Toothpaste cutter in Houdini

Toothpaste cutter

add groundplane (collisions tab) add cutter object collisions tab -> static add tube, select it particle fluids tab -> flip fluid from object particle fluids tab -> make viscous then select fluid tube in viewport

to visualize in viewport

flipfluidObject -> guides tab -> visualization enable surface

or

go to [generated] fluidObject and enable RENDER node at the end (this switch from DOP visualization data to mesh)

fine tuning

DOPnetwork -> flipfluidobject Particle separation: 0.03

turn emitter on/off

Source Volume -> Activation: $FF<190