This is the position
of the hair when no forces (such as gravity) are acting upon it. You
can use these curves to influence the shape of the hair.
Working with Rest curves
is like styling hair with hairspray. The Rest curves are styled into
curls and flips, etc. When the simulation is played back, the hair
adheres to the Rest curves position as much as possible depending
on dynamic forces and attribute settings in the hair system and follicles.
For example, if your hair is not very stiff and you’re simulating
a windy day, the hairspray (Rest curves position) is less likely to
hold the hair in position.
Tip: The Damp value
can be used to relax oscillating curves on non-straight hair.
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