[PD] recursive video feedback in GEM or PDP?

Derek Holzer derek at umatic.nl
Tue Mar 31 17:51:35 CEST 2009


Thanks. I know that it is inherent in the system, but is there a way to 
control the "fuzziness" of each iteration, so that the image loses its 
alpha value but retains the sharpness of it's outlines?

D.

cyrille henry wrote:
> 
> 
> Derek Holzer a écrit :
>> which objects could be used to make this framebuffer?
> gemframebuffer.
> 
> here is the patch jack send recently on the list.
> cyrille
> 
>> d.
>>
>> cyrille henry wrote:
>>> this was the old way to do (but still working fine).
>>> i think it can be faster to render in a framebuffer, and use this 
>>> framebuffer as a texture to draw in a 2nd framebuffer.
>>> and drawing back to the 1st.
>>> etc.
>>> there are also some example in the glsl section.
>>> jack also send a simple exemple somwhere recently.
>>>
>>> ++
>>> c
>>>
>>> Derek Holzer a écrit :
>>>> Thanks much! [pix_snap2tex] is exactly the starting point I needed.
>>>>
>>>> D.
>>>>
>>>> cyrille henry wrote:
>>>>> look at gem exemple 07.feedback in 07.texture directory
>>>>> and also at "self similar" performance by Ben bogart (2004) :
>>>>> http://www.ekran.org/ben/wp/?page_id=101
>>>>>
>>>>> ++
>>>>> c
>>>>>
>>>>> Derek Holzer a écrit :
>>>>>> The other night I watched a very nice lecture from Paul Prudence 
>>>>>> (dataisnature.com). He uses VVVV to make audio-responsive video 
>>>>>> feedback, where a single shape (a square) is recursively 
>>>>>> displayed, causing very complex structures to arise. The relevant 
>>>>>> parts of the lecture are here:
>>>>>>
>>>>>> http://www.vimeo.com/2930699
>>>>>> http://www.vimeo.com/3003040
>>>>>>
>>>>>> although I would encourage people to go through the whole thing 
>>>>>> (11 parts on Vimeo) if they have time + interest.
>>>>>>
>>>>>> I'd at a loss to think of how something similar, i.e. the 
>>>>>> recursive feedback, could be done in GEM or PDP. Any suggestions?
>>>>>>
>>>>>> best!
>>>>>> Derek
>>>>>>
>>>>>
>>>>
>>>
>>

-- 
::: derek holzer ::: http://blog.myspace.com/macumbista ::: 
http://www.vimeo.com/macumbista :::
---Oblique Strategy # 48:
"Discover your formulas and abandon them"




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