Compile with this.
Autostart with:
```
binaries/system/pyrogenesis -autostart="random/mainland" -autostart-size=256 -autostart-biome="generic/nubia" -autostart-forpreview -conf=yres:600 -conf=xres:800 -conf=windowed:true
```
Open the console, paste:
```
Engine.PostNetworkCommand({ "type": "reveal-map", "enable": true });
Engine.GameView_SetConstrainCameraEnabled(false);
Engine.SetCameraData(140, 720, -140, 0.87, 0.51, 1);
Engine.TakeScreenshot();
```
Quit.
Python script to generate thumbnails using Pillow:
```
import glob
from PIL import Image
files = glob.glob("screenshots/*.png")
for file in files:
img = Image.open(file)
img.resize((400, 300)).crop((0, 0, 512, 512)).save(file.replace("screenshots/", ""))
```