Shadow Test

Figure 2: Overview and solution for the shadow test case.

This scene tests accurate transfer in the presence of occluders. It contains a single light source, 8 long beams, and a ground plane (Figure 2). The light is rotated so that it is parallel to the plane formed by the tops of the lower set of beams and so that its edges are parallel with the major edges of the lower set of beams. The height between the occluding objects and the floor varies from penetrating the ground plane to high enough to eliminate the umbra. The orientation of the light causes D1 shadow discontinuities on the ground plane.