[PD] more about openGL-GEM and glClear...

josephgray at grauwald.com josephgray at grauwald.com
Mon Jul 10 23:28:49 CEST 2006


hmm, well, no luck so far.

 can you attach your patch?

Thanks,
-Joe



> Hi,
>   I've got it,
>   [GEMglDrawBuffer] defined with [GLdefine GL_FRONT] and connected to
> [GEMglClear] does single buffering.
>
>   http://www.talisman.org/opengl-1.1/Reference/glDrawBuffer.html
>
>   If you don't find it I will send an attached patch...
>
>   patco
>
> josephgray at grauwald.com a écrit :  tried this also, didn't work in my
> patch.
>
> Interestingly enough the patch in
> GEM examples (PixDataSimple.pd) does leave
> pixels behind that have not been drawn over
>
> sending gemwin the "buffer 2" message does indeed
> clear the old pixels though
>
>
>
>>
>>  if send buffer 1 to gemwin don´t draw anything.
>> I want that when render a frame the previous frame
>> don´t clear...still drawed on back of screen,and this
>> way successively...
>>
>> in openGL without the command glClear this works.
>> but in GEM i don´t know how desactivate glCLear...
>> that is my question.
>>
>> thank you.
>>
>>  --- chris clepper  escribió:
>>
>>> You want single buffer rendering?  Send a 'buffer 1'
>>> message to
>>> gemwin.  I think PixDataSimple.pd in the 04.pix
>>> examples uses
>>> singlebuffer rendering.
>>>
>>> On 7/10/06, Andres Ferrari  wrote:
>>> >
>>> > hello,
>>> > is possible don´t use clear screen in GEM-openGL?
>>> > ,not clear previous frame when render in openGL?
>>> > in other applications with openGL like CsoundAV I
>>> can
>>> > do it, but in GEM I can´t...
>>> > I tried with
>>> > [GEM glClearColor],[GEM glClear]...but nothing...
>>> >
>>> > is possible???
>>> >
>>> > thanks a lot!!!!!!!!!
>>> >
>>> >
>>> >
>>> > Andrés Ferrari G.
>>> > http://puredata.org/Members/anfex
>>> >
>>> > __________________________________________________
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>>>
>>
>>
>> Andrés Ferrari G.
>> http://puredata.org/Members/anfex
>>
>> __________________________________________________
>> Correo Yahoo!
>> Espacio para todos tus mensajes, antivirus y antispam ¡gratis!
>> Regístrate ya - http://correo.espanol.yahoo.com/
>>
>> _______________________________________________
>> PD-list at iem.at mailing list
>> UNSUBSCRIBE and account-management ->
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>
>
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