holoride Design Principles

As mentioned in the previous chapter, you should avoid creating discomfort, loss of orientation, etc. for the user. Therefore, the following holoride Design Principles apply.

World references

• Points of reference within the virtual world such as a sense of the horizon, a “ground” or “floor” that the user passes over as they travel, the virtual world helps with orientation and a sense of place.
• Placing landmark objects like trees, stones, or monoliths in the world will help users perceive movement and parallax.
• Make sure size references are consistent.

Motion Flow

• Never leave users in the dark void or let them lose orientation.
• Keep reference points clear and easy to perceive even subconsciously.
• Don’t add cognitive load by mixing spatial references.
• Small motion reference points are very important (e.g., dust particles).
• Don’t add cognitive load by mixing vertical and horizontal motion that is not clearly distinguishable from the vehicle’s motion.

Technical

• You should pay attention to performance and always aim to hit the headset’s target frame rate.
• Real-world travel and virtual content must not collide - don’t allow the user to pass through unexpected virtual objects.

Next Step: User Interaction