zenmonkey

Andr
it's because zscale is a primitive attribute.

I did promote it in the example to a primitive attribute prior to passing to polyextrude

Andr
Anyway an even simpler approach than the post-extrude averaging, is to assign @zscale to @N.y in a point wrangle.
Then in polyextrude set Extrusion Mode to Point Normal and use ‘Existing’.

Can you send an example file of this?

Just watched Rohan Dalvi's video on polyextrude [vimeo.com] and looks like he is stumped by this “individual elements” restriction as well.

Is this a know limitation or something else? Would love houdini expert users to chime in.

Andr
Andr

Thanks Andr but your solution seems too complicated for what to me seems like a simple task.

At least conceptually it is simple - control extrusion distance via an attribute.

Isn't zscale exactly for this purpose? Why can't I use it with connected components? Am I missing something basic here?

And yes I can do it with VEX where I move points along their normal but I was experimenting with polyextrude and wanted an elegant solution. What am I confused by is that zscale attribute is essentially created for a task like this yet for some inexplicably reason it doesn't work with connected components…