Hey, I’ve been on this problem for 40 hours or so… and so far no results.
I’ve switched from unity to unreal engine 4 for the physical blending on animation and I am trying to recreate what I had there.
I want a collision system that can let me pinpoint exactly which bone on my skeletal mesh collides with something, and if that something is another character, which of its bones collided with my character, so I can apply a specific force to both. It is a simple task, that of getting both bones’ names,their velocity and their mass. In unity, I had colliders as child objects to the bones, and when hit events were triggered, I looked at which collider triggered it. Right now, the task seems impossible in Unreal. Here is what I know:
Character Collision is not really documented. From what I experienced, only the root capsule(which is not precise enough for what I want to do) is able to hit something if this something is not simulating physics. For exemple, if I make another collider as a child of the capsule and place it on the hand of the character it will pass through anything that is not simulating physics. Since the other thing I want to hit is an animated body, simulating physic on the skeletal mesh itself won’t work. Physics Assets are also out of the solutions because of this weird behavior, and only interact with physics driven objects. Hit is out of the way. But what about overlap? Well, character’s capsule collider lets us use overlap events on child colliders,unlike hit events. The only problem is that even though the collision is detected, sweep result is never populated, which makes me wonder what is going on. The overlap is registered, but the trace that detected the overlap says it never hit anything. I need this sweep result for the impact point, so I can pinpoint which bone is near this point on each body. I’m at an impass right now, and I am wondering if this is possible at all.Saw multiple post on this subject already, none answered. Any one got an idea on how I could achieve this?
