Graphics Programs Reference
In-Depth Information
The camera's creation
The
CAMERA
command (alias
CAM
) creates cameras. It prompts for the camera pos-
ition and the target position, and displays a set of options. We press the
Enter
key;
these options, if needed, can be changed later. Each camera is represented in the
model by a wireframe blue object with a camera aspect, called camera glyph. The
camera and target positions define the viewing direction. Cameras always have per-
spective projection. Camera views are always added to the
Model Views
group.
The camera's visualization and properties
When we select a camera, besides displaying its cone, a preview window is also
displayed, allowing for a better control of the camera view. Options are available for
choosing the visual style and checking if this preview window is displayed upon cam-
era selection.
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