[osg-users] VAO Resource Leak in OSG 3.6.2

[Daniel Emminizer, Code 5773]

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:osg-users-bounces at lists.openscenegraph.org] On
> Behalf Of Robert Osfield
> Sent: Friday, August 03, 2018 4:11 AM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] 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
> <dan.emminizer at nrl.navy.mil> 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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