diff --git a/animationChannel.cpp b/animationChannel.cpp
index 17bb85c..4bd8968 100644
--- a/animationChannel.cpp
+++ b/animationChannel.cpp
@@ -4,8 +4,7 @@
 using namespace std;
 
 namespace vb01{
-	AnimationChannel::AnimationChannel(AnimationController *controller){
-		this->controller = controller;
+	AnimationChannel::AnimationChannel(){
 	}
 
 	AnimationChannel::~AnimationChannel(){
diff --git a/animationChannel.h b/animationChannel.h
index a7aa5e3..a980467 100644
--- a/animationChannel.h
+++ b/animationChannel.h
@@ -13,7 +13,7 @@ namespace vb01{
 
 	class AnimationChannel{
 		public:
-			AnimationChannel(AnimationController*);
+			AnimationChannel();
 			~AnimationChannel();
 			void update();
 			void setAnimationName(std::string name);
@@ -31,6 +31,7 @@ namespace vb01{
 			inline void setForward(bool forward){this->forward = forward;}
 			inline bool isForward(){return forward;}
 			inline std::string getAnimationName(){return animationName;}
+			inline void setAnimationController(AnimationController *controller){this->controller = controller;}
 		private:
 			inline bool canUpdate(){return getTime() - lastUpdateTime > updateRate;}
 			int getMaxKeyframeNum(std::string);
diff --git a/animationChannelTest.cpp b/animationChannelTest.cpp
index 228761b..60f33e6 100644
--- a/animationChannelTest.cpp
+++ b/animationChannelTest.cpp
@@ -26,7 +26,7 @@ namespace vb01{
 		Animation *anim = new Animation("anim");
 		anim->addKeyframeChannel(kc);
 
-		channel = new AnimationChannel(controller);
+		channel = new AnimationChannel();
 		controller->addAnimationChannel(channel);
 		controller->addAnimation(anim);
 		channel->addAnimatable(bone);
diff --git a/animationController.cpp b/animationController.cpp
index 3160539..e0dd0b1 100644
--- a/animationController.cpp
+++ b/animationController.cpp
@@ -40,4 +40,9 @@ namespace vb01{
 			}
 		return anim;
 	}
+
+	void AnimationController::addAnimationChannel(AnimationChannel *channel){
+		channels.push_back(channel);
+		channel->setAnimationController(this);
+	}
 }
diff --git a/animationController.h b/animationController.h
index b57c032..f93bed8 100644
--- a/animationController.h
+++ b/animationController.h
@@ -19,9 +19,9 @@ namespace vb01{
 			~AnimationController(){}
 			void update();
 			Animation* getAnimation(std::string);
+			void addAnimationChannel(AnimationChannel *channel);
 			inline std::vector<Animation*> getAnimations(){return animations;}
 			inline void addAnimation(Animation *anim){animations.push_back(anim);}
-			inline void addAnimationChannel(AnimationChannel *channel){channels.push_back(channel);}
 		private:
 			std::vector<Animation*> animations;
 			std::vector<AnimationChannel*> channels;
diff --git a/keyframeChannel.cpp b/keyframeChannel.cpp
index 049f6a6..dbfc242 100644
--- a/keyframeChannel.cpp
+++ b/keyframeChannel.cpp
@@ -80,11 +80,19 @@ namespace vb01{
 		return keyframeChannel.keyframes[pastKeyframeId + (last ? 0 : 1)];
 	}
 
-	Keyframe KeyframeChannel::createKeyframe(KeyframeInterpolation interpolation, float frame, float value){
+	Keyframe KeyframeChannel::createKeyframe(KeyframeInterpolation interpolation, float value, float frame) {
 		Keyframe keyframe;
 		keyframe.interpolation = interpolation;
 		keyframe.frame = frame;
 		keyframe.value = value;
 		return keyframe;
 	}
+
+	KeyframeChannel KeyframeChannel::createKeyframeChannel(KeyframeChannelType type, Animatable *animatable, vector<Keyframe> keyframes){
+		KeyframeChannel keyframeChannel;
+		keyframeChannel.type = type;
+		keyframeChannel.animatable = animatable;
+		keyframeChannel.keyframes = keyframes;
+		return keyframeChannel;
+	}
 }
diff --git a/keyframeChannel.h b/keyframeChannel.h
index eaa6aab..4c6e098 100644
--- a/keyframeChannel.h
+++ b/keyframeChannel.h
@@ -68,6 +68,7 @@ namespace vb01{
 		static float interpolate(Keyframe, Keyframe, float); 
 		static Keyframe findKeyframe(float, KeyframeChannel, bool);
 		static Keyframe createKeyframe(Keyframe::Interpolation, float, float);
+		static KeyframeChannel createKeyframeChannel(KeyframeChannel::Type, Animatable*, std::vector<Keyframe>);
 	};
 
 	typedef KeyframeChannel::Type KeyframeChannelType; 
diff --git a/lightSample.cpp b/lightSample.cpp
index ffa047a..7d70df3 100644
--- a/lightSample.cpp
+++ b/lightSample.cpp
@@ -3,6 +3,9 @@
 #include "material.h"
 #include "node.h"
 #include "light.h"
+#include "animation.h"
+#include "animationController.h"
+#include "animationChannel.h"
 
 using namespace std;
 using namespace vb01;
@@ -43,11 +46,40 @@ int main(){
 
 	Light *light = new Light(Light::SPOT);
 	light->setColor(Vector3(1, 1, 1));
-	Node *lightNode = new Node();
+	Node *lightNode = new Node(Vector3::VEC_ZERO, Quaternion::QUAT_W, Vector3::VEC_IJK, "", new AnimationController());
 	lightNode->addLight(light);
 	rootNode->attachChild(lightNode);
 	lightNode->setOrientation(Quaternion(1.57, Vector3(1, 0, 0)));
-	lightNode->setPosition(Vector3(0, 2, 0));
+	lightNode->setPosition(Vector3(0, 5, 0));
+
+	KeyframeChannel kcA;
+	kcA.animatable = light;
+	kcA.type = KeyframeChannel::SPOTLIGHT_OUTER_ANGLE;
+	kcA.keyframes = vector<Keyframe>({
+			KeyframeChannel::createKeyframe(Keyframe::LINEAR, .1, 1),
+			KeyframeChannel::createKeyframe(Keyframe::LINEAR, .7, 60),
+			KeyframeChannel::createKeyframe(Keyframe::LINEAR, .9, 120)
+	});
+
+	KeyframeChannel kcB;
+	kcA.animatable = light;
+	kcA.type = KeyframeChannel::SPOTLIGHT_INNER_ANGLE;
+	kcA.keyframes = vector<Keyframe>({
+			KeyframeChannel::createKeyframe(Keyframe::LINEAR, .1, 1),
+			KeyframeChannel::createKeyframe(Keyframe::LINEAR, .7, 60)
+	});
+
+	Animation *animation = new Animation("spotlightAnim");
+	animation->addKeyframeChannel(kcA);
+	animation->addKeyframeChannel(kcB);
+
+	AnimationController *controller = lightNode->getAnimationController();
+	controller->addAnimation(animation);
+	AnimationChannel *channel = new AnimationChannel();
+	controller->addAnimationChannel(channel);
+	channel->addAnimatable(light);
+	channel->setLoop(true);
+	channel->setAnimationName("spotlightAnim");
 
 	while(true)
 		root->update();
diff --git a/morphAnimationSample.cpp b/morphAnimationSample.cpp
index cec6456..0180b00 100644
--- a/morphAnimationSample.cpp
+++ b/morphAnimationSample.cpp
@@ -46,11 +46,11 @@ int main(){
 	Skeleton *skeleton = mesh->getSkeleton();
 
 	AnimationController *controller = skeleton->getAnimationController();
-	AnimationChannel *channel = new AnimationChannel(controller);
+	AnimationChannel *channel = new AnimationChannel();
+	controller->addAnimationChannel(channel);
 	channel->addAnimatable(skeleton->getBone("bone"));
 	channel->setAnimationName("morph");
 	channel->setLoop(true);
-	controller->addAnimationChannel(channel);
 
 	Box *box = new Box(Vector3(1, 1, 1) * .25);
 	Material *boxMat = new Material();
diff --git a/skeletalAnimationSample.cpp b/skeletalAnimationSample.cpp
index 5a74a11..7213e4c 100644
--- a/skeletalAnimationSample.cpp
+++ b/skeletalAnimationSample.cpp
@@ -45,12 +45,12 @@ int main(){
 	Skeleton *skeleton = mesh->getSkeleton();
 
 	AnimationController *controller = skeleton->getAnimationController();
-	AnimationChannel *channel = new AnimationChannel(controller);
+	AnimationChannel *channel = new AnimationChannel();
+	controller->addAnimationChannel(channel);
 	channel->addAnimatable(skeleton->getBone("handIK.R"));
 	channel->addAnimatable(skeleton->getBone("elbowIK.R"));
 	channel->setAnimationName("righArmAnim");
 	channel->setLoop(true);
-	controller->addAnimationChannel(channel);
 
 	skeleton->getBone("handIK.L")->setPosePos(Vector3(1.5, -1.5, 0));
 
diff --git a/textSample.cpp b/textSample.cpp
index f15524c..aad5041 100644
--- a/textSample.cpp
+++ b/textSample.cpp
@@ -95,11 +95,11 @@ int main(){
 
 		AnimationController *controller = textNode->getAnimationController();
 		controller->addAnimation(anim);
-		AnimationChannel *channel = new AnimationChannel(controller);
+		AnimationChannel *channel = new AnimationChannel();
+		controller->addAnimationChannel(channel);
 		channel->addAnimatable(texture);
 		channel->setAnimationName("tex");
 		channel->setLoop(true);
-		controller->addAnimationChannel(channel);
 	}
 
 	while(true){