i am making a shelf tool and i'd like to have a popup window with a custom interface appear. is this possible with the built in houdini functions or do i have to use a python library like PySide2?

i'd like to have a node selector, a directory selector and a dropdown

can't seem to find any info on custom ui from SideFX documentation

The hou.ui module has what you need, I think:
https://www.sidefx.com/docs/houdini/hom/hou/ui.html [www.sidefx.com]

BryanRay
The hou.ui module has what you need, I think:
https://www.sidefx.com/docs/houdini/hom/hou/ui.html [www.sidefx.com]

unfortunately i havent found any advanced ui building functions there, only the basic ones. So far i think PySide2 is going to be the way to do that.

Here is what i have found so far

https://www.sidefx.com/docs/houdini/hom/cb/qt.html [www.sidefx.com]
https://github.com/kiryha/Houdini/wiki/python-for-artists [github.com]

You can also consider using the tkinter python library