particles & GPU

Hi there,
I’m exploring other ways for my particle system.
I checked GPUparticleSystemExample and I’m trying to modify it to be my system base.

I don’t need a png texture, but only drawing points and I didn’t achieve to modify it to make this.

I’d like to keep pos + vel calculations, even if I only need pos at this first step of my work.
then, I’ll integrate some attractors data in my systems.

Anyone here?
That would unstick me.