HEUILLARD Arthur
- Moulins
- moulins
- Europe/Stockholm
- Yes
- No
MC-123787
When a (Deep) Warm Ocean or (Deep) Frozen Ocean biome is close to a temperate landmass, the world generation create jaggy, repeating transitions, which tend to follow a North-South or East-West axis.
Notice how the water color changes in the provided screenshots, and look at the biome map given by Amidst. (The world seed is -74854735029189168)
+Note: +
This change seems to be related to a 5x slowdown between 18w15a and 18w16a when generating the biome map with Amidst, which use the GenLayer class of the Minecraft .jar to calculate biome data. It is likely that this slowdown is also present in-game when generating chunks.When a (Deep) Warm Ocean or (Deep) Frozen Ocean biome is close to a temperate landmass, the world generation create jaggy, repeating transitions, which tend to follow a North-South or East-West axis.
Notice how the water color changes in the provided screenshots, and look at the biome map given by Amidst. (The world seed is -74854735029189168)
*Note:*
This change seems to be related to a 5x slowdown between 18w15a and 18w16a when generating the biome map with Amidst, which use the GenLayer class of the Minecraft .jar to calculate biome data. It is likely that this slowdown is also present in-game when generating chunks.
When a (Deep) Warm Ocean or (Deep) Frozen Ocean biome is close to a temperate landmass, the world generation create jaggy, repeating transitions, which tend to follow a North-South or East-West axis.
Notice how the water color changes in the provided screenshots, and look at the biome map given by Amidst. (The world seed is -74854735029189168)
*Note:*
This change seems to be related to a 5x slowdown between 18w15a and 18w16a when generating the biome map with Amidst, which use the GenLayer class of the Minecraft .jar to calculate biome data. It is likely that this slowdown is also present in-game when generating chunks.
When a (Deep) Warm Ocean or (Deep) Frozen Ocean biome is close to a temperate landmass, the world generation create jaggy, repeating transitions, which tend to follow a North-South or East-West axis.
Notice how the water color changes in the provided screenshots, and look at the biome map given by Amidst. (The world seed is -7748547350291891684)
Note:
This change seems to be related to a 5x slowdown between 18w15a and 18w16a when generating the biome map with Amidst, which use the GenLayer class of the Minecraft .jar to calculate biome data. It is likely that this slowdown is also present in-game when generating chunks.
Linux Mint 16.04, Java 1.8.0_162
When a (Deep) Warm Ocean or (Deep) Frozen Ocean biome is close to a temperate landmass, the world generation create jaggy, repeating transitions, which tend to follow a North-South or East-West axis.
Notice how the water color changes in the provided screenshots, and look at the biome map given by Amidst. (The world seed is -7748547350291891684)
Note:
This change seems to be related to a 5x slowdown between 18w15a and 18w16a when generating the biome map with Amidst, which use the GenLayer class of the Minecraft .jar to calculate biome data. It is likely that this slowdown is also present in-game when generating chunks.Note bis: When diffing the MCP-decompiled code for 18w15a and 18w16a, I found this change, which may be the culprit: https://pastebin.com/fQfT5BUW
Since 20w21a, strongholds don't generate in Bamboo Jungles and Bamboo Jungle Hills.
An affected stronghold can be found in seed 14916203336864, at coordinates [-10000, 4384] (see attached screens). Notice that the stronghold is present in 20w20b, but has moved ~80 blocks in later versions
toavoid theBamboo Jungle biome.This is probably caused by the `POSSIBLE_BIOMES` list in `OverworldBiomeSource` missing the Bamboo Jungle (Hills) biomes.
Since 20w21a, strongholds don't generate in Bamboo Jungles and Bamboo Jungle Hills in the Overworld. This only affect "normal" worlds, strongholds still generate in single-biome worlds or other custom biome generation.
An affected stronghold can be found in seed 14916203336864, at coordinates [-10000, 4384] (see attached screens). Notice that the stronghold is present in 20w20b, but has moved ~80 blocks in later versions so that the starting point isn't in a Bamboo Jungle biome anymore.
This is probably caused by the `POSSIBLE_BIOMES` list in `OverworldBiomeSource` missing the Bamboo Jungle (Hills) biomes.
Since 20w21a, strongholds don't generate in Bamboo Jungles and Bamboo Jungle Hills in the Overworld. This only affect "normal" worlds, strongholds still generate in single-biome worlds or worlds with other custom biome generation.
An affected stronghold can be found in seed 14916203336864, at coordinates [-10000, 4384] (see attached screens). Notice that the stronghold is present in 20w20b, but has moved ~80 blocks in later versions so that the starting point isn't in a Bamboo Jungle biome anymore.
This is probably caused by the `POSSIBLE_BIOMES` list in `OverworldBiomeSource` missing the Bamboo Jungle (Hills) biomes.
Same problem in 14w08a.
Note, this also happens on the world migration screen (see
)
MC-123787and the attached image:I'm pretty sure strongholds DO NOT generate in Bamboo Jungle in worlds with normal biome generation. See the added screenshot; even if the stronghold extends into the neighboring Bamboo Jungle, the starting point isn't in a Bamboo Jungle but in a Modified Jungle biome.
Note that once a Bamboo Jungle stronghold changes position, this affects every other stronghold after it, which means that other unrelated strongholds will also change position: this is what caused structures to "move in the world".
Finally, the fact that strongholds generate in single-biome worlds actually gives evidence to my theory: the single-biome BiomeSource will properly report its available biome list, unlike the default OverworldBiomeSource.