Where do I find the cache, and how does one delete unneeded renders, etc.?
There is no external cache – PI just caches calculations in memory.
It doesn’t create substantial external data files.
So - other than exports, obviously - there are no remnants taking up memory/space?
Unless there are emitter libraries that you don’t want – those are the only things taking up drive space.
Locked emitter libraries are found in the following folder:
The unlocked (editable) emitter libraries are found in the following folder: