I thought it might be wise to tap the community for some elegant ways to approach this. I am creating a background grid of dots for a video presentation. The dots are small, regularly spaced, their position does not change. I need to animate their opacity, or the opacity of a fill color so that they simulate a random "falling" effect, a kind of raining down look.
The fill color of the dots will be the same color as a logo, which I will simulate being "filled up" as the dots do their raining thing.
At other times it might be nice to leave the fill transparent and have just a light stroke that could change opacity over time, just to give some motion to the background.