The BCC Stars filter is an auto-animated star generator which can
composite stars over a sky color or an image layer. This filter provides
control over the size, density, movement and color of the stars, and allows
you to add galaxies. Stars can also use the alpha channel in any other layer
as a map layer, allowing you to create skies in which stars fill a pre-composed
image or logo.

To learn more about this filter, and see a breakdown of the various controls,
please click here.