IN and OUT Handles

Each node can expose two Bézier handle endpoints:

• IN
• OUT

These handles control the curve on each side of the node.

IN Handle

The IN handle controls how the Tube approaches the node from the previous section of the path.

Moving it changes the shape of the incoming curve.

OUT Handle

The OUT handle controls how the Tube leaves the node toward the next section of the path.

Moving it changes the shape of the outgoing curve.

Independent control

IN and OUT handles can be adjusted separately.

This allows you to create:

• Smooth continuous curves
• Different curve shapes on each side of a node
• Sharper transitions
• Asymmetric bends

Selecting a handle

Handles are selected directly in the editor by looking at the visible handle endpoint and clicking it.

How to select and move them is explained in the next articles.