Hi Terry, I use osg::Camera objects to render FBOs that are the same size as the window. When the window is resized, I clear the rendering cache of the camera and reset the texture size:
texture->setTextureSize(w,h); texture->dirtyTextureObject(); camera->setRenderingCache(0); This has worked fine for me for a while now. What version of OSG are you using? Cheers, Farshid On Fri, Aug 2, 2013 at 3:51 PM, Terry Welsh <mogu...@gmail.com> wrote: > I render to an FBO texture attachment the same size as my window. But > when I expand the window and try to resize the texture to match it, I > end up rendering to a rectangle the size of my original window in the > lower left corner of the now-larger texture. It seems like a lot of > people would have tried this by now. Any advice from someone who is > doing it successfully? > > I have tried this code that has been recommended in a few emails, but no > luck. > > mColorTex->setTextureSize(w, h); > mColorTex->dirtyTextureObject(); > mColorTex->dirtyTextureParameters(); > > mCamera->setViewport(x, y, w, h); > mCompositeCamera->setViewport(x, y, w, h); > > mMainSceneView->getRenderStage()->setFrameBufferObject(NULL); > mMainSceneView->getRenderStage()->setCameraRequiresSetUp(true); > > This seems to be the exact same problem as this unanswered email from > last year. There have been similar threads from time to time as well. > > http://lists.openscenegraph.org/htdig.cgi/osg-users-openscenegraph.org/2012-March/057126.html > -- > Terry Welsh > www.reallyslick.com > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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