no no, that’s fine. With Billboards in the background it makes sense. That’s pretty much compositing. I was just wondering in case there are 3D meshes in the background makign up the forest how that is possible. Thing is, we did this kind of compositing in the past a lot with VUE. It was like sports to do such 3D-2D mixes in scenes with photos or billboards. It is nice to see that UE4 has reached that level in rendering!
, if you have not done it already, do not forget to tick early Z on both opaque and masked meshes in the project settings before ramping down the meshes. Also tweak the shadows in the baseconfig.ini to be just good enough and cheaper. That should double the framerate.