vJoy is an experimental cross-platform visual jam / VJ software. It generates animations and effects based on an interactive tree graph. Use it for VJing, visual jam sessions or against boredom!
It runs on Android and desktops with a Java runtime.
You can download the latest unstable desktop build here: http://32k.eu/downloads/vJoy-unstable.jar and the Android version here: https://play.google.com/store/apps/details?id=eu32k.vJoy