I am hoping to learn more about programming by using PD, but it would also be nice to crank out some good looking shaders in a timely manner
On 6/25/07, Alexandre Quessy listes@sourcelibre.com wrote:
HI Cyrille and others.
I modified the abstraction to make opening the two files easier. It uses file/parentfolder from the PdMtlAbstractions. (try it !! It answers your question)
For the C programming and such, I just meant that it is nice if we can tend to make Pd easier to use for people that are not that much used to advanced programming. A good documentation and a nice structure helps a lot...
a
2007/6/23, cyrille henry cyrille.henry@la-kitchen.fr:
Alexandre Quessy a écrit :
Eh Jack ! Very nice examples, yes. Cyrille, do you think that one should understand C programming in order to use Pd? I don't.
i don't see your point here. glsl programming is not very diferent from C. So, understanding C is
good for learning glsl.
but you don't nead glsl in order to use pd. you just need glsl if you want to do very heavy pixel processing at
50fps / 1024x768 without using any CPU time by exemple.
Of course, its low-level orientation makes it perfect for someone to learn lower level stuff.
Anyways, I added an abstraction for shaders in the PdMtlAbstractions. See https://devel.goto10.org/pdmtl/browser/trunk/pdmtl/gems
cut / paste the help file is (for me) easier to use, as i usually put
the shader in in the same directory as my patch, so i don't nead to provide the full path for the shader. (and the patch could run on other computer without changing all path).
is there a solution for an abstraction to know the directory of it's
parent patch?
cyrille
a
2007/6/19, jack@rybn.org jack@rybn.org:
Yep, very interesting example ! You can "boost" Gem with glsl object. Is there workshop in Paris about that Cyrille ? I think, that it would be interesting to do.
Jack
Hans-Christoph Steiner a écrit :
On Jun 17, 2007, at 6:58 AM, cyrille henry wrote:
> hello, > > > Kyle Klipowicz a écrit : >> Ooop please send any elementary examples of these things. > > > i post a few very diferents shader and the pd patch to use them
here :
> > http://drpichon.free.fr/gem_glsl_ch_200070617.zip
Wow, these are some nice examples, these should be included in the "examples" section of Pd-extended.
well, i think i should clean up some code and check licence for the
shader
i did not write. where should i put them in order to include them in pd-extended?
cyrille
.hc
> > >> I got >> confused by the Gem docs (they don't explain OpenGL as
thoroughly as
>> the vanilla Pd-docs explain DSP). > > Gem doc aim is to explain gem specific stuf. but in order to use
Gem,
> you also need a good openGL book. > (you can find lot's of them) > > cyrille > > >> >> ~Kyle >> >> On 6/17/07, cyrille henry cyrille.henry@la-kitchen.fr wrote: >>> hello, >>> >>> Alexandre Quessy a écrit : >>>> Hi all ! >>>> The Toon.vert and Toon.frag shaders don't seem to work quite
well
>>>> here. I only get some kind of darker or lighter grey depending
on
>>>> the >>>> value of the "Phong" variable I set it to have. I am using >>>> Pd-extended >>>> 0.39-2 test 5 on Ubuntu Linux Intel. Gem is 0.91-cvs compiled
on Mar
>>>> 16 2007. Should I generate something any better ? >>> this is exactly what the toon shader is aiming to do. >>> look at it's code to undersant why. >>> >>>> >>>> Anyone has an other GLSL shader to suggest to try it with ? >>> >>> yes, google has a lot. >>> >>> i have a few other exemple on my computer, tell me if you're
looking
>>> for some specific stuf. >>> >>> >>> cyrille >>> >>> >>>> >>>> Thanks !! >>>> >>>> a >>>> >>>> 2007/6/16, chris clepper cgclepper@gmail.com: >>>>> GEM is a bit easier to deal with for shaders since there is
no
need
>>> to do >>>>> any specific wrapper. Any ARB_ vertex or fragment shader and
any
>>>>> GLSL >>>>> shader you find on the web can work in GEM without
modification.
>>> In some >>>>> cases you might need to change something in the shader text
to
deal
>>> with >>>>> rectangle vs 2D textures. >>>>> >>>>> >>>>> On 6/16/07, Cypod cypod25@gmail.com wrote: >>>>>> >>>>>> On the cycling74 webpage there is an interesting article
about
>>> writing >>>>> shaders for jitter: >>>>>> http://cycling74.com/story/2007/5/23/181113/507 >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> is there a similar function available for GEM? Has anyone
had
>>> experience >>>>> with doing this? >>>>>> _______________________________________________ >>>>>> PD-list@iem.at mailing list >>>>>> UNSUBSCRIBE and account-management -> >>>>> http://lists.puredata.info/listinfo/pd-list >>>>>> >>>>> >>>>> _______________________________________________ >>>>> PD-list@iem.at mailing list >>>>> UNSUBSCRIBE and account-management -> >>>>> http://lists.puredata.info/listinfo/pd-list >>>>> >>>>> >>>> >>>> >>> >>> _______________________________________________ >>> PD-list@iem.at mailing list >>> UNSUBSCRIBE and account-management -> >>> http://lists.puredata.info/listinfo/pd-list >>> >> >> > > _______________________________________________ > PD-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list
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-- Alexandre Quessy http://alexandre.quessy.net http://www.puredata.info/Members/aalex
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