Just drag the big blob dot and experiment with the length, gravity, damping and iterations. Hold space to grab the rope from its tip. P.S don't run this project with turbo mode
Update 12/29/2018 Made background dark and added motion blur. This is a revamp of the simpler version that this project was. For comparasion, the points were only affected by the ones directly above them in the original version and not by ones below them. This time the engine first moves the points then iteratively applies the constraints on them on both sides. The more iterations, the more consistent the distance between the points will be but the performance will be slower..