[osg-users] dumptruck.osg and GL ES 2.0

[Jens Georg]

Hi Jordi,

unfortunately the gles pseudoloader seems to be OSG 3.4 so I would need
some time to check whether we can easily backport that to our 3.2.

As for disabling the optimizer, that didn't help. I can't attach a stats
screenshot currently because I have to get them working again beforehand
(issue on our side)

Thanks so far :)

> Hi Jens,
> 
> Maybe you can try the gles pseudoloader. It optimizes models to be
> compatible with gles. So when you read a model add ".gles" at the end
> to use the pseudoloader.
> 
> Cheers.
> 
> 2016-02-09 22:56 GMT+01:00 Sebastian Messerschmidt
> <sebastian.messerschmidt at gmx.de>:
> 
>> Hi Jens,
>> 
>> Can you disable the optimizer (there is some environment variable
>> to disable it globally, but I don't recall the exact name) and see
>> if the issue remains? Can you provide a stats-screenshot so we can
>> see what might be going on?
>> 
>> Cheers
>> Sebastian
>> 
>>> Hi,
>>> 
>>> I was trying to build a demo scene with our OSG (3.2 branch until
>>> commit 44cf6b92d2) (OpenGL ES 2.0) and I noticed that when I load
>>> dumptruck.osg (from
>>> 
>> 
> https://raw.githubusercontent.com/openscenegraph/osg-data/master/dumptruck.osg
>>> [1]) into osgviewer, the GL drawing operations seem to generate a
>>> heack of a lot of calls to glDrawArrays (GL_TRIANGLE_STRIP,
>>> some_offset, 3), so rendering each trianlge separately, causing a
>>> huge load on the system.
>>> 
>>> Is that expected to happen or is there something odd with our
>>> configuration or is that a bug?
>>> 
>>> KR, Jens.
>>> _______________________________________________
>>> osg-users mailing list
>>> osg-users at lists.openscenegraph.org
>>> 
>> 
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>> [2]
>> 
>> _______________________________________________
>> osg-users mailing list
>> osg-users at lists.openscenegraph.org
>> 
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>> [2]
> 
> --
> 
> Jordi Torres
> 
> 
> 
> Links:
> ------
> [1]
> https://raw.githubusercontent.com/openscenegraph/osg-data/master/dumptruck.osg
> [2] 
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> 
> _______________________________________________
> osg-users mailing list
> osg-users at lists.openscenegraph.org
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org