here is a beta version of the plugin: mesh.zip ~3.8mb
try it at your own risk!

it will only work with the latest a6/a7 beta!

ent_loadseconduvset() is so fast now that the import/export functions probably won't be needed anymore. i didn't test the new algorithm very thoroughly but it seems to work at a first glance.

my example model isn't that great. it has a poor light map resolution and seams at some areas.

the beta only works for meshes up to 2500 faces.

known issue: the engine will crash if you close it!

some screenshots of your tests would be nice!