Qt OpenGL 创建跨平台可视化UI:科学可视化、医学成像、飞行模拟、流程建模、动画、游戏和视觉效果应用程序都需要大量使用高性能 2D 和 3D 图形。-Qt OpenGL to create cross-platform visualization UI: scientific visualization, medical imaging, flight simulation, process modeling, animation, games and visual effects

实现在一个屏幕上蝴蝶自由飞行的场景，很有参考价值，初学VC者必备。-Achieve a free-flying butterflies on the screen, the scene of great reference value, beginner VC were necessary.