Width (0) and height (0) cannot be <= 0

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Problem with slitscan effect for pre-recorded video

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); }