使用cad制作，很常用的楼房建筑cad，可以直接用此cad，或者在基础上稍作修改即可。-Using cad production, a very commonly used in construction of buildings cad, you can directly use this cad, or on the basis of minor modifications.

Ocean waves simulator. Can be use in Solid Works , Inventor or any 3d CAD with physics ability.