You can create clumps
of fur, such as wet or matted fur, for a whole range of fur looks.
In the Fur
Description Attribute Editor there are three attributes
to create and control clumping: Clumping, Clumping
Shape, and Clumping Frequency.
As with all Fur attributes, painting and mapping are supported.
In order to preview clumping
accurately, the Fur Accuracy attribute must
be set to 1 (default), which is in the shape node of the Fur
Feedback Attribute Editor.
Clumping respects
other attributes, including Inclination, Roll,
and Polar. For example, if Inclination is
set to 1 so the fur is lying flat, then the clumps lie flat too.
NoteWith clumping there
may be the appearance of gaps between the clumps on the surface
of the object. To correct this use one or more of the following solutions:
- Apply the same color to the shader that
is applied to the Fur’s Base Color.
- Add an additional Fur
Description of overall short fur that matches the color
of the first Fur Description.
- Add some noise to Clumping, Clump
Frequency, or other values.
To create clumps of fur on part of an
object, for example, on the chest fur of a cat
- Select the fur feedback or the surface
with the fur on it.
- In the Rendering menu
set select
Fur > Paint Fur Attributes Tool.
The Paint Fur Attributes Tool Settings window
appears.
- Select Clumping from
the Fur Attribute drop-down list.
- In the Attribute Paint tool
settings window set Value to 0 and then click Flood.
This removes clumping from the object.
- Set Value to
1 and paint on the object where you want clumps.
To map or paint ranges that are greater
than 0 to 1, such as Clumping Frequency
- Set the attribute’s Map
Multiplier value to the maximum value of the range. In
the case of Clumping Frequency, this value
would be 100.
Now you can paint or
map the attribute as usual. White will represent the Multiplier
value (100), black will represent 0, and grayscale values will be distributed
evenly between.
To map or paint ranges that can be negative,
such as Clump Shape
- Set the attribute’s Map
Offset value. For example, set the Map
Offset to -10 for Clump Shape.
- Set the attribute’s Map
Multiplier Value. For Clump Shape this
would be 20 so the black to white map would represent the full range
of -10 to 10.
