Grabing/Grasping Sensitivity

Tags: #<Tag:0x007f86c8c311e8>

thibz_LES 2018-02-23 14:23:23 UTC #1

Hi guys,

I'm using LeapMotion Interaction Engine in my app but i don't find the way to change the grabing sensitivity.
There is no value to change it in scripts (Interaction Behaviours..etc...).

Any ideas ?

Thanks !

Unity 5.6.4 - LeapMotion SDK + Interaction Engine

jselstad 2018-02-26 16:19:49 UTC #2

There aren’t any knobs for tuning the sensitivity, but we do have a PR in the pipeline which significantly increases the sensitivity of grabs for small objects (as well as adds 5.6 support back to our main development branch).

If you’re not afraid of experimental/unsupported code, you can find that branch here. Otherwise, this behavior should appear in our next release.

thibz_LES 2018-02-27 09:49:50 UTC #3

Thanks for reply !

I'll check that !

cedricfree 2019-05-17 14:29:24 UTC #4

Hello,

We are in May,17, 2019. I 'm working with the Leap Motion Core Version 4.4.0, and i am looking parameters not to increase, but to reduce the sensitivity of grasping gesture. On my opinion, it grasp too fast when the hand still too much opened.
Also, is there a way now in 2019 to do this ?

thanks a lot for your answer.

Cédric.

AlexColgan 2019-06-04 18:12:43 UTC #5

github.com

leapmotion/UnityModules/blob/master/Assets/LeapMotion/Modules/InteractionEngine/Scripts/Internal/HeuristicGrabClassifier.cs#L33


public InteractionHand interactionHand;


private Dictionary<IInteractionBehaviour, GrabClassifierHeuristics.GrabClassifier> _classifiers
  = new Dictionary<IInteractionBehaviour, GrabClassifierHeuristics.GrabClassifier>();
private GrabClassifierHeuristics.ClassifierParameters _defaultGrabParams, _scaledGrabParams;
private Collider[][] _collidingCandidates = new Collider[6][];
private int[] _numberOfColliders = new int[6];
private Vector3[] _fingerTipPositions = new Vector3[5];
private Vector3[] _fingerKnucklePositions = new Vector3[5];


public HeuristicGrabClassifier(InteractionHand intHand,
                               float fingerStickiness = 0F,
                               float thumbStickiness = 0.04F,
                               float maxCurl = 0.65F,
                               float minCurl = -0.1F,
                               float fingerRadius = 0.012F,
                               float thumbRadius = 0.017F,
                               float grabCooldown = 0.2F,
                               float maxCurlVel = 0.0F,
                               float grabbedMaxCurlVel = -0.025F,
                               float maxGrabDistance = 0.05F,