这个例子展示了Newton物理引擎和Direct3D中怎样使用基本的几何形状(球，圆柱，箱子)，注意这个例子中只使用了球，圆柱，箱子等几何形状，其他的Newton几何形状还包含圆锥、胶囊、斜面圆柱等。-This sample shows how to use some of the basic geometry in Newton (sphere, cylinder, box). Note that while only the sphere, cylinder, and box are used in this sample, other Newton basic geometry includes cone, capsule, and a chamfer cylinder.