文章目录一、osgViewer::ViewerBase::frame()1.osgViewer::View::init()2.osgViewer::Viewer::realize()，窗口和场景的“设置”工作part1GraphicsContextpart1.1通过阅读osgViewer::View::setUpViewInWindow()了解osg最基础的操作part2DisplaySettingspart3遍历