Zoom

[Nordic player]

Can somebody tell me how I got more zoom than 4x. Some Grf advertise with more zoom like gets ,I couldn't find or see more zoom. How do I deal with that

[Skarfester]

As far as I know OpenTTD has a maximum zoom level of 4x. The GETS GitHub says they use 4x sprites with 32bpp.

[jfs]

There's five zoom levels possible in the game:
4x out
2x out
Normal
2x in
4x in

The original Transport Tycoon only has the 4x out, 2x out, and normal levels, and OpenTTD added the "zoom in" levels. Graphics sets only need to provide art for the "normal" level, but sets that also provide art for the "4x in" level are called "extra zoom".
Here, a graphics set can be both a baseset graphics set, as well as a NewGRF with vehicles, industries, town buildings, railtypes, or roadtypes.

Graphics sets that only provide the "Normal" level will appear pixelated when you zoom in, while those with extra zoom will typically be sharp also zoomed in.