Try **edit:duplicate** to make another sphere.  Scale that one a little bigger so that the two spheres don't have polygons sharing the same space.  Parent it to the first sphere.

     For the first sphere, give it a gentle ambient, about 0.5 to 0.75 or so.  High ambient will both white the ball out (except for primary colors - yours is apparently pure red) and make it lose depth (note that yours appears to be a flat silhouette).

     The second (slightly larger) sphere can have a high ambient.  Try a fairly rich but not pure red.  This sphere will be your unseen IDL emitter.  The trick is to set the properties of this sphere to not cast shadows and to not be visible in camera. See attached screen shot.

     Render with IDL enabled.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5