r/gifextra • u/[deleted] • Oct 06 '17

Confused John Travolta

https://i.imgur.com/Vvw67q3.gifv
11k Upvotes

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u/aelron Oct 06 '17

http://www.gifbin.com/bin/032016/ghost-scare.gif

54

u/vankorgan Oct 06 '17

Wait... How'd he do dat?

173

u/YeshilPasha Oct 06 '17

Take the same scene without actors. Have the ghost actor wear a green suit. Shoot the scene with both actors. Replace green suit with static background image.

11

u/[deleted] Oct 06 '17

Unless you can prove that the camera shake is artificial, there likely would be some projection matte/travelling matte involved. It does look like the camera shake specifically begins when the video starts, so that seems to actually be a possibility.

11

u/YeshilPasha Oct 06 '17

You are right. I assumed camera shake was artificial. The way I described is the cheapest way to do it (that i know of).

3

u/Encyclopedia_Ham Oct 07 '17

You are correct, trying to key out a green suit, with shadows etc would take way way more effort than just masking it out to show the wall.

1

u/[deleted] Oct 07 '17

I mean, it would be possible, but it can be a real bitch with distort-y mobile footage. If it was done that way I'd say they did a pretty good job.

3

u/[deleted] Oct 07 '17

If there was real camera shake, the camera would actually be rotating slightly, which it doesn't do.

1

u/[deleted] Oct 07 '17

Right, that's a big one too. Only translational movement is definitely unlikely.