Mashup from Firewater and Codevember 2018.
Drag and drop boxes and [A]dd, [M]ove, and [D]elete the B-Spline controls.
Use the browser history to step in your curve edits, and bookmark or share urls with the <x,y> point list hash.
Fluid Simulation by Evgeny Demidov.
Gaussian Blur by Matt DesLauriers.
Doubleclick anywhere to shut this box. Press F11 for fullscreen.

frames per second.