This illustration shows a top-down view of a 3D scene, where each blue edge corresponds to a planar square perpendicular to the image plane (i.e. coming out of the page) and the eye of an alternative viewpoint lies in the image plane. The short vectors are normal vectors. The eye locations are illustrated by the black dots e_1 and e_2. Draw a BSP tree for the above scene by adding the segments in the labeled order (i.e. from 'a' to 'h', breaking segments as necessary). Describe how your tree will be traversed when rendering the scene from the eye location e_1. Then describe how it would be traversed from e_2