Large Spatial Extent

Figure 3: Overview and solution for the huge test case.

This scene has a large spatial extent, however the camera is positioned on a very small portion of the scene. The scene itself consists of a large ground plane, light, and blocker directly below and the same size as the light. Underneath the large blocker is a small light and blocker pair scaled down in width and depth by a factor of 10. The small light aims up. The camera looks under the large blocker (Figure 3). Algorithms that compute global solutions or sample lights based on the energy of each light may have trouble getting a high enough accuracy over the visible pixels, as 99% of the energy in the scene is due to the large light, but much of the visible energy is due to the small light.