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NextWorldVR
Up and Coming
January 20, 2019

My 'physics simulation' Fingers Move BY THEMSELVES!

I have been using the Physics Simulation mode of Unreals VR Editor to pose, just by pushing and pulling on the mannequin.   It all works great until I try to get the fingers in on the action!   I cannot see what I am forgetting?!   1) I give them physics constraint capsules, 2) I turn off gravity   3) I turn the linear and angular damping up to 5000.

  It works great with everything except the fingers,  Am I missing collision boxes on the standard Mannequin fingers?  I thought Constraints would be enough,.

Any help or even unrelated suggestions about Unreal and posing Fingers in general would be most welcome!   Thank you.

.here are images of the settings etc and a short video to show what is happening, (the mannequin with enabled fingers moves by itself PULLED by the fingers!   
https://www.youtube.com/watch?v=DWZGGLjzsAg

My good arm settings, my similar but Insane and Haunted Finger setting below  ??  (I may no have the same setting on all fingers I am trying everything and going a little crazy,..   I think I need a kind soul to give  a 'checklist'of sorts for how to accomplish physics constrained Simulated fingers,. (etc..)  without unexpected forces / impulses coming into play..  I am at a loss as to where it is coming from..

THANK YOU!   :~)






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    NextWorldVRAuthor
    Up and Coming
    January 25, 2019
    Never mind! I figured it out, I had to make nice tight 'single convex hulls' for the fingers so the constraints would be based on those and not interfere with each other! (in the Physics Asset edit window, select finger bones, in the 'Tools' panel, 'Body Creation' Drop down choose 'Single convex Hull' and click 'Add Bodies', it will create collision and constraints then in the Details panel, you just select limited (or locked) for Angular Limit, locking the Twist and appropriate angle for fingers and thumb! and increase the Linear and Angular Damping to a high number like 5000. I like to turn 'Parent Dominates' on (checked after selecting a constraint) so the finger can be moved without changing your arm or hand pose! 
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