Effects: Using The Contrail Effect Lumion Support Center August 28, 2018 09:50 Updated Follow Video Tutorial: Contrails are white lines in the sky caused by engine vapor of airplanes. Made in version: Lumion 7.0 Pro. Related articles Effects: Remove Effects Effects: Using The Shadow Effect Effects: Configuring The Sun With The Sun Effect Effects: Hide-Unhide Effects Effects: Copy-Paste The Effect Stack