Chunking

Chisel doesn't turn your level into one huge mesh. It splits it into pieces, one per material, divided into chunks of space (32 m), so Unity only draws the pieces the camera can see, and an edit only rebuilds the pieces it changes.

• This happens automatically; there is nothing to set up.
• Surfaces are never cut at a chunk's border.
• Large models are divided further, so their lighting (lightmaps) still fits.
• Bake Unity's occlusion culling and the parts of the level you can't see aren't drawn.