Wind Volume Components

Wind volume components are used to define areas in a scene where wind should blow in a certain way.

Note:

On their own these components won't have any effect in a scene. A wind system additionally has to be set up. Placing a simple wind component in a scene creates a basic wind system.

Shared Component Properties

All wind volume components have these properties:

• Strength: The strength with which the wind shall blow.
• StrengthFactor: An additional multiplier for the wind strength. Can be adjusted dynamically and may be set to a negative value to reverse the wind direction. This can be used to pull things inwards, instead of pushing them away.
• BurstDuration: If this is set to zero, the wind blows continuously. Otherwise it blows for the specified amount of time and then stops.
• OnFinishedAction: If BurstDuration is non-zero, the component will deactivate itself once the burst is done. Additionally, the component may delete itself or the entire object. Note that if None is selected, the wind burst can be restarted, simply by reactivating the component.

Sphere Wind Volume Properties

• Radius: The radius of the wind volume.

Cylinder Wind Volume Properties

• Length, Radius: The size of the cylinder.
• RadiusFalloff, PositiveFalloff, NegativeFalloff: An optional falloff for the wind strength, such that it smoothly ramps up when getting close to the cylinder. The radius falloff is used along the radial directions, the other two falloff values are used along the main axis of the cylinder either in the positive or negative direction from the center.
• Mode: How the wind force is computed.
  • Directional: The wind force is along the main cylinder axis.
  • Vortex: The wind whirls around the cylinder's axis. See the video below.

Cone Wind Volume Properties

• Angle, Length: Angle and length of the cone shape.

See Also

• Wind
• Simple Wind Component