[PD] [GEM]: GL Shader Language

cyrille henry cyrille.henry at la-kitchen.fr
Sun Jun 17 12:58:10 CEST 2007


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


> 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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>>
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> 
> 




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