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Cardboard VR Projects for Android

You're reading from   Cardboard VR Projects for Android Develop mobile virtual reality apps using the native Google Cardboard SDK for Android

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Product type Paperback
Published in May 2016
Publisher
ISBN-13 9781785887871
Length 386 pages
Edition 1st Edition
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Authors (2):
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Jonathan Linowes Jonathan Linowes
Author Profile Icon Jonathan Linowes
Jonathan Linowes
Matt Schoen Matt Schoen
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Matt Schoen
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Toc

Table of Contents (11) Chapters Close

Preface 1. Virtual Reality for Everyone 2. The Skeleton Cardboard Project FREE CHAPTER 3. Cardboard Box 4. Launcher Lobby 5. RenderBox Engine 6. Solar System 7. 360-Degree Gallery 8. 3D Model Viewer 9. Music Visualizer Index

Random visualizations

We can switch between visualizations by adding and removing them over time. In the following example, we start with one active visualization and then every few seconds, toggle a random visualization on or off.

First, add an activate method to the abstract Visualization class, which takes a Boolean enabled parameter. The Boolean active variable is read-only:

    public boolean active = true;
    public abstract void activate(boolean enabled);

Its implementation will depend on the specific visualization. RenderBox library provides an enabled flag that's used when we render objects. The ones that instantiate a single Plane component are the easiest, such as WaveformVisualization and FFTVisualization. To each of these, add the following code:

    @Override
    public void activate(boolean enabled) {
        active = enabled;
        plane.enabled = enabled;
    }

For the GeometricVisualization class, we can enable (and disable) each of the component cubes:

    @Override...
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