webvr js meetup initial commit

node_modules/three/examples/js/MorphAnimation.js

@@ -0,0 +1,73 @@
+/**
+ * @author mrdoob / http://mrdoob.com
+ * @author willy-vvu / http://willy-vvu.github.io
+ */
+
+THREE.MorphAnimation = function ( mesh ) {
+
+	this.mesh = mesh;
+	this.frames = mesh.morphTargetInfluences.length;
+	this.currentTime = 0;
+	this.duration = 1000;
+	this.loop = true;
+	this.lastFrame = 0;
+	this.currentFrame = 0;
+
+	this.isPlaying = false;
+
+};
+
+THREE.MorphAnimation.prototype = {
+
+	constructor: THREE.MorphAnimation,
+
+	play: function () {
+
+		this.isPlaying = true;
+
+	},
+
+	pause: function () {
+
+		this.isPlaying = false;
+
+	},
+
+	update: function ( delta ) {
+
+		if ( this.isPlaying === false ) return;
+
+		this.currentTime += delta;
+
+		if ( this.loop === true && this.currentTime > this.duration ) {
+
+			this.currentTime %= this.duration;
+
+		}
+
+		this.currentTime = Math.min( this.currentTime, this.duration );
+
+		var frameTime = this.duration / this.frames;
+		var frame = Math.floor( this.currentTime / frameTime );
+
+		var influences = this.mesh.morphTargetInfluences;
+
+		if ( frame !== this.currentFrame ) {
+
+			influences[ this.lastFrame ] = 0;
+			influences[ this.currentFrame ] = 1;
+			influences[ frame ] = 0;
+
+			this.lastFrame = this.currentFrame;
+			this.currentFrame = frame;
+
+		}
+
+		var mix = ( this.currentTime % frameTime ) / frameTime;
+
+		influences[ frame ] = mix;
+		influences[ this.lastFrame ] = 1 - mix;
+
+	}
+
+};