

Hello,
I've seen a similar post with no answer, so I wanted to create a new, more detailed post.


I have a problem with the z-depth pass exported (32bit .EXR) from octane.
With Frishluft (or an other plugin), the edges are jagged.
Because this pass seems to be anti-aliased, and to use it in after effects, it should be aliased.

So, what I do know is export my z-depth pass with Advanced render, and I get a better result.

Here are a screenshot to compare the compositing in after effects:

Watch it at 100% résolution

So, Is that an octane core problem, or it can be solved by the fabulous Aoktar ?

Thank you

[Terryvfx]

Try setting the Filter size to 0 instead of the default 1.2 also try using a position pass instead I thing that one is Aliased for sure.

[FxDesign]

Thanks Terry,

I've just made the test, and it's the same, as you can see in this picture.

I thought that it Will work.

[sixtysixxray]

Here's a tutorial on using a position pass instead of a depth pass to achieve a better result

http://greyscalegorilla.com/tutorials/y ... -is-wrong/

[FxDesign]

This is exactly what I did.
As you can see in the tutorial, he export the P.Pass from advanced render, and he has no problem in the result.

In the past, I hadn't no problem when I wanted to export the Z-pass/Position Pass from Arnold, or vray...

So If you do the test now, you will have the same result as me...


Aoktar, are you there ?

[Terryvfx]

Well I'm scratching my head right now then, seems like the best thing to do is use the default renderer for this which is perfectly fine but still I would like to know a way to fix this inside the engine.

[FxDesign]

Well I'm scratching my head right now then, seems like the best thing to do is use the default renderer for this which is perfectly fine but still I would like to know a way to fix this inside the engine.

Yes lol, I'have been trying since a long time too.... I think it's crazy if there is no solution... For a top notch render we should get a proper Z/P pass

[calus]

If you use only 1 sample for info pass and filtering to 1, your info passes are aliased.

[FxDesign]

Good Idea Calus,
So I've tried with one sample and the issue is worn edges now.

It's better, but it doesn't really work

I've tried with 4 - 8 -10 -15 sample and the result isn't better.

[calus]

right , not really usable
but as far as I know 1 sample is the only way to have aliased passes with octane.