Particle attractor using kinect


I want to use either the player ID texture or the skeletal positions as particle attractors.

I have tried using the joints positions as instanced spheres and putting the out on the Geo node to the attractor of the particle node, this doesn’t use the instances, only the base geometry before the instancing, is there a way to achieve this with instancing?

Or, is there a way to use the luma from the player ID and convert it to geometry to use as the attractor?