ConstReadonlyDEFAULT: 3The mode assumed when none is specified.
ReadonlyEXP: 2Exponential fog simulating physical light scattering.
ReadonlyEXP2: 3Squared exponential fog for a sharper, more dramatic drop-off.
ReadonlyLINEAR: 1Linear fog increasing between a near and far distance.
ReadonlyNONE: 0No fog applied.
Defines the mathematical mode used for calculating fog density.