Picture this scenario. You started your wonderful render at high resolution. Everything looks great. After a couple of hours you check the progress and realize that you forgot to check the “Alpha Channel” option. The default sky from Lux shows in your image. Obviously you mentally kick yourself and reach for the “Quit” option in Lux. Hold that mouse! You don’t need to waste hours of rendering.
Instead watch the following video tutorial and see how you can have perfect sky replacement in minutes without losing hours of precious time. You’re welcome 🙂
Watch it on YouTube for the HD version.