Mathematical marbling animation with ink drops, combing, and paper reveal

Each ink drop pushes the ink already on the water outward using a closed-form formula that preserves area, and dragging a comb through it is a different exact transform (the paper is Jaffer et al., "Mathematical Marbling"). The video shows the whole process: drops landing, rings spreading, a comb dragging out a classic pattern, then the paper being laid down and peeled off with fibre texture and slight bleed. Every frame is a real marbling operation, not a filter. Built in Python + numpy (or WebGL) and rendered with ffmpeg. do it