Wasn't it nospam who wrote:

>       Been playing with isosurfaces in 3.5 and I am wondering
>if the attached image is a bug or not.  It happens using
>f_noise3d and with f_noise_generator using generator 0 or 1.
>Using f_noise_generator with a generator of 2 does not produce
>the problem.
>       .pov source posted on povray.scenes.text-files

I guess it's way too late to suggest that max_gradient ought to be made
mandatory for isosurfaces.

Or warn "Warning: isosurface has no max_gradient set. The isosurface may
contain holes! Set a correct max_gradient value to get a proper
rendering of the isosurface."

Or let the default value of max_gradient be changed to a value that's
likely to look OK for simple surfaces. I'd suggest a default value of
10.

As things currently stand we're likely to be seeing an *awful* lot of
occurrences of this question in the future.



-- 
Mike Williams
Gentleman of Leisure

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