diff --git a/PhysicalInstance.cpp b/PhysicalInstance.cpp
index 5c7632c..96a8bd4 100644
--- a/PhysicalInstance.cpp
+++ b/PhysicalInstance.cpp
@@ -8,6 +8,8 @@ Vector3 velocity;
 Vector3 rotVelocity;
 CoordinateFrame cFrame;
 Color3 color;
+bool changed = true;
+Box itemBox = Box();
 
 PhysicalInstance::PhysicalInstance(void)
 {
@@ -31,6 +33,7 @@ void PhysicalInstance::setPosition(Vector3 pos)
 {
 	position = pos;
 	cFrame = CoordinateFrame(pos);
+	changed = true;
 }
 CoordinateFrame PhysicalInstance::getCFrame()
 {
@@ -40,6 +43,7 @@ void PhysicalInstance::setCFrame(CoordinateFrame coordinateFrame)
 {
 	cFrame = coordinateFrame;
 	position = coordinateFrame.translation;
+	changed = true;
 }
 
 CoordinateFrame PhysicalInstance::getCFrameRenderBased()
@@ -49,9 +53,13 @@ CoordinateFrame PhysicalInstance::getCFrameRenderBased()
 
 Box PhysicalInstance::getBox()
 {
-	Box box = Box(Vector3(0+size.x/4, 0+size.y/4, 0+size.z/4) ,Vector3(0-size.x/4,0-size.y/4,0-size.z/4));
-	CoordinateFrame c = getCFrameRenderBased();
-	return c.toWorldSpace(box);
+	if(changed)
+	{
+		Box box = Box(Vector3(0+size.x/4, 0+size.y/4, 0+size.z/4) ,Vector3(0-size.x/4,0-size.y/4,0-size.z/4));
+		CoordinateFrame c = getCFrameRenderBased();
+		itemBox = c.toWorldSpace(box);
+	}
+	return itemBox;
 }
 
 PhysicalInstance::~PhysicalInstance(void)
diff --git a/main.cpp b/main.cpp
index 348ae81..253b18f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -283,15 +283,9 @@ void GUDButtonListener::onButton1MouseClick(BaseButtonInstance* button)
 		
 }
 
-class DeleteListener : public ButtonListener {
-public:
-	void onButton1MouseClick(BaseButtonInstance*);
-};
 
-void DeleteListener::onButton1MouseClick(BaseButtonInstance* button)
+void deleteInstance()
 {
-	
-	
 	if(selectedInstance != NULL)
 	{
 		for(size_t i = 0; i < instances.size(); i++)
@@ -303,19 +297,31 @@ void DeleteListener::onButton1MouseClick(BaseButtonInstance* button)
 				delete deleting;
 				selectedInstance = NULL;
 				AudioPlayer::PlaySound(GetFileInPath("/content/sounds/pageturn.wav"));
-				
-				
 			}
-		
 		}
 	}
 }
 
+
+class DeleteListener : public ButtonListener {
+public:
+	void onButton1MouseClick(BaseButtonInstance*);
+};
+
+void DeleteListener::onButton1MouseClick(BaseButtonInstance* button)
+{
+	deleteInstance();
+}
+
+
+
+
 class ModeSelectionListener : public ButtonListener {
 public:
 	void onButton1MouseClick(BaseButtonInstance*);
 };
 
+
 void ModeSelectionListener::onButton1MouseClick(BaseButtonInstance* button)
 {
 	CoordinateFrame frame = usableApp->debugCamera.getCoordinateFrame();
@@ -953,6 +959,11 @@ void Demo::onUserInput(UserInput* ui) {
 		cameraPos = cameraPos - frame.lookVector()*2;
 	}
 
+	if(ui->keyPressed(SDLK_DELETE))
+	{
+		deleteInstance();
+	}
+
 	if(ui->keyDown(SDLK_LCTRL))
 	{
 		if(ui->keyPressed('d'))
@@ -1207,7 +1218,6 @@ void makeBeveledBox(Box box, RenderDevice* rd, Color4 color, CoordinateFrame cFr
 
 
 void Demo::onGraphics(RenderDevice* rd) {
-
 	Vector2 mousepos = Vector2(0,0);
 	G3D::uint8 num = 0;
 	rd->window()->getRelativeMouseState(mousepos, num);
@@ -1264,6 +1274,7 @@ void Demo::onGraphics(RenderDevice* rd) {
 			Instance* instance = instances.at(i);
 			if(instance->className == "Part" && instance->parent != NULL)
 			{
+				
 				PhysicalInstance* part = (PhysicalInstance*)instance;
 				Draw::box(part->getBox(), app->renderDevice, part->color, Color4::clear());
 				if(selectedInstance == part)