Hey everyone! I have a question about how Physics work in ue4.
For example, I was trying to make an elevator that only works when there’s enough weight on it, but i can’t seem to get it to work, like when the elevator moves down it leaves the items behind and stops, then the items fall and it starts, then repeats. How do I get the items to move with the elevator? To clarify, the elevator is not simulating physics, but the items are. Do you have any suggestions on how to make something like this? I hope this isn’t something super obvious that I’m just not thinking of! Thanks in advance!
I just tried it, and it was doing the same thing. I also tried everything I did when it was an Actor, and tried using the Floating Pawn Movement too, but got the same results. When I increase the speed, and the elevator moves up, it sends the items flying upward, and when it moves down, the items get left behind instead of jittering like in the video. I’m using an Overlap Event to check if stuff is on or off of the elevator, if that matters.
I’ve also tried these too:
Changing Tick Group on both the elevator and the boxes
Attach Actor to Component and Attach Actor to Actor, with and without Weld Simulated Bodies
Get Overlapping Actors and Set World Location / Add World Off Set
Hi, it seems like your cube is leaving collision when your elevator moves. You should consider moving the overlaping actors with the elevator when it’s being animated.
Also, you might want to have a look at this experimental checkbox called Motion-Aware Collision Detection, it did some testing and seems to improve things when it comes to sudden interpenetration and sudden spike in velocity.
you might want to turn off the boxes’s physics when they attached to the platform.
Or like @Leomerya12 said. use character for box class.it might be a valid workaround.because I see the character didn’t jitter while the platform moves.
Thanks, I’ll check into Motion-Aware Collision Detection. Also how do I move the overlapping actors with the elevator when it’s being animated? I tried Set World Location / Add World Off Set, is there another way?
I you want to keep the Physics on then both Set World Location / Add World Off Set should do the work, make sure to check Teleport on the node so the movement doesn’t count as acceleration.
