Chapter12-EnvironmentSensorSound.pdf

X3D Graphics for Web Authors

Chapter 12

Environment Sensor and

Sound Nodes

Hereafter, when they come to model heav'n

And calculate the stars, how they will wield

The mighty frame, how build, unbuild, contrive

To save appearances, how gird the sphere

with centric and eccentric scribbled o'er,

Cycle and epicycle, orb in orb.

John Milton, Paradise Lost, 1667

Contents

Chapter Overview and Concepts

X3D Nodes and Examples

Chapter Summary

Suggested Exercises

References

Chapter Overview

Overview: Environment Sensor

and Sound Nodes

Common fields

center, size, enabled, isActive, enterTime, exitTime

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Nodes

LoadSensor detects availability of other content

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ProximitySensor detects user location, orientation

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VisibilitySensor detects visibility of region to user

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Sound controls spatialization of audio outputs

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AudioClip controls retrieval and playback of audio

files and streams

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Concepts