Talk:World generation

The Nether section is confusingly worded. I mean, it says that biomes are generated using a single point (how does that work?) and also, the section says that offset is always zero for parameter points, but not always zero for biome points. What is the difference?100.16.156.64 16:21, 31 March 2024 (UTC)

I have no idea about 'generated using a single point', but I can explain how offset works. The game which biome to generate in a location by choosing the biome whose parameters are the closest to that of the location. With the offset parameter, this causes the biome with an offset farther from 0 to generate less likely, since it becomes less likely for the parameters of the region to be closest to the biome. Thus the temperature and humidity parameters must be closer to the parameters of a biome with a non-zero offset than in comparison to biomes with 0 offset. Manjuew (talk) 14:55, 30 January 2025 (UTC)

I was going through chunkbase, and found rings of badlands and eroded badlands generating at the same side of rivers. Since decision between generation of badlands and eroded badlands only depends on weirdness as long as other conditions are satisfied, I found it strange. Then by comparing these strange badlands bordering other biomes, I find that Peaks and Valleys can also affect it. For a given value of PV, sign of weirdness decides whether badlands or eroded badlands generate, but the generation of badlands and eroded badlands varies on PV. Either that or sign of weirdness is reverse for the 'Badlands biomes' and the 'Plateau biomes'. Manjuew (talk) 14:26, 30 January 2025 (UTC)

As can be seen on the page in the "Badland biomes" and "Plateau biomes", eroded badlands is placed when weirdness is positive, but at H=2, normal badlands is always placed. -- jacobsjo (talk) 14:56, 30 January 2025 (UTC)

But I am pretty sure humidity cannot vary that much. I have compared the badlands to the bordering stony peaks and savanna plateau. When these biome border the badlands, the part bordering the stony peaks generate one variant, then the part bordering the savanna plateau borders another variant, and then the savanna biome borders the first variant. Since savannas can only generate when H=0 or 1, your argument may not be true. Manjuew (talk) 15:02, 30 January 2025 (UTC)

You should check out the seed ingame. The F3 screen will tell you all the current parameters. -- jacobsjo (talk) 15:10, 30 January 2025 (UTC)

I checked 1.18.2 and I find that eroded badlands can generate in both W<0 and W>0, but at different PV. Now that I checked chunkbase in 1.19 or later, this seems to be fixed. I will try in 1.21 in-game too. Manjuew (talk) 15:36, 30 January 2025 (UTC)

Ah yes, in 1.18 - 1.18.2 the eroded badlands in peaks was indeed on negative weirdness. That bug was fixed in 1.19. -- jacobsjo (talk) 15:43, 30 January 2025 (UTC)

While rivers usually generate when PV=valleys on land, middle biomes or badlands biomes generate when E=0 or 1 and C=mid-inland or far-inland. I find that in places of PV=valleys, the same biome generates for both W>0 and W<0. And this biome is always the one that usually generates when W>0. For example, in mountainous areas, Ice spikes always generate in valleys when T=0 and H=0, snowy taiga generates when T=0 and H=2, Plains generate when T=3 and H=2, and so on. Manjuew (talk) 14:11, 13 March 2025 (UTC)

👁 Image
 Done I've added a note to the respective table to add this information. Thanks for pointing this out! -- jacobsjo (talk) 13:32, 21 March 2025 (UTC)

The details about trial chambers is not there in the table in structure generation. Manjuew (talk) 12:58, 29 December 2025 (UTC)

I've added them now. Thanks for pointing that out. -- jacobsjo (talk) 22:52, 29 December 2025 (UTC)

From what I have seen in the game, the humidity parameter condition for lush caves and continentalness parameter condition do not match what is given in this wiki. I have seen lush caves even at V=0.3, and dripstone caves as well around C=0.3. There also seems to not be a specific range of depth for lush and dripstone caves, the range is quite variable. What exactly is happening here? Manjuew (talk) 11:26, 9 March 2026 (UTC)