In article <qqm### [at] goldachfmiuni-konstanzde> , Thomas Willhalm
<tho### [at] willhalmde>  wrote:

>> I'm trying to find the formula and explanation about normals for smooth
>> triangles. All info is helpful thanks.
>
> The comments in the source code is the only place I know, where the
> calculation of the normals is explained. It is written in triangle.c:

All (or at least most) computer graphics books are the place :-)  The books
you look for are in most libraries, the list of books is at the end of the
POV-Ray manual.


    Thorsten

Post a reply to this message