[MC-125481] Two-by-two dark oak trees with their dirt generate without ground to spawn on and above grass blocks

The bug

Dark oak trees can generate floating.

To reproduce

Seed: 1359968930092793278
Coordinates: /execute in minecraft:overworld run tp @s -8071.65 105.00 -680.46 -129.30 -52.80

Expected behavior

Dark oak trees would not be able to generate floating.

Related issues

relates to

MC-277536 Pale Oak Trees sometimes generate without proper support

MC-240006 Grass blocks located two blocks below pale oak or dark oak trees aren't converted into dirt when the world generates

Attachments

Comments

migrated 2018-02-15T16:41:09Z

[media][media][media][media][media]

migrated 2018-09-15T00:30:44Z

Confirmed for 1.13.1.

Seed: same as report (5384881648447775625)
Coords: /tp @s -942 63 44782 130 -10

Avoma 2020-12-11T18:13:21Z

Can confirm in 20w49a.

Avoma 2021-01-13T13:40:05Z

Can confirm in 20w51a.

Avoma 2021-01-21T12:39:16Z

Can confirm in 21w03a.

migrated 2021-01-24T15:11:02Z

I think I found another related problem. I was going to create another report, but maybe it can be incorporated into this one (if not, tell me). As you can see, trees spawn on bushes as if the bush were soil, causing it not to touch the true ground. Image with 3 different trees. In 21w03a.

[media]

Avoma 2021-10-25T08:46:58Z

Can confirm this in 1.17.1 and 21w42a. This can be more commonly seen in the 1.18 snapshots due to the new mountain generation and how trees can generate on the sides of large hills.

Version: 1.17.1
Seed: 6221849178047852530
Coordinates: /execute in minecraft:overworld run tp @s -203.83 69.36 -517.54 518.80 -34.94

Version: 21w42a
Seed: -3167415522054264738
Coordinates: /execute in minecraft:overworld run tp @s -3975667.92 96.67 -277.24 -953.99 -26.56

Avoma 2021-10-25T08:47:40Z

@unknown the issue that you're experiencing there is MC-125483. 🙂

Avoma 2021-11-18T17:07:17Z

Can confirm this in 1.18 Pre-release 4.

[media]

The issue with grass blocks located below dark oak trees not converting into dirt when the world generates is MC-240006, so this ticket would be related to that. Additionally, here are some extra details regarding this problem.

The Bug:

Dark oak trees can occasionally generate partially floating.

Steps to Reproduce:

Generate a world with the following seed and teleport to the following coordinates.

Version: 1.18 Pre-release 4
Seed: 2671478887814226195
Coordinates: /execute in minecraft:overworld run tp @s 16894.88 68.05 -2163.79 -937.22 -18.51

Take note as to whether or not dark oak trees can occasionally generate partially floating.

Observed Behavior:

Dark oak trees can occasionally generate partially floating.

Expected Behavior:

Dark oak trees would not be able to generate partially floating.

Avoma 2022-06-21T13:29:10Z

Can confirm in 1.19 and 22w24a.

Version: 1.19

Seed: 4373241205666815302
Coordinates: /execute in minecraft:overworld run tp @s -345.27 65.80 167.25 168.14 -17.97

Version: 22w24a

Seed: -1218851612612966176
Coordinates: /execute in minecraft:overworld run tp @s -750.14 63.47 1544.75 -226.10 -7.07