Poser hair guides on the left, "proof of concept" test render of 500 red,
randomly placed sphere_sweep "hairs" on the right (the Poser hair guide splines
used for interpolation are thicker and darker).

The process in a nutshell is:

For each hair -
  1) From bounding box center of the follicleSurface mesh outward in some
     random direction.

  2) If the ray hits the mesh then that trace point becomes the root of a hair.

  3) interpolate a new, distance-weighted spline (hair) between the two guide
     hair splines having roots closest to the traced root.

With these large "wires" going into the scalp it seems a bit android-like; gives
me so many side-tracking new ideas...

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www.McGregorFineArt.com

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