Nature of Code - midterm proposal

For my nature of code midterm I’m thinking about representing a liquid flowing on a surface (e.g. ink on paper). When the liquid dries out, the stain that it leaves will be in the shape of some object (it could also be a video feed).

Here are some images and videos that might give an idea of what I would like to achieve.

A possible way would be to use volumeutils form toxi..maybe.