Tex. R. Civ. P. 503.6

As amended through November 19, 2024
Rule 503.6 - Trial
(a)Docket Called. On the day of the trial setting, the judge must call all of the cases set for trial that day.
(b)If Plaintiff Fails to Appear. If the plaintiff fails to appear when the case is called for trial, the judge may postpone or dismiss the suit.
(c)If Defendant Fails to Appear. If the defendant fails to appear when the case is called for trial, the judge may postpone the case, or may proceed to take evidence. If the plaintiff proves its case, judgment must be awarded for the relief proven. If the plaintiff fails to prove its case, judgment must be rendered against the plaintiff.

Tex. R. Civ. P. 503.6