Exercise 5: USING WIND
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directional wind |
radial wind |
- set up a simple particle system
- some gravity
- a little friction
- turbulence building up
- restart the particle system
- and play through so you are happy with the way the particles fall
If you are not sure what setting to use, go back to the swirling examples
and use the last example.
- turn on the wind by setting the Wind Speed to 5.0.
- play through the sequence
The wind, which by default blows from left to right, deflects the downward
movement of the particles. As the particles enter the
wind cone region, the Spread parameter, they start to be blown away.
The nearer they get to the center of the
wind cone the stronger the effect of the wind is.
Try out the two wind types:
- by default the wind is blowing from somewhere (source) to somewhere
(target). The wind blows at full speed
in this direction, dropping off in force gradually as it reaches
the maximum spread.
- switch on the multi directional wind in the PI. Now it blows in
all directions from the source location, with the speed decreasing to zero
as it reaches the outer limits. This radius is defined by the target position
in relation to the source.
- play the sequence.
- set the wind source to be in the path of the particles; Wind X Source
to 50.0
- and the target some distance away; the default location is fine
- play the sequence again
Note: here it is not necessary to restart the particle system as the wind will
have an immediate effect on all the particles.
REMEMBER: Make the wind speed 0.0 to disable the wind.
Index