Bill Hails wrote:

> I have a reflective sphere, location LocSphere, radius RadSphere.
> 
> I have a camera, location LocCamera, looking at the sphere.
> 
> I have an object, location LocObject that is visible as a reflection in
> the sphere.
> 
> I need to know the point on the sphere that the reflection comes from
> (the point that the camera could look at if it wanted to look directly
> towards the reflection).
> 
> 

If I understand your problem correctly the soulution is equivalent to what 
if have done some time ago. See

  http://news.povray.org/povray.general/22853/
and
  http://news.povray.org/povray.text.scene-files/23166/

- Micha

-- 
POV-Ray Objects Collection: http://objects.povworld.org

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