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The mask control points can be controlled by trackers. So track the hand (or the edges where the hand moves over the book cover) and parent those trackers to the mask.

To do that select the mask's control point, then shit-select the tracker to control it and press CtrlP. Now the control points will follow the tracker automatically.

The mask control points can be controlled by trackers. So track the hand (or the edges where the hand moves over the book cover) and parent those trackers to the mask.

To do that select the mask's control point, then shift-select the tracker to control it and press CtrlP. Now the control points will follow the tracker automatically.

The mask control points can be controlled by trackers.

First select the mask's control point, then select the tracker to control it and press CtrlP. Now the control points will follow the tracker automatically.

The mask control points can be controlled by trackers. So track the hand (or the edges where the hand moves over the book cover) and parent those trackers to the mask.

To do that select the mask's control point, then shit-select the tracker to control it and press CtrlP. Now the control points will follow the tracker automatically.

The mask control points can indeed be controlled by trackers by parenting.

First select the mask's control point, then select the tracker to control it and press CtrlP.

The mask control points can be controlled by trackers.

First select the mask's control point, then select the tracker to control it and press CtrlP. Now the control points will follow the tracker automatically.