Let me set up a senario

....You have 3 inputs, a camera as one input, and a video clip as your second input, and a full screen graphic or still image as the third input. You have the video clip playing, and you want at the end of the clip to switch to the camera input...you will use "On completion", and select the camera as your input to switch to...that will cause vMix to automatically switch to the camera input at the end of the clip.... if you want to switch back to the camera, or the graphic before the clip is complete, then you select "On Transition Out", as most likely, you will use cut, wipe...etc...then vMix will switch to which other input you choose to switch to in your setup...

Set up something, and do your test....that is how I learnt a lot of things in vMix over the years...I would spend time in trying different things to see what happens, so that when I have to do it, I know without having to read the manual.....I learn by doing, more than reading....


Hope I helped.....

all correct apart from a graphic photo doesn't dictate to vmix when it's completed. For that you would put a number into the delay box in milliseconds, 5000 = 5 secs (after transition in)

as Joe said make a dummy project and go crazy then filter it onto your main project