today i was making screenies and noticed that if im placing the camera behind the fence, theres no smoke anymore, even thought they should be there

look:

Quite an old bug but they fixed this bug with smoke + windshield border, I don't know why this isn't fixed yet.

For what people talked about that bug I understand this (disclaimer: could be totally wrong)

DirectX needs an order for transparente layers. With the winshield you know that it will be in front of (closer to you) the smoke, so you can fix that. But a fence can be in fron or behind the smoke, hence you can not make it work always.

The old smoke bug, where in some parts of South City there was no smoke at all was more of disappointing ^^.