As our main constraint all art had to be composed of consistently weighted strokes. This major limitation actually freed up the utilization of several techniques ranging from path offset morphs to frame-by-frame animation.

Illustrations were merged to create a dual icon set allowing the stroke to be easily offset between the two shapes.

A major part of the grunt work on this project was not the penciling of the water splash effect, but pathing the whole thing in AE to retain the flat stroked look.

In order to keep consistency in the stroke weight, there had to be some fancy expressioning that allows the stroke to remain at the same thickness while the shapes themselves scale.

After some fruitless searching for water sloshing reference, I ended up shooting my 6 month old son’s sippy cup at high framerate on the iPhone. Tip: Never underestimate shooting references yourself.