Ghost snow layers with WWOO Datapack (William Wythers' Overhauled Overworld)

[xSaVageAU]

Describe the bug
I've come across a visual bug/incompatibility when using c2me with wwoo.
In frozen ocean biomes you can see floating "ghost snow" past the servers simulation distance. It is especially noticable if you set a low simulation distance and have a higher render distance.

To Reproduce
Steps to reproduce the behavior:

1. Use C2ME with William Wythers' Overhauled Overworld
2. Set a low Simulation Distance (as low as it can go. 5?)
3. Set the Render Distance much higher. (10-12 or more)
4. Go to a Frozen Ocean biome and see floating flat "ghost snow" past your simulation distance.
5. It disappears when you get closer to it (loaded in your simulation distance)

Expected behavior
You should not see "ghost snow" floating.

Screenshots

Runtime info (please complete the following information):

• OS: Windows 11
• Minecraft version: 1.21.5
• Mod version: c2me-fabric-mc1.21.5-0.3.4+alpha.0.20

Other mods
fabric-api-0.126.0+1.21.5

William Wythers' Overhauled Overworld v2.5.0 (Datapack)

Checklist

• I am using the official version of the mod.
• I tried the latest development version but the issue persists.
• I searched for similar open issues and could not find an existing bug report on this.

Additional context
I will also be notifying the WWOO developer of this in their discord.

This seems to only happen with C2ME and WWOO paired together. It doesn't happen when pairing C2ME with other worldgen mods/datapacks, and it doesn't happen with WWOO when you remove C2ME.

The behavior of this bug seems oddly similar to the mushroom bug in #336, but this seems isolated to C2ME + WWOO.

[ishland]

This is a rough problem to solve. Properly fixing this would require triggering expensive block updates (post-processing the chunk) before sending the chunk to the client, which would tank performance for high render distances.

The ghost mushroom bug is also the same kind of problem, and the fix for it was basically do cheap lighting checks for them, which eliminates 99% of the ghost mushrooms.

I would put this on hold until I find a way to deal with this with a cheap check.

WWOO is known for longstanding bugs that developer can't fix, so unless he don't have control over this, it better to be fixed on WWOO side.