GLSL and instancing issue

Hello everyone,
I’m working on an important school project, and I got stuck trying to instance ABC letters on particles. The main issue is that I’m using GLSL MAT so I’ll be able to move the particles later, but since I’m not very familiar with GLSL (I got the MAT from someone else) I’m not sure how to deal with the situation.

So here’s my .toe, and a JPEG of the result I’m after (it works if I use constant MAT but as I said, I need that GLSL).
Any help would be greatly appreciated!


GLSLparticlesOfir.rar (651 KB)