Compositing Visual Effects in After Effects by Lanier Lee

Author:Lanier, Lee [Lanier]
Language: eng
Format: epub
ISBN: 9781317622116
Publisher: Taylor & Francis (CAM)
Published: 2015-10-14T16:00:00+00:00

Creating and Transforming a 3D Camera

The best way to take advantage of the 3D environment is to create a 3D camera. 3D cameras emulate real-world cameras and give you a wide range of looks by selecting different lenses or applying different transforms. To create a 3D camera, choose Layer > New > Camera. The Camera Settings window opens (Figure 5.5).

FIG 5.5 The Camera Settings window.

You can choose a lens by selecting a common focal length through the Preset menu. You also have the option to enter a custom focal length through the field below the camera body icon. If you have information pertaining to the angle of view or film size (horizontal aperture) of a real-world camera, you can enter those values into the namesake fields. The default camera style creates a two-node camera with a camera body and a point of interest (each of which has its own transforms). Alternatively, you can set the Type menu to One-Node Camera to prevent the creation of the point of interest. When you press OK, a new camera layer is created and placed at the top of the layer outline.

The camera receives an icon, which is visible in the orthographic viewports (Figure 5.6). If a 3D camera exists, you can move 2D layers closer or farther away from the camera. The After Effects 3D space uses a Y-up system, where positive-X runs right, positive-Z runs towards the camera’s default position, and positive-Y runs up.

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