D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE enumeration

The interpolation mode the 3D perspective transform effect uses on the image. There are 5 scale modes that range in quality and speed.

Syntax


typedef enum D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE { 
  D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_NEAREST_NEIGHBOR     = 0,
  D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_LINEAR               = 1,
  D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_CUBIC                = 2,
  D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_MULTI_SAMPLE_LINEAR  = 3,
  D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_ANISOTROPIC          = 4
} D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE;

Constants

D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_NEAREST_NEIGHBOR

Samples the nearest single point and uses that. This mode uses less processing time, but outputs the lowest quality image.

D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_LINEAR

Uses a four point sample and linear interpolation. This mode uses more processing time than the nearest neighbor mode, but outputs a higher quality image.

D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_CUBIC

Uses a 16 sample cubic kernel for interpolation. This mode uses the most processing time, but outputs a higher quality image.

D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_MULTI_SAMPLE_LINEAR

Uses 4 linear samples within a single pixel for good edge anti-aliasing. This mode is good for scaling down by small amounts on images with few pixels.

D2D1_3DPERSPECTIVETRANSFORM_INTERPOLATION_MODE_ANISOTROPIC

Uses anisotropic filtering to sample a pattern according to the transformed shape of the bitmap.

Requirements

Header

D2d1effects.h

 

 

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