method of simulating a translucent lampshade in poser is not intuitive.  e.g., translucence channel is light-emitting, like ambient.  as of the last release, there was no transmitted transparency (colour/pattern) feature.  if the lampshade itself is the light source, any pattern/weave will be blown out at values large enough to light the scene at 80% falloff per bounce.  if the lampshade is not the light source, but surrounds the sphere used as light source, then turning off "cast shadows" for the lampshade would look wrong.

not sure how to make it right.  how to preserve the lampshade pattern but also cause the lampshade to emit light.  one thing I haven't tried is whether, in an IDL-only render, a posersurface with "cast shadows" unchecked can allow an adjacent posersurface to act well as emitter.  if so, then it would be a two-lampshade solution.