Subsections

- Fog

## Atmospheric effects

Tachyon currently only implements one atmospheric effect, simple distance-based fog.

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Fog

Tachyon provides a simple distance-based fog effect intended to provide functionality similar to that found in OpenGL, for compatibility with software that requires an OpenGL-like fog implementation. Much like OpenGL, Tachyon provides linear, exponential, and exponential-squared fog.

      FOG
        LINEAR START 0.0  END 50.0  DENSITY 1.0  COLOR 1.0 1.0 1.0

      FOG
        EXP START 0.0  END 50.0  DENSITY 1.0  COLOR 1.0 1.0 1.0

      FOG
        EXP2 START 0.0  END 50.0  DENSITY 1.0  COLOR 1.0 1.0 1.0