Curve Fill
Overview
If you're into grooming, you might find that your curves from tubes, cards, or the ones you placed by hand just aren't enough. Instead of adding more curves manually, you can use the Curve Fill tool to help generating extra curves from your existing shell curves. This makes hair distribution way faster and easier.
Tube
Create Center Curve(s) - From selected curves, create a center curve.
Scatter (Fill Volume) - From selected curves, fill the in with # of curves based on the Density slider.
Create From Groups - From selected "groups' of curves, create a center curve for each group.
Card
Number of Curves: Defines the number of interpolated curves
Delete Original Middle Curves: Enabling this option will remove the original middle curves after creation if they are not needed.
Respect Selection Counts: Enable this feature to group selected curves into batches, based on the order of selection. For instance, if you select 4 curves and set the count to 2, the first two curves form one batch, and the remaining two form another batch. When do you use this tool.
To generate a different number of curves for inner layers, use the 'Select Every Other Curve on List' button. This selects half of the curves defined. Click 'Generate Center Curve' to update the curve amount accordingly.
Deform
The deform section allows you to push away curves generated from a reference base mesh
Set the base mesh first.
Select curves generated (they can be any curves, and dont have to be the ones generated by the Fill Curve Tool)
Adjust the settings:
Offset - distance to push away from the base mesh
Preserve - the % of shape preservation, if you have curlier curves, usually higher number is better. However, a % too high can fight against the offset value, so maybe around 0.3-0.7 is a good range. You will have to balance this setting with the Offset value.
Snap Root - when the curves are pushed, snap the root of curve back to the reference mesh
Snap CVs - treat this as a 'fall' off. Setting this to 1 means the fall off starts at curve.cv[1], the fall off will be small, setting it to 3, will have a smoother fall off. It also depends on the amount of CVs your curve have.
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