title: Complex Text Animations with FFMPEG
body: <p>I'm trying to figure out how the text animations used by <a href="https://storycreatorapp.com/demo" rel="nofollow noreferrer">https://storycreatorapp.com/demo</a> (click on &quot;text&quot; on the left sidebar to view them) are created.</p>
  <p>I understand that the drawtext filter usually is used to draw the text, but what filter is used to hide the text at the beginning of the text animation (most of the animations have text seemingly to slide out from nowhere right in the middle of the screen)?</p>