2009

5 In Event 01, click the Position Icon operator and set Location to Pivot.
This causes the particles to be emitted in a thin stream.
6 Insert a Speed By Icon operator at the end of Event 01.
The operator icon appears at the world origin.
7 Select the operator icon, and then, from the Animation menu, choose
Position Controllers >
Path Constraint on page 3297.
When you move the mouse cursor into the viewport, a rubber-band line
joins the cursor to the icon.
8 Select the Helix object.
The command panel switches to the Motion tab, and the controls indicate
that the software has applied a Position List controller to the icon, with
the listed controllers being a Position XYZ and a Path Constraint. You
can delete the former if you like, but it doesn't make any difference for
the purposes of this procedure.
9 Close Particle View, and then drag the time slider back and forth between
its extents a few times.
TIP The best way to view the results is from the Top viewport.
The particles follow the path fairly closely, but diverge noticeably at the
end of the path, where the turns are tightest. Correcting divergence in
tight turns typically requires an increase in the acceleration limit.
Particle Flow | 2879