[PD] [GEM-dev] gl stack underflow
cyrille henry
ch at chnry.net
Fri Jan 1 19:44:08 CET 2010
why do you use pix_snap?
you don't need a pix_snap with a frambuffer since you can directly send the content of a framebuffer to a pix_texture (and then using it with multitexture)
c
Matteo Sisti Sette a écrit :
> Thank you for pointing me to the examples, but it definitely seems there
> is some kind of interaction with [pix_snap]: even if I force
> [gemframebuffer] to use texunit 0 and my textures to use texunits 1,2,3
> and 4, I still get under/overflows as soon as pix_snap takes a snap, and
> my shader is using a snapped picture (which does not correspond to any
> other texture) instead of the texture I expect it to use.......
>
> Well I will try to post a simplified patch because this explanation of
> mine is a mess, but it seems I have to figure out how to avoid pixsnap
> to mess with textures. It does not accept a texunit message (dunnow if
> it would make any sense)......
>
> cyrille henry escribió:
>>
>>
>> Matteo Sisti Sette a écrit :
>>> cyrille henry escribió:
>>>> there is an exemple of how to use multiple texture / textunit in the
>>>> gem exemple folder, in directory 10.GLSL
>>>>
>>>>
>>>
>>> You mean 05.multitexture.pd?
>>>
>>> Yes I've seen it (it is thanks to that example that I have been able
>>> to do something - btw iirc it is yours, so thank you).
>>>
>>> But that doesn't show any interaction with [gemframebuffer] nor
>>> [pix_snap]. That's where my troubles begin (apparently)
>> the exemple 06 show how to use gemframebuffer and multiple texture.
>>
>> exemple 07 is also usefull for you.
>>
>> c
>>
>>
>
>
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