As mentioned in my previous blog post, it will be possible to choose between these different scales:
Smallest scale: 1:1800
When using 90 Dagree Per Tile, the map contains of just 8 Tiles in total,wich makes a complete map size of 2048×1024 blocks (when using 512 Blocks Per Tile). This results in a scale of 1:18000.
You might think that a scale of 1:1 is the biggest and best.
Biggest recommended scale: 1:10
In reality, however, it is not useful to create a map on a scale of 1:1. This has several reasons:
First of all: Minecraft has a view distance of 32 chunks, with a chunck consisting of 16×16 blocks, this corresponds to a view distance of 512 blocks. (With some mods you can increase this value, but we will stick to the vanilla experience.)
If we take a look at the following table, we will see that a person of about 2 meters height is visible in a 5 km radius (if the earth is a perfect sphere). In Minecraft, we can only see the area of 500 blocks around us, which is roughly one tenth of the real view distance. And keep in mind: higher mountains are visible from much further distances.
|distance||visible object height|
|5 km||1.96 meter|
|10 km||7.85 meter|
|15 km||17.66 meter|
|20 km||31.39 meter|
|25 km||49.05 meter|
|30 km||70.63 meter|
|35 km||96.14 meter|
|40 km||125.57 meter|
|45 km||158.92 meter|
|50 km||196.2 meter|
As a result, almost the entire map would look like a super-flat world that goes up or down a block every now and then. SUPER BORING!
Secondly, the exported image used in WorldPainter to create one Tile (which corresponds to 1° longitude and 1° latitude) would be about 100000×100000 pixels and this size can’t be handled with WorldPainter (JAVA).
Furthermore, the accuracy of the elevation map is not good enough to represent the earth 1:1. The horizontal resolution is only 30 m and the vertical accuracy is about 10 m.
One could imagine that the vertical scale corresponds exactly to the horizontal scale. But there are good reasons to deviate from this assumption.
At a vertical scale of 1:200, Mount Everst, the largest mountain on earth with 8848 m would only be about 44 blocks high.
At a vertical scale of 1:100 it would be 88 blocks high. With the water level at 62, that makes an ingame height of 150 blocks. At a scale of 1:50 the Mount Everest would be 239 (177+62) blocks high. Ideal for the minecraft limit of 255 blocks.
For larger vertical scales, such as 1:25 and 1:10, the Minecraft limit is simply not enough. At least not for the whole planet. For Central Europe, for example, Mont Blanc (4810 m) would be 255 blocks high at 1:25 scale. And for Great Britain even 1:10 would be possible without mods.
Maybe there will be some changes in the future with the Caves and Cliffs update.