Hello,
  Nothing brand new here, but lately I've been experimenting with simulating
translucent surfaces using double illuminated objects, especially for things
like  lampshades and light covers and such.  The image here is just a test of
concept.  The thing I find interesting is that the change in illumination
across the sphere is a result of varying the diffuse value of the finish.  The
higher the diffuse the brighter the surface, and the more light emitted (via
radiosity).  This makes sense based on how diffuse and double_illuminate work,
but it also seems to be an interesting way to simulate variation in light
transmittance of a translucent surface.

-The Mildly Infamous Blue Herring

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