From: "Frank Bemelman"
Subject: Re: Flickering Candlelight Effect??
Date: Thu, 2 Jan 2003 15:47:19 +0100
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Organization: EuroNet Internet
NNTP-Posting-Date: 02 Jan 2003 14:47:54 GMT
"Spehro Pefhany" schreef in bericht
> On Wed, 01 Jan 2003 19:45:11 GMT, the renowned Jim Thompson
> >I seem to recall a thread about simulating a flickering candle. At
> >the time I had no interest.
> >Now we've been given a very nice set of steel Christmas carolers about
> >3' high, each caroler holding a music book and a candle holder.
> >Candles would never stay lit in the breezy Arizona December, so I'm
> >thinking of simulating a candle with LED's (or could be incandescent).
> >Any ideas?
> I played around for a few hours with a microcontroller PRNG-based
> flickering candle, but the combination of simulated motion, amplitude
> and color changes was not as convincing as I would have liked when
> compared with mechanical methods that the movie studios etc. use.
> I can burn a chip (8-pin uC) and drop it in the mail if you'd like
> to fiddle with it. Just the chip and LEDs and resistors are
> required, IIRC.
I just tried my triple pwm thingy, with 3 incandescent lamps.
I've made a AVI file of it, http://www.euronet.nl/~fbemel/Files/
It's a bit out of focus.
Now we have to find a company that makes bulbs with 3 filiaments,
or use 3 of those tubelamps found in older stereo's.
It doesn't look bad, if you almost close your eyes, looking
through your eyelashes ;)
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