So here in this image I have imported a poser horse and rider with a spear.
Right now its all one object. What I do not understand is why the riders leg does not have a shadow. I am using the Eevee Render Engine I played around with the irradiance volume, reflection cube map and reflection plane light probes but it does not seam to make a difference. Im going to re- watch a few more tutorials on Eevee lighting but still this provides a mystery to me - I have the SUN light object shinning down from the top and it knows to cast shadows on each object but it is having a problem with the objects that can be separated - Like I can go into edit mode and separate the rider from the horse -