Inspired by https://github.com/SardineFish/raindrop-fx.
TODO:
- Smear effect.
- Trails of dripping drops.
- Drops get merged when overlap.
- Bugfix: Noncontinuous strokes when slow.
- Growing size when dripping down.
- Stretch effect.
- Sensitive to stylus pressure.
- Blured glass to create the defocus effect
And might be done if I get time:
- Grid based overlap detection.
- Transparency control of drops.
- Use WinTab API instead of Pen API.