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Meteor strike problems [ANSWER]

Posted: Wed, 7th May 2008, 3:21am

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Drmeow

Force: 605 | Joined: 30th Jun 2007 | Posts: 2

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For anyone who has made a movie of a meteor falling from the sky and striking the ground.... what did you use to make a crater for afterwards?
Posted: Wed, 7th May 2008, 3:43am

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Plainly

Force: 1537 | Joined: 27th Dec 2006 | Posts: 767

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Rating: +2

I've never actually done it myself, but I believe this would be a simple case of masking.

Take your footage (I'll use this:
)

Take a picture of a crater (I'll use this:
)

and composite them together. Quite simple, really. It's just once you get into moving camera and the such that you might have to do some manual motiontracking, but I don't think it should be a really big deal.

Anyway, what you need to do is place the video of your scene one the timeline, then the picture of the crater below it. Then, mask out the part of the scene (aka layer 2) that you want to become a crater.



Then, animate the picture of the crater so it looks as though it's natural. Colour grading can then be applied to make it look as though it was shot at the same time. Here is my (very quickly done) final result:



I hope this helps you!

Plainly
Posted: Wed, 7th May 2008, 4:32am

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Drmeow

Force: 605 | Joined: 30th Jun 2007 | Posts: 2

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Yeah.. I think I might try that.... thanks for the help!
Posted: Wed, 7th May 2008, 4:33am

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Axeman

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SuperUser

Nicely demonstrated. In conjunction with this technique, there will be loads of dust/smoke/debris when the meteor hits, which works very nicely to hide the transition when you add the crater to the scene.