[RELEASED] for UE4: Complete Sky and Weather System

I’ll see if I can reproduce . Just to confirm, is the binary installer for the 4.0 UE4.12.3 version? :slight_smile:

That would work, but like I said you can just make multiple keyframes and let them handle the gradual increase for you.

So if you wanted a wind speed of 10 m/s at midday, but it to hit 25 m/s at midnight, put a keyframe with 10 m/s wind speed at 0.5 on the timeline and a keyframe with 25 m/s at 1.0 on the timeline, and will automatically interpolate these values for a gradual increase. So at 6pm it should be ~17.5 m/s.

And if you wanted increases/decreases to be less smooth, just add more keyframes (so a third keyframe at 0.75 with a value of 20 m/s would mean the wind speed would climb faster for the first half of the transition between 10 m/s and 25 m/s). You can also change multiple keyframes via BP, by just accessing them via index (they’ll be zero indexed, so the first on a layer will have index 0, the second will have 1 and so on).