645
suspendUpdates
Syntax
sprite(
which3dSprite
).suspendUpdates
Description
3D sprite property; when set to
TRUE
, causes the sprite not to be updated as part of normal screen
redraw operations. This can improve movie playback performance. Certain kinds of screen
updates will still affect the sprite, such as those due to dragging another window over the sprite.
When the
suspendUpdates
property is set to
FALSE
, the sprite is redrawn normally.
It is important to keep the
suspendUpdates
property set to
FALSE
while any element within the 3D
sprite is being animated.
swing()
Syntax
WhichQTVRSprite.swing(
pan
,
tilt
,
fieldOfView
,
speedToSwing
)
swing (
whichQTVRSprite, pan, tilt, fieldOfView
,
speedToSwing
)
Description
QuickTime VR sprite function; swings a QuickTime 3 sprite containing a VR Pano around to
the new view settings. The swing is a smooth “camera dolly” effect.
•
whichQTVRSprite
—Sprite number of the sprite with the QuickTime VR member.
•
pan
—New pan position, in degrees.
•
tilt
—New tilt, in degrees.
•
fieldOfView
—New field of view, in degrees.
•
speedToSwing
—Rate at which the swing should take place; specify an integer from 1 to 10 (slow
to fast).
The function returns immediately, but the sprite continues to change view until it reaches
the final view. The duration required to change to the final settings varies depending on
machine type, size of the sprite rectangle, color depth of the screen, and other typical
performance constraints.
To check if the swing has finished, check if the
pan
property of the sprite has arrived at the final
value.
Example
This very gradually adjusts the view of QTVR sprite 1 to a pan position of 300°, a tilt of -15°,
and a field of view of 40°:
sprite(1).swing(300, -15, 40, 1)
See also
pan (QTVR property)
Summary of Contents for DIRECTOR MX-LINGO DICTIONARY
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