Fields > Turbulence

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Magnitude

Sets the strength of the turbulence field. The larger the number, the stronger the force. You can use positive or negative values to move the influenced objects in random directions.

Attenuation

Sets how much the strength of the field diminishes as distance to the affected object increases. The rate of change is exponential with distance; the Attenuation is the exponent. If you set Attenuation to 0, the force remains constant over distance.

Frequency

Sets the frequency of the turbulence field. Higher values cause more frequent irregularities in the motion.

Phase X, Y, Z

Sets the phase shift of the turbulence field. This determines the direction of the disruption.

Interpolation Type

Linear specifies a linear interpolation between values in the noise table. This can create noticeable breaks along lines of force. Quadratic interpolation creates a smoother look but requires noticeably more execution time.

Noise Level

The greater the value, the more irregular the turbulence. The Noise Level attribute specifies the number of additional lookups you want done in the noise table. A value of 0 does only one lookup and is equivalent to previous versions of Maya. The total turbulence value is a weighted average of the lookups.

Noise Ratio

Specifies the weighting of successive lookups. The weights are cumulative. For example, if you set Noise Ratio to 0.5, then successive lookups are weighted 0.5, 0.25, and so on. Noise ratio has no effect if the Noise Level is set to 0.

Distance

Use Max Distance

If you turn on Use Max Distance, connected objects within the area defined by the Max Distance setting are affected by the turbulence field.

If you turn off Use Max Distance, all connected objects are affected by the turbulence field, no matter how far away they are from the turbulence field.

Max Distance

Sets the maximum distance from the turbulence field that the field is exerted. You must turn on Use Max Distance for Max Distance to take effect.

Special Effects

Available in the Attribute Editor for object fields only.

Apply Per Vertex

Sets where the field emanates from the object. If you turn on Apply Per Vertex, each individual point (CV, particle, vertex) of the chosen object exerts the field equally at full strength. If you turn off Apply Per Vertex, the field is exerted only from the average position of the specified points.