Ummm. The error I was running into was terminal stupidity on my part. Sincere apologies for time wasted on the part of all who responded.
 
The error was that I had thought Light sens material was not in the default materials menu so I imported it from the library and then tweaked the imported edition. Of course RS got as far as the one that was already in the menu ... etc.
 
Apart from that, the sun is shining, the birds is singing ...
 
Neil Cooke
----- Original Message -----
From: Neil Cooke
Sent: Wednesday, May 17, 2006 11:00 AM
Subject: Light Sensitivity - going wrong

Hi List,
 
What am I doing wrong please ....
 
1. create sphere - analytic.
 
2. create light point
 
3. drop LightSensitivity material from the library into the light point.
 
4. adjust sphere properties .... color/set surface properties attribute to light sensitivity and change the value from 0.000 to 1.000
 
5. Ray trace ... no change (as compared to a control set also created but not mentioned above.)
 
6. Re-open properties for sphere and find the light sensitivity option in surface attributes has been re-set to color.
 
..... so, not only no change but the values are being over-written.
 
???
 
Thanks
 
Neil Cooke

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