On Thu, 24 Feb 2005 23:55:07 +0100, Lourens Veen <[EMAIL PROTECTED]> wrote: > On Wednesday 23 February 2005 15:46, Timothy Miller wrote: > > > > That reminds me... lots of work has been done on reciprocal. How > > about log2? We will need a fractional part. > > In the model, there are only four calls to the log2() function, and in all > cases the result is rounded or truncated. In case of truncation, we only need > the integer part, which comes from the exponent. In case of rounding, we > really want the integer part of log2(x) + 0.5, which is
In the case where it's truncated, we need the fractional part to interpolate between MIP levels. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
