"VRoxel is an innovative procedural generation system that addresses critical challenges in creating large-scale 3D environments for VR applications. The system tackles three fundamental problems: boundary coherence issues that create visible seams between independently generated chunks, the inability of current algorithms to operate at multiple scales simultaneously, and the performance-quality trade-off that forces developers to sacrifice either visual fidelity or the 72+ FPS required for immersive VR experiences. The system introduces novel boundary-aware Wave Function Collapse (WFC) algorithms integrated with a hierarchical constraint system and streaming Marching Cubes mesh generation. The boundary-aware WFC extends traditional constraint propagation with explicit cross-chunk constraint sharing through innovative boundary buffers, eliminating the notorious ""stitching problem."" The hierarchical constraint system operates simultaneously at global, regional, and local scales, enabling generation of environments with both macro-level structures like mountain ranges and micro-level details. VRoxel's streaming Marching Cubes implementation converts voxel data to optimized meshes with predictive chunk loading based on user movement patterns and adaptive Level-of-Detail (LOD) systems. The two-phase implementation—2D Python prototype for algorithm validation followed by full 3D Unity implementation with parallel processing—demonstrates effective solutions for maintaining structural coherence while achieving real-time performance requirements."