I am in Control | HoloLens Beginner's Guide

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HoloLens Beginner's Guide

By : Jason M. Odom

3 (2)

HoloLens Beginner's Guide

3 (2)

By: Jason M. Odom

Overview of this book

HoloLens revolutionizes the way we work and interact with the virtual world. HoloLens brings you the amazing world of augmented reality and provides an opportunity to explore it like never before. This is the best book for developers who want to start creating interactive and intuitive augmented reality apps for the HoloLens platform. You will start with a walkthrough of the HoloLens hardware before creating your first app. Next you will be introduced to the various HoloLens sensors and find out how to program them efficiently so that they can interact with the real world seamlessly. Moving on, you will learn how to create smart animations and add video overlay that implements real-time tracking and motion-sensing abilities to your HoloLens app. Finally, you will learn how to test your app effectively.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Welcome to the New World

Welcome to the New World

What exactly is the HoloLens?

What you need to develop for the HoloLens

Installing the software

Unity3d quick overview

Summary

HoloWorld

HoloWorld

Hello World!, as its customary

Saving the scene

Objects and components

First project

Physics simulations

Building the project in Unity

Summary

I am in Control

I am in Control

Prefabs

Installing the HoloToolkit

User Input overview

Gaze

Gesture

Voice

Animation

Mecanim

Here is the Game Plan

Our first script

Materials, textures, and shaders

Changing the color

Time to build and test

Summary

User-Friendly Interface

User-Friendly Interface

Reloading

Unity C# scripting

A quick example

User interface design

The Unity camera and HoloLens

Unity UI

Any object can be an interface object

Summary

Now That Is How It Should Sound

Now That Is How It Should Sound

Audio overview

Here is what it is all about

Unity audio components

Spatial sound and HoloLens

Let's listen to our work

Summary

Not So Blank Spaces

Not So Blank Spaces

Spatial Mapping

Let's get into this

Spatial Mapping in practice

Our new Skeeball machine

The home stretch

Summary

The Tools of the Trade

The Tools of the Trade

Persistence

World Anchors

The in-game debug window

In-game menu

Summary

Share What You Have Got

Share What You Have Got

Networking

Making the Skeeball game a shared experience

A very simple first step

Spawning our Skeeball machine

Filling in the blanks

The payoff

Summary

Putting It All Together

Putting It All Together

Our main Prefab

Importing the RampColliders

When bounding boxes collide

Finishing the Prefab

GameBall Prefab

Finishing touches

ApplicationManager

Summary

Fixing Problems

Fixing Problems

The Application Manager

Debugging

Profiling and fixing performance

Simplygon

Summary

Animation

In this section, we will create two objects to be animated. We will go through the basics of the Animation and Mecanim systems in Unity. Then, in order to turn these animations on and off, we will write a very simple script. Since we will cover scripting in a later chapter, this will be a very cursory look at scripting.

In the past year or so, Unity has added a very powerful tool for animating GameObjects and other properties, called Mecanim. Here, we will go over a few basic elements and animate a few objects. For those with little knowledge of how animation works, here are the big concepts in a short primer.

A quick history

In a traditional hand-drawn animation, normally, a collection of frames played at 24 frames per second, so a minute's animation is 1,440 frames. So, extrapolating 20 minutes of animation adds up to 28,800 frames of animation.

Of course, in most cases, this is way too much work for a single artist. So, a lead artist will draw the signature frames. These might be...

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Tech Concepts

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Programming languages

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