Try this,

#declare ex=0
#declare why=0
#declare zee=-10

light_source {
                    <ex,why,zee>
                    White
                    rotate why*360*clock
}
camera {
                    location <ex,why*1,zee>
                    look_at 0
                    rotate why*360*clock
}


I hope that helps
C.J. - POV User
www.crosswinds.net/~povstudy


rsibbald <rsi### [at] julianuwoca> wrote in message
news:394### [at] julianuwoca...
> perhaps I should clarify....
>
>    I would like to have a line similar to the following...
>
> #declare light_source = camera_location + <0,1,0>
>
>   yet, I can't seem to manage.  Any ideas???
>

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