TYPE: POP
TITLE: Wind POP

The Wind POP applies wind forces on the particles. The wind 
applied is proportional to the given wind intensity and the particle's 
drag coefficient. To help visualize the effect of this operator, turn 
on the template flag to view the acceleration guides.

This POP modifies the following attributes: accel.

Parameters:
    Activation       - Turns the POP on and off		/activate
    Source Group     - Subset of points to act on
Wind
    Wind          - Wind magnitude 			/windx /windy /windz
    Scale         - Overall force scaling factor	/scale
    Ignore Mass   - Ignore particle mass 
    Override Mass - Override particle mass
    Mass          - Mass to use for override		/mass
    Override Drag - Override particle drag
    Drag          - Drag to use for override		/drag
Noise
    Seed       - Seed for random turbulence generator 		/seed
    Turbulence - # of iterations to add fractional noise	/turb
    Roughness  - Scale of noise added with each iteration	/rough
    Exponent   - Noise attenuation				/atten
    Frequency  - Spatial frequency of noise field	/freqx /freqy /freqz
    Amplitude  - Maximum value of noise field		/ampx /ampy /ampz
    Offset     - Amount to shift noise		/offsetx /offsety /offsetz
    Noise Type - Noise type to generate	

Local Variables 
    Overview - The standard local variables are usable in this POP.  Please
               refer to the Houdini manual for more details.

See Also: Attractor, Fan, Force
