how to make a GALAXY.

[farhaad_yousefi]

hi
i have to make a galaxy ,that camera could dive into it
i know what i need visually
stars and smoke like nebula islands mixed with it and variation of galactic colorings
so ,i generated a mesh from where i want the stars(not a perfect one though,because the all stood so sharply at the volume that i made for guide)
and about the shader.!!? ,i'm confused
can any one give a tip about both simulation and shader usage.!?
i'd appreciate it

[caledonian_tartan]

that's maybe a start...
http://www.mootzoid.com/html/XsiCorner/emNewton.html

[farhaad_yousefi]

actually more complex than this..
how to get more fractal like density of points, and how to tweak the shaders to get smokes and nebula.!! but thanks