Sky replacements are fairly common in photography these days. Not everybody is shooting a camera with a wide enough dynamic range to always capture a well-exposed subject without a blown out sky. Or, perhaps the sky on the day you were shooting is just a bit boring. Typically, we take to Photoshop to do the sky replacement and blend it in with our foreground scene.
Luminar 4, though, is coming with a new AI Sky Replacement feature, first mentioned last month. Now, Skylum has released a video showing the sky replacement feature in action in the latest beta edition of Luminar 4.