diff --git a/src/extras/animation/MorphAnimation.js b/src/extras/animation/MorphAnimation.js
index 683d9b3ef02a1c10c6dc9d721738cfed0d634fad..6c18bdab7615a6281091afc19b710f76734d330e 100644
--- a/src/extras/animation/MorphAnimation.js
+++ b/src/extras/animation/MorphAnimation.js
@@ -47,8 +47,8 @@ THREE.MorphAnimation.prototype = {
 
 		this.currentTime = Math.min( this.currentTime, this.duration );
 
-		var interpolation = this.duration / this.frames;
-		var frame = Math.floor( this.currentTime / interpolation );
+		var frameTime = this.duration / this.frames;
+		var frame = Math.floor( this.currentTime / frameTime );
 
 		var influences = this.mesh.morphTargetInfluences;
 
@@ -63,8 +63,10 @@ THREE.MorphAnimation.prototype = {
 
 		}
 
-		influences[ frame ] = ( this.currentTime % interpolation ) / interpolation;
-		influences[ this.lastFrame ] = 1 - influences[ frame ];
+		var mix = ( this.currentTime % frameTime ) / frameTime;
+
+		influences[ frame ] = mix;
+		influences[ this.lastFrame ] = 1 - mix;
 
 	}
 
diff --git a/src/objects/MorphAnimMesh.js b/src/objects/MorphAnimMesh.js
index d263cf91b4a19860bcad94183afc6f9f43f5ab22..6cd1f54f3edff1f728a5b76010d5de6ccbe74368 100644
--- a/src/objects/MorphAnimMesh.js
+++ b/src/objects/MorphAnimMesh.js
@@ -22,7 +22,7 @@ THREE.MorphAnimMesh = function ( geometry, material ) {
 	this.direction = 1;
 	this.directionBackwards = false;
 
-	this.setFrameRange( 0, this.geometry.morphTargets.length - 1 );
+	this.setFrameRange( 0, geometry.morphTargets.length - 1 );
 
 };
 
@@ -152,12 +152,13 @@ THREE.MorphAnimMesh.prototype.updateAnimation = function ( delta ) {
 
 	var keyframe = this.startKeyframe + THREE.Math.clamp( Math.floor( this.time / frameTime ), 0, this.length - 1 );
 
-	if ( keyframe !== this.currentKeyframe ) {
+	var influences = this.morphTargetInfluences;
 
-		this.morphTargetInfluences[ this.lastKeyframe ] = 0;
-		this.morphTargetInfluences[ this.currentKeyframe ] = 1;
+	if ( keyframe !== this.currentKeyframe ) {
 
-		this.morphTargetInfluences[ keyframe ] = 0;
+		influences[ this.lastKeyframe ] = 0;
+		influences[ this.currentKeyframe ] = 1;
+		influences[ keyframe ] = 0;
 
 		this.lastKeyframe = this.currentKeyframe;
 		this.currentKeyframe = keyframe;
@@ -172,8 +173,8 @@ THREE.MorphAnimMesh.prototype.updateAnimation = function ( delta ) {
 
 	}
 
-	this.morphTargetInfluences[ this.currentKeyframe ] = mix;
-	this.morphTargetInfluences[ this.lastKeyframe ] = 1 - mix;
+	influences[ this.currentKeyframe ] = mix;
+	influences[ this.lastKeyframe ] = 1 - mix;
 
 };
 
diff --git a/src/renderers/webgl/WebGLShadowMap.js b/src/renderers/webgl/WebGLShadowMap.js
index 42acf20f8700fa3c7e2866fb0c1daa67f3f01695..781c6d118a2b3a2e90f8f6cf722a61941c5193cd 100644
--- a/src/renderers/webgl/WebGLShadowMap.js
+++ b/src/renderers/webgl/WebGLShadowMap.js
@@ -308,7 +308,6 @@ THREE.WebGLShadowMap = function ( _renderer, _lights, _objects ) {
 
 				}
 
-				_renderer.setMaterialFaces( objectMaterial );
 				_renderer.renderBufferDirect( shadowCamera, _lights, fog, material, object );
 
 			}