[PD] simple rgb color organ

[Jack]

It doesn't work with [hsv2rgb] ?
Have a look to this patch.
++

Jack

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Le 13 avr. 09 ? 00:12, Derek Holzer a ?crit :

> Done! Results are attached, with GEM example help patch. Could also  
> be useful for controlling PWM dimmer for RGB lights or LEDs.
>
> best!
> D.
>
> Derek Holzer wrote:
>> I also found this:
>> http://www.mail-archive.com/use-revolution@lists.runrev.com/ 
>> msg17390.html
>> Which seems much more useful for the task at hand. But not being  
>> much pf a C programmer, it could take me some time converting it  
>> into a Pd patch. I'll report back...
>> D.
>> Claude Heiland-Allen wrote:
>>> Derek Holzer wrote:
>>>> Hey gang,
>>>>
>>>> before I go reinventing somebody else's wheel... has anybody  
>>>> written something that takes a (sound) frequency in Hz or MIDI  
>>>> note and outputs the transposed color in RGB values? Along these  
>>>> lines:
>>>>
>>>> F#44 = 737 nm(Infrared)
>>>> G 44 = 696 nm(Red)
>>>> G#44 = 657 nm(Red)
>>>> A 44 = 620 nm(Red-Orange)
>>>> A#44 = 585 nm(Yellow)
>>>> B 44 = 552 nm(Green)
>>>> C 45 = 521 nm(Green)
>>>> C#45 = 492 nm(Green-Blue)
>>>> D 45 = 464 nm(Blue)
>>>> D#45 = 438 nm(Violet)
>>>> E 45 = 414 nm(Violet)
>>>> F 45 = 390 nm(Ultraviolet)
>>>>
>>>> Or even something that takes the light wavelength in nanometers  
>>>> and gives separate RGB values? I'm working on a simple color  
>>>> organ for a friend this week.
>>>
>>> http://www.fourmilab.ch/documents/specrend/
>>>
>>> Have fun..
>>>
>
> -- 
> ::: derek holzer ::: http://blog.myspace.com/macumbista ::: http:// 
> www.vimeo.com/macumbista :::
> ---Oblique Strategy # 131:
> "Question the heroic approach"
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> for libcolor. http://www.mail-archive.com/use- 
> revolution at lists.runrev.com/msg17390.html
> ;
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> ;
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> Let the intensity fall off near the limits of vision \, as represented
> by A (Alpha).;
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