In article <3d525862@news.povray.org>, Warp <war### [at] tagpovrayorg> 
wrote:

>   POV-Ray uses floats for meshes (which gives me cold shivers... but on the
> other hand it saves a huge amount of memory). I haven't checked, but it is
> very possible that it also uses floats for heightfields.

Only for storage, the intersection calculations use double precision. 
Single precision isn't a problem for the vertex information. The height 
field code looks like it uses double precision as well, I didn't see 
anything else but integers.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/

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