[0.12.29][Steam][Windows] Zoom out with Lua reveals map

[slindenau]

Not sure if this is a bug, just a visual glitch or a feature...but here it goes:

My buddy and i are on a multiplayer server, and sometimes we mess around with some Lua commands in the console.
This time we set the zoom level to a very small decimal number. So no gradual zooming out, bam straight to 0.01.

The first time this happend my game was frozen for a good bit, and then disconnected me from the MP game.
The second time this happend i noticed the following:
- i was able to see parts of the map we didn't explore yet
- my pc tried to render the entire visible map. This took up 2 whole cores of my i5-4690k (stock 3.5Ghz), and the game stil couldnt hold a decent framerate
- there is a grassland border around the map

See the following screenshots:
The "bugs"


The part we've actually explored: (note; this screenshot is taken AFTER messing with the zoom level)


We run Bobs mods.
If you need our save file, let me know.

[orzelek]

You forced game to render map outside generated borders - so it placed random grass everywhere it didn't have actual terrain generated yet.

Did your generated area start expanding after doing this?

[Rseding91]

There's a reason the zoom is limited without using console commands

You told it to zoom out *way* more than it normally does and those chunks aren't generated yet so it filled them in with the defaults just to render something.

It's a simple problem with a simple fix: don't zoom out that much.