[osg-users] out of memory

[Robert Osfield]

Hi Renato,

Potentially you could covert the imagery in the database to OpenGL
compressed format to reduce the memory size.  osgconv utility can be
used to covert a loaded database to compressed using:

  osgconv --compressed originaldatabase.originalextension newdatabase.osgb

You can also write your own compressors to pre-process the data, have
a look at the osgconv sources to see how it does it.

Robert.


On 30 April 2015 at 10:59, Renato Semadeni <rsemadeni at flyelite.ch> wrote:
> Hi there,
>
> I'm supporting an image generator using osg as library for handling the 3d objects. Our artist passed me 3 objects of the total size of 1.5Gb. Our image generator reads in the landscape database and additionally user defined 3d objects. With our other 3d objects it runs without any problems.
>
> We load every object with:
>
>
> Code:
> osg::ref_ptr < osg::Node > _osgNode = osgDB::readNodeFiles( fileList) ;
>
> osgUtil::Optimizer optimizer;
> optimizer.optimize(_osgNode.get());
>
> _osgNode->setStateSet( new osg::StateSet ) ;
>
> ...
>
>
>
>
> As I understand, we load all models into memory, and due to that our image generator is an 32bit process running on Windows, it doesn't get more than 2Gb of memory. With our landscape database and those three 3d objects, the process exceeds the limits of Windows.
>
> Does any body has a proposal, how I could change this, except of transporting it to 64bit? Isn't it possible to pass it to the GPU's memory?
>
> Thanks a lot for every help!
>
> Cheers,
> Renato[/code]
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=63581#63581
>
>
>
>
>
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