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EZ_Fogfv(3)                     EZWGL Functions                    EZ_Fogfv(3)


NAME

       EZ_Fogfv - set fog parameters


SYNOPSIS

       #include <EZ.h>

       void EZ_Fogfv(int attr, float *pvalues)


ARGUMENTS

       attr Specifies which attribute is being updated.  Must be one of
       EZ_FOG_MODE, EZ_FOG_DENSITY, EZ_FOG_COLOR, EZ_FOG_INDEX, EZ_FOG_START,
       EZ_FOG_END.

       pvalues Specifies the values for the specified attr in an array of
       floats.


DESCRIPTION

       EZ_Fogfv sets fog parameters. Fog is enabled/disabled by
       EZ_Enable/EZ_Disable with argument EZ_FOG.

       If attr is EZ_FOG_MODE, pvalues should be an array of a single floating
       point number, which must be either EZ_LINEAR or EZ_EXP or EZ_EXP2. It
       selects one of the three fog models.

       If attr is EZ_FOG_COLOR, pvalues should be an array of 4 floats in
       [0.0, 1.0].

       If attr is EZ_FOG_DENSITY, pvalues should be an array of a single
       floating point number, which specifies the fog density.

       If attr is EZ_FOG_START,  pvalues should be an array of a single
       floating point number in range [0.0, 1.0].  It sets the starting
       position for fog calculations, with 0.0 represents the far clipping
       plane and 1.0 represents the near clipping plane.

       If attr is EZ_FOG_END,  pvalues should be an array of a single floating
       point number in range [0.0, 1.0]. It sets the ending position for fog
       calculations, with 0.0 represents the far clipping plane and 1.0
       represents the near clipping plane.


SEE ALSO

       EZ_Color3f(3), EZ_Normal3f(3), EZ_Vertex3f(3), EZ_Lightf(3),
       EZ_Materialf(3)

EZWGL                                                              EZ_Fogfv(3)

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