Stop chunking together voxels.

[bfops]

They can still be requested/delivered in blocks if there are performance motivations, but less of the code should care about the concept of terrain blocks/chunks, and care only about voxels. Mesh extraction works on arbitrary edges now, so it can be done at the voxel level.

[bfops]

I'm working on this on the chunkless branch.

[bfops]

Load/unload state is tracked per-edge instead of per-chunk. Loading is noticeably slower. The client SurroundingsLoader is still working on chunks, which might be part of the reason.

[bfops]

Load speed improved.

[bfops]

The mesh seams are bigger in this branch

[bfops]

Two blocking issues:

• Load speed is still noticeably slower
• Edges aren't properly unloaded!

[bfops]

Edge loading seems fixed.. load speed is still bad.

[bfops]

Edge unloading still broken

[bfops]

I think the problem has to do with when edges from a higher LOD don't have corresponding edges in a lower LOD (ones going through the middle of a lower-LOD voxel). The code that used to downgrade chunk LODs should be responsible for this now.

[bfops]

The chunk unloading logic is also broken.

[bfops]

I think edge reloading is fixed (there was a bug in rust-isosurface-extraction), but chunk/edge unloading logic is still shaky. Also framerate and load speed are bad.

[bfops]

Brushes are broken too