G-Buffer Zpass vs V-Ray Zpass for use in post DOF (lenscare)

[smashley]

We've had this issue for some time now. We would like to use the V-Ray zpass for creating post DOF effects in fusion/AE (Lenscare Frilschuft) but that pass, even with filtering turned off, does not go far enough on the edges to provide accurate edge information for the Lenscare plugin. HOWEVER, the G-Buffer Zpass is correct and extends one pixel beyond object edges giving Lenscare the proper amount of overlap. Why not just use the G-Buffer pass and call it a day then? Well, the G buffer z pass does not support near and far values and can become unpredictable when you have things moving around.

So, how in the world do we get a useable zpass out of V-Ray that is compatible with our post DOF plugin? I imagine many other people in the V-Ray world have faced this issue. Any help is appreciated.

Thanks,

-chad

[pingus]

Looks like you are facing a similar problem we had : http://forums.chaosgroup.com/showthr...able-Filtering
We use Frilshuft with After Effect too.

[smashley]

Leaving "invert zdepth" off does not fix this issue. The zepth still needs an extra pixel on the edges of "coverage". Have you been able to find a workaround?

[Syclone1]

In AE I recently found that using an adjustment layer with lens blur applied and using the z map as the depth map, in the lens blur option there is a "Repeat edge pixels" that seems to be working for me for the moment.

[pingus]

The way we found to make an aliased Zdepth is a separate pass with draft DMC settings, no GI, no Light, no materials...
Zdepth render element is bug and cannot be extract from diffuse.