Particle effects in particular can profit from a "Wind" daemon. Imagine foam and spray on an ocean, or the crests of waves. "Wind" is perfectly suited for the grid-based secondary particle emitters (all kinds of splashes, foam, mist). With this daemon you can create particles trails to achieve highly realistic simulations. In addition with a "k Age" or "k Velocity" it is possible to add some extra realism and make the particles vanish. The integrated noise function randomly disturbs the wind just as in nature.

"Wind" can also affect rigid and soft bodies, e.g. falling leaves or objects being pushed in heavy storms. Like many other daemons, wind forces can be bounded to limit them. The hollow arrowhead of the viewport representation indicates the wind direction. An activated bounded option allows you scale the daemon using the node’s scale settings for X, Y and Z. If you want to change wind direction, just rotate the node.

Affect

Particles can be affected in two ways: either by “Force” or “Velocity”. The first option applies an external force, resulting in an acceleration, while the second one only modifies the velocities of the particles without introducing an additional acceleration. “Velocity” is not available for rigid bodies.

Strength

This value is used to adjust the wind force. Higher values will create higher accelerations.

Noise strength

There is a noise field applied to the "Wind" daemon. To control the influence and power of this noise field you can use this parameter. Higher strength settings lead to more perturbation.

Noise space scale

This value controls the overall size or frequency of the noise in space. Be aware that high scale values lead to more noise.

Noise time scale

The mode of operation is actually the same as with “Noise space scale”, but here the noise changes during simulation time. It is also possible to easily animate the noise scale with this parameter: a value of 0 means there is no animation at all, 1.0 represents the simulation time.

Bounded

This option lets you choose between “Yes” and “No”. “Yes” creates a conical shape that can be controlled via three different settings. The bounding geometry and its dimensions are displayed in the viewport. This option also unlocks the related settings below. Alternatively you can also change the shape’s size via

Node > Scale

@ radius 1

This field controls the radius of the bounding cone at the daemon’s pivot point. By default this is the upper, smaller circle. All three scale parameters are measured in metres [m].

@ radius 2

Here you can specify the second radius of the bounding cone.

@ height

Change the bounded daemon’s height with this setting.

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