Powder Snow causes Z-Fighting with Falling Blocks
When you place two powder snow on top of each other, a sand on top of that, and then break the top powder snow, the sand falls through the powder snow and causes some Z-Fighting where it trys to show both the sand and snow texture.
Linked Issues
Created Issue:
Sand falling through Powder snow causing sand to become inside of other blocks.
When you place two powder snow on top of each other, a sand on top of that, and then break the top powder snow, the sand falls through the powder snow and also causes some texture glitching where it trys to show both the sand and snow texture. The sand then breaks when it hits the ground inside the bottom powder snow. If you have, say, an open fence gate below that, the sand loses its hitbox and starts to fall inside of the open fence gate; same with cobwebs. Then after a while the sand breaks. If the sand is on top of a non walk through able block, it breaks instantly.
Sand falling throughPowdersnow causing sand to become inside of other blocks.Powder Snow causes Z-Fighting with Falling Blocks
When you place two powder snow on top of each other, a sand on top of that, and then break the top powder snow, the sand falls through the powder snow and
alsocauses sometexture glitching where it trys to show both the sand and snow texture.The sand then breaks when it hits the ground inside the bottom powder snow. If you have, say, an open fence gate below that, the sand loses its hitbox and starts to fall inside of the open fence gate; same with cobwebs. Then after a while the sand breaks. If the sand is on top of a non walk through able block, it breaks instantly.When you place two powder snow on top of each other, a sand on top of that, and then break the top powder snow, the sand falls through the powder snow and causes some Z-Fighting where it trys to show both the sand and snow texture.
is duplicated by
Relates to MC-206608.
relates to
relates to
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We're tracking this issue in MC-206113, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as Fixed. Please check the Fix Version/s field in that ticket to see in which version this behavior was or will be fixed.
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This was the fix for MC-206113.
I can confirm although, like [Mod] violine1101 said, this was the fix of MC-206113.
Relates to MC-206113.

I mean there's no way to fix this without shrinking the model of the 'fallingblock' entity making falling sand look slightly weird when it lands/starts falling.
and even then during certain situations it will still start z-fighting.
ps. as of now I can think of no way to completely remove z-fighting without mojang doing an overhaul somewhere in the rendering code.
Please attach a screenshot.
Screenshot:

And here's a video: Minecraft 20w46a - Singleplayer 2020-11-20 10-19-07.mp4
I don't know if this would be possible to implement, but since powder snow isn't affected by gravity, couldn't they code it to check if the block in contact with powder snow is affected by gravity, and if it is affected by gravity, not allow it to fall through the snow and instead stack on top of it?
Can confirm in 20w51a.
Can confirm in 21w03a.