Hand tracking with occlusion from real object

[davide445]

Hi, I'm interested to develop AR enabled product interaction design in UE4, want to know if LM will be able to track hands and finger position even if they are occluded from the real object.

[AlexColgan]

They will to some extent, though not very reliably.

[davide445]

Thanks. Considering instead the interaction with pure virtual objects, want to ask if the new Interaction Engine will enable the interaction with specific parts of the object or with only the whole object (so i.e. I will be able to touch or slide a specific part or just hold the whole object).
Interaction Engine is available also for UE4?

[AlexColgan]

If you're talking about interacting with a specific part of a rigidbody, you would have to design the object as a collection of objects for that to work. For instance, a button or slider is an interactive object that may be part of a larger object. Of course if it's a different sort of object (like a mesh that you might stretch or mold), you can just assign different behaviors based on the contact point.

Interaction Engine is not currently available for Unreal.

[davide445]

My doubt was if LP + Interaction Engine are accurate enough to teach the engine a specific point on the object is touched. So not a different component, but just a specific point (or area) of a whole object. From what you say I suppose so is.
This feature require Interaction Engine? If so any official plan for porting it in UE4?
Appear there are a UE4 plugin included in the standard installation, it's not the official one?

[AlexColgan]

Yes, it's generally accurate enough. We do have a plan for UE4 that's currently in the works.

Actually the UE4 plugin you linked is the official one -- just the latest version