Problem with slitscan effect for pre-recorded video

Processing Libraries
2
  • The video library takes some time to “ignite” after we issue a “play” command.
  • Until then, its width & height dimensions are still 0!
  • As a workaround, we can delay() inside setup() until the video is fully ready.
  • This way, when draw() is called back for the 1st time, we’re safe to access the video.
void setup() {
  // ...

  ( myMovie = new Movie(this, "kat.mov") ).loop();
  while (myMovie.height == 0) delay(2);
}