If the camera doesn't move at all the shot is very simple. Just shoot the background without the people, layer it behind the footage, and when you Kroma out the skateboard the background will show through and fill the hole.

If the camera moves I think you need computer tracking software to ensure the background plate moves at exactly the same speed and direction as the camera does while shooting the skateboard.

RJSchwarz
San Diego, CA

The shots are all moving.

What kind of software exactly, I see a bunch of camera tracking software, but its mostly for 3d graphics. Can anyone give me a specific product/website?

And then would the software have to be connected to an automated tripod/camera?

Thanks for the help.

You cold use boujou by 2d3. Although boujou three is going to cost you around $10,000 for a single license or boujou bullet two around $2,500. I've messed around with the demo and can't believe they get away with chargin that much for the app. Heres the link if your intrested though: http://www.2d3.com/jsp/products/product-overview.jsp?product=10 I think this also mainly for 3D stuff though.

I think to do it properly you often need mechanical hardware designed to be moved by the software. Industry Lights and Magic created that kind of toys for the original Star Wars. I'm sure its out there and I'm sure its very expensive. Then again they were tracking all over, if you keep your tracks simple dolly tracks or something it might be easier.

It would be easier and cheaper to put the camera on a tripod and plan dozens of cuts rather than a moving camera.

RJSchwarz
San Diego, CA