Hierarchical Modeling - Essentials of Interactive Computer Graphics - page 278

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Hierarchical Modeling
This chapter discusses approaches to build hierarchical models, compound geo-
metric objects where independent components can be controlled by transforma-
tions. This chapter:
• analyzes the technical requirements for building hierarchical models and
derives the concept of a scene node;
• presents approaches to organize scene nodes into scene graphs and scene
trees as hierarchical models;
• describes the scene node parent-child relationship where the child inherits
the parent's transformation;
• describes object coordinate spaces in a scene graph/tree and experiments
with transforming from object to device coordinate spaces.
After this chapter we should:
• understand how to design and define a compound object with independently
controllable components;
• understand how to control and interact with the different components in a
hierarchical model.
In addition, with respect to hands-on programming, we should:
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