Chapter13-GeometryTrianglesQuadrilaterals.pdf

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X3D Graphics for Web Authors

Chapter 13

Geometry Nodes, Part 4:

Triangles and Quadrilaterals

There is no “royal road” to geometry.

Euclid, to King Ptolemy I

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Contents

Chapter Overview and Concepts

X3D Nodes and Examples

Additional Resources

Chapter Summary and Suggested Exercises

References

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Contents

Chapter Overview and Concepts

X3D Nodes and Examples

Additional Resources

Chapter Summary and Suggested Exercises

References

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Chapter Overview

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Overview: Triangles and Quadrilaterals

Common fields

• solid , ccw , colorPerVertex , normalPerVertex

Review from

Chapters 2,6

Normal vectors , Normal node

Ordered polygonal nodes

• TriangleSet , TriangleFanSet , TriangleStripSet , and

QuadSet

Indexed polygonal nodes

• IndexedTriangleSet , IndexedTriangleFanSet ,

IndexedTriangleStripSet , and IndexedQuadSet

Pay close attention to detail with these nodes!

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