A mesh that can blend together multiple animated morph targets.
		
		[example:webgl_morphtargets_md2_control morphtargets / md2 / controll]
		
Constructor
		[name]([page:Geometry geometry], [page:Material material])
		
		geometry — An instance of [page:Geometry].
		material — An instance of [page:Material] (optional).
		
		Properties
		[property:object animationsMap]
		
		An object of named animations as added by [page:MorphBlendMesh.createAnimation].
		
		[property:array animationsList]
		
		The list of animations as added by [page:MorphBlendMesh.createAnimation].
		
		Methods
		[method:null setAnimationWeight]([page:String name], [page:Float weight])
		
		name -- The name of the animation
		weight -- Weight of the animation, typically 0-1
		
		
		Set the weight of how much this animation will apply to the overall morph. 0 is off, 1 is full weight.
		
		[method:null setAnimationFPS]([page:String name], [page:Float fps])
		
		name -- The name of the animation 
		fps -- The number of frames (morphTargets) per second
		
		
		A frame is typically 1 morph target.
		
		[method:null createAnimation]([page:String name], [page:Integer start], [page:Integer end], [page:Float fps])
		
		name -- The name of the animation 
		start -- The starting frame (morph)
		end -- The ending frame (morph)
		fps -- How many frames (morphs) to play per second
		
		
		Creates an animation object that gets added to both the [page:MorphBlendMesh.animationsMap animationsMap] and
		[page:MorphBlendMesh.animationsList animationsList].
		Animation object:
		startFrame -- Starting frame
		endFrame -- Ending frame
		length -- The number of frames
		fps -- The frames per second
		duration -- The length of the animation in seconds
		lastFrame -- The previous frame that was played
		currentFrame -- The current frame
		active -- Whether or not the animation is being played
		time -- The time in seconds of the animation
		direction -- Which way to play the animation
		weight -- The weight of the animation
		directionBackwards -- Is playing backwards
		mirroredLoop -- Loop back and forth
		
		[method:null playAnimation]([page:String name])
		
		name -- The name of the animation
		
		
		Sets the animation to active and animation time to 0
		
		[method:null update]([page:Float delta])
		
		delta -- Time in seconds
		
		
		Updates and plays the animation
		
		[method:null autoCreateAnimations]([page:Float fps])
		
		fps -- Frames per second
		
		
		Goes through the geometry's morphTargets and generates animations based on the morphTargets' names. Names
		are of the form "walk_01", "walk_02", "walk_03", etc or "run001", "run002", "run003".
		
		[method:null setAnimationDuration]([page:String name], [page:Float duration])
		
		name -- The name of the animation 
		duration -- How long in seconds to play the animation
		
		
		Updates the animation object with proper values to update the duration.
		
		[method:null setAnimationDirectionForward]([page:String name])
		
		name -- The name of the animation
		
		
		Sets the animation to play forwards
		
		[method:null setAnimationDirectionBackward]([page:String name])
		
		name -- The name of the animation
		
		
		Sets the animation to play backwards
		
		[method:Float getAnimationDuration]([page:String name])
		
		name -- The name of the animation
		
		
		Returns the duration in seconds of the animation. Returns -1 if it can't be found.
		
		[method:Float getAnimationTime]([page:String name])
		
		name -- The name of the animation
		
		
		Returns the current time position of the animation.
		
		[method:null setAnimationTime]([page:String name], [page:Float time])
		
		name -- The name of the animation 
		time -- The time in seconds
		
		
		Sets the current time position of the animation
		
		[method:null stopAnimation]([page:String name])
		
		name -- The name of the animation
		
		
		Stops the playback of the animation
		
		Source
		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]