Designing responsive, lag-free mobile touch interactions for 3D digital globes in QuakeViewer3D.
1. Singularity-Free Quaternion Rotation
Avoiding gimbal lock by converting 2D finger touch vectors directly into 3D unit quaternion rotations.
2. Physics-Based Inertial Spin Dampening
Calculating touch release velocities and applying exponential decay factors to produce natural globe inertia.
3. Non-Intrusive Floating HUD & PWA Readiness
Maximizing mobile viewport visibility with translucent glassmorphism panels, touch action docks, and PWA offline caching.