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Properly reverse and cross-fade animations in hand-controls component #5300

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Merged
merged 1 commit into from
Jun 14, 2023
Merged

Properly reverse and cross-fade animations in hand-controls component #5300

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31 changes: 16 additions & 15 deletions src/components/hand-controls.js
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Original file line number Diff line number Diff line change
Expand Up @@ -57,8 +57,6 @@ module.exports.Component = registerComponent('hand-controls', {
init: function () {
var self = this;
var el = this.el;
// Current pose.
this.gesture = ANIMATIONS.open;
// Active buttons populated by events provided by the attached controls.
this.pressedButtons = {};
this.touchedButtons = {};
Expand Down Expand Up @@ -360,34 +358,37 @@ module.exports.Component = registerComponent('hand-controls', {

if (!mesh) { return; }

// Stop all current animations.
mesh.mixer.stopAllAction();

// Grab clip action.
clip = this.getClip(gesture);
toAction = mesh.mixer.clipAction(clip);

// Reverse from gesture to no gesture.
if (reverse) {
toAction.paused = false;
toAction.timeScale = -1;
return;
}

toAction.clampWhenFinished = true;
toAction.loop = THREE.LoopRepeat;
toAction.loop = THREE.LoopOnce;
toAction.repetitions = 0;
toAction.timeScale = reverse ? -1 : 1;
toAction.time = reverse ? clip.duration : 0;
toAction.timeScale = 1;
toAction.time = 0;
toAction.weight = 1;

// No gesture to gesture or gesture to no gesture.
if (!lastGesture || gesture === lastGesture) {
// Stop all current animations.
mesh.mixer.stopAllAction();
// No gesture to gesture.
if (!lastGesture) {
// Play animation.
mesh.mixer.stopAllAction();
toAction.play();
return;
}

// Animate or crossfade from gesture to gesture.
clip = this.getClip(lastGesture);
fromAction = mesh.mixer.clipAction(clip);
fromAction.weight = 0.15;
fromAction.play();
toAction.reset();
toAction.play();
fromAction = mesh.mixer.clipAction(clip);
fromAction.crossFadeTo(toAction, 0.15, true);
}
});
Expand Down