opengl - Doubts about Design of Deferred Rendering shaders -

i'm developing graphics engine , have deferred technique running, thing every model, independently of material (with own shader , texture) rendering same shaders, 1st pass of technique saves info g-buffer, , 2nd pass use info lighting part.

is how it's supposed central deferred shader, or can each model have own deferred pass stores information on g-buffer on own way?