When you arrive at the polling place, you will be asked to present one of the seven (7) acceptable forms of photo identification, unless you are a voter with a permanent exemption on your voter registration certificate. If you do not possess a form of acceptable photo identification and you cannot reasonably obtain one, show a supporting form of identification to the election official and execute a Reasonable Impediment Declaration. The election official will ask if you have moved and then ask you to sign the list of people who have voted in the precinct.
https://www.votetexas.gov/voting/how.html
Depending on the type of election – local, statewide, national, or combination – you will be handed: A paper ballot on which you will select your choices and which will be counted by hand; A paper ballot on which you will select your choices by darkening an oval, completing an arrow, or “marking” with the aid of a voting machine; or A slip of paper with a numerical access code or, in some counties, a ballot activator card. In the next available voting booth, enter your code or card and let the on-screen instructions guide you through the process of electronic voting.