[MC-234] Digging straight down glitches out the breaking animation (Z-fighting)

Yes this has been in the game for a while now and seems to be do to client server lag. And since in 1.3 and it runs an internal server this bug was made a singleplayer bug as well.

migrated 2012-10-24T22:20:48Z

I have also seen this become an issue with the introduction of unified MP/SP logic.

migrated 2012-10-24T22:23:21Z

I've seen the same thing when digging straight up too. For example, when chopping down a tree.

migrated 2012-10-25T04:26:17Z

This appears to be about the breaking animation z-fighting with the block being broken rather than the block reappearing.

migrated 2012-10-31T11:32:50Z

This used to happen only when looking straight down or straight up, but I've now seen it looking at eye level too. Perhaps expanding the model of the 'cracking' block so it doesn't z-fight?

migrated 2012-10-31T21:37:38Z

MC-1491 reports that this also affects digging straight up.

migrated 2012-11-30T00:10:03Z

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

migrated 2012-11-30T21:04:08Z

Still happens to me sometimes in 1.4.5

Howzieky 2012-12-16T04:28:01Z

still a bug in 12w50b

migrated 2013-01-27T16:55:17Z

Still happens in 1.4.7

migrated 2013-04-14T01:13:21Z

Happens to me in 1.5.1 when digging straight up (most noticeable on trees).

migrated 2013-09-06T12:07:11Z

Affects snapshot 13w36a.

migrated 2014-03-02T07:50:47Z

Affects Mac OS X Maverics.

Jeuv 2014-07-09T20:18:07Z

Confirmed in 14w28a.

migrated 2014-08-11T19:02:41Z

Still happens in 14w32d

C_moneySmith 2014-11-03T21:26:21Z

confirmed for 1.8

migrated 2015-05-09T14:13:57Z

Mac Yosemite, Minecraft 1.8.4, confirmed still happening.

migrated 2015-07-29T22:04:18Z

Confirmed for Snapshot 15w31a, only happens when centered on the block though

migrated 2015-11-02T15:11:34Z

Confirmed for 15w44b.

The breaking animation is invisible now.

migrated 2015-11-09T21:14:04Z

Affects 15w45a.

migrated 2015-11-12T14:47:48Z

Affects 15w46a.

migrated 2015-11-18T19:12:08Z

Affects 15w47a.

Issue more likely to reproduce while sneaking.

migrated 2015-12-02T04:50:01Z

Affects 15w47c.

migrated 2015-12-03T04:05:09Z

Affects 15w49a.

migrated 2015-12-17T20:10:11Z

Affects 15w51b.

migrated 2016-01-13T22:41:09Z

Confirmed for 16w02a.

migrated 2016-01-29T05:34:08Z

Affects 16w04a.

migrated 2016-02-06T08:10:51Z

Affects 16w05b.

migrated 2016-02-10T16:44:07Z

Affects 16w06a.

migrated 2016-02-15T16:54:07Z

Affects 16w07a.

migrated 2016-02-16T17:49:37Z

Affects 16w07b.

migrated 2016-02-17T17:00:56Z

Affects 1.9-pre1.

migrated 2016-02-18T20:15:58Z

Affects 1.9-pre2.

migrated 2016-02-25T13:00:02Z

Affects 1.9-pre3.

migrated 2016-02-27T11:20:17Z

Affects 1.9-pre4.

migrated 2016-03-09T18:30:23Z

Affecta 1.9.1-pre1.

migrated 2016-03-15T23:03:12Z

Confirmed for 1.9.1-pre3.

migrated 2016-04-04T17:44:50Z

Affects 1.9.2.

FaRo1 2016-04-29T17:49:40Z

Affects 1.9.3-pre2.

migrated 2016-05-05T23:42:02Z

Confirmed for 1.9.3-pre3.

MalbaCato 2016-05-11T16:13:26Z

Confirmed in 1.9.4

migrated 2016-05-18T21:45:36Z

Confirmed for 16w20a.

migrated 2016-05-25T22:52:33Z

Confirmed for 16w21a.

migrated 2016-05-26T22:48:03Z

Confirmed for 16w21b.

migrated 2016-06-03T01:37:25Z

Confirmed for 1.10-pre1.

migrated 2016-06-07T22:47:48Z

Confirmed for 1.10-pre2.

migrated 2016-06-08T21:32:25Z

Confirmed for 1.10.

FaRo1 2016-06-09T14:53:48Z

When I look straight up, I get a breaking animation in 1.10. Only when I look straight down it's invisible.

migrated 2016-06-22T16:56:29Z

Confirmed for 1.10.1.

FaRo1 2017-01-01T21:36:57Z

@unknown For me the breaking animation just disappears when I look exactly 90° down, it doesn't look like in your picture. Can you please make a video of it?

wobst.michael 2017-01-01T22:49:31Z

@unknown no, I don't have any capturing software installed. Besides it wouldn't look any different than in the attached screenshot.

migrated 2017-07-16T16:00:33Z

Can confirm for 1.12

bemoty 2017-08-10T17:46:25Z

Can confirm for MC 1.12.1.

migrated 2018-05-14T15:10:32Z

The game uses this bit of rendering magic to prevent z-fighting for the breaking animation:

GlStateManager.doPolygonOffset(-3.0F, -3.0F);

However, this seems to be ineffective at nearly perfectly straight-on viewing angles. I think this is due to the second parameter, the constant, being too low. I tested changing this to

GlStateManager.doPolygonOffset(-1.0F, -10.0F);

And was not able to reproduce this bug anymore, nor could I find any new issues caused by this change.

Using MCP names, this change was made in RenderGlobal.preRenderDamagedBlocks.

migrated 2018-07-06T03:20:50Z

WONTFIX, bug is result of incorrect user action 😉

FaRo1 2018-07-06T10:54:15Z

Sorry mate, you're too late for that joke, it's already fixed. And even if I do /execute at @e run summon ender_dragon and get a bug with it, it's still valid.

migrated 2018-07-10T22:13:39Z

lol this bug was fixed in pre6 but has been re-added in pre7: Can confirm for pre-7

qwerty23495 2018-07-12T08:55:21Z

Do you have any evidence of this? GIF or video showing version would suffice.

kumasasa 2018-07-26T22:16:29Z

Still in 1.13, see

[media]

(triggered by sneaking) and

[media]

(triggered by changing tilt angle)
^{Not my videos, cortesy of Discord}

migrated 2018-08-01T10:33:47Z

affect 18w30b

migrated 2018-10-14T02:08:59Z

Confirmed for 1.13.1.

migrated 2018-10-30T16:14:47Z

Not fixed for 18w43c.

migrated 2018-10-30T16:15:37Z

in fact it's not fixed in 18w43c sorry to have believed

migrated 2018-11-25T06:22:53Z

Still occurring in 18w47b...

migrated 2018-11-30T20:28:57Z

This was fixed in 1.13-pre6 (at least my suggested code adjustment was implemented by Grum) however it still seems to affect a very small amount of players. I have a feeling this is mostly players with Intel GPUs. The second example video posted by Kumasasa shows an Intel GPU in the debug screen.

So please, if you can reproduce this, give us the model of your GPU, or just post a screenshot with F3 open.

TheBoy358 2019-01-18T16:42:31Z

I have difficulty to reproduce this bug so i think it was fixed ?

galaxy_2alex 2019-04-23T05:11:57Z

Closing as Fixed.

migrated 2019-07-29T21:00:12Z

It is still happening in 1.14.4

GPU: NVidia Geforce GTX 1080

FaRo1 2019-07-29T23:17:04Z

Can you make a screen recording of it with F3 open, please? And does it also happen to you in 1.13.0?

migrated 2019-08-01T23:58:04Z

Yeah, I can make one. Forgot to set this issue on watch, so sorry for the late response.

migrated 2019-08-02T00:26:07Z

It affects 1.14.4 but not 1.13.0.

[media]

FaRo1 2019-08-02T05:38:39Z

1. Why are you moving so much? 2. You're digging up, not down. 3. I see no buggy animation.

migrated 2019-08-02T16:03:31Z

I'm moving around as it makes the bug appear more consistently.
Is there a problem with me digging up? And it only appears when I dig up so far.
You can clearly see it in the video I posted, the breaking animation flickers on and off. You probably won't see it if you have a 30hz monitor.

FaRo1 2019-08-02T16:22:11Z

This bug was consistent and didn't depend on movement, the animation was completely gone and it only happened downwards.

migrated 2019-08-02T16:23:08Z

So what you're saying is that I should make another bug report. Also MC-9743 complained of the same thing looking up.

FaRo1 2019-08-02T16:39:01Z

Only if it isn't described already by MC-35507.

migrated 2019-08-02T16:44:07Z

That bug requires mipmaps and a certain angle. You don't need mipmaps to have this bug appear.

violine1101 2019-08-02T17:06:05Z

@unknown, the video you posted is irrelevant to the ticket posted here. Please create a new report about it. However, just like @unknown, I cannot see anything faulty in the video, so if you create a new ticket, please point out exactly what the buggy animation is.

migrated 2019-08-02T17:10:13Z

Alright, just created one with a better video.