1, this is done in the mesh files, i resized them with softimage there is a free version for modders aviable.

2, this is done in the planet entity files. there are 2 values one is called movement radius the second is called

hyperspaceradius or something like that.

3, the unweighted stuff is truly random and the weighted stuff is that some planets appear more often than other.

   you can see the chance by opening the galaxyscenariodef with an editor.

by the way i also read your other thread:

https://forums.sinsofasolarempire.com/341885

it seems that you want to do similliar things like the mod i am working on:

https://forums.sinsofasolarempire.com/338406

you can download it and look through the files i edited maybe this gives you some hints.

not so far, but i am working right now on a downgraded version for vanilla sins.

if the tests i currently doing are successful i can release it today.

A dyson sphere hmm , not till now.

Wasn't there a mod that already has one??

The problem is if you want it to be like in Star Trek Next Gen than you will see in Sins only a metal ball in space, which is in my opinon not spectacular.

If you want to do it like in the original definition than not only the star is included but also some planets. I think a way to get this effect is to make a new SkyboxBackdrop texture that looks like a dyson sphere from inside. but if you zoom out you will see the stars again.

Another idea is to make a halfopen shell around a sun that you can see whats inside. But if you want it to be colonizable the only way is making it as a planet.

By the way, what benefits should a dyson sphere in sins have?

@NeoNaka: you can download the vanilla version of my mod now!

yeah creating a dyson swarm or ring makes sense.

i will try some designs in the particle forge.