Thorsten Froehlich wrote:
> Sebastian H. wrote:
> 
>> Great, reducing the warning level helps. Thank you very much.
>> Now I redirect all message streams to separate files respectively.
>> But the "lower max_gradient" messages definitely end up in the fatal
>> message file. So are they warnings or fatals or may this even be a bug?
> 
> 
> This is indeed a bug in POV-Ray 3.6. It turns out that all messages that 
> report a filename/location _after_ parsing send their warnings to the 
> error message queue rather than the warning message queue, and 
> consequently they appear in the fatal/error stream rather than the 
> warning stream where they should be. This only concerns warning messages 
> reporting a filename/location _after_ parsing, which I think are (in 
> 3.6) only isosurface max_gradient warnings.
> 
>> There's another curiosity. The first fatal message in the fatal 
>> message file mentions a max_gradient of 10.850 found whereas the
>> max_gradient should have had been set to 13.000. But the greatest 
>> max_gradient value to be found set in the whole scene is 5.0.
> 
> 
> The max_gradient found depends on the pixels traced. The same is true 
> for the suggested max_gradient. It is only an estimate based on the 
> pixels traced, and usually not the real maximum gradient of the 
> isosurface. As such, it will be different if you trace different 
> subsections of the same isosurface.
> 
>     Thorsten

Ok. Thank you for your reply.

Sebastian

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