Unity Mesh Importer

Unity Mesh Importer is a utility that applies modifiers to its meshes at the time of importing a 3d model.

List of modifiers:

• Combine - allows you to combine two arrays of UV coordinates into one array (provided that these two are two-dimensional). The X and Y fields of the second array will be written to the Z and W fields of the first array. The second array will be cleared.
  

• Manual - allows you to write a specific value to any mesh array. This will allow it to be used, for example, as an origin point.
  

• Mesh - allows you to transfer data from an external mesh to this mesh. For example, you can replace the Tangent array of this mesh with the Normal array of another mesh.
  

• Collapse - сoncatenates all untouched UV arrays in this mesh. This parameter depends on the generateSecondaryUV value in the model import settings.
  

• Bounds - allows you to set the position and size of the bounds of this mesh. Useful in case you are animating a mesh and it goes beyond the original boundaries, which can lead to the camera clipping the render.
  

How to use:

To apply import modifiers to a mesh, it is necessary to select not the model object in the project, but the mesh itself inside it. This utility overrides the default Mesh Inspector behavior.

Project Setttings:

To combine all untouched UV arrays in all meshes in the project, there is a corresponding option in the project settings.

Notes:

This utility stores import settings in the meta file. If there are any errors, then remove the line userData: ... from the meta" file.