// clear sky and fog color adjusted for sunset effects
SGVec4f _adj_fog_color;
SGVec4f _adj_sky_color;
+ float _saturation;
double _dt_total;
inline const SGVec4f& adj_fog_color () const { return _adj_fog_color; }
inline const SGVec4f& adj_sky_color () const { return _adj_sky_color; }
-
// Sun related functions
inline double get_sun_angle () const { return _sun_angle; }