How it Works
What is VR Comfort Calculator: FPS & Motion Sickness?
Step-by-Step Guide
1. Input FPS
Enter your average frames per second in VR.
2. Select Headset
Different headsets have different refresh rates (Hz).
3. Analyze
The tool determines the comfort level and risk.
Example
Input: 45 FPS, Quest 2
Result: Risk: High (Reprojection Active)
FAQ
What is Reprojection/ASW?
Techniques to fake frames when FPS drops (e.g., 45 FPS becomes 90Hz). It can cause visual artifacts.
Why do I feel sick?
Sensory mismatch. Your eyes see movement, but your ears don't feel it.
Is 120Hz better?
Yes, lower latency reduces motion sickness for sensitive users.
What affects VR FPS?
GPU power, resolution scale (Supersampling), and game optimization.
Does IPD matter?
Yes, incorrect Interpupillary Distance causes eye strain, not low FPS.
Conclusion
Maintaining a stable frame rate is critical in VR. Unlike flat screens where 30 FPS is playable, VR requires 72-90 FPS minimum to maintain 'presence' and prevent nausea. If your FPS is low, lower graphical settings before resolution.