Christian Völkner

vinayfx123
hi,
Did you get any solution for this?

Hi,

yes I did just recently! There´s a new feature of H21 called Utility Path Expression.
With it you can make Cryptomatte, Attributes or Karma AOV´s consider Refractions and Reflections in a controllable LPE like way.

It works like this:

- assign RGB through Attributes or whatever technique you like
- go to the karmarendersettings LOP -> Tab:Image Output -> Extra Render Vars -> plus Icon -> call your AOV, Attribute ect -> use the source type Primvar or RAW (LPE doesnt work).
- or if you click the dropdown under Name -> choose the preset you like that is not LPE -> You can assign Cryptomatte Object or Cryptomatte Material for example
- then under Utility Data Expression type something similar to this CT*. for it to consider transparency or like this C.*<RG>*. to consider reflections as well. I´m still new to LPE, so you might want to try a combination that works for you.

best
Christian

Hi, what do you think of the new Rigging tools in H21? It was a big step up right?

Best
Christian

wanglifu
That's a big problem now,that's why few people would build scenes in houdini.Houdini needs a new object-layer system just like other DCC.

Over the last 2 years I’m doing exactly that. Converting CAD Files in Moi, organizing, setup Materials and finishing in Blender, it’s just a lot less cumbersome and faster.

I love Houdini and I would love SideFX to consider improving this workflow.