Also do not forget that physics objects have to have a material, or they will bounce around wildly because they need the damping values etc. which are not set on objects without materials.

• 也不忘记那一个物理学物体必须有一个材料,或他们将会到处胡乱反弹，因为他们需要阻尼值设置等等没有材料的物体的不会产生反应。