Fix lag, black screen, and WebGL issues in the 3D Track Replay view.
Lag and stutter
Cause: GPU overload, large file, too many ghosts/overlays.
Fix:
- Press
Mto switch to 2D - Remove extra ghost laps
- Close overlay modals
- Lower replay speed for analysis
Black or missing 3D track
Cause: WebGL context lost, GPU driver issue, browser extension blocking WebGL.
Fix:
- Refresh page
- Update GPU drivers
- Disable browser extensions
- Try Chrome/Edge (recommended)
Free camera stuck
Press Esc to exit cinema/fullscreen modes. Click viewport to restore focus.
Hardware requirements
3D Replay needs a browser that can run WebGL graphics. Integrated GPUs work, but a dedicated graphics card usually feels smoother — especially with long sessions or many cars on track.
Desktop only
Complex charts and 3D replay are desktop optimized. Use 2D on low-power devices.