/3/ - 3DCG

>>770682
Total newbie here.

Trying to learn 3D for comic backgrounds. I have a strong 2D foundation, but I wanna use this to speed up my production process. Anyway, following this:

https://www.youtube.com/watch?v=l06RRz8w_4w&list=PLv6ShwihwvA8tyeh2R5NG-lzt6iJG8COq&index=5&ab_channel=PaulOCaggegi

And two major issues. 1 when I render the scene, nothing shows up. I did a previous render, and another set of buildings rendered in the bg, but the ones in the foreground did not.

2nd, and this one has happened a few times. After building my set, and closing the file. When I reopen it, everything clusters together like pic related. Why does this happen? How do I fix it?

Thanks in advance.