[Orion] Rigged Hands Set-up

[Andrewx1988]

I am trying to set up rigged hands to work with Orion and Oculus, but I can't seem to get it right, and I can't find any tutorials on how to do this. Can anyone point me in the right direction?

[Joe_Ward]

In the latest assets (released yesterday), there are RiggedHand and RiggedFinger scripts. However, it isn't an easy process to get right. Here are the steps I've come up with, but I don't think they are 100% correct, since I get different levels of success in the results after performing them with different models. Hopefully they will get you headed in the right direction.

1. Import model
2. Set scale — roughly the same size as the existing models
3. Drag model to hierarchy
4. Add RiggedHandScript
5. Add Empty object, rename to Hand
6. Add an Empty object to Hand, name it Offset
7. Add Empty object to Offset, rename to Arm
8. Drag root arm bone to Arm
9. Drag root hand bone to Offset
10. Assign Hand to the RiggedHand script palm transform
11. Assign Arm to the RiggedHandScript forearm transform.
12. Adjust the Offset translation to put the palm position of the mesh at 0,0,0 (It is helpful to place a small 3D primitive at the origin as a marker)
13. Set Model Finger Pointing and Model Palm Facing in RiggedHand Script based on the rest pose of the hand. These are direction vectors and are easy to set if the hand is aligned with the axes.
14. Add a HandController object to the scene and position it so that you can see the hands in the Game view.
15. Assign your under-construction RiggedHand object to the HandController graphics model (for left or right accordingly).

Test your hand. See if the hand is oriented correctly and the wrist joint looks and rotates correctly
Common errors include:
Not making Arm a child of Hand
Using the wrong bone for the palm
Not setting finger pointing and palm face directions properly

Switch to Scene view and select the HandController in the Hierarchy. Compare your hand to the rigid bodies. They should line up with the palm and arm. Common mistakes include:
Wrong scale — set the scale of the model in inspector (probably have to start over after doing this)
Wrong offset — Adjust the Offset translation

1. Add The RiggedFinger script to one of the top level finger bones.
2. Set the Model finger pointing and palm facing values to the same used for RiggedHand
3. Copy this RiggedFinger component and paste it to the four other top level finger bones.
4. For each finger, drag the bone transforms to the corresponding position in the RiggedFinger bone array.
   Item3 should be the distal bone(not the tip)
   Item2 should be the intermediate phalanx
   Item1 should be the proximal phalanx
   Item0 should be the metacarpal, but isn’t articulated in the LM hand model, so it isn’t necessary if your rig doesn’t need them). The LM hands don’t use this slot.
5. Drag the bones with the RiggedFinger script components to the corresponding slots in the Fingers array of the RiggedHand script.
6. Test

[puddyman]

I've been trying to get custom hands working for a while now with no sucess. i've achieved this so far:

but i really need to put some custom hands in there. I tried following the above even just using the pepper hand model. i've tried replicating EXACTLY the heirarchy and script assignments from the prefab version and i can't for the life of me get either the pepper hands or my custom rigs working. is there any other help you could give me? a short and video of you setting up the pepper hands for leap from the FBX?

if you prefer i could create a short video of how i'm trying to do it and someone could point me in the right direction?

[puddyman]

I've recorded some videos of myself following 2 methods, the first is trying to follow the above instructions, could someone please take a look and see where i'm going wrong?
I'm starting with the desktop example scene that came with leap core orion assets 4.1.1 and i'm starting with the RiggedPepperFullHands fbx and trying to set it up so it works like the prefab works.

[puddyman]

My second method is below. I try to replicate everything in the RiggedPepperFullHands starting from the RiggedPepperFullHands.fbx I create the hierarchy the same as the example prefab, assign the scripts the same as the prefab, use the same model as the prefab, yet it still doesn't work. very confusing.

[Barrett-Fox]

Question: Since the hi-poly pepper hands are already setup as prefabs, can you not use these existing prefabs? The pepper hands are difficult to setup, particularly when breaking the fbx hierarchy in Unity. As a better example for a rigged hand pipeline, the LoPoly_Rigged_Hands have a cleaner hierarchy.

We're working on a tutorial for setting up rigged hands. Will share as soon as that's finished.

[Joe_Ward]

We just added some tools designed to make setting up rigged hands easier, See http://blog.leapmotion.com/hands-module-2-0-bring-your-hand-designs-to-life-in-two-minutes-or-less/

[puddyman]

Wow,
Thank you Joe. This will make many people happy.

[sharanb]

bro where did you get the pepper base full hand model..?
Can i know..because i cannot find any model that fits this demo..?
It will be great if you shared the link because it is not inside the format i downloaded thanks..

[heinrichchris]

It's from the Handsmodule 2.1.0 (latest doesn't have it for some reason)

[Pitch]

As of 21.01.2018 I can't find the Hansmodule 2.1.0 on their github and cant find any other hands exept the capsulehands and the lowpoly rigged ones. Can anyone help me or direct me into finding more humane model hands. There is this example demo from LEap where there are many cool hand assets but I can't fint those anywhere either.

I mean this demo
http://blog.leapmotion.com/all-rigged-hands-on-deck-explore-your-options-with-hand-viewer-for-unity/