Realistic Terrain and Hydrology Generation with Particle-Based Hydraulic Erosion
2025-02-07
This article presents a particle-based hydraulic erosion simulation technique capable of generating realistic terrains with rivers, lakes, and other hydrological features. By extending a previous particle-based erosion model and introducing 'stream maps' and 'pool maps' to track water flow and accumulation, the system simulates river migration, waterfall formation, floodplains, and other geographical phenomena. The method is simple, efficient, and tightly coupled with the terrain, producing highly realistic landscapes that remain smooth even during real-time rendering.