You can separate two tangent handles (break the tangent) and move them separately using the Break option from the Edit Mode
box:
- To break and move a tangent handle, select Break (B) and click the tangent handle. The tangent is displayed as a dashed line, indicating it is "broken."
- To reconnect two broken tangent handles, click the vertex or select Auto (U) and click either of the two tangent handles. The tangent is displayed as a solid line.
- To change the position of an individual tangent handle after releasing the cursor, select Move (M).
In the Vertices tab, use the fields in the Tangents section to change the length and angle for the incoming and outgoing
tangent handles. If the tangents do not combine to form a straight line, the tangents will be broken and displayed as a broken
line.
You can also use the Break option to remove tangents from vertices by clicking the vertex while in Break mode. When you remove
a tangent, the interpolation of the spline between the two vertices is modified.
The shape of the border line differs depending on whether adjacent vertices are broken:
- If adjacent vertices are unbroken, the border line curves as it approaches the vertices.
- If adjacent vertices are broken, the border line is straight as it approaches the vertices.
You can create a garbage mask composed entirely of straight edges by removing the tangents from all the vertices:
- To remove the tangent of a vertex, select Break (B) and click the vertex.
- To add a tangent back to a vertex, select Auto (U) and click the vertex. Alternatively, using the Break option, click the vertex and drag the tangent out again.
