Detail Modifier 

Very often it is required to either increase or decrease the strand approximation on the fly. For example, sometimes it is a good strategy to start modeling the hair in a very low detail setting and then as you progress to increase detail and edit the hair into their final shape.

Furthermore, it is often more desirable to have a lower segment count in viewport and bigger one during render to get smoother results. Using strand detail modifier you can control the viewport and render segment count of specified strand object separately.

Strand detail uses a 3'rd degree b-spline interpolation to smoothly vary out the shape of individual hairs.

 

Parameters 

• Strand Group
  Allows you to isolate the effect of this operator by selecting a particular Strand Group created in the Edit Guides operator.

• Viewport/Render Count
  Determines how many segments should be on the re-interpolated strands.

• Smoothing
  Amount of smoothing applied to the curve before re-sampling it.

• Sample By Threshold
  If on, the curve will be sampled based on how much it bends rather than uniformly.

• Sample Size
  Size between 0 and 1 of each candidate sample when sampling the curve with threshold. Smaller values will yield better results but will be slower.

• Angle Threshold
  Minimum angle between points on curve which will create new sample.

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