2008

Filter group
Filter type Determines how multiple samples are combined into a single
pixel value. Can be set to Box, Gauss, Triangle, Mitchell, or Lanczos.
Default=Box.
TIP For most scenes the Mitchell filter gives the best results.
Box filter: Sums all samples in the filter area with equal weight. This is the
quickest sampling method.
Gauss filter: Weights the samples using a Gauss (bell) curve centered on
the pixel.
Triangle filter: Weights the samples using a pyramid centered on the pixel.
Mitchell filter: Weights the samples using a curve (steeper than Gauss)
centered on the pixel.
Lanczos filter: Weights the samples using a curve (steeper than Gauss)
centered on the pixel, diminishing the effect of samples at the edge of the
filter area.
Width and Height Specify the size of the filtered area. Increasing the value
of Width and Height can soften the image, however it will increase rendering
time.
Default=Depends on the Filter type you choose:
Box filter: Width=1.0, Height=1.0
Gauss filter: Width=3.0, Height=3.0
Triangle filter: Width=2.0, Height=2.0
Mitchell filter: Width=4.0, Height=4.0
Lanczos filter: Width=4.0, Height=4.0
Spatial Contrast group
This control sets the contrast value used as thresholds to control sampling.
Spatial contrast applies to each still image.
If neighboring samples in a frame differ by more than this color, the mental
ray renderer does recursive supersampling (that is, more than one sample per
pixel), up to the depth specified by the Maximum samples per pixel on page
mental ray Renderer | 6085