Where are Image Hands in Unreal 4.21.1 or Unity 2018.3.6? [2019]

[eproia]

Hello all,

Been trying all day to access Leap Motion Image Hands in UE4 and/or Unity.

> Example 1
> Example 2
> Example 3

I've got the latest version of Orion, LeapUnreal, and Unity Core Assets.

From what I understand, in Unity, Image Hands should be accessible through core assets examples. In Unreal, it could be toggled in the LeapFloatingHands Blueprint (see Example 3), which has since vanished.

Orion Leap settings still have the option to allow image access, and it explicitly references Image Hands, so I think it's safe to assume it's still supported, but I can't seem to find it anywhere.

I've tried older versions too, going all the way back to 2016, but still couldn't find anything.

Is Image Hands no longer available in the latest versions of the game engine plugins? I've seen no projects, tests, or demos since 2015-2016.

Any help or information would be much appreciated,
Thank you

[AlexColgan]

Image Hands are no longer supported in more recent versions of our assets. This is for a few reasons:

1. To some extent Image Hands were developed as a way to overcome the limitations of our V2 tracking,sSpecifically with occluded fingers and complex hand poses. These issues were resolved with the Orion release in 2016, so that the need for augmented reality passthrough for hands became less acute.

2. Image Hands required a lot of custom rendering work which often broke with new Unity releases. For example, there was a period for several months when Image Hands would not work because of abstractions made in the Unity VR plugin.

3. For most XR applications we found that the infrared-based Image Hands were aesthetically oppressive. They often failed to gel with virtual objects, and artifacts around the edges of the rendering would interact in unpredictable ways with virtual content (e.g. shaders).