Yes. Even if everything is agreed, one of the parties MUST appear before the court and under oath swear to a series of statements such as state your full legal name, this decree is just and fair, and judge please sign this decree.
There are ways to do this if the person is stationed overseas in the military.
Then you do a notarized statement that is read into the court record.
IF AN ATTORNEY SAYS YOU NEVER NEED TO GO TO COURT, in the State of Texas, this is untrue.
If you don't appear and "prove up the divorce" eventually the Court will dismiss your pending lawsuit (aka divorce) and you will still be married!