I've always had a lot of difficulty with textures, especially those that require that their parts be transparent to individualize the skin design. Sometimes I got the correct result, sometimes the skin is damaged with an unwanted part, invaded by the transparency. Well this simple video will demonstrate how to cut the part that needs to be transparent without many maneuvers and exhausting attempts until you reach the result. 3ds Max helps us with this. I hope it's useful to someone!
NOTE: To do this you need to have a basic understanding of 3ds Max.
https://www.youtube.com/v/ubJWgtz2qmM&feature=youtu.be