[osg-users] Possible bug in pragmatic shader composition and optimizers

[Sebastian Messerschmidt]

Tested trunk version, which fixes the problem.

Thanks a lot.

Cheer
Sebastian
> Hi Sebastian,
>
> On 14 July 2015 at 09:14, Sebastian Messerschmidt 
> <sebastian.messerschmidt at gmx.de 
> <mailto:sebastian.messerschmidt at gmx.de>> wrote:
>
>     Me again,
>
>     I've attached a minimal example which illustrates the problem.
>     It seems the combination
>     osgUtil::Optimizer::SHARE_DUPLICATE_STATE |
>     osgUtil::Optimizer::STATIC_OBJECT_DETECTION
>
>     causes the both geometries to be rendered as if the define was not
>     set.
>     If the optimizer is not run the geometries are rendered as expected.
>
>
> Thanks for the example, haven't tested it yet as earlier this morning 
> I created my own example to reproduce the bug.
>
> Since reproducing the bug I have tracked down the problem to the 
> osg::StateSet::compare() implementation that didn't have a code path 
> for comparing the StateSet::_defineList. Adding a code path for the 
> _defineList solved the bug for my example - it just ran 
> osgUtil::Optimizer::optimize(..).
>
> I have checked the bug fix into svn/trunk and the OSG-3.4 branch.  
> Could you test this out and let me know if it works for you?
>
> Cheers,
> Robert.
>
>
>
>
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