Complex Leaf Culling

The mod applies three independent culling strategies that complement one another. Standard Leaf Culling, the first tier, hides the faces that neighboring leaf blocks share while the mesh is built, and it works directly alongside Sodium's occlusion logic. Most culling mods work this way. The second, Extended Leaf Culling (Tier 2), is Sodium-only and cancels rendering entirely for interior leaf blocks surrounded by other leaves, so those blocks generate no geometry at all. The third, Edge Pass Demotion (Tier B), handles canopy edges where leaf blocks only partially qualify, cancelling them when one neighbour below is present.

Dense foliage from mods such as William Wyther's Overhauled Overworld (WWOO) and other modded forests is where the mod is most effective, because standard culling misses many of the blocks it recognises. Testing was done by the author on Minecraft 1.21.1 with Fabric Loader 0.16.0 and Fabric API, including large modded setups of more than 300 mods across hardware that varies between machines. Complex Leaf Culling requires Sodium, and the author notes that Iris Shaders make the Edge Pass Demotion tier give the most visible benefit. An in-game configuration screen is available.