Since version
0.39, BeamNG uses a Gran Turismo 7 tone mapping, replacing the previous ACES tone mapper. This updated system is designed to better preserve physically based lighting values while providing more consistent and higher quality results across both SDR and HDR displays.
Why Gran Turismo 7 tone mapping
Traditional tone mapping operators often introduce issues such as:
- Clipped or washed-out highlights
- Loss of contrast in bright scenes
- Color shifting under high intensity
- Color difference between HDR and SDR output
The GT7 tone mapper avoids these problems by:
- Working in perceptual color spaces (ICtCp or Jzazbz)
- Separating luminance from chroma to preserve color fidelity
- Applying a smooth highlight “shoulder” for natural brightness rolloff
- Blending per channel and perceptual results for stability