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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

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Our thumbnail grid has 15 images. If your phone has more than 15 photos, you'll need to scroll through the list. For this project, we'll implement a simple mechanic to scroll the list up and down, using triangular scroll buttons.

Creating the Triangle component

Like other RenderObjects in our RenderBox, the Triangle component defines coordinates, normals, indices, and other data that describes a triangle. We create a constructor method that allocates buffers. Like the Plane component, we want to use the BorderMaterial class so that it can be highlighted when selected. And like the Plane component, it will determine when the user is looking at it. Without further ado, here's the code.

Create a new Java class file, Triangle.java, in the RenderBoxExt/components folder. We begin by declaring it extends RenderObject and by declaring the following variables:

public class Triangle extends RenderObject {

    /*
    Special triangle for border shader

    *   0/3 (0,1,0)/(0,1,0) (0...
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