Hi Robert, I was wondering, if I unref manually my images but also activate the texture pool with OSG_TEXTURE_POOL_SIZE, is there any risk that one of my images will be unloaded from the graphic card and then it will be impossible to load it again because it has been unref ?
Thanks ! On Wed, Apr 21, 2010 at 10:06 AM, Serge Lages <[email protected]> wrote: > OK thank you Robert, I'll unref manually my images. > > Cheers, > > > On Tue, Apr 20, 2010 at 8:16 PM, Robert Osfield > <[email protected]>wrote: > >> Hi Serge, >> >> Enable the unref image after apply in your case is a bit awkward as, >> as you have found, the mechanism assumes that all contexts will >> require the texture. >> >> Another way around the issue is to use the texture object pool to keep >> a cap on the memory usage on the driver and GPU side. Another route >> migt be to make areAllTextureObjectsLoaded() virtue or have a callback >> for it so you can customize the behavior. >> >> Robert. >> >> On Tue, Apr 20, 2010 at 6:21 PM, Serge Lages <[email protected]> >> wrote: >> > Hi Robert and all, >> > Another question related to multi-screen/multi-context applications >> (yes, >> > still one...). I am currently trying to save some memory on my >> application, >> > so I want some of my textures to be uploaded in the graphic card and >> release >> > it from the classic RAM, that's why I set setUnRefImageDataAfterApply to >> > true. >> > But looking at Texture2D.cpp, here is the conditions to unref an image : >> > state.getMaxTexturePoolSize()==0 && >> > _unrefImageDataAfterApply && >> > areAllTextureObjectsLoaded() && >> > image->getDataVariance()==STATIC >> > I am currently having troubles with the areAllTextureObjectsLoaded >> > condition, it checks if all the available contexts have uploaded the >> > texture. The problem here is that my texture is designed only for one of >> my >> > screens, so it's applied for only one context, so this condition is >> always >> > false and the image is never released. >> > Am I doing something wrong ? And is there any way to force my image to >> be >> > unref ? The only solution is a custom callback setting the image to NULL >> > after a first apply ? >> > Thanks ! >> > -- >> > Serge Lages >> > http://www.tharsis-software.com >> > >> > _______________________________________________ >> > osg-users mailing list >> > [email protected] >> > >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > >> > >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > > > > -- > Serge Lages > http://www.tharsis-software.com > -- Serge Lages http://www.tharsis-software.com
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