I got it the first time I ever smoked, and a couple times a few months ago, and I also got it last night because I was drunk as well. If you want to get the frame vision, either smoke some good hash (hash seems to give the frame vision more often than herb), or smoke a lot of good weed (more than you normally would). If that doesn't do it, get pretty drunk and then smoke up. Honestly, in my eyes, the frame vision isn't too fun. That's the point where I say, "man, I smoked too much." Then again, you're only that high for a little while. The frame vision is short-lived. But I know some people who try very very hard to reach that point again.

You'll know it when/if you get it. It's hard to explain, but you'll know.