[PD] gem and double buffer

[Jack]

Le 19 juin 09 à 11:38, cyrille henry a écrit :

>
>
> jack at rybn.org a écrit :
>> Yep, that's why Cyrille says that you can use [pix_snap] or
>> [pix_snap2tex].
>
> like in exemple 07.texture/07.feedback
>
>> Or you can also use [gemframebuffer].
>
> like in exemple 10.glsl/06.framebuffer and shader, but removing the  
> shader.
>
>> With that, you can capture a certain part of your last frame and  
>> add it to
>> your new. But the result could be not very nice.
>
> why?
>

I was sure that a blur appear after a certain period. But i am wrong.
So there is no problem to use this objects to simulate single buffer  
in double buffer mode !
++

Jack


>> Try !
>> ++
>> Jack
>>> yes, but my problem is : I need to emulate single buffer on  
>>> double buffer,
>>> i need to use double buffer because i work with iterations using  
>>> repeat or
>>> until objects, and in single buffer with metro this iterators are  
>>> so so so
>>> slow, almost "2" fps.
>
> wow, it's strange that it is slower in single buffer.
> do you have a test patch that demonstrate this?
>
>>>
>>> i want don´t clear the image buffer when is drawed the new  
>>> buffer, like an
>>> accumulation...but using double buffer!!....is possible???...in  
>>> single
>>> buffer is easy, but with iterators....no way.
>
> i don't understand why iterators can't work in single buffer.
>
> cyrille
>
>
>>>
>>>
>>> thanks for your patience.
>>>
>>> Message: 6
>>> Date: Mon, 15 Jun 2009 18:34:18 +0200
>>> From: cyrille henry <cyrille.henry at la-kitchen.fr>
>>> Subject: Re: [PD] gem and double buffer
>>> To: Andres Ferrari <anfex at yahoo.com>
>>> Cc: pd-list at iem.at
>>> Message-ID: <4A36780A.1000905 at la-kitchen.fr>
>>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>>
>>>
>>>
>>> Andres Ferrari a ?crit :
>>>> hello,
>>>>
>>>> is possible in gem to change between single buffer and double  
>>>> buffer
>>>> without destroy gemwindow??
>>> no
>>>
>>>> or dont`t clear buffer(background image) in double buffer???
>>> not really, but you can sna2tex and draw the last image on every  
>>> frame.
>>>
>>> you can also easily emulate 2 buffer while in single buffer,  
>>> using metro
>>> to bang gemhead and clean windows / clear Z buffer.
>>>
>>> Cyrille
>>>
>>>> thanks a lot!!!
>>>>
>>>> Andr?s Ferrari G.
>>>>
>>>> http://www.myspace.com/anfex
>>>
>>>
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