Hi, I love the mod, but I noticed in a game that this happened: https://i.imgur.com/is9Oamf.jpg

A black chunk-sized square is created because this square has no pollution smog. I don’t know why this happened – perhaps this one chunk had no pollution. That’s the most likely explanation. However, it caused an abrupt change in visuals, and I had to disable the mod as it looked too weird. Hopefully this can be fixed!

that's very odd. a work around could be to refresh the rendering of the smog clouds by changing the settings of the mod to and fro.
do you have a save of this world so i can see why this happens? it's almost seems like that chunk was never registered by the mod for some reason.

i have the problem too. but it's not just limited to 1 chunk but to several. sometimes they even alternate (so where there was no smog, there is smog, but somewhere else there is no smog).
https://i.imgur.com/Tc8djgk.png
https://i.imgur.com/VqBKtyL.png (one chunk smoke moved)

weird, have you tried changing the settings and then changing them back?
if that doesn't work would you mind sharing your world file. so i can investigate it further?

which settings? show smog for player or which for map?

in 'game menu>settings>mod settings>map' change maximum layers of smog to 1 and then back to 5 and see what happens.

i took down a few trees earlier. i don't have the problem anymore. if it comes up again, i'll give it a try and give feedback again

alright thank you, I've also noticed that this issue only happens at the edges of the smog.
is this true? if that is true then i might have an idea where the problem might be.

soo, I've just had it again. changing the setting does nothing. the "evil" chunk is still there after switching to 1 and again when you switch back to 5.

regarding the edges: yes, that may even be possible. it is never really in the centre, always more on the edge. I can only say in general terms whether it is the edge of the smoke.
In any case, the problem is not permanent. Sometimes the chunk has smog, sometimes not.

i think the problem occurs most likely when 2 pollution sources meet in the middle and there is no condition to put a corresponding 'smog graphic' at the edges there. if this is the case non uniform shapes of smog could cause this issue especially at a smaller scale. I will have to do some digging to fix this. thank you for the report.

Has this been fixed?

Not yet unfortunately. I currently have a version that fixes most of these edge cases but not all. I'm currently getting back into factorio so i will inspect further the coming weeks.

Okay, thanks. Looking forward to the fix!

should be fixed now. Tell me if you see any more odd behavior.