It would be nice if there were a button to stop a ray trace, for when it is started accidentally, or if something is wrong and it is taking too long.


Is there one?




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Anthony Duff
Postdoctoral Fellow
School of Molecular and Microbial Biosciences
Biochemistry Building, G08
University of Sydney, NSW 2006 Australia
Phone. 61-2-9351-7817   Fax. 61-2-9351-4726
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