9

604 Chapter 20: Managing Scenes and Projects
Pi ck Tr igger O bj ect—
Specifies the geometry that
will be the trigger for this TouchSensor. Click this
button, then select the geometry.
EnableActivates the Touch Sensor. When this
box is turned off, the sensor has no effect, even if
objects have been selected.
Pick Action Objects—Specifies the objects in the
scene to control with this helper.
Delete—Deletes an object from the list of picked
objects.
Icon Size—Determines the size of the Touch Sensor
helper in the scene.
TimeSensor VRML97 Helper
Create panel > Helpers > VRML97 > Object Type rollout >
TimeSensor
The TimeSensor helper lets you add time-based
animation controls, such as the start and end
frames for a par ticular object’s animation,
and looping. Use this helper to split up an
object’s animation keys over several t riggers, to
automatically start an animation upon loading the
.wrl file, or to ma ke animation endlessly loop.
Procedure
To assign an object to a TimeSensor helper:
1.
Add a Time Sensor object by clicking the Time
Sensor button and then click-dragging in the
Top viewport to create its icon.
2. Press Pick Objects and select the (animated)
geometry to control.
3. Usethecontrolstoadjustthestartandend
times of the animation, and to loop the
animation.
Interfa ce
TheTimeSensorrolloutcontainsthefollowing
options:
Loop—Repeats the animation from the start-time
frame to the stop-time frame.
Start on World Load—Star ts the animation so that
it will be running when the fi le is loaded into the
browser.
Note: This option is only available when Loop is
turned on. Otherw ise, the animation will start and
stop at the specified times.
Start Time/Stop Time—Specifies the r ange of
frames to play.
Note: If the start t ime is after the end time, the
animation will play from the earliest frame to the
last frame. It will not play the animation backward.
Pick Objects—Lets you select the objects to control
with this TimeSensor.