I have a tall object, casting a (sun lamp) shadow onto a plane scaled at 10,000 (dimensions 20K x 20K). But the shadow is being cut off not far behind my object (I can also see this visible limit in OGL). No matter how large I scale the ground object, the shadow is always cut off at the same place. If I view from top, the entire shadow is there! Changing Camera > View > Clipping Start and End has NO effect. So why is the depth being cut off in my OGL and renders?