the visualizer is one of those mesh/fluid gradients that designers have been swooning over for a couple years now.

the way they’ve constructed theirs is by layering copies of the artwork and “twisting” each copy. all done in a Metal shader.

the actual twist effect works like this: it distorts coords within some radius around an offset by applying a rotation whose angle increases with distance to the offset. the rotation angle is modulated by a squared ratio of the distance to the radius.