Let’s do another. But this time we’

Let’s do another. But this time we’ll start by drawing a block, a transparent one. And we’ll put it below the horizon. And we’ll make it closer to us in space. Start with the front face on the right side of the page. Take a line from each corner of the rectangle back toward the vanishing point. We’ll use the same one we used for the other block, draw the back face and we’ve got our block. I’ve asked you to draw this transparently because we’ll need the internal structure to generate the block’s cast shadow. The block’s vertical edges will function like the vertical posts we drew in the last drawing. Parallel light rays will glance their tops and continue to the ground plane. To mix things up a bit, we’ll change the ray’s angle more towards the vertical. Make it a little earlier in the afternoon. As we did before, we’ll extend horizontals from the verticals’ bases to create the cast shadows of these edges.