[GEM-dev] [PD] Blending mode directly on objects, not pixes?

[Jack]

i forgot the patch.
++

Jack



Le dimanche 29 novembre 2009 à 15:41 +0100, Jack a écrit :
> Le dimanche 29 novembre 2009 à 12:07 +0100, IOhannes m zmölnig a écrit :
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> > Matteo Sisti Sette wrote:
> > > Ohhhhhhh, ok!!!
> > > 
> > > [env ( is the way the texture blends with the color of the survace (i.e.
> > > the one set by [color])!!!
> > 
> > ah right. that answer was late at night...
> > 
> > > That's useless to my purpose: by blending mode I meant the way the
> > > object (with its resulting color however it results from its color and
> > > rexture) blends with its background
> > 
> > yep. you should be able to control this on low level with
> > [GEMglBlendFunc] and [GEMglAlphaFunc]
> Sometimes the solutions are very simple, we just need a simple OpenGL
> function :)
> I have started to read the Red Book there is few month ago, i have to
> finish it !
> I have done this patch, is it correct to use different blend modes ?
> ++
> 
> Jack
> 
> 
> > 
> > > 
> > > At the end I think I'll use glsl: with a very small and trivial
> > > modification to the "multitexture" example I've been able to
> > > add/multiply/subtract two textures, so I'll use that to blend a
> > > [framebuffer]ed image with another one as textures.
> > >
> > 
> > well, if you only want to change the blending between a surface and the
> > background, then you should be able to do this without [gemframebuffer],
> > 
> > but then you would have to re-implement the default fragment shader
> > which is probably not worth it.
> > 
> > i wonder why i miss something like ftransform() for fragment shaders.
> > 
> > fgamr
> > IOhannes
> > 
> > 
> > mfasr
> > IOhannes
> > 
> > 
> > 
> > 
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> > 
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