Adobe After Effects CS3 Instrukcja Użytkownika Pobierz pdf (Strona 182)

AFTER EFFECTS CS3

User Guide

177

See also

“Working with 3D layers” on page 171

“Auto-Orientation options” on page 146

“Shortcuts for 3D layers” on page 649

“Effects with a Comp Camera attribute” on page 349

“Select a view layout and share view settings” on page 126

Create a camera layer

❖ Choose Layer > New > Camera, or press Ctrl+Alt+Shift+C (Windows) or Command+Option+Shift+C (Mac OS).

Note: By default, new layers begin at the beginning of the composition duration. You can instead choose to have new

layers begin at the current time by deselecting the Create Layers At Composition Start Time preference (Edit >

Preferences > General (Windows) or After Effects > Preferences > General (Mac OS)).

Change camera settings

You can change camera settings at any time.

❖ Double-click the camera layer in the Timeline panel, or select the layer and then choose Layer > Camera Settings.

Camera settings

You can change camera settings at any time by double-clicking the layer in the Timeline panel or selecting the layer

and choosing Layer > Camera Settings.

Name The name of the camera. By default, Camera 1 is the name of first camera that you create in a composition,

and all subsequent cameras are numbered in ascending order. You should choose distinctive names for multiple

cameras to make it easier to distinguish them.

Preset The type of camera settings you want to use. The presets are named according to focal lengths. Each preset

is meant to represent the behavior of a 35mm camera with a lens of a certain focal length. Therefore, the preset also

sets the Angle Of View, Zoom, Focus Distance, Focal Length, and Aperture values. The default preset is 50mm. You

can also create a custom camera by specifying new values for any of the settings.

Zoom Thedistancefromthelenstotheimageplane.Inotherwords,alayerthatistheZoomdistanceawayappears

at its full size, a layer that is twice the Zoom distance away appears half as tall and wide, and so on.

Angle Of View The width of the scene captured in the image. The Focal Length, Film Size, and Zoom values

determine the angle of view. A wider angle of view creates the same result as a wide-angle lens.

Enable Depth Of Field Applies custom variables to the Focus Distance, Aperture, F-Stop, and Blur Level settings.

Using these variables, you can manipulate the depth of field to create more realistic camera-focusing effects. (The

depthoffieldisthedistancerangewithinwhichtheimageisinfocus.Imagesoutsidethedistancerangeareblurred.)

Focus Distance The distance from the camera to the plane that is in perfect focus.

Lock To Zoom Makes the Focus Distance value match the Zoom value.

Note: If you change the settings of the Zoom or Focus Distance options in the Timeline panel, the Focus Distance value

becomesunlockedfromtheZoomvalue.Ifyouneedtochangethevaluesandwantthevaluestoremainlocked,thenuse

the Camera Settings dialog box instead of the Timeline panel. Alternatively, you can add an expression to the Focus

Distance property in the Timeline panel: Select the Focus Distance property, and choose Animation > Add Expression;

then drag the expression pick whip to the Zoom property. (See “Working with expressions” on page 547.)

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Adobe After Effects CS3 Instrukcja Użytkownika Strona 182