[PD] gem and double buffer

[Jack]

Le 19 juin 09 à 16:23, cyrille henry a écrit :

>
>
> Jack a écrit :
>> Le 19 juin 09 à 14:54, cyrille henry a écrit :
>>>
>>>
>>> Jack a écrit :
>>>> 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 !
>>> blur can appear, under cettain condition, with antialiasing /  
>>> quality 1 to the texture or small displacement.
>>> but you can avoid it if you wish.
>> Yep, there is blur with antialiasing and with [pix_snap] and  
>> [pix_texture] (with quality 0 or 1) or with [pix_snap2tex]. But it  
>> seems to be OK with [gemframebuffer] and [pix_texture] (with  
>> quality 0 or 1).
>> Have you an other method to avoid blur with [pix_snap] and  
>> [pix_snap2tex] with antialiasing ?
>
> pix_snap2tex and antialiasing did not gives blur here.
> at least with the attached patch.
> but i thik it used to.
> i would not be surprised if that would depend on the driver/ 
> hardware...
>
> could you try this patch?

Yep, i get blur here.
MacOSX.4.11, Pd version 0.41.4-extended-rc2, GEM ver: 0.91.3 'tigital'
I will test tomorrow on Ubuntu 9.04.
++

Jack


>
>
> c
>
>> ++
>> Jack
>>>
>>> c
>>>
>>>> ++
>>>> 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
>>>>>>>
>>>>>>>
>>>>>>>        
>>>>>>> ________________________________________________________________ 
>>>>>>> ____________________
>>>>>>> ¡Obtén la mejor experiencia en la web!
>>>>>>> Descarga gratis el nuevo Internet Explorer 8.
>>>>>>> http://downloads.yahoo.com/ieak8/?l=e1
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Pd-list at iem.at mailing list
>>>>>>> UNSUBSCRIBE and account-management ->
>>>>>>> http://lists.puredata.info/listinfo/pd-list
>>>>>>>
>>>>>>> <reverb.pd.zip>