Sand waterfall. Emitter surface with mountain. Inject random velocity.
Shape of Sand. Emit w/ attraction weight noise.
Sand canon. Use Normal to drive the vel direction.
Sand Force. Emit w/ attraction weight noise. Used POP Force, Pop Axis force for Orbit Spin.
Sand Bac. Play w/ auto sleep and awaken by geometry.
Sand water. Awaken by geometry, popadvectvyvolume, solver attribute transfer Copy P for color, sop solver.
Awaken by Geometry
Rendered in Mantra.