Tom & Lu Melly <all### [at] tomandlucouk> wrote:
> Well, I was kind of thinking that an infinite plane would require an
> infinite number of rays to trace since there would be an infinite number of
> places that a ray could intersect

  A ray can intersect a plane only in one place. There's no way for a ray
to intersect a plane in more than one place (unless it bends somehow). :)

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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