This study introduces a novel Virtual Reality surfing simulation system that leverages a 6-DoF motion platform to replicate realistic surfboard dynamics and aquatic motion feedback. The platform integrates user-generated forces, such as paddling, to create an interactive experience, and we developed an algorithm to accurately map virtual surfboard kinematics to physical motion outputs on the motion platform. The system incorporates wave dynamics, wind effects, and motion feedback using Unity 3D and the Crest ocean rendering tool, creating a lifelike and immersive environment.
We tested our system with a preliminary study involving 17 participants, examining their ability to perceive different levels of acceleration and the impact of factors like body posture and ocean ripples. Our findings revealed that users could distinguish between acceleration intensities and that ocean ripples enhanced the perception of motion. Interestingly, body posture did not significantly affect how acceleration was perceived. Overall, the experience was rated as highly engaging and realistic, with almost negligible simulator sickness.
This work lays the foundation for diverse applications, including recreational VR, training simulations, and surf therapy. By making surfing experiences more accessible, this system offers a unique opportunity to extend the physical and psychological benefits of surfing to a broader audience.