There are lots of drawing and painting dedicated apps, but this one in particular is a pleasure to use. Lovely digital paint simulation, designed to replicate authentic ink on a variety of surfaces.
This week I am going home, which means I have access to paints etc, and I'm taking my camera. I hope to film some shots of paint, marbling inks and other things to use in compositions in After Effects when I get back. Lots of other important things are happening at the moment, but this project is always on my mind. Working on the showreel should be satisfying.
Currently at the British Design Museum in London, there is an exhibit where you throw a bucket of virtual pain at an LED screen to create effects like this.
I have no idea who made this exhibit, I have been trying to find out but haven't got very far... very clever way of using creating digital paint interactivity though.