An authored rain and wet-surface system for URP with hard-ground, water, and soil responses, roof mapping, splashes, drips, and wet materials.Create convincing rain scenes with one configurable weather rig and explicit surface presets. Rain impacts are routed to hard ground, water, or soft soil; roof maps and surface masks keep the response controllable, while splashes, drips, wet shading, and six authored props complete the presentation.Rain, splash, roof-drip, and wet-surface layers.Hard Ground / Water / Soft Ground surface response presets.Roof map workflow with rebuildable surface classification.Lantern Lane, Rain Courtyard, and Materials Lab samples.Six original Blender prop models and editable integration API.Requirements: Unity 6 / URP 17.0.3 desktop, Linear color, Windows Direct3D 11. Bounded/statistical GPU impact events; not a full liquid simulator or universal platform/FPS guarantee.AI was used during code refactoring and scene preparation.
