Apple Motion Manual de usuario descargar pdf (Pagina 46)

144 Animating with Keyframes

All the layers now rotate as they fall into position. However, they all come in at pretty

much the same time, and land without much punch. You’ll now work in both the

Keyframe Editor and the Timing pane to liven things up.

Working with Multiple Keyframe Curves

You’d like all the layers to suddenly snap into final position. Rather than adding keyframes

to each layer’s Position Z property, you can achieve this effect using just one keyframe on

the group. Then, in the Timing pane, you can adjust the timing of keyframes on individual

layers to create more of a cascading effect as the layers fall into place.

1 Stop playback, and with the Graphics and Stills group still selected, press Shift-K to

move the playhead to the ending keyframe for the rotation of the group.

2 In the Keyframe Editor, frame the curve by dragging left on the right side of the zoom

slider at the bottom of the window.

Currently, only rotation is animated for this group. We will now animate the Scale

parameter over the last ten frames of the project.

3 In the Properties pane, add a keyframe for Scale at 5:00.

4 Type –20 and press Return to move the playhead back 20 frames.

5 Add a keyframe for Scale at the playhead position, and set the value to 70%. The scale

now changes from 70% to 100% over the last ten frames, but it’s scaled at 70% for the

entire project before the last ten frames.

6 Go to the first frame, set a keyframe, and set the Scale value to 100%. Play the project.

Now the layers scale down slowly from 100% to 70% and then quickly scale up to

100% at the end. But they do so too smoothly.

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Apple Motion Manual de usuario Pagina 46