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D3DDDIARG_GENERATEMIPSUBLEVELS structure (d3dumddi.h)

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The D3DDDIARG_GENERATEMIPSUBLEVELS structure describes how to generate the sublevels of a MIP-map texture.

Syntax

typedef struct _D3DDDIARG_GENERATEMIPSUBLEVELS {
  [in] HANDLE                  hResource;
  [in] D3DDDITEXTUREFILTERTYPE Filter;
} D3DDDIARG_GENERATEMIPSUBLEVELS;

Members

[in] hResource

A handle to the MIP-map texture surface.

[in] Filter

A D3DDDITEXTUREFILTERTYPE-typed value that indicates the texture magnification or minification filter type that is used in generating the sublevels of the MIP-map texture. This member can be one of the following values.

Value Meaning
D3DDDITEXF_NONE MIP-map filtering is disabled.
D3DDDITEXF_POINT Point filtering. The texel with coordinates that are nearest to the required pixel value is used. The texture filter to be used between MIP-map levels is nearest-point MIP-map filtering.
D3DDDITEXF_LINEAR Bilinear-interpolation filtering. A weighted average of a 2x2 area of texels that surround the required pixel is used. The texture filter to use between MIP-map levels is trilinear MIP-map interpolation.
D3DDDITEXF_ANISOTROPIC Anisotropic texture filtering. This filtering compensates for distortion that is caused by the difference in angle between the texture polygon and the plane of the screen.
D3DDDITEXF_PYRAMIDALQUAD Four-sample tent filtering.

Requirements

Requirement Value
Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Header d3dumddi.h (include D3dumddi.h)

See also

GenerateMipSubLevels