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Animate a Mask Layer to Create Dynamic Effects

What is a Mask Layer?

A mask layer in Adobe Animate is a layer that allows you to hide or reveal certain parts of other layers underneath it. Masks can be used to create a variety of effects, such as fades, wipes, and transitions.

How to Create a Mask Layer

To create a mask layer, first create a shape on the stage. This shape will be used as the mask. Select the shape and go to the Modify > Convert to > Mask menu. This will create a new mask layer with the shape as the mask.

Using Shape as a Mask

When you use a shape as a mask, the content on the layers below the mask will only be visible where the shape is visible. For example, if you draw a circle and use it as a mask, only the content that is inside the circle will be visible on the layers below the mask.

Animating a Mask Layer

Once you have created a mask layer, you can animate it to create a variety of effects. To do this, select the mask layer and open the Timeline panel. You can then set keyframes for the mask's position, rotation, and scale.

Conclusion

Mask layers are a powerful tool that can be used to create a variety of dynamic effects in Adobe Animate. By combining shapes and keyframes, you can create effects that would be difficult or impossible to achieve with any other method.