# ID Material - VBF Channel **URL:** \ **Category:** General\ **Created:** [February 22, 2010, 9:49pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896 "2010-02-22T21:49:41Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![40th](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/40th/32/12844_2.png) [@40th](https://forums.chaos.com/u/40th)\ **Post date:** [February 22, 2010, 9:49pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/1 "2010-02-22T21:49:41Z")
I noticed the **ID Material** in the VBF Channels list. I’m not sure if I use it correctly, but it comes out all black. The reason I want to use it is for masking out a material in post process. How to use this channel properly ? ---
**Author:** ![thomthom](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/thomthom/32/62299_2.png) [@thomthom](https://forums.chaos.com/u/thomthom)\ **Post date:** [February 22, 2010, 10:09pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/2 "2010-02-22T22:09:01Z")
Re: ID Material - VBF Channel hmm.. not sure, but MaterialID was not hooked up in the last version… You got RenderID, which gives you an aliased colour for each group/component. A while back I made a plugin that would turn all materials black, except the selected one. [http://forums.sketchucation.com/viewtopic.php?f=323&t=15790](http://forums.sketchucation.com/viewtopic.php?f=323&t=15790) Something you’d have to run on a backup file of your model. It did not remove reflection layers etc - which was impossible in the old version of VfSU. But I can do that now. So if it’d be useful I could do a quick update. ---
**Author:** ![40th](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/40th/32/12844_2.png) [@40th](https://forums.chaos.com/u/40th)\ **Post date:** [February 22, 2010, 10:57pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/3 "2010-02-22T22:57:38Z")
Re: ID Material - VBF Channel > [@thomthom](#): > > hmm.. not sure, but MaterialID was not hooked up in the last version… You mean it’s doesn’t work as it suppose too ? > You got RenderID, which gives you an aliased colour for each group/component. That might do the trick. > A while back I made a plugin that would turn all materials black, except the selected one. [http://forums.sketchucation.com/viewtopic.php?f=323&t=15790](http://forums.sketchucation.com/viewtopic.php?f=323&t=15790) > Something you’d have to run on a backup file of your model. > It did not remove reflection layers etc - which was impossible in the old version of VfSU. But I can do that now. So if it’d be useful I could do a quick update. Yeah, I used it a couple of times and it’s a life saver. You might agree with me that Vray ID material would ease on masking a material. ---
**Author:** ![thomthom](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/thomthom/32/62299_2.png) [@thomthom](https://forums.chaos.com/u/thomthom)\ **Post date:** [February 22, 2010, 11:35pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/4 "2010-02-22T23:35:44Z")
Re: ID Material - VBF Channel Yes - Material ID channels would be nice. ---
**Author:** ![dkendig](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/dkendig/32/41793_2.png) [@dkendig](https://forums.chaos.com/u/dkendig)\ **Post date:** [February 23, 2010, 5:24pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/5 "2010-02-23T17:24:09Z")
Re: ID Material - VBF Channel that channel wasn’t added on purpose, it was thrown in like the new texture types. Don’t know what it is or how it works, but it’s there if you want to play with it. Not planning on fixing it any time soon either. ---
**Author:** ![40th](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/40th/32/12844_2.png) [@40th](https://forums.chaos.com/u/40th)\ **Post date:** [February 23, 2010, 6:34pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/6 "2010-02-23T18:34:02Z")
Re: ID Material - VBF Channel > [@dkendig](#): > > that channel wasn’t added on purpose, it was thrown in like the new texture types. Don’t know what it is or how it works, but it’s there if you want to play with it. Not planning on fixing it any time soon either. And if we’ll ask you very nice ? :🙂 ---
**Author:** ![dkendig](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/dkendig/32/41793_2.png) [@dkendig](https://forums.chaos.com/u/dkendig)\ **Post date:** [February 23, 2010, 6:37pm UTC](https://forums.chaos.com/t/id-material-vbf-channel/34896/7 "2010-02-23T18:37:55Z")
Re: ID Material - VBF Channel nice try, but we’ve got enough on our plate for now. Maybe next full release, but it won’t be fixed in the upcoming patch.