by Amplify_Borba » Wed Jan 17, 2018 2:39 pm
Hello karoliso, thank you for getting in touch and for taking the time to provide the community with your solution to this situation!
To further elaborate on this, the selected Shader Type uses Smoothness, which is Unity's standard and the invert of Roughness. Since Shader Forge uses Roughness, you would need to invert the Smoothness in order to have a similar result, as you correctly did by using the One Minus node.
Don't hesitate to get back in touch if you have any further questions!