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Cameras are views into the 3D cast member. Each sprite that uses a given cast member can
display the view from a different camera. For more information on sprites, see Chapter 17,
"3D Basics," on page 443.
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Groups are clusters of models, lights, and/or cameras that are associated with one another. This
makes moving the associated items much easier; rather than moving each item separately, you
can write Lingo that moves the group with a single command.
Each model, light, camera, and group within a 3D cast member is referred to as a node. Nodes can
be arranged in parent-child hierarchies. When a parent moves, its children move with it. For
example, a car wheel can be a child of a car body. These parent-child relationships are established
in your third-party 3D modeling software or with Lingo.
The following figures show the relationships between cameras, lights, and models within the 3D
cast member as well as the relation of a model to a model resource and of a model to shaders,
textures, and motion.
Although the elements of a 3D scene can be modified and manipulated with 3D behaviors,
complex work requires Lingo scripting. For more information on behaviors, see "3D behaviors"
on page 452. The following section describes the commands and properties that can manipulate
each type of node in a 3D cast member. For another view of this material, with examples of the
use of individual commands and properties, see the Lingo Dictionary.
Model resources
Model resources are pieces of 3D geometry that can be used to display 3D models. Model
resources are visible only when they are used by a model. Model resources are reusable, and
multiple models can share the same model resource.
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Chapter 18
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