Visual comfort and ergonomics

Visual and physical comfort form the foundation of successful spatial interfaces. Extended use of spatial computing demands careful attention to natural human movement and viewing preferences.

Comfort fundamentals:

• Natural viewing zones: Content should live where eyes naturally focus — straight ahead and slightly below eye level. Extreme angles force uncomfortable head and neck positions, quickly leading to fatigue.
• Interaction spaces: Active elements need to respect arm comfort. Place frequent controls where users can reach them without extending arms or holding uncomfortable positions.
• Motion and stability: Content should remain stable in space. Sudden movements or floating elements can create discomfort and break immersion.

Keep primary content centered and stable. While spatial computing offers vast positioning freedom, resist placing critical elements at edges or extreme angles. Think of comfort as a core feature, not a constraint.