Prefab Painter Hello, I have put a free, open source prefab painter on GitHub. - the main UI of the prefab painter - GitHub: https://github.com/AlexanderAmeye/prefab-painter Important! The prefabs need colliders in order for the tool to work. Usage Import the project into Unity3D and open the prefab brush tool by clicking Tools -> Prefab Painter. Features - Paint on every type of surface (plane, terrain, sphere,...) - Paint multiple types of prefabs at once - Paint with random prefab rotations - Paint with random prefab sizes - Prefab previewer - Customizable brush size, density - Paint on selected layers - Palette/presets functionality with useful toolbar + more info on GitHub!