Christopher James Huff wrote:
> It isn't really wrong, just sometimes causes problems that are hard to
> avoid. Setting y to a constant value makes it impossible to have
> overhangs or perfectly vertical surfaces, which you might want. Setting
> it to y makes "floaters" possible, not inevitable.

Yep. IMHO giving y a non-constant value results usually in much more
realistic-looking landscape. Multiplying y with a small enough constant
gets rid of most, if not all, floaters, while keeping the overhangs and 
staying overall "not-height_fieldy" ;). Something like <x,y/4,z> should 
work fine.

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