Terragen Landscapes: Settings: Atmosphere Controls: Light Decay / Red Simple haze simulates atmospheric dust, fog or water haze. It also produces a glow around the Sun and gives more 'thickness' to sunsets. At present the colour of 'Simple Haze' is also used for the clouds. Density This slider adjusts the 'thickness' of the haze or fog. Simple Haze = 0 Simple Haze = 20 (Default) Simple Haze = 60 Simple Haze = 85 Half-Height This slider changes the altitude (in metres) to which the fog reaches. Simple Haze: Denisty = 90% Simple Haze: Half-height = 100m Simple Haze: Denisty = 95% Simple Haze: Half-height = 50m Simple Haze: Denisty = 98% Simple Haze: Half-height = 20m Simple Haze: Denisty = 95% Simple Haze: Half-height = 200m