SAA_cameraZoom

vcanim.gif (8357 bytes) SAA_cameraZoom
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SAA_cameraZoom

Zooms in or out in a scene.

This function increases or decreases the field of view of a camera by a relative factor of 5%. A bigger field of view means you will see more objects but they will look smaller. A smaller field of view means you will see fewer objects but they will look bigger. A big field of view will distort the scene (fish eye effect).

set scene [SAA_AllocScene]

set camera [SAA_AllocElem]

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.

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set delta -0.75

SAA_cameraZoom  $scene $camera $delta

camera

Camera to modify (perspective projection only). To get a handle on a camera in a scene, use SAA_sceneGetCameras().

delta

Delta angle for the field of view of the projection. In this release, only the sign is important.

A positive delta decreases the field of view by 5% (zoom in).
A negative delta increases the field of view by 5% (zoom out).

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