4.2.3 Fog

MGL command: fog val [dz=0.25]

Method on mglGraph: void Fog (float d, float dz=0.25)

C function: void mgl_set_fog (HMGL gr, float d, float dz)

Function imitate a fog in the plot. Fog start from relative distance dz from view point and its density growths exponentially in depth. So that the fog influence is determined by law ~ 1-exp(-d*z). Here z is normalized to 1 depth of the plot. If value d=0 then the fog is absent. Note, that fog was applied at stage of image creation, not at stage of drawing. See section Adding fog, for sample code and picture.

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