You need a HTC Vive set and the SteamVR plugin to use this asset.
This plugin is used to fly / levitate around in your scene. You can simply pull the trigger and a force will be applied to your position.(see video)
Concept by Kevin Mack.
Trees are made by me, they are included in the project, you are free to use them as you like.
This asset was also made possible by the contribution of Valve on Vision Summit 2016.