while the engine already supports both types
they seems unfinished and brings (at least predefined ones) performance hit
when i tried import 500 to 5000 asteroids it crawled the system to low numbers
when i tried import >500 comets same
also comets and asteroids seems to ignore any tries to make them non-spheric shape
comets are missing any visible tail(s) (in case of multiple stars in system they may have more tails and if memory serve me some our sol comets got double tail too)
so i'm wondering
what's reasonable amount of asteroids?
what's reasonable amount of coments?
will be there procedural asteroid fields?
will be there procedural comet clouds?
are there any ways how define procedural rings (e.g. sizes, numbers, probability of presence at gas giants and bigger / mass strong planets) ?