This plugin can build procedural custom static meshes from within the editor that project onto any mesh or landscape with smooth blending so it looks like it is part of your existing scene. It can also capture the surface height to a mesh or texture.
A grid based multipurpose tool that creates terrain blended rock and cliffs, captures height and auto paints vertex colors
The USurfaceMesh plugin was built to create custom fit static meshes that fit anywhere. You can project the mesh to the surface of any other mesh or landscape and then customize it with various height textures. The plugin allows you to stamp the mesh to the surface and then recreate it if you want to change the mesh further. It also allows for easily capturing the height of the surface below and rendering various data out as render target textures which can then be utilized repeatedly throughout the plugin to produce multiple variations. Easily interchange textures to customize the height as well as height noises and height detail textures that layer up height data together. It can also mask and flatten the mesh using textures and using the included settings.