Performance Optimization and World Generation Update — Steam App 4527270 Steam update #1107976

This update focuses on open-world generation, distant object rendering, and runtime performance improvements. Main changes: - Significantly optimized the world object generation system. Trees, landmarks, and large objects now switch between GPU-based distant rendering and CPU-based nearby instances depending on distance. - Reworked the region object runtime system with spatial partitioning and cell-based refresh logic, reducing unnecessary object checks. - Improved distant tree rendering. In current test scenes, overall performance has improved by around 50%. - Improved tree placement rules. Different tree variants now share the same ecological placement points and are selected by weighted probability, reducing overlap and excessive clustering. - Unified terrain height, material, and environment sampling logic, making trees and world objects align more accurately with the terrain. - Impr...