In article <3a68ccef@news.povray.org>, "Rune" <run### [at] inamecom> 
wrote:

> If that's how it would be I don't think "portal" would be a good name.

The camera feature is just part of the portal patch, there are several 
others. For example, ray direction defined by the normal of the surface 
hit, pseudo-perspective, orthographic, "teleportation" portals where the 
rays simply reappear somewhere else with the same origin and direction 
relative to each other (though not to the original rays)...the camera 
feature will be just one type.


> What I was thinking of was merely a "ray transform". When a ray hits 
> the portal pigment, the ray is transformed by a user-specified 
> transform, and continues from a new point. That way, when the camera 
> moves around, the view of the portal changes, and it would truly look 
> like a portal, and not just an image.

That is what the "teleportation" portal will be, it is the only one 
where direction of the ray on exit depends on the direction on entrance, 
though I will probably add other effects like this later.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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