Adobe After Effects - Manual (Page 208)

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Note:
Note:
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Show or hide layer controls in the Composition panel
You can assign different options to each view in the Composition panel, so that you can see any combination of camera and light wireframes, layer
handles, mask and shape paths, effect control points, and motion path controls.
To choose which layer controls to show in a view, choose View > View Options, or press Ctrl+Alt+U (Windows) or Command+Option+U (Mac
OS).
To show or hide layer controls in a view, choose View > Show Layer Controls, or press Ctrl+Shift+H (Windows) or Command+Shift+H (Mac
OS). This command also shows or hides the 3D reference axes.
To show or hide mask paths and shape paths in a view, click the Toggle Mask And Shape Path Visibility button at the bottom of the
Composition panel.
Zoom an image for preview
For information on scaling a layer, not just zooming in or out of the preview image, see Scale or flip a layer.
The Magnification Ratio control in the lower-left corner of a Composition, Layer, or Footage panel shows and controls the current magnification. By
default, the magnification is set to fit the current size of the panel. When you change magnification, you change the appearance of the preview in
the panel that you are previewing, not the actual resolution and pixels of the composition.
The quality of zooming for previews can be set using the Zoom Quality preference. (See Viewer Quality preferences.)
After Effects renders vector objects before zooming (scaling for preview), so some vector objects may appear jagged when you zoom in on
them. This apparent pixelation for zooms does not affect scaling of layers or rendering to final output.
To zoom in to or out from the center of the active view, press the period (.) key or the comma (,) key. Each keypress additionally increases or
decreases the magnification.
To zoom in to or out from the center of the view using the mouse scroll wheel, place the pointer over the panel and move the scroll wheel.
To zoom in on or out from a specific point using the mouse scroll wheel, place the pointer over the panel and hold Alt (Windows) or Option
(Mac OS) as you move the scroll wheel.
To zoom in on a specific point using the Zoom tool , click the area in the panel you want to magnify. Each click additionally magnifies the
image, centering the display on the point you click. You can also drag the tool to magnify a specific area.
To zoom out from a specific point using the Zoom tool, Alt-click (Windows) or Option-click (Mac OS) the point that you want to be the center
of the zoomed-out view. Each click additionally decreases the magnification of the image, centering the display on the point you click.
To zoom the active view to 100%, double-click the Zoom tool button in the Tools panel.
To zoom to fit or to zoom to a preset magnification, choose a zoom level from the Magnification Ratio menu. To change the magnification of
all views in a Composition panel, hold Ctrl (Windows) or Command (Mac OS) while choosing a zoom level from the menu. Choose Fit to
make the image fit the Composition panel; choose Fit Up To 100% to limit the zoom level to 100%.
To pan around in the Composition, Layer, or Footage panel while zoomed in, drag with the Hand tool, which you can activate by holding down
the spacebar, the H key, or the middle mouse button. Hold Shift, too, to pan faster.
For additional ways to zoom and scroll using the mouse scroll wheel, see Scroll or zoom with the mouse wheel.
Resolution
In the context of printing and other media with fixed linear dimensions, resolution refers to linear pixel density: the number of pixels or dots in a
certain span, expressed in such terms as ppi (pixels per inch) and dpi (dots per inch).
In video, film, and computer graphics contexts, the linear measurements of the images are variable, so it doesn’t make sense to refer to the
number of pixels per inch or any other linear measure. Consider, for example, that the same 640x480 movie can be shown on the tiny screen of a
mobile device, the monitor of a desktop computer, and a huge motion billboard. The number of pixels per inch is different for each of these
presentation devices, even though the number of pixels may be the same.
In this context, the term resolution refers to a relative quantity: a ratio of the number of pixels that are rendered to the number of pixels in a source
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