In article <3d23afbc@news.povray.org>, Warp <war### [at] tagpovrayorg> 
wrote:

> Christopher James Huff <chr### [at] maccom> wrote:
> > I haven't really been following this conversation, so I might be missing 
> > something, but wouldn't this be a better way?
> 
> > #macro RayIntersectsTriangle(pRay, vRay, pA, pB, pC)
> >     #local iNorm = < 0, 0, 0>;
> >     #local tmpTri = triangle {pA, pB, pC}
> >     #local Scrap = trace(tmpTri, pRay, vRay, iNorm);
> >     (iNorm.x != 0 | iNorm.y != 0 | iNorm.z != 0)
> > #end
> 
>   The whole idea was to code that trace() function in C++.

Ah...maybe these links would be of help:

http://www.2tothex.com/raytracing/
http://www.faqs.org/faqs/graphics/algorithms-faq/
http://www.cfxweb.net/files/Sources/Effects/Raytrace/
http://www.3dspot.com/raytracing.html

-- 
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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