Hair + Z pass

[Francis_Bievre]

Hello,

I am working on a short animation with characters using a lot of hair systems, and I am having troubles when adding the depth of field in post.

You can see an outline around it, on a place that should be blurred. The problem is the same with grass, but I usually don't focus on it so I never bothered.

I know that the Zpass has to be aliased to work, so I guess this is why it is a bit too "wide" on hair, which is really thin. But is there a workaround in Arnold or in post to make it work ?

Or should I just compute the depth of field at rendering (but it is too long to have a clean result ...) ?

Thank you for your help !

Francis

[timh5D75Z]

You can try rendering the character on a separate render layer and blurring it separately from the background.

[Anonymous]

i have always the same problem. i use a edgedetect and the a edgeblur node in nuke to blur the z pass a bit. this is just a workaround for me, i would like to have a better solution.

maybe it will help you a little bit.

best marc.