Soften edges value


I would deeply appreciate if someone can furnish me with a brief info on soften edges option (default value 45 deg) and its impact on a imported model - especially trees.

Thank you in advance

The soften edges determines how the imported faces are going to be smoothed. A value of 0 will leave sharp edges on the models, while a value higher than zero will make the edges appear smoothed. For importing trees, a value of 45 is recommended

I thank you very much Nicola.