I want to script a spell that will recreate chameleon but without the horrible refraction effect. I want to make it so your chameleon level translates into how transparent your character is. I know there is a mod that does this but it isn't perfect - requires you to unequip/re-equip items for the visual to work.

The script would make use of setactoralpha, but I can't see any script commands that would recreate what chameleon does for you (less detection chance). Any tips?

i'm pretty sure there's a wryebash option to disable the refraction shader on chameleon.