/usr/share/doc/raster3d/examples/clip.r3d is in raster3d-doc 3.0-3-2.
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1 2 3 4 5 6 7 | # set clipping plane
#16
#FRONTCLIP 2.
8
-1.0 -1.0 1.0 1.0 1.0 0.0 0 1 0 2
FRONTCLIP 2.
BACKFACE 0.6 0.4 0.6 0 0
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