"Kenneth" <kdw### [at] earthlinknet> wrote:

> Some facts from experimenting:

> 4) camera re-positioning has no effect

Sorry if I confused anybody.  I didn't mean to imply that the camera can be
moved ANYWHERE to still show the effect; just nudging it a bit here and
there ( to see if that made a difference, which it doesn't.) The effect is
only visible when the media spheres are positioned in-between the
camera and the light cone.

Ken

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