Visibility culling is a fundamental problem in computer graphics as well as a key technique in virtual realityengine.
可见性裁减是计算机图形学的基本问题，也是虚拟现实引擎中的一个关键技术。
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Path planning is also one key aspect in virtual realityengine. One of its application automatic navigation of virtual camera is a useful technique, and worth studying.
路径规划也是虚拟现实引擎里一个重点，其中虚拟场景中的摄像机自动导航是一个具有实用价值的研究方向。
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The teams recommended a variety of improvements in lightweight composite structures, heat- and stress-tolerant engine materials, and aerodynamic modeling that can help bring their ideas to reality.