VS2013을 깔았는데 Unity3D의 External Tools에 리스트가 뜨지 않길래 찾아보니 수동 등록 방법이 있다.
How to use Visual Studio 2013
- In Unity Editor go to Edit->Preferences->External Tools and In External Script Editor choose Browse from the drop down box.
- Browse to and select C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\devenv.exe.
- The External Script Editor should automatically show your selected editor as Visual Studio 2013.
- That’s it! It should just work from that point on.
Visual Studio fails to load for me!
Some people may have trouble loading VS2013 even after applying the correct settings above. The solution, for the time being, is to run Visual Studio 2013 beforehand and then the Unity Editor will successfully load its own project instance.
It works now but its not quite right
The above method isn't perfect and that is because Unity3D just doesn't properly generate the correct project files. If you don't like the limitations of the above method and you're able to afford it the best option right now is still buy the UnityVS plugin for Unity3D.
출처 : http://stackoverflow.com/questions/19889848/working-with-unity3d-and-visual-studio-2013