The bug
Bottom of waterlogged blocks shows water texture. Some blocks causes z-fighting.
Related issues
is duplicated by
relates to
Attachments
Comments

This issue relates to MC-127004.
This is even the case for slabs and stairs as well.

This isn't a bug. You can see the waterlogged texture from all other sides, so why should the bottom be any different? The Z-fighting issue is MC-127004.

"You can see the waterlogged texture from all other sides" this is not true, the back of waterlogged stairs shows no water, only on distanced because of the ticket you mentioned, but not up close, unlike the bottom.

FVbico, the reason why the z-fighting occurs on the bottom face is the same as MC-127004, the model of the water block is incorrectly placed/sized. There is more precision in the front of the depth buffer, I.E. things closer to you are rendered more accurately than things that are rendered further away. When you go far enough away, the water model and the block model begin to occupy the same space. Two primitives occupying the same space cause z-fighting, It doesn't matter if it happens far away or close up.
This ticket is not about z-fighting, it says:
"Bottom of waterlogged blocks shows water texture"
This is intended, if we didn't see the water texture on the bottom of the sign for example, then we would see the sky (or the top face of the water block).
If you want this report to be closed as "Works as Intended", please provide a credible source where a developer says that this is intended.
This report is linked as related to MC-127004 for a reason; but the fix for this does not necessarily fix that bug as well, so they're not the same.
Also, this report is not about the z-fighting, but about the water being visible below waterlogged blocks at all. Look at the screenshots with slabs or stairs; I would say this is definitely not intended.

Affects 18w14a

Affects 18w14b

Affects 18w15a, but the water is grey?


Affects 18w16a

Affects 18w20b

Affects 18w20c

Affects 18w21a

Affects 18w21b

Affects 18w22a

Affects 18w22b

Affects 18w22c

Affects 1.13-pre1

Affects 1.13-pre2

Affects 1.13-pre3

Affects 1.13-pre4

Can confirm in 1.13-pre5.
Please keep the ticket up-to-date.

Can confirm.

Affects 1.13-pre6

Affects 1.13-pre7

Affects 1.13-pre8 and 1.13-pre9

Affects 18w30b

Affects 1.13.1 see attached screenshot

Affects 1.13.2-pre2 aswell
Both are already added to the affected versions list

19w13a affected

Affects 19w13b, can I request ownership?

Affects 19w14a

Affects 1.14.2

Affects 1.14.3

Confirm in 1.14.4pre1,2 as of changelogs, confirm current versions with additional proof via MC-155876

Work on 1.14.4 release
This issue has been fixed in 1.15-pre1.
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Confirmed in 1.15-pre1, 1.15 base (1.15.0), 1.15 randomly throughout, and in 1.16 snapshots
Issue Not Resolved

@unknown can you show a screenshot in 1.16.2? with F3 screen enabled

Can confirm that it always happens in 1.16.4 and 21w03a with transparent blocks, and sometimes with non transparent
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I think full transparent blocks needs waterlogging support as well - I guess this will fix this issue, and also will have clear view (without blue tint) like shown here:
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