Exclude material in material ID channel

[teknoel]

Is there any way to exclude a material from showing up in the material ID channel? Often Glass covers many elements in my scene and it would be useful to be able to exclude it from my material ID.

[Peter.Chaushev]

Hello,

You can either use a MultiMatte render element or take a look at the propsed workaround in https://forums.chaosgroup.com/forum/...-through-glass

Kind regards,
Peter