I’m wondering if anyone has tips or a technique to do bird’s eye views (looking downward from the sky at about 45 deg) of large urban areas, like as much as the entire downtown area of a good size city (which might include something like 20x20 city blocks) such that maybe a lot of the repetitive things like street trees, can be done in post.
The main problem is that there are hundreds or thousands of trees over a great deal of perspective, and some blocked by buildings. I’ve seen many images like this, and they are probably rendered right into the scene, but I can’t image my humble computer not choking to death on this, even using super low-poly trees (they don’t need much detail since you are so far away). And I can’t imagine putting that many objects into a 3D scene.
So, I began to wonder if there is some solution out there that would use depth data to do some of the work for me. It seems possible that the grey scale value in the depth map could size the tree and would know when an object like a building closer to the camera will obscure the tree I’m putting in.
I dunno, seems pretty unlikely that exists. BTW, I’m using max 2009 and Vray typically.