[PD] [GEM]: GL Shader Language

jack at rybn.org jack at rybn.org
Sat Jun 23 14:38:33 CEST 2007


>
>
> jack at rybn.org a écrit :
>> Yep, very interesting example !
>> You can "boost" Gem with glsl object.
>> Is there workshop in Paris about that Cyrille ?
> not yet, but i think i'll contact the CRAS in september in order to make a
> Gem workshop.
>
> in this list, who would be interested in a Gem workshop in paris?
> a glsl workshop?

Yep, i'm interesting.

>
>
> 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 at 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 at 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 at 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?
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>>>>
>>>> ----------------------------------------------------------------------------
>>>>
>>>>
>>>>                                               http://at.or.at/hans/
>>>>
>>>>
>>>>
>>>>
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