Hi? Could you sign with a name to make it easier for other to know how to address you :-)
On 4 March 2014 12:17, ttaw <[email protected]> wrote: > hello, everyone. > I am an osg learner in China.Recently, when I read the source code of > osg::Impostor class, something about multi-threading confused me a lot.That > is, in the case of CULL_VISITOR of osg::Impostor::traverse, no mutex is > used to protect the function createImpostorSprite which changes the sprite > list. Doesn't it result in a potential crash when multi-cameras are active > and CullThreadPerCameraDrawThreadPerContext model is used? > Any discussion is welcome.Thanks. > Internally osgSim::Impostor uses a buffer with one entry per cull visitor so that each cull thread doesn't overlap and contend on the same data. Robert.
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