Hi Riccardo, Setting up the camera's rendering backend on each frame will be expensive. Personally I'd just using multiple RTT Camera each with their own FBO and Textures associated with them. Using a Switch, Sequence or NodeMask's you can select which of the Camera you want to render to on each frame.
Robert. On 18 December 2012 17:24, Riccardo Corsi <riccardo.co...@kairos3d.it>wrote: > Hi All, > > in my application I need an FBO camera to render different frames into > different textures, because they will be used by an encoder and thus need > to persist for some time. > > I haven't found an easy way to copy the contents of a texture or of an FBO > into another texture. > So during the update traversal I change the camera texture attachment with > a new texture and call Renderer::SetCameraRequiresSetUp(true). > > Eveything works fine, but I'm wondering if there's a better/cleaner > approach to achieve the same result, as I don't know whether requesting > the camera setup every frame has a huge impact on perfomances. > > Thank you, > Ricky > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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