How is this possible?

[video=youtube;azC4OaP8Bq8]http://www.youtube.com/watch?v=azC4OaP8Bq8&NR=1[/video]

Can anyone explain to me how this works?

[COLOR="Magenta"]Video editing.

Those things are originally green.[/COLOR]

hm... there is a projecter on somehow, You can see the edge of it just as he walks off at 0:28. I thiought projection of a still image of the background, but that doesnt explain why there is no such projection without a white (?) surface

Nightclaw was on the right track.

Nightclaw was on the right track.

That explains how they made the objects and cloak "invisible" but not how they made the body "visible" Just that method would result in at least traces of the background image onto his body

What you dont see on screen is the R2 unit.

I'm thinking of how they do blue/green screens.

What you dont see on screen is the R2 unit.

What you don't see is Harry Potter's invisibility cloak.

Looks like things covered in green screen material. You can see the ball is like...dirty when he turns it.

The ball looks greenish (yay for new word?) So I say its a green screen

[COLOR="Magenta"]Video editing.

Those things are originally green.[/COLOR]

I'm thinking of how they do blue/green screens.

Looks like things covered in green screen material. You can see the ball is like...dirty when he turns it.

The ball looks greenish (yay for new word?) So I say its a green screen

These are all correct. Home made green screening doesnt always look too great, and im thinking the coloring of the background made the green'd items kind of faded.

This is a better example on it:
[video=youtube;Y0CghAKgY4E]http://www.youtube.com/watch?v=Y0CghAKgY4E[/video]

I remember reading about something like this, it had to do with bending light around an object and then connecting it around a point at the end. This would make an invisibility effect. Though, last time I remember hearing about this, I think scientist were only able to produce an object that can do this the size of a hair follicle or something. Dunno if they managed to make it bigger.


Edit - Oh, someone already posted about that. I remembered more about how this works than I thought. I think I wrote up my thoughts about this too somewhere, too lazy to check in my computer for it.

Looks interesting to do, but yet looks like too much work.
Fun to fool friends, dont you think.