In the previous chapter, we started our journey of building our very first holographic application using HoloLens. In this chapter, we will continue with the next steps of the application development life cycle from where we left it in the previous chapter. Over the course of these two chapters, we are trying to build training scenarios for HoloLens. We have completed our envisioning phase, where we learned about the requirements and scenario identification for different training scenarios for the HoloLens device. After that, we discussed prioritization of the scenarios to be developed as part of the development phase. We took a step further toward sketching to visualize and revalidate the identified scenarios, which illustrate a kind of vision demonstration of the app. We have also covered the different aspects of 3D holographic model design for HoloLens. Now we have our 3D Assets ready to be used for the development. Finally, we have set up our development environments. All in all, we are all set to take the next steps forward.

This chapter will cover all the steps, from the setting up of the project, to deploying it on the device. A brief overview of the different aspects of this chapter are as follows:

• Setting up the Unity editor for a holographic app
• Understanding the basics of Unity editor
• Setting up the HoloLens toolkit for development
• Interacting with 3D objects using scripting
• Configuring, building, and testing your application
• Various aspects of deployment of your holographic app

We will take a step further toward development with our 3D Assets developed in the previous chapter, and we will give life to the object using scripting in Unity. You will learn how to import different assets and apply scripting to interact with the different components of holographic objects using Gaze, Gesture, and Voice Commands. Finally, you will learn the different aspects of deployment and run the application on the HoloLens device.

By the end of this chapter, you will have covered the complete end-to-end development process, starting from envisioning to final deployment in the device.