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D3DMFOGMODE (Windows CE 5.0)

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This enumeration provides values that identify fog equations used in various render states. Both vertex and pixel fog modes support all of these fog equations.

typedef enum _D3DMFOGMODE {  D3DMFOG_NONE        = 0,  D3DMFOG_EXP         = 1,  D3DMFOG_EXP2        = 2,  D3DMFOG_LINEAR      = 3,  D3DMFOG_FORCE_ULONG = 0x7fffffff,} D3DMFOGMODE;

Elements

  • D3DMFOG_NONE
    Identifies that fogging modes are disabled.

  • D3DMFOG_EXP
    Identifies a fog model where the fog effect, F, intensifies according to the following equation.

    F = 1/e^(d*density)

    In this equation, e is the base of the natural logarithm, and d is distance. The value for density is the value of the D3DMRS_FOGDENSITY render state. For more information, see D3DMRENDERSTATETYPE.

  • D3DMFOG_EXP2
    Identifies a fog model where the fog effect, F, intensifies according to the following equation.

    F = 1/e^(d*density)2

  • D3DMFOG_LINEAR
    Identifies a fog model where the fog effect, F, intensifies linearly between the start and end points according to the following equation.

    F = (end - d)/(end - start)

    The values for start and end are the values of the D3DMRS_FOGSTART and D3DMRS_FOGEND render states.

  • D3DMFOG_FORCE_ULONG
    Forces the compiler to interpret the enumeration as a ULONG value. This value is not used directly in Direct3D Mobile programming.

Requirements

OS Versions: Windows CE 5.0 and later.
Header: D3dmtypes.h.

See Also

Direct3D Mobile Enumerations | D3DMRENDERSTATETYPE

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