Page 793 - Kitab3DsMax

Chapter 29: Adding and Styling Hair and Fur, and Using Cloth
value, controlling the tip and root colors, Hue and Value Variations, the addition of mutant hairs, percent-
age to include, and specular and glossiness settings. The Occluded Ambient value sets the contrast for the
hair lighting. Smaller values have a stronger contrast, and higher values appear more washed out. The Hue
and Value Variation values define a percentage that the hair color can deviate from the specified color to
give the hair a more natural coloring. The Mutant percentage defines the percentage and color of hairs that
are discolored, such as white hairs.
Note The Material Parameters rollout, also shown in Figure 29.2, includes settings for the Occluded Ambient
The Occluded Ambient property is applied as an effect, so it is actually a fake global illumination pass. n
The Tip Fade option causes the hair to be more transparent toward the tip. The Specular Tint color changes
the color of specular highlights. The Tip Fade and Specular Tint options apply only to hairs rendered with
mental ray. The Self Shadow value sets how much the individual hairs cast shadows on other hairs, and the
Geometry Shadow settings determine how much shadow is contributed by other geometry objects. The
Geometry Material ID is used to assign a material to geometry-rendered hair.
Many of the properties in the Material Parameters rollout also can be controlled using map buttons located
to the right.
Caution
Map colors are multiplied with the base color value, so set the base color to white before using a map. n
In addition to the general and material parameters, rollouts also are available for controlling the amount of
Frizz and Kink, and for the Multi-Strand nature of hair. Frizz causes the hair to curl at its tip or root. Kink
parameters cause the hair to be zigzagged in shape; the Multi-Strand parameters cause hair to separate into
groups like grass does. Figure 29.4 shows four areas with different hair properties applied, including nor-
mal straight hair with no frizz or kink, a section with Frizz, one with Kink, and Multi-Strand.
Tutorial: Adding a spline fringe to a quilt
Quilts are designed to make you feel all warm and fuzzy, and what could be fuzzier than some soft fringe
surrounding a quilt? Fringe makes grabbing the quilt easy.
To add hairy fringe to a quilt using splines, follow these steps:
1. Open the Patch quilt.max file from the Chap 29 directory on the DVD.
2. Select the Create ➪ Shapes ➪ Line menu command, and draw a couple of simple splines that
extend at right angles from every corner of the quilt in the Top view. These splines will be used to
designate the start and end splines for the quilt fringe. Hair strands will be placed between these
two simple splines. Start at one corner, and proceed in turn clockwise around each of the corners.
Add a second line on top of the first line to complete the set of splines.
3. Select the first spline, and convert it to an Editable Spline object using the right-click quadmenu.
Then click the Attach button, and select the splines in the order they were created.
4. With all the splines selected, choose the Modifiers ➪ Hair and Fur ➪ Hair and Fur WSM menu
command to apply the Hair and Fur modifier to the splines.
5. Open the Modify panel, and in the General Parameters rollout, set the Hair Count to 2500, the
Random Scale value to 10, and the Tip and Root Thickness to 5.0. Then open the Material
Parameters rollout, and change the Tip and Root colors to white.
Figure 29.5 shows the resulting quilt with its fringe, all warm and fuzzy.

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