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Scene Types

The QExE tool differentiates between three different types of scene.

  • The _config scene
  • The _questionnaire scene, and
  • The _evaluation scenes.
    • An evaluation scene can consist of CGI content which is defined in the Unity client as a .unity file, or the _videoPlayer.unity scene, which has been pre-programmed in the Unity client to play video files from a local URL.

_config Scene​

The _config scene is always the starting scene in a test. This serves two purposes:

  1. We give subjects / users a virtual space for them to become acclimatize to virtual reality, the headset, controls, and movement. It's important to lets subjects prepare themselves to start a test, and not just throw them into an evaluation scene.
  2. We can perform a number of inizalization steps, and communicate with the QExE host to collect some data, prior to the test start.

ConfigScene

TestManager.cs​

On the right hand side inspector, we see the component TestManager script. As described in the [paper] this is the client shadow TestManager to the QExE host TestManager.

_questionnaire Scene​

The _questionnaire scene is included as a virtual space for subjects to answer a specified questionnaire on a virtual interface. The graphics are simple, like the _config scene, but can always be adapted to suit your needs.

_evaluation Scenes​

Evaluation scenes fall under two categories:

  1. CGI evaluations scenes
  2. 360 video evaluation scenes

Take a look at the documentation for possibilities on creating your evaluation scene.

1. CGI Evaluation Scenes​

The CGI evaluation scenes are designed in Unity. These can include anything you like, that Unity can do - the skybox is your limit!

In Unity, scenes that have been designed, are saved as a .unity file, prefixed by the name of your scene e.g., my-amazing-scene.unity. If we want to use my-amazing-scene as an evaluation scene in our test, we simply specify unityScene_ID : my-amazing-scene in our config file in the Scenes array.

2. 360 Video Scenes​

If your visual content is a 360 video, then you can simply specify unityScene_ID : _videoPlayer in our config file. The _videoPlayer scene has a small video manager which will receive a URL from the QExE host.

CGI vs. Video?

With Unity being controlled through our QExE host, we can mix and match our scenes used in a single test for some interesting comparisons.