Randomly vary fur attribute values

For a more natural effect, you can randomly vary the attribute values of each hair making up a fur description using noise amplitude and noise frequency. Noise amplitude refers to the variance of an attribute, and noise frequency refers to the amount of variance over a distance or area. You can set noise amplitude and noise frequency for all attributes.

For example, if you add noise to fur Length, each hair making up the fur randomly has a different length relative to the noise frequency. If the noise frequency is low, the length variance occurs over a larger area. If the noise frequency is high, the length variance occurs over a smaller area, producing a more ragged effect.

As another example, consider adding noise to the Base and Tip Color. If the color noise frequency is low, the color is patchy. If the color noise frequency is high, the color is more mottled.

To set noise amplitude and noise frequency

1. In the Rendering menu set select Fur > Edit Fur Description > FurDescriptionName to display the Attribute Editor, where FurDescriptionName is the name of the fur description you are editing.
2. Got to the Details section and then go to the section for the attribute you want to change noise values for.
3. Modify the Noise Amplitude and Noise Frequency values. For more information see Details.