26.1.2 Block Entity Culling

📦 Block Entity Occlusion Culling (Minecraft 26.1.2)

Block entities (chests, ender chests, signs, banners, skulls, decorated pots, bells, and beacons) submit individual draw calls every frame. In large storage rooms or automated sorting facilities, this produces heavy GPU draw call contention.

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📋 Block Entity Culling Infobox

Property	Value
Target Pipeline	BlockEntityRenderDispatcher.tryExtractRenderState(BlockEntity, float, CrumblingOverlay) (3 arguments)
Enclosure Detection	Checks all 6 neighboring faces: up, down, north, south, east, west
Conservative Mode	Enclosed-only check on LOW profile
Aggressive Mode	Full raycast sightline verification on MEDIUM, HIGH, SUPER
Result	Returns null RenderState to skip render submit

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🔍 Enclosure & Sightline Verification Architecture

               [UP]
                │
   [WEST] ── [CHEST] ── [EAST]
                │
              [DOWN]

1. 6-Sided Solid Enclosure Fast-Pass

BlockState up = level.getBlockState(pos.above());
BlockState down = level.getBlockState(pos.below());
BlockState north = level.getBlockState(pos.north());
BlockState south = level.getBlockState(pos.south());
BlockState east = level.getBlockState(pos.east());
BlockState west = level.getBlockState(pos.west());

if (up.isSolidRender() && down.isSolidRender() && north.isSolidRender()
    && south.isSolidRender() && east.isSolidRender() && west.isSolidRender()) {
    return true; // 100% Occluded — skip rendering
}

2. Line-of-Sight Raycast Check

On MEDIUM, HIGH, and SUPER profiles (cullAllBlockEntities = true), Camera Culling projects a ray from camera position to the block entity center $(X + 0.5, Y + 0.5, Z + 0.5)$ to drop occluded render states.

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🔗 Related Pages

• Sign & Hanging Sign Culling
• Entity Occlusion Culling
• Architecture & Mixins
• Return to MC 26.1.2 Overview