Wind Speed[0..+∞m]

The strength of the wind.

If you add Turbulence, both will be superimposed by the Wind Speed.

Turbulence[-∞..+∞%]

Enter a value not equal to 0 if you want to add a wind speed varied using internal 3D noise to your existing wind speed. The larger the value the stronger the turbulence will be. The particles can even start moving in a direction opposite the direction of the Wind Speed.

Turbulence Scale[0..+∞%]

Use this value to adjust the scale of the internal 3D noise used to calculate the turbulence. The lower the value the more the speed of the particles will vary - the wind will become more "unsettled". Larger values will lead to more homogeneous particle streams whose speed changes more slowly.

Turbulence Frequency[-∞..+∞%]

Enter a value not equal to 0 if you want the noise to change over time. Lower values will cause the noise to change more slowly; larger values will cause the noise to change more quickly.

Mode

Here you can define how a particle modifier should affect dynamic objects (these settings have no effect on particles):

• Acceleration: The modifier twirls the objects around without taking their mass into consideration. Even ,heavy’ objects will behave like feathers.
• Force: This mode takes the objects’ mass into account, i.e., the ,heavier’ an object is the less it can be affected by the modifier.
• Aerodynamic Wind: This mode will actually create a flow of air (current) that will cause the objects to react according to their aerodynamic shape. This mode is not available for all modifiers - only for those for which it serves a useful purpose (e.g., Wind, Turbulence, etc.).

Note that when using the Aerodynamic Wind option, its effect will differ depending on the object over which it flows:

• Rigid Bodies: The wind will be calculated at the center of the Rigid Body and remain constant across the entire object surface.
• Soft Bodies: The wind (strength and direction) will be calculated per polygon or vertex and will affect the object accordingly.