CustomPreview in ghpythonlib

[piac]

" I tried using CustomPreview (ghcomp.CustomPreview(geometry=Geometry,shader=colors) but I didn't get it to work."

http://discourse.mcneel.com/t/new-ghpython-with-node-in-code-and-multi-threading/4499/7

[sbaer]

@piac Based on your comments on discourse, I interpret this to be that the CustomPreview component is similar to components like Kangaroo where some sort of state needs to be maintained. Is this correct?

We probably need a way to identify these types of components so we can modify the way we work with them -or- simply remove them from the list of available functions

[piac]

Yes, this is correct. The Grasshopper Counter, Custom previews, Vector Preview, Text preview, and several parts in third-party plugins will not work. These are the ones with open connections (gHowl, Exceltools, Firefly etc), all the ones with stored in-between particles (like, by heart, Kangaroo, SPM Vector Components, Rabbit), and all looping ones (like Hoopsnake, Loop) -- in short, all plug-ins that keep a copy of anything and use it later, are dereferenced too early right now. I do not think that there's a way to identify them right now.