The video monitor in the Node Editor enables you to preview the node and control when the buttons and timer will appear and disappear. The fade in and fade out effect needles mark where the elements start to fade in and where the fade out effect starts.
Appear & Disappear Effects
You can determine when buttons appear in the video and how quickly they fade in. To adjust the effect type go to the Project Settings panel and switch ‘on’ the Element Effects. To help make your buttons and timer appear and disappear exactly when you want them, pull the red time scrubber to the correct spot and move the start-fade end-fade controllers at the bottom.
The critical time is the last 2.5 seconds before the end of any node. You cannot feature a choice at this time, so the interactive elements become inactive in this section of the node. This means the buttons are visible, but cannot be clicked on by the viewer.
Time for Selection
It’s important to make sure your viewers have enough time to read what the buttons say and make their choice, so when using the fade in/out effect, keep in mind that the elements take 0.6 seconds to appear and disappear.