Isotropix Forums

by **bjoern** » Thu May 31, 2018 7:36 am

Am I missing something is it not possible to holdout geo in the Zdepth as well?

by **dboude** » Thu May 31, 2018 8:41 am

Hi,

No, it's not possible. Matte objects with alpha set to 0% change the Alpha value of RGBA only. But you can do that in compositing by multiplying your alpha channel with the depth AOV.

Cheers

by **bjoern** » Thu May 31, 2018 9:12 am

feature request with arnold example:
viewtopic.php?f=5&t=3988

by **bjoern** » Mon Jun 04, 2018 12:39 pm

dboude wrote:But you can do that in compositing by multiplying your alpha channel with the depth AOV.

The Alpha channel has Anti Aliasing! So this will not work out of the box. You either have to erode it, or setup a separate Alpha channel which has only full pixel values. It's now added as a feature request. But honestly this is to me a major bug if you want todo DOF in post.

Isotropix Forums

how to make a holdout that also effects Z?

how to make a holdout that also effects Z?

Re: how to make a holdout that also effects Z?

Re: how to make a holdout that also effects Z?

Re: how to make a holdout that also effects Z?