LC²H [Lost Cities: Multithreaded]

A performance-transforming addon for the Lost Cities mod, delivering unprecedented city generation speed while preserving the original aesthetic.

Why the Name Change?

Originally called "Lost Cities: Multithreaded," the project was renamed to LC²H, which more accurately reflects its redesigned architecture. The new name emphasizes the use of two specialized task threads and additional optimization algorithms like Frustum Culling.

Important Compatibility Warning

The C2MEF mod is incompatible with LC²H and can cause instability when used together. It's recommended to install only one of these mods.

Performance Advantages

The addon restructures Lost Cities' internal mechanisms by moving resource-intensive calculations to background processing threads. Technical achievements include:

• Significant acceleration of chunk loading
• Fast processing of city-related commands
• Advanced multithreading system compatible with other optimization modifications
• Built-in support for DH LoD, C2ME and Sinytra Connector
• Numerous bug fixes and stability improvements

Real Results

Tests on Intel i5-12500H and AMD Ryzen 5 8400F processors confirmed radical reductions in generation delays. City chunks now generate as fast as or faster than regular terrain.

Comprehensive Optimization

The mod includes:

• Protection against data absence failures
• Removal of floating vines for clean skylines
• Optimized chunk placement planner
• Safe synchronization of multi-threaded operations
• Prevention of memory leaks in city caches
• Protection against null pointers in all work processes
• Stream control to prevent unauthorized tasks

Management and Monitoring

Available commands:

/lc2h - display scheduler statistics
/lc2h hud on|off - toggle monitoring interface
/lc2h power status - display active performance profile
/lc2h cache flush - clear memory caches

The mod offers three performance modes: maximum performance, balanced, and power saving.

Continuous development

LC²H is constantly updated and focuses only on the most current versions of The Lost Cities. After updates to the original mod, patches for LC²H are typically published within 24 hours.

Requires Minecraft 1.20.1 (Forge) and The Lost Cities 1.20-7.4.5 or newer.