ICE Guide > ICE Reference > ICE Compounds > Task Tab - Particles > Motion Control >

Flow Along Curve

This compound modifies the velocity vector so that particles flow along a curve's tangent.

Plug its Execute port into a Port on the ICETree node.

For more information, see ICE Particles Flowing Along a Curve [ICE Particle Simulations].

Tasks: Particles/Motion Control

Output Ports: Execute

Weight	The amount that the particles are attracted to the curve.
Curve	The curve along which the particles flow. Plug the curve's Value output into this port.
Reverse Direction	Reverses the direction of particle flow along the curve.
Enable Cutoff Distance	Toggles the activeness of the Cutoff Distance option.
Cutoff Distance	The maximum distance (in Softimage units) in which the particle will flow along the curve.
Weight Over Distance Profile	This graph defines how the Weight value affects the particles over the distance from the curve.
Speed Control	The method of controlling the particle speed along the curve: Maintain Speed Lose Speed Based on Change in Direction Set New Speed
New Speed	If you selected Set New Speed as the Speed Control, you can set the particle speed here. This is the number of Softimage units the particle moves per second.
Align Particle	Rotates the particles so that they point along the direction of movement along the curve.
Local Vector	If you selected Align Particle, you must set the vector that is used to align the particles. The Y axis is typically the vector that points along the length of a particle. If you change your particle type to cone, you can see that the Y axis is the direction of the cone point. The X and Y axes are the sideways axes.

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