latitude-biome-selection-contract

Snow appearing in a jungle biome during Latitude worldgen is typically caused by base biome leakage, where vanilla Minecraft systems incorrectly reference the original biome instead of Latitude's overridden output.

Interpreting LAT_PICK log entries involves checking the base biome versus the output biome to diagnose contradictions, determining whether inconsistencies stem from write-path placement issues or actual Latitude mod errors.

Base biome leakage in modded world generation occurs when vanilla Minecraft systems read the original biome data instead of the Latitude mod's modified biome, causing unexpected environmental features like temperature mismatches.

Defining a biome selection contract establishes clear rules for how vanilla Minecraft systems should interpret biome data when the Latitude mod modifies it, preventing world generation inconsistencies across latitude bands.

You need a biome selection contract when your mod applies latitude-based biome overrides, ensuring vanilla systems correctly interpret the modified data and preventing debugging contradictions in world generation logs.