Change Width Modifier 

 

Parameters 

• Strand Group
  Specifies a strand group to which the Change Width operator is applied.
• Width
  Specifies the hair thickness. This will determine the radius of each hair strand.
• Width Multiplier
  Add any Maya texture map here to specify the thickness variation along the surface of your distribution mesh.
• Width Channel
  Specifies a strand channel or vertex color set used to vary the hair thickness for each strand.
• Width Ramp
  Use this ramp control to specify the variation in thickness of each strand from root to tip.

 

Absolute Length 

These options allow you to set the width of each strand based on its length instead of being applied equally. Shorter strands will thus not taper off as much as longer strands, for example. This behavior is useful for simulating shaved hairs.

• Use Absolute Length
  When on, the width modification along the strand length will be done from 0 to Absolute Length value and not from root to tip
• Use Longest Strand Length
  When on and Use Absolute Length is used, the longest strand will be used to calculate absolute length instead of the Absolute Length parameter
• Absolute Length
  When using absolute length, this specifies the strand length along which the width curve will be applied. Shorter strands will use less of the curve.

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