Apple Shake 4 Tutorials Manual do Utilizador descarregar pdf (Página 121)

Chapter 3 Depth Compositing 121

Here are the camera settings for the project shown in the illustrations:

6 Open the Globals tab, then click the Auto button to adjust the timeRange parameter

for the length of the walking_woman clip.

7 Click the Flipbook button in the Viewer shelf to render a preview the composite (and

keep the Flipbook window open for the next section).

8 Press the period key (.) to play the Flipbook.

Note: Pressing period (.) plays forward in the Flipbook. Comma (,) plays in reverse. The

Space bar stops/starts playback.

The results are entertaining. Virtual Betty floats over the floor, as if trucking along in

zero gravity. The problem is that Betty’s clip was rendered with a camera move, but the

MultiPlane camera is stationary. As a result, the wall and floor elements don’t match up

with the action in the animated clip. In the next section, you’ll fix this by repositioning

and animating the camera.

9 Click the Save button at the top of the Node View.

10 In the File Browser, navigate to the $HOME/nreal/Tutorial_Media/Tutorial_03/scripts

directory, then save the script as Betty.shk.

Animating a MultiPlane Camera

Take another look at the Flipbook preview. When you play back the Flipbook, the

Virtual Betty animation indicates a camera move that swings around the girl.

To animate the camera to match the walking_woman animation:

1 Click the Home button in the Time Bar and make sure the playhead is at frame 1.

2 Click the Camera tab in the MultiPlane parameters, then click the Autokey buttons next

to the translate and rotate parameters.

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Apple Shake 4 Tutorials Manual do Utilizador Página 121