Thread by @phamduongvu

with #Houdini #flip stick on collision enable
the flip velocity is following object velocity. The main point it Normal scale need to larger than Tangent scale

here is #houdini #flip without stick on collision enable. There are no points velocity follow object collision

the Max distance on Stick On Collision will define world space (meter) unit the distance collision velocity effects on the Flip particle velocity, here is 0.1 met, the thickness of particles follow the collision object velocity define the distance larger than above animated gif