Hi, I am trying to render the scene to an image without opening any windows. After doing a lot of searching and looking thru source code of OSG classes, I still get a completely white image.
In many places people say one should use the same code as there is in osgscreencapture which renders to a pbuffer is --pbuffer-only option is passed. But the fact is that osgscreencapture doesn't work itself! osgscreencapture.exe axes.osg --pbuffer-only 640 480 must produce an image without opening any windows. When running this on my laptop (WindowsXP home) i get the following error message: PixelBufferWin32::init(), Error: Couldn't find a suitable pixel format Pixel buffer has not been created successfully. Windows Error #2000: Win32WindowingSystem::OpenGLContext() - Unable to restore current OpenGL rendering context. Reason: Pixel format is invalid. after that the axes.osg file is just opened in a full-screen viwer window, no image file is created. When running this on my Desktop PC (WindowsXP Pro) i get the following error message: Pixel buffer has been created successfully. PixelBufferWin32::makeCurrentImplementation, wglMakeCurrent error: Die angeforderte Ressource wird bereits verwendet. (The requested resource is already being used) Error: OpenGL version test failed, requires valid graphics context. After that the program crashes and attempt to open Visual Studio debugger. On both machines OSG is correctly installed, e.g. i can easily open the osg files in viewer by double clicking. Do I at least call the osgscreenviewer correctly? ... Thank you! Cheers, Igor ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34307#34307 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
