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60 Chapter 11: Space Warps and Particle Systems
Particle stream caught in a vortex
Procedure
To crea te a Vor tex spa ce wa r p:
1.
On the Create panel, click Space Warps.
Choose Forces from the list, and then click
Vor t e x .
2. Determine which world axis you want the
vortex to spiral around, and then drag in the
appropriateviewporttocreatethespacewarp.
For example, if you want the vortex to spin
around the vertical world axis, create the space
warpintheTopviewport.Youcanrotatethe
warp later to change the vortex direction, and
animate the warp orientation.
The Vortex warp ap pears as a curved-arrow
icon in the plane you drag in, with a second,
perpendicular arrow indicating the axis of
rotation as well as the direction of the well. This
second axis is ca lled the
drop axis.
Note: Thepositionofthespacewarpplays
an important role in the results. The vert ical
position affects the shape of t he vortex, and
the horizontal position determines its location.
If you want the p articles to spiral around the
particle emitter, place both at the same location.
Interfa ce