Embeddium - Au Naturel Edit

Performance Optimizations (2025-12-27)

Occlusion Culling:

• Increased DoubleBufferedQueue initial capacity from 256 to 4096, eliminating repeated array resizing during chunk visibility testing
• Previously caused ~3.86% render thread overhead from ensureCapacity() calls

Render Data Access:

• Optimized SectionRenderDataUnsafe by combining bounds checking with offset calculation into a single method
• Helps HotSpot JIT produce better machine code for repeated memory accesses

Chunk Buffer Sorting:

• Added integer overflow protection for index buffer size calculations
• Converted BitSet to boolean[] for faster access in translucent quad sorting hot loops

Block Occlusion Cache:

• Streamlined voxel shape occlusion testing with identity hash code key packing

Chunk Section Cache:

• Improved thread safety with read/write lock optimization
• Added timestamp-based cleanup for better cache management