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648 Chapter 20: Managing Scenes and Projects
The Prox Sensor rollout contains the f ollo wing
options:
Length/Width/Height—Specifies the dimensions of
the bounding box that triggers the action.
Enable—Activates the Proximity Sensor. When
this check 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. The objects
can b e animated geometry, cameras, lights, or
AudioClips. Click this button then click the
objects in the viewports.
Delete—Deletes an object from the list of picked
objects.
Nav Info V R ML 97 Helper
Create panel > Helpers > VRML97 > Object Type rollout
>NavInfo
TheNavInfohelperletsyoucreateaVRML97
Nav igationInfo node. This tells t he browser how
to navigate around the VRML97 world.
Pr ocedur es
To crea te a NavI nfo helper :
1.
Add a NavInfo helper by pressing the NavInfo
button and then click-dragging in the Top
viewport to create its icon.
2. Use the controls to adjust the behavior of the
helper.
Interfa ce
The NavigationInfo rollout contains the following
options:
Ty pe—Specifies the type of movement (Walk,
Examine, Fly, and None) for navigating the world.
Implementation of these movement types may
vary from browser to browser.
Headlight—Places a directional light at the
viewpoint. The light always points in the direction
the u ser is looking.
Tip: Don’t use this option if you have lights in the
scene.
V isibility Limit—Sets the far clipping plane. Any
geometry beyond this point is invisible. The
smaller this value is, the closer the clipping plane
istothecamera.Thelargerthisvalueis,themore
of your scene is visible to the camera. A value of 0
turns off t he effect, making everything in the scene
vi sible. Us e this option to show just part of large
scenes.
Speed—Determines the speed of navigation in
units per second. Use this option to allow the u ser
to travel faster , if you’re building a large world (like
acityscape),andslower,ifyou’rebuildingasmall
world (like a room).