Hi Mr.E,
I did a parallax starfield recently… there are a few ways to do it. My avatar is a purple nebula that is fun to fly through.
LIKE - the example above with a shader.
Also @Necips shared a cool one with particles on his “cool hidden examples” thread.
https://www.babylonjs-playground.com/#36UHXZ#36
And the way I did the nebula and galaxy and starfield …
was to take some CC0 images from Hubble, and spark.png, give them transparency in GIMP, stack em 10 deep on the z-index (billboard) looking at camera and then alpha blend with ONEONE. It gave a nice parallax effect.
Although, if you were able to mix all three… maybe you get something even nicer.
Cheers,