[osg-users] Error when using osgShadow

Sebastian Messerschmidt sebastian.messerschmidt at gmx.de
Mon Jun 29 07:00:43 PDT 2015

Hi David,

Usually there is not much value in a "floating point exception". I guess 
there is an NaN or division by zero, which I observed for empty or 
degenerate scene bounds.
I advise to compile with floating point exceptions disabled, as osg will 
print out errors to the console in those cases anyways (check your 
compiler flags) and osg is not using structured exceptions ...
If you are using Visual Studio you can enable catching exceptions from 
the debugger to see where they are thrown and can provide a call stack, 
so I guess something like this is possible with gdb too.

Also: are the osgshadow examples working?
> Hi Robert,
> thanks for your answer!
> What do you mean by tracking with a debugger? I attached to my previous message the output obtained with in the osg debug mode...
> Concerning the other info, I am running my code on linux, with 2.8.1 osg version.
> The code I attached is working if I am removing the ShadowMap technique and is showing the scene without shadow.
> I also tried to replace ShadowMap by other technique but: whether it's running without showing any shadow (for example using ShadowTexture,ShadowTexture techniques) or it's just not working (SoftShadowMap, ParallelSplitShadowMap) and the same "floating point exception" error is obtained.
> Thank you in advance!
> Cheers,
> david
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=64211#64211
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