Hand tracking animation issue

Hi Jimena,

Thank you for including the project. This is really helpful!

First of all, let's change the default alpha value for the image in Hand Tracking Controller to 0.0. Thus it will be set to 0.0 before the first HandFound event.

Next, we need to set alpha back to 0.0 on every HandFound and HandLost event, since tween will keep running even when there is no hand in the frame. Here is edited version of TweenController script.

// -----JS CODE-----

// @input SceneObject HandAnimation


var image = script.HandAnimation.getFirstComponent("Component.Image");


script.api.onObjectFound = function() {

   image.mainMaterial.mainPass.baseColor = setAlpha(image.mainMaterial.mainPass.baseColor, 0.0);

   global.tweenManager.startTween( script.HandAnimation, "transitionfade" );

   print( "Hand Found" );

}


script.api.onObjectLost = function() {

   image.mainMaterial.mainPass.baseColor = setAlpha(image.mainMaterial.mainPass.baseColor, 0.0);

   print( "Hand Lost" );

}



function setAlpha( color, alpha ) {

   return new vec4( color.r, color.g, color.b, alpha );

}

Let me know if you have any question!

Best,
Olesia