[osg-users] Limit in size of VBOs?

Robert Osfield robert.osfield at gmail.com
Wed Sep 6 03:24:00 PDT 2017


Hi Antoine,

On 6 September 2017 at 11:04, Antoine Rennuit <antoinerennuit at hotmail.com>
wrote:

> From the call stack it looks like an OSG problem, no?
>

There isn't anything to indicate that it's an OSG specific problem, it's
crashing in an internal memcpy implementation, the OSG's compileBuffer()
doesn't use memcpy so it'll be the driver that is calling it.  So the crash
is the in the driver.

Anyways, I have updated my initial post with more info on the config
> tested, to give all readers more clues, and hopefully nail this bug down.
>

Not everyone uses the forum, so updating an old post doesn't help us using
the osg-users mailing list.  I've had a to follow the link to forum thread
to find the details.  In future could you just add the details into replies.

W.r.t the version you are using, could you try OSG-3.4.1 or master?  I
don't recall any bug fixes related to the GL buffers but there are various
fixes in both that are worth having.

You don't mention the hardware you are working on, what is main memory and
GPU memory?  Have you tried other hardware+drivers?

Also have you checked how much memory is availalbe in main memory when you
are running your application?

Robert.
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