[PD] open-ended video mixing

Hans-Christoph Steiner hans at eds.org
Thu Mar 23 23:54:38 CET 2006


alpha blended together, everything on the same screen.  It doesn't  
even have to be alpha blended, tho that would be nice.  It could just  
choose the first pixel that isn't black.

.hc

On Mar 23, 2006, at 10:25 AM, B. Bogart wrote:

> Define "mix"?
>
> Do you mean alpha blended on top of one and other, or do you mean  
> placed
> side by side? The more videos you get the smaller the videos become?
>
> .b.
>
> Hans-Christoph Steiner wrote:
>>
>> I want to build a program which takes a flexible number of videos and
>> mixes them all to one output.  Basically, I want to be able to start
>> and stop playing any video at any time and have everything mixed into
>> one screen.
>>
>> This is for a cafeteria that all of the walls and ceiling are covered
>> in 50,000 LEDs.  Its not quite a video screen, since the pixels are
>> 3"/8cm square, but it should allow for some crazy stuff (more info
>> later, as the project progresses).  All of these LEDs are mapping  
>> to  a
>> video-in.  The idea is that someone could make a video for one   
>> section
>> of the cafeteria and it could be played at the same time as  someone
>> else's video for a different section.  Think of trying to  curate a
>> giant video frame by divvying out sections of the screen to  a
>> open-ended number of people.
>>
>> (this doesn't have to happen in Pd, by the way, but it would be  
>> nice  if
>> it did).
>>
>> .hc
>>
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