A Blackbird Called Sue shows how you can make a twinkling star field using Fusion or Resolve.

Why simply have a static star field? Add some life to the stars by making them twinkle. Check out this new (and short) tutorial from a blackbird called sue that shows a flexible method to create twinkling.

The techniques covered are practical for much more than just star fields; you can also use this for glitter and all kinds of other stuff.