This script can be used for making a leather streaks.

How it work:

1.Make an edge selection for streak base.

2. Press “Profile” button to create outline edges. With red line in curve control change the shape as you wish. It’s will updates interactively in viewport

3. Press “Depth” button to push center in\out. Blue curve control the extrude amount. Increase “Depth multiplier” spinner  value to push it more or less.

4. If you don’t like final result press “Undo”. The previously  saved model will be revealed.

P.S: if  “delete edges” checked – first and last edges will be deleted to create quads.

Download this script here: https://cgtricks.com/sofa-streak-maxscript/

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