[PD] Pd and gpgpu
marius.schebella at gmail.com
Sun Nov 11 08:42:25 CET 2007
hmm, I tried it, because I thought, that's it, but somehow it is not
the problem is, that pix_snap is not working as expected:
after "do some stuff" I am still on the graphics card, basically I
created a texture, that I can reference as ID. and pix_snap, I don't
know, does not create an output...
[pix_pix2sig~ 8 8]
| | |
[dac~ 1 2 3]
Roman Haefeli wrote:
> yo, ignore me, if i am saying something absolutely stupid and unrelated,
> but isn't that exactly, what [pix_sig2pix~] and its counterpart
> [pix_pix2sig~] do? of course you still would have to [pix_texture] first
> in order to transfer the data to the gpu and then afterwards [pix_snap]
> it to bring it back from gpu to a pix.
> from my experience, doing just all this transfers is pretty slow
> (especially [pix_snap], as others already mentioned)
> On Sat, 2007-11-10 at 13:59 -0500, vade wrote:
>> Max MSP/Jitter has bridge objects that convert from audio rate to
>> matrices and back, which would be needed in PD land to readback from
>> the GPU, and convert to an audio rate signal. Thats how this is done.
>> Otherwise i have no idea how you would implement souch a patch.
>> On Nov 10, 2007, at 8:55 AM, Georg Holzmann wrote:
>>>> it is true that the gpu is unused most of the time and could be
>>>> used to
>>>> do fast calculations, but the main output for graphicscards is the
>>>> screen and reading back into ram can be slow. (of course "slow" is a
>>>> relative term). I also see a problem in the different formats for
>>>> and images. most graphics cards are optimized for vec4 processings (4
>>>> parallel color channels). and audio...
>>> Well, there are already quite some papers/software for audio
>>> on the gpu (see e.g.
>>> But AFAIK nobody did this with pd up to now ...
>>> PD-list at iem.at mailing list
>>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
>> PD-list at iem.at mailing list
>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
> Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de
> PD-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
More information about the Pd-list