Adobe 12040118 - After Effects Standard, Руководство

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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.
Note: By default, the Preview option in the Camera Settings dialog box is selected. This option shows the changes in the composition as you
make them in the Camera Settings dialog box.
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.
Select Preview in the Camera Settings dialog box to show results in the Composition panel as you modify settings in the dialog box.
Note: The three things that affect depth of field are focal length, aperture, and focus distance. Shallow (small) depth of field is a result of long
focal length, short focus distance, and a larger aperture (smaller F-stop). A shallower depth of field means a larger depth-of-field blur result. The
opposite of a shallow depth of field is deep focus—meaning a smaller depth-of-field blur because more is in focus.
Camera properties relating to camera lens blur and a shape are only available in After Effects CS5.5 and later. These properties include Iris
Shape, Iris Rotation, Iris Roundness, Iris Aspect Ratio, Iris Diffraction Fringe, Highlight Gain, Highlight Threshold, and Highlight Saturation. (see
Camera Lens Blur effect (CS5.5).)
Type One-Node Camera or Two-Node Camera. A one-node camera orients around itself, whereas a two-node camera has a point of interest and
orients around that point. Making a camera a two-node camera is the same as setting a camera’s auto-orientation option (Layer > Transform >
Auto-Orient) to Orient Towards Point Of Interest. (See Auto-Orientation options.)
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 The distance from the lens to the image plane. In other words, a layer that is the Zoom distance away appears 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.
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 depth of field is the distance range within which the image is in
focus. Images outside the distance range are blurred.)
Focus Distance The distance from the camera to the plane that is in perfect focus.
Add this expression to the Focus Distance property to lock the focal plane to the camera's point of interest so that the point of interest is in
focus: length(position, pointOfInterest)
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 becomes unlocked from
the Zoom value. If you need to change the values and want the values to remain locked, then use 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 Expression basics.)
Aperture The size of the lens opening. The Aperture setting also affects the depth of field—increasing the aperture increases the depth of field
blur. When you modify Aperture, the values for F-Stop change to match it.
Note: In a real camera, increasing the aperture also allows in more light, which affects exposure. Like most 3D compositing and animation
applications, After Effects ignores this result of the change in aperture values.
F-Stop Represents the ratio of the focal length to aperture. Most cameras specify aperture size using the f-stop measurement; thus, many
photographers prefer to set the aperture size in f-stop units. When you modify F-Stop, Aperture changes to match it.
Blur Level The amount of depth-of-field blur in an image. A setting of 100% creates a natural blur as dictated by the camera settings. Lower
values reduce the blur.
Film Size The size of the exposed area of film, which is directly related to the composition size. When you modify Film Size, the Zoom value
changes to match the perspective of a real camera.
Focal Length The distance from the film plane to the camera lens. In After Effects, the position of the camera represents the center of the lens.
When you modify Focal Length, the Zoom value changes to match the perspective of a real camera. In addition, the Preset, Angle Of View, and
Aperture values change accordingly.
Units The units of measurement in which the camera setting values are expressed.
Measure Film Size The dimensions used to depict the film size.
Note: For best results, work in 32-bpc with Linearize Working Space selected in the project settings. (see Camera Lens Blur effect (CS5.5).)
Camera Commands (CS5.5)
After Effects CS5.5 and later has camera commands that can be used separately or with the Create Stereo 3D Rig function. To use the camera
commands, select a camera layer, and then choose Layer > Camera.
Link Focus Distance to Point of Interest Creates an expression on the selected camera layer’s Focus Distance property, setting the property’s
value to the distance between the camera and its point of interest.
Link Focus Distance to Layer Creates an expression on the selected camera layer’s Focus Distance property to be the distance between the