VRTP is a drop-in VR tunnelling solution for Unreal Engine 4.22+. Check out the Quickstart Guide or watch the tutorial video to dive right in!

What is Tunnelling?

Tunnelling is a technique to reduce sim-sickness in VR games, experiences and apps.

Artificial locomotion in VR - cars, spaceships, first-person "thumbstick" movement - causes sim-sickness in many users. This is a result of a mismatch between the motion they feel and the motion they see. Tunnelling is a highly effective method to reduce this for a large number of users.

It works by fading out peripheral vision. The subconscious uses peripheral vision heavily to interpret motion but the conscious brain largely ignores it - as such, reducing motion in the periphery combats the overall motion disparity users feel without significant information loss.

Additionally, the periphery can be replaced with static imagery to counteract motion even more strongly, "grounding" users in a static reference frame. This is called a "cage" as including a cage or grid maximises this effect.

Key Features

Multiple modes
- Color vignette
- Replace periphery with skybox/cubemap cage
- View VR scene through static "windows"
- View cage through world-space portals
Masking
- Exclude objects from the tunnelling effect
- e.g. static cockpit to help ground users
Fully configurable
- Tweak any settings in-editor for full control
Preset system
- Easily define multiple presets that users can switch between at runtime
- Bundled with many pre-generated presets to cover most common use cases
Blueprint nodes
- Every variable and function is exposed to Blueprints
- Allows you to modify all features on the fly with no additional coding
Full source code
- Hook into code or make custom edits
Supports Vive, Rift, PSVR, Oculus Go, Oculus Quest, Gear VR, Daydream and more
- Mobile-friendly version included
Compatible with Multipass and Single Pass Stereo
High performance