Nathan Kopp wrote:
  > Try this:
> 
>   image_map {
>     ...
>     transmit all 0.5
>   }
> 
>   finish {
>     ambient 2.0
>     refraction 2.0
>   }
> 
> The "transmit 0.5" and "refraction 2.0" work together to give you 100% 
> transmittance.  The remaining 50% (left over from the transmit) combines 
> with "ambient 2.0" to give 100% illumination.

This should be easy to test with my current setup. I will give it a whirl.

Sam

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