By setting additional Time Remap keyframes, you can create complex motion effects. When you enable time remapping for a layer, After Effects adds a Time Remap keyframe at the start and end points of the layer. When remapping time, you can use the values in the time-remap graph in the Graph Editor to determine and control which frame of the movie plays at which point in time. Time remapping lets you dynamically speed up, slow down, stop, or reverse footage. When you animate the track matte layer, you create a traveling matte.ĤThere are several ways to remap time in After Effects. You can animate either the track matte layer or the fill layer. To create a track matte, you need two layers: one to act as a matte, and another to fill the hole in the matte. To use the pick whip, simply drag the pick whip icon from one property to another.ģWhen you want one layer to show through a hole in another layer, you can use a track matte. The pick whip is also a way to create parenting relationships. When you import a layered Photoshop file as a single footage item, however, After Effects flattens and merges the Photoshop layers into one image.ĢThe pick whip creates expressions that link the values of one property or effect to another layer. It also preserves other features, such as adjustment layers and type. 1How does After Effects import Photoshop files?ġHow does After Effects import Photoshop files?ĢWhat is the pick whip, and how do you use it?ģWhat is a track matte, and how do you use it?ġWhen you import a layered Photoshop file into After Effects as a composition, After Effects preserves the layer order, transparency data, and layer styles from the source Photoshop document.
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