Does Immersive Engineering Use RF?

Does Immersive Engineering Use RF? Does immersive engineering use RF? Immersive Engineering in the past has used Redstone Flux (RF), one of the most popular energy frameworks. Currently, Immersive Engineering uses something else called “Immersive Flux” (IF). Does immersive Engineering work with RF? Prior to version 1.8, Immersive Engineering used RF as a unit, and