HOW TO INSTALL

Start by downloading the .py file. In Blender, go to Edit > Preferences > Add-ons. Click Install in the top bar, search for the .py file and click Install add-on from file. Then, type "Smooth Mesh Fill" in the search bar. Enable the addon and click Save preferences. You are now able to use the addon!

READ ME

The Smooth Mesh Fill addon is visible in Edit Mode in the Sidebar (hotkey N) > Smooth Mesh Fill. First, select one or multiple mesh boundaries. Using the default keymap, this can be done by double-clicking one boundary edge while holding ALT. It can also be done by first making a selection which includes one or more boundary edges and then pressing "Detect Boundaries In Selection". This will automatically select all hole boundaries that touch anywhere in the selection and de-select all non-boundary edges. Press "Smooth Mesh Fill" to create an interpolated patch for the defect.

* Patch Density
This value determines the mesh density of the patch. Increasing this value will create a patch with more triangles, but the process will be more time-consuming. If the addon fails to repair a mesh defect, it is often a good start to increase the Patch Density.

* Enhance Details
This number will affect the amount of detail in the patch (ranging from 0 to 10). Decreasing this value will produce a flatter patch, while increasing will allow a surface with more details.

* Smooth Neighborhood
This factor influences the amount of smoothing for the geometry that surrounds the patch (ranging from 0 to 10). Set this to 0 if the changes to the original geometry should be avoided. Increase the value to create a better transition of the original geometry with the patch.