I am looking for some mesh library/tool/utility


I’d need a mesh tool that allows me:

  • to generate indices from a given triangle list
  • cleaning any incomplete, degenerate or multiple triangle/vertices
  • optimize the mesh reducing the triangle number by merging close vertices

is there anything?

All that you want is done by Assimp… as mesh loader.
Or you can use meshlab to clean up your meshes.