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JSR-184 Object Parameters 567
• User-defined ID: Displays the user ID for the
object.
• Enable Rendering:Setsthepickingenableflag
of this node. The effective rendering enable
statusforthisnodeisthelogicalANDofthe
enable flags on t his node and a l l of its ancestors.
This means that the World node is disabled if
any of its ancestors are disabled. The status
of the World node has an effect only if all its
ancestors are enabled. If the effective status is
set to True, this node is enabled. If it is False,
it is disabled.
• Enable Picking: Sets the picking enable flag of
this node. The effective rendering enable status
forthisnodeisthelogicalANDoftheenable
flagsonthisnodeandallofitsancestors.This
means that the World no de is d isabled if a ny
of its ancestors are disabled. The status of the
World node has an effect only if all its ancestors
are enabled. Options are True and False.
• Alpha Factor:Allowsgroupsofmeshobjects
to fade in and out conveniently, provided
that certain preconditions related to their
appearance are met. The A lpha Factor is
defined for each node, and its value is between
0 and 255.
• Scope:Allowsthescenegraphnodestoform
conceptual groups independent of the scene
graph hierarchy. By default, all objects are
visible to all cameras and lit by all light sources.
The scope is an integer bitmask set to -1 by
default.
Background
Ever y world object has two sub-objects:
[Background] and [Active Camera]. The only
parameter available for the Active Camera is
selecting an active camera f rom sub-objects of the
current World Object. Backg round parameters are
listed below:
• Approx.Object Size:Showstheobjectsizewith
sub-objects.
• User-defined ID:DisplaystheuserIDforthe
object.
• Image Mode X and Image Mode Y:Setsthe
backgroundimagerepeatmodefortheXand
Ydirections.Imagemodecanbesettoeither
Border or Repeat.
• Depth Clear Enabled: Enables or disables depth
buffer clearing. If depth buffer clearing is
enabled, the portion of the depth buffer that
corresponds to the viewpor t is cleared to the
maximum depth value. Set this parameter to
True to enable depth buffer clearing. Set it to
False to disable.
• Color Clear Enabled: Enables or disables color
buffer clearing. If color buffer clearing is
enabled, the portion of the color buffer that
corresponds to the viewport is cleared with
the b ackg round image and/or the background
color. Set this parameter to True to enable color
buffer clearing. Set it to False to disable.
Group
Group is a scene g raph node that stores an
unordered set of nodes as its children. A Group
object is represented as <<Group>> in the
JSR-184 scene tree.
Note: Since most JSR-184 objects cannot contain
any sub-objects, the JSR-184 exporter uses the
Group object to represent the 3ds Max hierarchy.
In this case, the Group object is assigned a
name such as <<ObjectName Group>>, where
ObjectName is the name of the 3ds Max object
w ith sub-objects. Parameters available for Group
objectsarethesameasparametersforWorld
objects.
Camera
Camera is a scene graph node that defines the
position of the viewer in the scene and the