Hi Krzysztof, Not sure about PBO but FBO support in OSG works with multisampling. See
Camera::attach( BufferComponent buffer, osg::Texture* texture, unsigned int level, unsigned int face, bool mipMapGeneration, unsigned int multisampleSamples, unsigned int multisampleColorSamples) method. Cheers, Wojtek Lewandowski 2016-12-09 11:01 GMT+01:00 Krzysztof Rahn < krzysztof.rahn+openscenegr...@gmail.com>: > Hello everyone, > > I'm working on a company project that displays navigation maps for ships > with OpenSceneGraph. > The product we develop is a library that generates map images, so a > customer (developer) > can use our library to develop its own navigation system. > > This requires to generate a offscreen image and if possible an antialiased > one. > Unfortunately we can not generate a antialiased offscreen image. > > I already tried > > osg::DisplaySettings::instance()->setNumMultiSamples(4); > > and > > traits->samples = 4; > to create a osg::GraphicsContext > but this only works with a window generated from OpenSceneGraph or > with a embedded context (osgViewer::GraphicsWindowEmbedded()). > > I know we can enable "GL_LINE_SMOOTH". This is what we use at this moment > and it is > working with offscreen rendering but we really need multisampling for > better results (or any other form of anitaliasing). > > I created a small peace of C++ sourcecode on a Linux system that does > offscreen rendering (with a pbuffer) > into a tga image file (I think you also need OpenSceneGraph plugins for > that to work), > so you can roughly see how we use it at this moment (without > GL_LINE_SMOOTH to keep it simple). > > Of course I looked into the examples and this peace of code is based of > one of them. > But I could not spot anything in the examples that could help me. > I also searched in the forum on this topic but most threads about > offscreen rendering don't consider if multisampling is enabled. > > I would really appreciate if someone could help us with this small code in > the right direction > or make any suggestion if there is any other way to solve this if > OpenSceneGraph is not able to do this. > > A main.cpp and a CMakeLists.txt should be attached to this post. > > Thank you very much, > Kris > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=69644#69644 > > > > > Attachments: > http://forum.openscenegraph.org//files/cmakelists_664.txt > http://forum.openscenegraph.org//files/main_667.cpp > > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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