The player should be in control of all motion. Features such as head bob, slow motion, and axis rotation (twisting cameras) are jarring and increase discomfort for the player. If needed, they must be used sparingly and in short durations.
In Spider-Man Homecoming Virtual Reality Experience, CreateVR used a mixture of overlay and limited motion to recreate the hero's signature web-swinging move. Players select the anchor target and fire a web strand. Motion control then switches to a system where a roughly 3-second swinging sequence, complete with focus overlay, carries the player to their destination:
This topic has been widely discussed in depth across the media landscape. To learn more, check out a few of these links:
- Designing to Minimize Simulation Sickness in VR Games (highly recommended):
https://www.youtube.com/watch?v=2UF-7BVf1zs - VR Camera Movements Techniques:
https://uploadvr.com/introducing-limbo-a-vr-camera-movement-technique-by-the-developers-of-colosse/ - Simulator Sickness in Virtual Environments:
http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA295861 - 11 Ways to Prevent Motion Sickness!:
http://riftinfo.com/oculus-rift-motion-sickness-11-techniques-to-prevent-it
Next we will focus on constructing comfortable experiences for VR users.