Chapter03-Grouping.pdf

X3D Graphics for Web Authors

Chapter 3

Grouping Nodes

A Working Group is a technical committee that researches and

proposes solutions to specific technical problems relating to X3D.

Web3D Consortium

Contents

Chapter Overview and Concepts

X3D Nodes and Examples

Additional Resources

Chapter Summary and Suggested Exercises

References

Chapter Overview

Overview: grouping nodes

Concepts: DEF/USE , units of measure , coordinate

systems , right-hand rule , and bounding boxes

Grouping nodes organize objects in an X3D world

• Group , StaticGroup collect related nodes together

• Transform controls position, orientation and scale

• Inline loads other X3D scenes

• LOD (level of detail) provides different levels of

geometry quality according to the user's viewpoint

• Switch can be animated to select different children,

one (or none) at a time

Other grouping nodes are covered in Chapter 4

• Anchor, Billboard, Collision

Concepts