[PD] Gem: Using 2 glsl_program objects ?

marius schebella marius.schebella at gmail.com
Sun Nov 25 21:40:30 CET 2007

Hi alexandre,
why do you think it is not possible? or what exacactly do you want to do?
If you try to have several glsl programs like a filter bank, first do 
glsl-blur, then glsl-bloom, then glsl-apply-texture-to-model... then I 
think this only works with gemframebuffer plus playing around with 
"texunit 0", "texunit 1", and so on... and maybe also the right 
in/outlets of texture to reference gpu textures.
unfortunately GEM on os x 10.5 is still broken, so I can only do very 
rudimentary stuff (no developing), but before that I was trying to do 
exactly this and I think it should be possible to do.

Alexandre Quessy wrote:
> Hi,
> It seems like we cannot use two GLSL shader programs at a time. Hence,
> I need to merge both fragment and vertex programs to use them
> together.... Is there a way to use more than 2 shaders ? In Jitter,
> there is jit.gl.slab that allows that.
> http://www.cycling74.com/documentation/jit.gl.slab
> If not possible in Gem, that would be an awesome add-on to it.

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