Re: [experimental video blog] Rolling Juggling Ball Effects

Little Paul wrote:

On 2009-01-09, n8rae <n8rae@xxxxxxxxxxxxxxxxxxxxxx> wrote:
Over on my blog ( http://www.nathanrae.co.uk ) i have set myself the
challenge of making An Experimental Film A Week For A Year.

Yay!

*adds to rss reader*

why thankyou...

This is a test/experiment to see how I can use visual feedback between a
big HD TV and my camera to create interesting live effects with no editing
or post production. This system shows a lot of potential but I need to
practice the "jugging" patterns to make the performance side more engaging.

I'm intrigued by the lack of colours, I'm guessing that it's because the
TV is optically very bright compared to the rest of the scene, and the
feedback effect drives it towards white - but because of the display
technology in use, and the white balance setting in the video camera it
looks more blue.

The problem is that it's like trying to get a pencil to balance on the
pointy end. You change one tiny thing and it is amplified to the extream
down through the layers very quickly. For example, changing the white
balance slightly on layer one is doubled on layer two then exponentially
as it goes.
So i picked the blue cos it looked nice.

It's an interesting idea though!

The black rectangle at the bottom is actually my coat sleeve covering the
red "REC" icon which annoyingly wouldn't go away. Next time i try this
sort of effect (cos i am planning to come back to this at some point) I'll
try to find a more elegant solution.

Is that coming from the camera? Surely there's a setting to turn that
off!

Yes there is, but i only realised it was there after i had spent ages
setting everything else up just right. I was running out of time so i
just botched it.


I hope you enjoyed the video! Any suggestions about where this experiment
could lead? Any comments?

I'd be tempted to get a large picture frame, and mount it a foot or so away
from the TV, then light the hands/balls in such a way that you increase the
contrast between the juggling and the display. You might be able to coax
some more interesting colour out of the effect.

I assume the feedback is all via digital signals. If you happen to be
feeding back via an RGB analogue connection of some kind, you could
quite easily build a gadget that fiddled with the RGB levels to colourise
the display (3 variable resistors would do it) I think this is what they
did with the old-skool Dr Who intro.

My mate at uni has a gadget just like this that he made a couple of year
ago. I might ask to borrow it next time i have a go.

www.nathanrae.co.uk - An Experimental Film A Week For A Year.

While you're plugging that, I may as well plug my "52 projects in 52 weeks"
idea. Very little of it will be juggling related though. See paulseward.com
for more info

-Paul

be my guest, it was your photo blog (from last year) that inspired me to
do the video blog.

Also you can check out Shona's new photo a day blog here:
http://shonarae.blogspot.com
(not so much as inspired as stolen from lp's blog)

nhatan

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----== posted via www.jugglingdb.com ==----
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