Difference between revisions of "Rainfall"
(Created page with "Rainfall is a world generation layer. Its value is displayed in the F3 debug screen. Rainfall is used to determine which Trees, Crops, and Animals can spawn in a chunk. It als...") |
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Revision as of 16:23, 15 April 2020
Rainfall is a world generation layer. Its value is displayed in the F3 debug screen. Rainfall is used to determine which Trees, Crops, and Animals can spawn in a chunk. It also effects the terrain generation: very low rainfall areas are more likely to have sand replace dirt and to have dry grass replace grass.
Rainfall varies based on three conditions: biome (ex:Swamp, Plains, Rolling Hills), Latitude (Z coordinate), and random local variation. Rainfall is very high near the Equator (z=0) and very low near the Horse Latitudes (z=+/-10,000). Deserts are common at these latitudes. Since version 0.83.5, the Horse Latitude does not remain at z=10,000, but can range +/- 2000 (that is: from 12k to 8k) around the old location. The area follows a sine wave pattern with a period of 120,000 blocks. The result is that the world's deserts will shift north or south as you travel east or west.
Old Rainfall pattern, with lowest rainfall about 10k blocks north or south of z=0
New Rainfall pattern with the low rainfall band varying from z=12k to z=8k as it moves East to West.
