cadman wrote:

You might try using looks_like along with the lamp shade. An example of
it's usage I copy and pasted here would be -

  #declare Lightbulb =
  union{
  merge{
  sphere{<0,0,0>,1}
  cylinder{<0,0,1>,<0,0,0>,1 scale<.35,0.35,1>translate .5*z}
  texture{pigment{rgb<1,1,1>}finish{ambient .8 diffuse .6}}}
  cylinder{<0,0,1>,<0,0,0>,1 scale<.4,.4,.5>texture{Brass_Texture}
  translate 1.5*z}rotate -90*x scale .5}

  light_source{<0,0,0>rgb 1 looks_like{Lightbulb}}

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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