v3.5.beta.8.icl.win32, Pentium III, 512 MB, WinXp

I'm not good at judging which is at fault but it looks like noise (ie
noise_generator) isn't right.  And hf_gray_16 is still making for mosaic
appearances when used in isosurface function.

No one else seems to have reported this so I wonder if I'm the only one
seeing it or if the renders are expected to behave in this way.  That is to
say, should be mosaics perhaps caused by pixels and resolution.  Either way
the image output for hf_gray_16 still looks messed up or at least the noise
is to begin with.  There are plateau-like places and contour lines.

A pair of images were put into an example of what happens and will be posted
to p.b-t.b., along with the pov script I used.  Hopefully that will make my
message posting clearer.
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text{ttf"arial","bob h",.1,0pigment{rgb 9}translate<-1,-.2,3>}

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BTW, I realize I'm expecting the default way the isosurface is made to turn
out perfect.  That might not be plausible but just wanted to be sure the
readers here know of my intentions about the way the scene file renders,
which is to be without contour lines or plateaus or mosaics.

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