Am 16.12.2013 14:26, schrieb David Given:

> I run into the opposite problem; I render astronomical objects, and
> routinely run afoul of the maximum draw limit fudge factor where objects
> that are a long way away are ignored completely. (My moon pictures, for
> example, have to have the sun artifically close or it doesn't show up.)
>
> What's this limit actually for? I can see that the lower limit has some
> utility in order to cope sanely with rounding errors, but I can't think
> of any reason for an upper limit.

I guess the true reason for the existence of all these limits has been 
lost in the mists of time.

My theory is that the developers back then were not too familiar with 
the numeric limits of the IEEE floating point formats, nor with rounding 
error estimation & handling.

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