Sharper Pixel Filters


The default filter for RenderMan-compatible renderers is a gaussian with a support of 2 pixel widths, which is somewhat blurry.  For a sharper image try a mitchell or lanczos filter with the recommended width of 4 or 6 respectively.  If your user interface doesn’t provide a way to select the pixel filter, it can be set with the following RIB statements:

PixelFilter "mitchell" 4 4


PixelFilter "lanczos" 6 6


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