Table of Contents

VR Cave support

VIROO Applications are VR and Desktop compatible. To add CAVE support, once you have completed the Creating a VIROO Application steps, you will need to follow this article.

To add support for CAVE, VIROO Studio packages containing the necessary functionality must be added:

  • com.viroo.tracking.dtrack and com.viroo.sceneloader.dtrack: add DTrack support.
  • com.viroo.multidisplay and com.viroo.sceneloader.multidisplay: support for rendering from a user's perspective in CAVE.
  • com.viroo.stereorender: support for native stereoscopic rendering.

After adding these packages, the VIROO Main scene must be modified to add the prefabs corresponding to these packages. The next sections explain how to add the packages and how to add them to the VIROO Main scene.

Add new scopes to OpenUPM scoped registry

To add new packages needed for CAVE support, you need to add new scopes to OpenUPM scoped registry. You can do it from the Unity Editor or by editing the manifest.json.

Using the Unity Editor

Open Edit -> Project Settings -> Package Manager and follow this steps:

  • In the Scoped Registries section select OpenUPM (package.openupm.com).
  • In the Scopes lists, press + twice and add:
    • com.ar-tracking
    • jp.keijiro

Editing manifest.json file

You can find the project manifest file, called manifest.json, in the Packages folder under the root folder of your Unity project.

Find the scopedRegistries block. Locate the OpenUpm and add com.ar-tracking and jp.keijiro to the scopes list:

{
  "dependencies": {
    /* ... your dependencies ... */
  },
  "scopedRegistries": [
    /* ... other scoped registries ... */
    {
      "name": "OpenUPM",
      "url": "https://package.openupm.com",
      "scopes": [
        "com.cysharp.unitask",
        "com.openupm",
        "com.ar-tracking",
        "jp.keijiro"
      ]
    }
  ]
}

Install VR CAVE packages

The following Viroo packages should be added to the project:

  • com.viroo.tracking.dtrack
  • com.viroo.sceneloader.dtrack
  • com.viroo.multidisplay
  • com.viroo.sceneloader.multidisplay
  • com.viroo.stereorender

The latest package version for each of the packages can be found in the Viroo feed.

It's possible to add the necessary packages in Unity in two different ways. Choose the one you prefer from the following.

Using the Unity Editor

Open Window -> Package Manager.

To install the needed packages:

  1. Click the add (+) button in the status bar.
  2. Select Add package by name from the add menu.
  3. Enter the package name, from the previous list, in the name field.
  4. Enter the exact version (for example: 1.0.0) in the version field.
  5. Click Add.

This process must be repeated for each of the packages listed.

Editing manifest.json file

Follow the steps below:

  1. Open manifest.json file.
  2. Add the references to the VR CAVE packages in the dependencies section.
{
  "dependencies": {
    /* ... your other dependencies ... */
    "com.viroo.multidisplay": "1.0.0", /* Change 1.0.0 to the correct version */
    "com.viroo.stereorender": "1.0.0", /* Change 1.0.0 to the correct version */
    "com.viroo.sceneloader.dtrack": "1.0.0", /* Change 1.0.0 to the correct version */
    "com.viroo.sceneloader.multidisplay": "1.0.0", /* Change 1.0.0 to the correct version */
    "com.viroo.tracking.dtrack": "1.0.0", /* Change 1.0.0 to the correct version */
  },
},
  1. Return to Unity Editor to download the packages.

Add VR CAVE prefabs to main VIROO scene

Locate the main scene for the project (created from the VIROO Main scene template).

To it, the following prefabs should be added. To find these prefabs, you can use the Search function of the Unity Project tab, selecting the In packages option.

  • VirooDTrack
  • VirooMultiDisplay
  • VirooSceneLoaderDTrack
  • VirooSceneLoaderMultiDisplay
  • VirooStereoRender

Save the scene.