ClothRetopo is a Geometry Nodes modifier designed to simplify the retopology process for 3D garments imported from simulation software like Marvelous Designer or Clo3D. Users can drag and drop the asset from the Blender Asset Browser onto a base mesh and target their high-poly imported clothing.

The tool enables a setup where users perform retopology operations on a flat plane in a top orthographic viewport while the modifier automatically wraps the new geometry onto the 3D model in real time. This approach allows for clean topological flow generation on complex garments without needing to manually snap vertices in 3D space.