In article <opr25yj0lyp4ukzs@news.povray.org>,
 Phil Cook <phi### [at] nospamdeckingdealscouk> wrote:

> You caught me in the middle of replying to Severi; so I'll start again 
> here. Yep I guessed it had something to do with the light plane, but can't 
> figure out how it works. I'm producing a plane presumely based at location 
> perpendicular to the point_at so if my location was at 0 and point_at y 
> then then it would be equivalent a plane{0,y} I assume?

No. The point_at vector is a location, the plane vector is a direction 
(the plane normal). Thought the two are the same when the location is < 
0, 0, 0>, as in your example.


> I've just read what I wrote and worked it out: the plane I'm producing is 
> passing through the box; as the light is taken from the closet point of 
> the plane I'm getting the equivalent of an internal light source. Sheesh

Right.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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