Andy

does anyone know of a gl shader that can act like jit.glue in 2d with 4 char jit matricies as inputs?

gl-slab-shader-that-is-simlar-to-jit-glue

This might be a little tricky to implement, but it's definitely 

possible. The GLSL is actually pretty simple to learn once you look 

into it. I recommend picking up a copy of the orange book. You will 

basically need to be scaling and offsetting texcoord values, as well as 

providing some sort of logic that defines which texture input is drawn 

at each pixel. The tricky part will be explicitly setting the size of 

each input texture and then the size of the output texture.

Hi Andy,
This might be a little tricky to implement, but it's definitely 
possible.  The GLSL is actually pretty simple to learn once you look 
into it.  I recommend picking up a copy of the orange book.  You will 
basically need to be scaling and offsetting texcoord values, as well as 
providing some sort of logic that defines which texture input is drawn 
at each pixel.  The tricky part will be explicitly setting the size of 
each input texture and then the size of the output texture.

I have done that with several textures to several jit.gl.videoplane, 

all resized to a portion of the gl world. It works perfectly fine!

The fun thing is that you can move them around after that!

I have done that with several textures to several jit.gl.videoplane,  
all resized to a portion of the gl world.  It works perfectly fine!

Using textures works a treat.
Many thanks

gl.slab shader that is simlar to jit.glue