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Re: Ray->Sphere intersection

Brian Greenstone wrote:

> Does anyone have some good, efficient code for doing Ray-Sphere intersection
> tests?

We use the algorithm from "Real Time Rendering" for Quesa. You can get the
code from E3Ray3D_IntersectSphere, at the bottom of E3Math.c.

<http://www.quesa.org/info/download.html>
<http://www.realtimerendering.com/>

I see there's a new edition of the book out - if anyone has seen it, is it
worth getting over the original? There seem to be an extra 400 pages,
covering stuff like NPR, which looks quite interesting.


-dair
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