As an AR designer, you would want to create safety patterns that feel native to the actual experience in your application. An education app with holographic objects needs a different approach from a discovery application that overlays text annotations over one's view. It is up to the designers and developers of individual applications to decide how they want to leverage the infrastructure and principles to incorporate patterns that fit into their product. We have noticed several approaches that work across different types of AR experiences.
These approaches can be mixed and matched for increased effectiveness. For example, the Boundary Marker approach and the Dissolution approach can be combined, as shown in Case Study 1.
Clearly demarcate the edge of a user’s safe zone. The marker can take different forms depending on what works best within your AR application: a low fence, a grid wall, or a translucent plane are good base patterns.
See Case Study 1.
Suspending and hiding the AR overlay could be the clearest way to reignite user alertness. The suspension could happen to varying degrees: total hiding, fading, or just freezing of activity.
See Case Study 3.
If your AR application focuses on a mobile character, make the character responsive to the boundaries of hazard areas e.g. refuse to enter street crossing on red light.
See Case Study 2.
If there is a narrative to your AR experience, the application could trigger activity in the opposite direction of the hazard area. This could steer users naturally away from risks.