这是一个3D编辑小软件，可以对三维模型进行各种观察，如旋转等，可以对模型的关节建立包围盒，可以简化模型-This is a small 3D editing software, you can observe a variety of three-dimensional model, such as rotation, the joint can be established on the model bounding box, you can simplify the model

Since objects stored in a spatial can be rather complex they are often approximated by simpler objects, and spatial indexes are then built on these approximations. The most commonly used approximation is the minimal bounding box: the smallest