[osg-users] VAO Resource Leak in OSG 3.6.2

[Julien Valentin]

A big old leak in memory too
Geometry destructor is never called for dynamically added!?


Daniel Emminizer, Code... wrote:
> Hi Robert,
> 
> No problem.  I'm out of "panic" mode since I found a work-around with the PR, so next week is just fine.
> 
> Thanks for the PR feedback.  Unfortunately I'm unavailable all next week.  I'm happy to retest any fix you have once I'm back.
> 
> I hope Vulkan work is going well.  I'm watching the mailing list with anticipation.
> 
> - Dan 
> 
> 
> 
> > -----Original Message-----
> > From: osg-users [mailto:] On
> > Behalf Of Robert Osfield
> > Sent: Friday, August 03, 2018 4:11 AM
> > To: OpenSceneGraph Users
> > Subject: Re:  VAO Resource Leak in OSG 3.6.2
> > 
> > Hi Dan,
> > 
> > I'll be focusing on Vulkan work today so won't look into this right
> > away.  Next week I'll set aside a day for OSG maintenance and
> > hopefully will be able to look at this then.
> > 
> > Robert.
> > On Thu, 2 Aug 2018 at 15:49, Daniel Emminizer, Code 5773
> > <> wrote:
> > 
> > > 
> > > Hi Robert,
> > > 
> > > I think I've found a resource leak in OSG 3.6.2.  Attached is a contrived
> > > 
> > sample application that demonstrates the behavior.
> > 
> > > 
> > > What appears to be happening is that the VAO is being created with
> > > 
> > glGenVertexArrays(), but does not get deleted with glDeleteVertexArrays().
> > Using the open source API Trace, I can see that on exit it does destroy some
> > VAO, but not (nearly) all of them.
> > 
> > > 
> > > I'm investigating now for a solution, but I'm not very familiar with this part
> > > 
> > of OSG.  I'm passing this along now in case you see an obvious solution.
> > Thanks,
> > 
> > > 
> > > - Dan
> > > 
> > > 
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> > > 
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> > > 
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