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Australian film - Federation of Australian Movie Makers

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light on the shoes would be necessary. Ken arrived and Oh, No….! His dancing shoes are black and white,<br />

and his socks were red. Obviously the black part <strong>of</strong> the shoes would disappear in the video…So it was decided<br />

to try with green screen – not my first option because <strong>of</strong> the problems with lighting the green evenly<br />

and not casting shadows in the confined space.<br />

So Ken danced, and danced and I videoed HDV tape. We changed the angle and I shot from the step ladder<br />

trying to avoid those pesky shadows. So we had quite a fun night with me quite unaware <strong>of</strong> problems to<br />

follow.<br />

Even as we did the green screen shoot I knew the chances <strong>of</strong> a clean “key” were nil so my plan was to load<br />

the video into TB Studio and rotoscope the outline <strong>of</strong> the shoes. Sounds simple. I soon found out the TB<br />

Studio doesn’t like HDV and after a couple <strong>of</strong> queries on the Support Forum I reduced the quality to SD<br />

and converted the video to an Image Sequence – each frame becomes an image. Oh yes, lots <strong>of</strong> them.<br />

With the video images loaded as a background layer I tackled the task <strong>of</strong> tracing the outline <strong>of</strong> each shoe<br />

on each frame on a new layer. I soon realised I needed another layer so that the left shoe and the right shoe<br />

could be treated separately…double trouble.<br />

Page 36<br />

Not very nice, eh? and this was plan B …<br />

A major problem soon became apparent – HDV at 25 frames a second is not enough to “stop” the motion<br />

and considerable distortion to the shape <strong>of</strong> the shoes occurred. When I had enough shoes traced in TB and<br />

“played” to check the motion -<br />

It was horrible! I then had no option but to make new, better shaped drawings and refine the range <strong>of</strong><br />

movements. I simplified as much as possible. I made as much use as possible <strong>of</strong> TB’s ability to stretch,<br />

squeeze, rotate and move each drawing so that “tweening” can take place – a huge timesaver in that one<br />

drawing can be used many times in different shapes, positions and places and TB fills in between frames<br />

mathematically and sort <strong>of</strong> magically. I did the left shoe and right shoes in the side view and then from the<br />

front view and then had to “create” the change <strong>of</strong> position from side to front for both shoes – that didn’t<br />

work too well but as it happens in real time so quickly I think I get away with it. And there is the problem<br />

<strong>of</strong> one shoe being hidden by the other for parts <strong>of</strong> the movement.<br />

So that’s where lots <strong>of</strong> time goes – drawing, repositioning, redrawing for each frame.<br />

I knew that the laces would need to flop around and getting that right was a major chore - although they are<br />

barely visible they had to be constantly in motion or it would have looked very wooden. That needed two<br />

more layers and lots <strong>of</strong> changes, frame to frame.<br />

With the original sound locked to the background greenscreen image at least my timing problems were<br />

simplified and I only had to “foley” a few extra taps for the change <strong>of</strong> view and at the end where the music<br />

wasn’t quite long enough. Getting a good single “tap” sound is another story for another day!.<br />

<strong>Australian</strong> <strong>film</strong> & video

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