Biome Painter

BiomeStamper is a Unity editor tool that provides procedural placement and management of trees and terrain details (e.g., grass, rocks) within user-defined biome areas on Unity terrains. It includes no pre-made content assets (trees, textures, etc.)—instead, it works with your existing terrain prototypes. The tool is highly customizable: users can define multiple biome areas with shapes (box, sphere, polygon), adjust density via noise and masks, select which tree/detail prototypes to use, set spacing and scaling ranges, and perform stamping/clearing operations globally or per-area. It's not genre-specific but particularly useful for projects with outdoor environments, such as open-world games, simulations, adventure titles, or any genre requiring natural terrain vegetation (e.g., RPGs, strategy games, racing with scenic tracks). It enhances realism and workflow efficiency without runtime overhead.