TCI/Library/PackageCache/com.unity.splines@d3e1e500c9a0/Documentation~/reverse-spline-flow.md

Reverse the flow of a spline

Reverse the flow direction of a spline.

Each spline has a flow direction that moves from its first knot to its last knot. Arrows on the segments and knots of a spline indicate the flow direction of the spline.

If you reverse the flow of a spline, you create a spline that mirrors the original spline. The following occurs:

• The knot indices of the spline reverse. For example, the first knot of the original spline becomes the last knot of the reversed spline.
• For knots in the Bezier tangent mode, the In tangent becomes the Out tangent and the Out tangent becomes the In tangent.

To reverse the flow of a spline:

1. [!includeselect-spline]
2. [!includeset-spline-context]
3. Select a knot on the spline.
4. In the Scene view, right-click to open the context menu.
5. In the Scene view context menu, select Reverse Spline Flow.

Additional resources

• Knots
• Tangent modes