@bithaloCG (4) Invert the normal with the normal modifier.
(5) Check the check box to prevent the back side from being displayed in the object properties of the duplicated object.
@bithaloCG (1) Duplicate the object for which you want to create lines.
(2) Apply black (line color) material to the duplicated object.
(3) Set the push modifier to 0.05 to 0.1.
(If left, the thickness of the line can be adjusted.)
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