> Is there a way to create a procedural starfield which behaves
correctly
> when animated?
>
> Why, in general, is no steady movement of the stars possible with
> pigment patterns on a sky_sphere?

You could try Chris Colefax's Galaxy generator, though I don't remember
if it can be animated.

In general, the stars will tend to flicker if they are too small, as
rays hit a star by accident almost, and you see a sample of the much
larger number of stars truly present in the texture.  Moving the camera
causes the rays to fall onto a different set of stars.

The way to do this properly (I think) is to make sure the stars are
about 1 pixel in size, which of course means scaling them differently
for different image sizes.  Either that or use extreme AA settings.

BTW, you probably do have enough memory for a decent image map.

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