Hi everyone, I have issue with a multiparm block from an object_merge sop.
I am trying to use a set of multiple curves to add door holes in some wall geometry.

the multiparm block from the object_merge sop appears ok in the hda top level UI, no problem about that.
Things become a little stranger once in unity: I can still see the multiparm thingy, I can add as many items as I want. but the part where I would drag and drop a unity gameobject is grayed out. I can't drop anything in.
Instead, there are some new parameters ( in the “Houdini Asset OTL” component)

Why can't I access parms directly in the “Houdini Parm” component ?

I have the feeling I am not being very clear …
I attached a picture to illustrate what I am saying

You are being quite clear.

This is a known problem. We wanted to abstract assets in Houdini Engine as black boxes with inputs and outputs. The translation to real Houdini assets that have geometry inputs inside parameters is not the smoothest of translations.

One of the known problems is what you are running into and that is Houdini Engine cannot dynamically change the number of (geo) inputs to an asset after the asset has been instantiated.

This will be fixed at some point but until then, it is a limitation.

thanks
good to know, I can stop fighting now