Virtual Camera Field of View Adjustment for VR Motion Sickness

The patent applies dynamics by making the virtual camera's movement characteristics adjustable rather than fixed. The system dynamically changes camera movement parameters (such as smoothing coefficients, prediction parameters, or constraint levels) based on the player object's movement state, game situation, or user preferences. This allows the camera to adapt its tracking behavior to balance between keeping the player in view and minimizing disorienting movements that cause motion sickness.

The patent changes physical parameters of the virtual camera system to resolve the contradiction. Specifically, it adjusts parameters such as camera movement speed, acceleration, damping coefficients, or field of view angle to optimize both player tracking and user comfort. By modifying these parameters based on game context or user feedback, the system achieves accurate player tracking without inducing motion sickness.

The patent applies preliminary anti-action by anticipating problematic camera movements before they occur. The system uses prediction algorithms to forecast player object movement and pre-adjusts camera parameters to prevent excessive backward movement, high-speed transitions, or curved motions that would cause VR sickness. This proactive approach counteracts the tendency of the camera to move in ways that discomfort users.

The patent implements beforehand cushioning by introducing damping or smoothing mechanisms that buffer sudden or extreme camera movements. Before the camera can move in a way that would cause discomfort, the system applies corrective forces or constraints that soften the movement trajectory. This cushioning effect prevents harsh camera transitions while still allowing the player object to remain visible.

The patent applies segmentation by separating the camera control into independent components: one handling HMD-synchronized directional changes and another handling player object tracking. This allows the system to maintain the stabilizing effect of HMD synchronization while simultaneously adjusting camera position or orientation to keep the player object in view. The segmented control resolves the conflict between presence and tracking accuracy.

The patent introduces an intermediary control mechanism that mediates between HMD movement input and virtual camera output. This intermediary layer processes both the user's head movements and the player object's position, then generates smoothed camera commands that satisfy both requirements. The mediator balances the competing demands of maintaining presence through HMD synchronization and tracking the player object accurately.