Mouse drag: add a new curve.

Space: Turn on / off the clock.

s: Proceed one time step.

r: Reset.

m: Switch flow to mean curvature flow / volume preserving mean curvature flow.

h: Switch flow to heyperbolic mean curvature flow / volume preserving hyperbolic mean curvature flow (which in fact describes the dynamics of a soap bubble).

t: Show tangents and normals.

Space: Turn on / off the clock.

s: Proceed one time step.

r: Reset.

m: Switch flow to mean curvature flow / volume preserving mean curvature flow.

h: Switch flow to heyperbolic mean curvature flow / volume preserving hyperbolic mean curvature flow (which in fact describes the dynamics of a soap bubble).

t: Show tangents and normals.