3D Camera Tracking
Sometimes it's far more desirable to integrate the 3D
scene with real live video footage than to build all the
surrounding landscape. Not only is it easier sometimes
but it can be far more realistic.
The process begins with shooting footage, normal aerial.
Then a computer stabilizes the video. Following that one
of our artists uses specialized applications to spot features
in the video that are "tracked". This is done
as a mixture of guidance by the artist and some very clever
computer programming. The result from this is both clean
video footage (required for the final composite) and 3D
data that accurately represents the movement of the camera.
The camera is imported into the 3D
scene and everything
is adjusted to fit perfectly into the video footage. Then
the animation, outlining
the imported camera data is rendered out
as a separate video file.
The new 3D video file is then overlayed into the stabilized
video footage, and once a few more adjustments are made
we have a perfect finished video.
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