In article <366b1ef6.0@news.povray.org> , ver### [at] aolcom (=Bob) wrote:

>I don't know what's going on there but I tried putting a global_settings 
>{max_trace_level 20}, out of habit, into the script and got a same-surface 
>looking effect at the center of the cross. No other obvious changes. Then 
>--another strange thing-- I tried 2 instead of 20 and no change *back* to the 
>first look (difference?), even tried to comment it out; no return to previous 
>state. So I shut POV off, restarted it, ran the scene again (global_settings 
>still commented out) and it then returned to the first example: center 
>removed.

Yes, this is a know problem of POV-Ray, max_trace_level is stored in a global
variable, and it is no (always?) updated/installized except at startup. This bug only
exists for the GUI versions of POV-Ray (Win and Mac) as they are not terminated  and
restarted for each render.


     Thorsten


For all who want to know, the value of max_trace_level is stored in the global
Max_Trace_Level in render.c.

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