i noticed that if i use a Blinn node that then there is no  shadow visible.

BB what i wanted to do is use the specular like we talked and connect a panorama image to it. but  if i only do this then i can not use any extra rim lights. so i was thinking using both. for the left,right,top,front to use the panorama image. and an extra Blinn node for extra rim lights.

but if we use a wide Blinn it looks very strange