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

[Sebastian Messerschmidt]

Am 10.02.2016 um 10:43 schrieb Jordi Torres:
> 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.
Wow, I wasn't aware there is something like this. Great!

Cheers
Sebastian
>
> Cheers.
>
> 2016-02-09 22:56 GMT+01:00 Sebastian Messerschmidt 
> <sebastian.messerschmidt at gmx.de <mailto: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)
>         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.
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>
> -- 
> Jordi Torres
>
>
>
>
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