diff --git a/examples/Benchmarks/BenchmarkDemo.h b/examples/Benchmarks/BenchmarkDemo.h
index 3cc9310c4..191b5b4f8 100644
--- a/examples/Benchmarks/BenchmarkDemo.h
+++ b/examples/Benchmarks/BenchmarkDemo.h
@@ -15,7 +15,7 @@ subject to the following restrictions:
 #ifndef BENCHMARK_EXAMPLE_H
 #define BENCHMARK_EXAMPLE_H
 
-struct ExampleInterface*    BenchmarkCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    BenchmarkCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 
 
diff --git a/examples/CommonInterfaces/CommonCameraInterface.h b/examples/CommonInterfaces/CommonCameraInterface.h
new file mode 100644
index 000000000..9ad70527a
--- /dev/null
+++ b/examples/CommonInterfaces/CommonCameraInterface.h
@@ -0,0 +1,33 @@
+#ifndef COMMON_CAMERA_INTERFACE_H
+#define COMMON_CAMERA_INTERFACE_H
+
+struct CommonCameraInterface
+{
+	virtual void getCameraProjectionMatrix(float m[16])const = 0;
+	virtual void getCameraViewMatrix(float m[16]) const = 0;
+		
+	virtual void getCameraTargetPosition(float pos[3]) const = 0;
+	virtual void getCameraPosition(float pos[3]) const = 0;
+
+	virtual void	setCameraTargetPosition(float x,float y,float z) = 0;
+	virtual void	setCameraDistance(float dist) = 0;
+	virtual float	getCameraDistance() const = 0;
+
+	virtual void	setCameraUpVector(float x,float y, float z) = 0;
+	virtual	void	getCameraUpVector(float up[3]) const = 0;
+	///the setCameraUpAxis will call the 'setCameraUpVector' and 'setCameraForwardVector'
+	virtual void	setCameraUpAxis(int axis) = 0;
+	virtual int		getCameraUpAxis() const = 0;
+
+	virtual void	setCameraYaw(float yaw) = 0;
+	virtual float	getCameraYaw() const = 0;
+	
+	virtual void	setCameraPitch(float pitch) = 0;
+	virtual float	getCameraPitch() const = 0;
+
+	virtual void	setAspectRatio(float ratio) = 0;
+	virtual float	getAspectRatio() const = 0;
+};
+
+#endif //COMMON_CAMERA_INTERFACE_H
+
diff --git a/examples/CommonInterfaces/CommonGraphicsAppInterface.h b/examples/CommonInterfaces/CommonGraphicsAppInterface.h
index 4a722c31d..4851bbc36 100644
--- a/examples/CommonInterfaces/CommonGraphicsAppInterface.h
+++ b/examples/CommonInterfaces/CommonGraphicsAppInterface.h
@@ -1,6 +1,13 @@
 #ifndef COMMON_GRAPHICS_APP_H
 #define COMMON_GRAPHICS_APP_H
 
+
+
+#include "Bullet3Common/b3Vector3.h"
+#include "CommonRenderInterface.h"
+#include "CommonWindowInterface.h"
+#include "CommonCameraInterface.h"
+
 struct DrawGridData
 {
     int gridSize;
@@ -22,21 +29,38 @@ struct DrawGridData
 
 struct CommonGraphicsApp
 {
+	class b3gWindowInterface*	m_window;
+	struct CommonRenderInterface*	m_renderer;
+	struct CommonParameterInterface*	m_parameterInterface;
+	struct Common2dCanvasInterface*	m_2dCanvasInterface;
+
+	bool	m_leftMouseButton;
+	bool	m_middleMouseButton;
+	bool	m_rightMouseButton;
+	float m_wheelMultiplier;
+	float m_mouseMoveMultiplier;
+	float	m_mouseXpos;
+	float	m_mouseYpos;
+	bool	m_mouseInitialized;
+
 	CommonGraphicsApp()
 		:m_window(0),
 		m_renderer(0),
 		m_parameterInterface(0),
-		m_2dCanvasInterface(0)
+		m_2dCanvasInterface(0),
+		m_leftMouseButton(false),
+		m_middleMouseButton(false),
+		m_rightMouseButton(false),
+		m_wheelMultiplier(0.01f),
+		m_mouseMoveMultiplier(0.4f),
+		m_mouseXpos(0.f),
+		m_mouseYpos(0.f),
+		m_mouseInitialized(false)
 	{
 	}
 	virtual ~CommonGraphicsApp()
 	{
 	}
-	
-	class b3gWindowInterface*	m_window;
-	struct CommonRenderInterface*	m_renderer;
-	struct CommonParameterInterface*	m_parameterInterface;
-	struct Common2dCanvasInterface*	m_2dCanvasInterface;
 
 	virtual void drawGrid(DrawGridData data=DrawGridData()) = 0;
 	virtual void setUpAxis(int axis) = 0;
@@ -48,6 +72,155 @@ struct CommonGraphicsApp
 	virtual int	registerCubeShape(float halfExtentsX,float halfExtentsY, float halfExtentsZ)=0;
 	virtual int	registerGraphicsSphereShape(float radius, bool usePointSprites=true, int largeSphereThreshold=100, int mediumSphereThreshold=10)=0;
 	virtual void registerGrid(int xres, int yres, float color0[4], float color1[4])=0;
+
+	void defaultMouseButtonCallback( int button, int state, float x, float y)
+	{
+		if (button==0)
+			m_leftMouseButton=state;
+		if (button==1)
+			m_middleMouseButton=state;
+
+		if (button==2)
+			m_rightMouseButton=state;
+
+		m_mouseXpos = x;
+		m_mouseYpos = y;
+		m_mouseInitialized = true;
+	}
+	void defaultMouseMoveCallback(  float x, float y)
+	{
+		
+		if (m_window && m_renderer)
+		{
+			CommonCameraInterface* camera = m_renderer->getActiveCamera();
+
+			bool isAltPressed = m_window->isModifiedKeyPressed(B3G_ALT);
+			bool isControlPressed = m_window->isModifiedKeyPressed(B3G_CONTROL);
+			
+			
+			if (isAltPressed || isControlPressed)
+			{
+				float xDelta = x-m_mouseXpos;
+				float yDelta = y-m_mouseYpos;
+				float cameraDistance = camera->getCameraDistance();
+				float pitch = camera->getCameraPitch();
+				float yaw = camera->getCameraYaw();
+
+				float targPos[3];
+				float	camPos[3];
+
+				camera->getCameraTargetPosition(targPos);
+				camera->getCameraPosition(camPos);
+			
+				b3Vector3 cameraPosition = b3MakeVector3(b3Scalar(camPos[0]),
+														b3Scalar(camPos[1]),
+														b3Scalar(camPos[2]));
+
+				b3Vector3 cameraTargetPosition = b3MakeVector3(	b3Scalar(targPos[0]),
+																b3Scalar(targPos[1]),
+																b3Scalar(targPos[2]));
+				b3Vector3 cameraUp = b3MakeVector3(0,0,0);
+				cameraUp[camera->getCameraUpAxis()] = 1.f;
+							
+				if (m_leftMouseButton)
+				{
+		//			if (b3Fabs(xDelta)>b3Fabs(yDelta))
+		//			{
+						pitch -= xDelta*m_mouseMoveMultiplier;
+		//			} else
+		//			{
+						yaw += yDelta*m_mouseMoveMultiplier;
+		//			}
+				}
+
+				if (m_middleMouseButton)
+				{
+					cameraTargetPosition += cameraUp * yDelta*0.01;
+
+
+					b3Vector3 fwd = cameraTargetPosition-cameraPosition;
+					b3Vector3 side = cameraUp.cross(fwd);
+					side.normalize();
+					cameraTargetPosition += side * xDelta*0.01;
+
+				}
+				if (m_rightMouseButton)
+				{
+						cameraDistance -= xDelta*0.01f;
+						cameraDistance -= yDelta*0.01f;
+						if (cameraDistance<1)
+							cameraDistance=1;
+						if (cameraDistance>1000)
+							cameraDistance=1000;
+				}
+				camera->setCameraDistance(cameraDistance);
+				camera->setCameraPitch(pitch);
+				camera->setCameraYaw(yaw);
+				camera->setCameraTargetPosition(cameraTargetPosition[0],cameraTargetPosition[1],cameraTargetPosition[2]);
+				
+			}	
+
+		}//m_window &&  m_renderer
+		
+		m_mouseXpos = x;
+		m_mouseYpos = y;
+		m_mouseInitialized = true;
+	}
+//	void defaultKeyboardCallback(int key, int state)
+//	{
+//	}
+	void defaultWheelCallback( float deltax, float deltay)
+	{
+
+		if (m_renderer)
+		{
+			b3Vector3 cameraTargetPosition, cameraPosition, cameraUp = b3MakeVector3(0,0,0);
+			cameraUp[getUpAxis()] = 1;
+			CommonCameraInterface* camera = m_renderer->getActiveCamera();
+			
+			camera->getCameraPosition(cameraPosition);
+			camera->getCameraTargetPosition(cameraTargetPosition);
+			
+			if (!m_leftMouseButton)
+			{
+
+				float cameraDistance = 	camera->getCameraDistance();
+				if (deltay<0 || cameraDistance>1)
+				{
+					cameraDistance -= deltay*0.1f;
+					if (cameraDistance<1)
+						cameraDistance=1;
+					camera->setCameraDistance(cameraDistance);
+
+				} else
+				{
+					
+					b3Vector3 fwd = cameraTargetPosition-cameraPosition;
+					fwd.normalize();
+					cameraTargetPosition += fwd*deltay*m_wheelMultiplier;//todo: expose it in the GUI?
+				}
+			} else
+			{
+				if (b3Fabs(deltax)>b3Fabs(deltay))
+				{
+					b3Vector3 fwd = cameraTargetPosition-cameraPosition;
+					b3Vector3 side = cameraUp.cross(fwd);
+					side.normalize();
+					cameraTargetPosition += side * deltax*m_wheelMultiplier;
+
+				} else
+				{
+					cameraTargetPosition -= cameraUp * deltay*m_wheelMultiplier;
+
+				}
+			}
+
+			camera->setCameraTargetPosition(cameraTargetPosition[0],cameraTargetPosition[1],cameraTargetPosition[2]);
+		}
+
+	}
+
+
 };
 
 
diff --git a/examples/CommonInterfaces/CommonMultiBodyBase.h b/examples/CommonInterfaces/CommonMultiBodyBase.h
index 65d31b9f2..215f36f79 100644
--- a/examples/CommonInterfaces/CommonMultiBodyBase.h
+++ b/examples/CommonInterfaces/CommonMultiBodyBase.h
@@ -16,6 +16,7 @@
 #include "CommonRenderInterface.h"
 #include "CommonGraphicsAppInterface.h"
 #include "CommonWindowInterface.h"
+#include "CommonCameraInterface.h"
 
 struct CommonMultiBodyBase : public ExampleInterface
 {
@@ -181,8 +182,8 @@ struct CommonMultiBodyBase : public ExampleInterface
 		float fov = btScalar(2.0) * btAtan(tanFov);
 
 		btVector3 camPos,camTarget;
-		renderer->getCameraPosition(camPos);
-		renderer->getCameraTargetPosition(camTarget);
+		renderer->getActiveCamera()->getCameraPosition(camPos);
+		renderer->getActiveCamera()->getCameraTargetPosition(camTarget);
 
 		btVector3	rayFrom = camPos;
 		btVector3 rayForward = (camTarget-camPos);
@@ -240,7 +241,7 @@ struct CommonMultiBodyBase : public ExampleInterface
 
 		btVector3 rayTo = getRayTo(int(x), int(y));
 		btVector3 rayFrom;
-		renderer->getCameraPosition(rayFrom);
+		renderer->getActiveCamera()->getCameraPosition(rayFrom);
 		movePickedBody(rayFrom,rayTo);
 
 		return false;
@@ -264,7 +265,7 @@ struct CommonMultiBodyBase : public ExampleInterface
 			if(button==0 && (!window->isModifiedKeyPressed(B3G_ALT) && !window->isModifiedKeyPressed(B3G_CONTROL) ))
 			{
 				btVector3 camPos;
-				renderer->getCameraPosition(camPos);
+				renderer->getActiveCamera()->getCameraPosition(camPos);
 
 				btVector3 rayFrom = camPos;
 				btVector3 rayTo = getRayTo(int(x),int(y));
diff --git a/examples/CommonInterfaces/CommonRenderInterface.h b/examples/CommonInterfaces/CommonRenderInterface.h
index a6aa7181c..db4d3fef6 100644
--- a/examples/CommonInterfaces/CommonRenderInterface.h
+++ b/examples/CommonInterfaces/CommonRenderInterface.h
@@ -1,6 +1,8 @@
 #ifndef COMMON_RENDER_INTERFACE_H
 #define COMMON_RENDER_INTERFACE_H
 
+struct CommonCameraInterface;
+
 enum
 {
 	B3_GL_TRIANGLES = 1,
@@ -20,21 +22,11 @@ struct CommonRenderInterface
 	virtual void init()=0;
 	virtual void updateCamera(int upAxis)=0;
 	virtual void removeAllInstances() = 0;
-	virtual void setCameraDistance(float dist) = 0;
-	virtual void setCameraPitch(float pitch) = 0;
-	virtual void setCameraTargetPosition(float x, float y, float z)=0;
+
+	virtual const CommonCameraInterface* getActiveCamera() const =0;
+	virtual CommonCameraInterface* getActiveCamera()=0;
+	virtual void setActiveCamera(CommonCameraInterface* cam)=0;
 	
-	
-	virtual void	getCameraPosition(float cameraPos[4])=0;
-	virtual void	getCameraPosition(double cameraPos[4])=0;
-
-	virtual void	setCameraTargetPosition(float cameraPos[4])=0;
-	virtual void	getCameraTargetPosition(float cameraPos[4]) const=0;
-    virtual void	getCameraTargetPosition(double cameraPos[4]) const=0;
-
-	virtual void	getCameraViewMatrix(float viewMat[16]) const=0;
-	virtual void	getCameraProjectionMatrix(float projMat[16]) const=0;
-
 	virtual void renderScene()=0;
 
 	virtual int getScreenWidth() = 0;
diff --git a/examples/CommonInterfaces/CommonRigidBodyBase.h b/examples/CommonInterfaces/CommonRigidBodyBase.h
index 93d050a5b..38231906c 100644
--- a/examples/CommonInterfaces/CommonRigidBodyBase.h
+++ b/examples/CommonInterfaces/CommonRigidBodyBase.h
@@ -7,6 +7,8 @@
 #include "ExampleInterface.h"
 #include "CommonGUIHelperInterface.h"
 #include "CommonRenderInterface.h"
+#include "CommonCameraInterface.h"
+
 #include "CommonGraphicsAppInterface.h"
 #include "CommonWindowInterface.h"
 
@@ -169,8 +171,9 @@ struct CommonRigidBodyBase : public ExampleInterface
 		float fov = btScalar(2.0) * btAtan(tanFov);
 
 		btVector3 camPos,camTarget;
-		renderer->getCameraPosition(camPos);
-		renderer->getCameraTargetPosition(camTarget);
+		
+		renderer->getActiveCamera()->getCameraPosition(camPos);
+		renderer->getActiveCamera()->getCameraTargetPosition(camTarget);
 
 		btVector3	rayFrom = camPos;
 		btVector3 rayForward = (camTarget-camPos);
@@ -228,7 +231,7 @@ struct CommonRigidBodyBase : public ExampleInterface
 
 		btVector3 rayTo = getRayTo(int(x), int(y));
 		btVector3 rayFrom;
-		renderer->getCameraPosition(rayFrom);
+		renderer->getActiveCamera()->getCameraPosition(rayFrom);
 		movePickedBody(rayFrom,rayTo);
 
 		return false;
@@ -252,7 +255,7 @@ struct CommonRigidBodyBase : public ExampleInterface
 			if(button==0 && (!window->isModifiedKeyPressed(B3G_ALT) && !window->isModifiedKeyPressed(B3G_CONTROL) ))
 			{
 				btVector3 camPos;
-				renderer->getCameraPosition(camPos);
+				renderer->getActiveCamera()->getCameraPosition(camPos);
 
 				btVector3 rayFrom = camPos;
 				btVector3 rayTo = getRayTo(int(x),int(y));
diff --git a/examples/ExampleBrowser/OpenGLExampleBrowser.cpp b/examples/ExampleBrowser/OpenGLExampleBrowser.cpp
index 2ce7b8a53..fdfd077b3 100644
--- a/examples/ExampleBrowser/OpenGLExampleBrowser.cpp
+++ b/examples/ExampleBrowser/OpenGLExampleBrowser.cpp
@@ -554,9 +554,9 @@ bool OpenGLExampleBrowser::init(int argc, char* argv[])
 	prevKeyboardCallback = s_window->getKeyboardCallback();
 	s_window->setKeyboardCallback(MyKeyboardCallback);
 
-	s_app->m_renderer->setCameraDistance(13);
-	s_app->m_renderer->setCameraPitch(0);
-	s_app->m_renderer->setCameraTargetPosition(0,0,0);
+	s_app->m_renderer->getActiveCamera()->setCameraDistance(13);
+	s_app->m_renderer->getActiveCamera()->setCameraPitch(0);
+	s_app->m_renderer->getActiveCamera()->setCameraTargetPosition(0,0,0);
 
 	b3SetCustomWarningMessageFunc(MyStatusBarWarning);
 	b3SetCustomPrintfFunc(MyStatusBarPrintf);
@@ -701,7 +701,10 @@ void OpenGLExampleBrowser::update(float deltaTime)
         dg.upAxis = s_app->getUpAxis();
 
         {
-            BT_PROFILE("Update Camera");
+            BT_PROFILE("Update Camera and Light");
+
+	
+
             s_instancingRenderer->updateCamera(dg.upAxis);
         }
 
diff --git a/examples/ForkLift/ForkLiftDemo.cpp b/examples/ForkLift/ForkLiftDemo.cpp
index 91f373eff..01ebf1c24 100644
--- a/examples/ForkLift/ForkLiftDemo.cpp
+++ b/examples/ForkLift/ForkLiftDemo.cpp
@@ -1305,7 +1305,7 @@ btRigidBody* ForkLiftDemo::localCreateRigidBody(btScalar mass, const btTransform
 	return body;
 }
 
-struct ExampleInterface*    ForkLiftCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
+ExampleInterface*    ForkLiftCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
 {
 	return new ForkLiftDemo(helper);
 }
diff --git a/examples/ForkLift/ForkLiftDemo.h b/examples/ForkLift/ForkLiftDemo.h
index 101f7dcf0..4d82eddd4 100644
--- a/examples/ForkLift/ForkLiftDemo.h
+++ b/examples/ForkLift/ForkLiftDemo.h
@@ -15,7 +15,7 @@ subject to the following restrictions:
 #ifndef FORKLIFT_DEMO_H
 #define FORKLIFT_DEMO_H
 
- struct ExampleInterface*    ForkLiftCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    ForkLiftCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 #endif // FORKLIFT_DEMO_H
 
diff --git a/examples/GyroscopicDemo/GyroscopicSetup.cpp b/examples/GyroscopicDemo/GyroscopicSetup.cpp
index c03b30e6a..9ee3c4e1b 100644
--- a/examples/GyroscopicDemo/GyroscopicSetup.cpp
+++ b/examples/GyroscopicDemo/GyroscopicSetup.cpp
@@ -44,7 +44,7 @@ GyroscopicSetup::GyroscopicSetup(struct GUIHelperInterface* helper)
 
 void GyroscopicSetup::initPhysics()
 {
-	m_guiHelper->setUpAxis(2);
+	m_guiHelper->setUpAxis(1);
 	createEmptyDynamicsWorld();
 	m_dynamicsWorld->setGravity(btVector3(0, 0, 0));
 	m_guiHelper->createPhysicsDebugDrawer(m_dynamicsWorld);
@@ -91,7 +91,7 @@ void GyroscopicSetup::initPhysics()
 
     {
         //btCollisionShape* groundShape = new btBoxShape(btVector3(btScalar(50.),btScalar(50.),btScalar(0.5)));
-        btCollisionShape* groundShape = new btStaticPlaneShape(btVector3(0, 0, 1), 0);
+        btCollisionShape* groundShape = new btStaticPlaneShape(btVector3(0, 1, 0), 0);
         
         m_collisionShapes.push_back(groundShape);
         btTransform groundTransform;
diff --git a/examples/Importers/ImportBsp/ImportBspExample.h b/examples/Importers/ImportBsp/ImportBspExample.h
index 342da4d2e..3e8a6b4de 100644
--- a/examples/Importers/ImportBsp/ImportBspExample.h
+++ b/examples/Importers/ImportBsp/ImportBspExample.h
@@ -15,7 +15,7 @@ subject to the following restrictions:
 #ifndef BSP_DEMO_H
 #define BSP_DEMO_H
 
- struct ExampleInterface*    ImportBspCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    ImportBspCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 
 #endif //BSP_DEMO_H
diff --git a/examples/Importers/ImportObjDemo/ImportObjExample.cpp b/examples/Importers/ImportObjDemo/ImportObjExample.cpp
index d70d09491..05aa90b07 100644
--- a/examples/Importers/ImportObjDemo/ImportObjExample.cpp
+++ b/examples/Importers/ImportObjDemo/ImportObjExample.cpp
@@ -99,7 +99,7 @@ void ImportObjSetup::initPhysics()
 	}
 }
 
- struct ExampleInterface*    ImportObjCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
+ ExampleInterface*    ImportObjCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
  {
 	 return new ImportObjSetup(helper);
  }
diff --git a/examples/Importers/ImportObjDemo/ImportObjExample.h b/examples/Importers/ImportObjDemo/ImportObjExample.h
index abc811375..472d84b95 100644
--- a/examples/Importers/ImportObjDemo/ImportObjExample.h
+++ b/examples/Importers/ImportObjDemo/ImportObjExample.h
@@ -1,7 +1,7 @@
 #ifndef IMPORT_OBJ_EXAMPLE_H
 #define IMPORT_OBJ_EXAMPLE_H
 
- struct ExampleInterface*    ImportObjCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    ImportObjCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 
 #endif //IMPORT_OBJ_EXAMPLE_H
diff --git a/examples/OpenGLWindow/GLInstancingRenderer.cpp b/examples/OpenGLWindow/GLInstancingRenderer.cpp
index f160a75d4..11709002e 100644
--- a/examples/OpenGLWindow/GLInstancingRenderer.cpp
+++ b/examples/OpenGLWindow/GLInstancingRenderer.cpp
@@ -19,14 +19,13 @@ bool useShadowMap=true;//false;//true;
 int shadowMapWidth=8192;
 int shadowMapHeight=8192;
 float shadowMapWorldSize=100;
-float WHEEL_MULTIPLIER=0.01f;
-float MOUSE_MOVE_MULTIPLIER = 0.4f;
+
 #define MAX_POINTS_IN_BATCH 1024
 #define MAX_LINES_IN_BATCH 1024
 
 
 #include "OpenGLInclude.h"
-#include "b3gWindowInterface.h"
+#include "../CommonInterfaces/CommonWindowInterface.h"
 //#include "Bullet3Common/b3MinMax.h"
 
 #ifndef __APPLE__
@@ -141,20 +140,7 @@ extern int gShapeIndex;
 struct InternalDataRenderer : public GLInstanceRendererInternalData
 {
 
-
-	b3Vector3 m_cameraPosition;
-	b3Vector3 m_cameraTargetPosition;
-	float m_cameraDistance;
-	b3Vector3 m_cameraUp;
-	float m_azi;
-	float m_ele;
-
-	float m_mouseXpos;
-	float m_mouseYpos;
-	bool m_mouseInitialized;
-	int m_leftMouseButton;
-	int m_middleMouseButton;
-	int m_rightMouseButton;
+	SimpleCamera	m_defaultCamera;
 
 	GLfloat m_projectionMatrix[16];
 	GLfloat m_viewMatrix[16];
@@ -165,25 +151,10 @@ struct InternalDataRenderer : public GLInstanceRendererInternalData
 
 	GLRenderToTexture*	m_shadowMap;
 	GLuint				m_shadowTexture;
-	int	m_altPressed;
-	int	m_controlPressed;
-
+	
 	InternalDataRenderer() :
-		m_cameraPosition(b3MakeVector3(0,0,0)),
-		m_cameraTargetPosition(b3MakeVector3(15,2,-24)),
-		m_cameraDistance(150),
-		m_cameraUp(b3MakeVector3(0,1,0)),
-		m_azi(100.f),//135.f),
-		//m_ele(25.f),
-		m_ele(25.f),
-		m_mouseInitialized(false),
-		m_leftMouseButton(0),
-		m_middleMouseButton(0),
-		m_rightMouseButton(0),
 		m_shadowMap(0),
-		m_shadowTexture(0),
-		m_altPressed(0),
-		m_controlPressed(0)
+		m_shadowTexture(0)
 	{
 		//clear to zero to make it obvious if the matrix is used uninitialized
 		for (int i=0;i<16;i++)
@@ -194,113 +165,7 @@ struct InternalDataRenderer : public GLInstanceRendererInternalData
 
 	}
 
-	void wheelCallback( float deltax, float deltay)
-    {
-		if (!m_leftMouseButton)
-		{
-
-			if (deltay<0 || m_cameraDistance>1)
-			{
-				m_cameraDistance -= deltay*0.1f;
-				if (m_cameraDistance<1)
-					m_cameraDistance=1;
-			} else
-			{
-				b3Vector3 fwd = m_cameraTargetPosition-m_cameraPosition;
-				fwd.normalize();
-				m_cameraTargetPosition += fwd*deltay*WHEEL_MULTIPLIER;
-			}
-        } else
-		{
-			if (b3Fabs(deltax)>b3Fabs(deltay))
-			{
-				b3Vector3 fwd = m_cameraTargetPosition-m_cameraPosition;
-				b3Vector3 side = m_cameraUp.cross(fwd);
-				side.normalize();
-				m_cameraTargetPosition += side * deltax*WHEEL_MULTIPLIER;
-
-			} else
-			{
-				m_cameraTargetPosition -= m_cameraUp * deltay*WHEEL_MULTIPLIER;
-
-			}
-		}
-	}
-
-	void mouseMoveCallback(float x, float y)
-	{
-//        printf("moved to %f,%f\n",x,y);
-		if (m_altPressed || m_controlPressed)
-		{
-			float xDelta = x-m_mouseXpos;
-			float yDelta = y-m_mouseYpos;
-
-			if (m_leftMouseButton)
-			{
-	//			if (b3Fabs(xDelta)>b3Fabs(yDelta))
-	//			{
-					m_azi -= xDelta*MOUSE_MOVE_MULTIPLIER;
-	//			} else
-	//			{
-					m_ele += yDelta*MOUSE_MOVE_MULTIPLIER;
-	//			}
-			}
-			if (m_middleMouseButton)
-			{
-				m_cameraTargetPosition += m_cameraUp * yDelta*0.01;
-
-
-				b3Vector3 fwd = m_cameraTargetPosition-m_cameraPosition;
-				b3Vector3 side = m_cameraUp.cross(fwd);
-				side.normalize();
-				m_cameraTargetPosition += side * xDelta*0.01;
-
-			}
-			if (m_rightMouseButton)
-			{
-					m_cameraDistance -= xDelta*0.01f;
-					m_cameraDistance -= yDelta*0.01f;
-					if (m_cameraDistance<1)
-						m_cameraDistance=1;
-					if (m_cameraDistance>1000)
-						m_cameraDistance=1000;
-			}
-		}
-
-		//printf("m_azi/pitch = %f\n", m_azi);
-//		printf("m_ele/yaw = %f\n", m_ele);
-
-		m_mouseXpos = x;
-		m_mouseYpos = y;
-		m_mouseInitialized = true;
-	}
-
-	void mouseButtonCallback(int button, int state, float x, float y)
-	{
-
-		if (button==0)
-			m_leftMouseButton=state;
-		if (button==1)
-			m_middleMouseButton=state;
-
-		if (button==2)
-			m_rightMouseButton=state;
-
-		m_mouseXpos = x;
-		m_mouseYpos = y;
-		m_mouseInitialized = true;
-	}
-	void keyboardCallback(int key, int state)
-	{
-		if (key==B3G_CONTROL)
-		{
-			m_controlPressed=state;
-		}
-		if (key==B3G_ALT)
-		{
-			m_altPressed = state;
-		}
-	}
+	
 
 };
 
@@ -309,28 +174,6 @@ struct	GLInstanceRendererInternalData* GLInstancingRenderer::getInternalData()
 	return m_data;
 }
 
-void b3DefaultWheelCallback(float deltax, float deltay)
-{
-	if (sData2)
-		sData2->wheelCallback(deltax,deltay);
-}
-void b3DefaultMouseButtonCallback(int button, int state, float x, float y)
-{
-	if (sData2)
-		sData2->mouseButtonCallback(button, state, x, y);
-}
-void b3DefaultMouseMoveCallback( float x, float y)
-{
-	if (sData2)
-		sData2->mouseMoveCallback( x, y);
-}
-
-void b3DefaultKeyboardCallback(int key, int state)
-{
-	if (sData2)
-		sData2->keyboardCallback(key,state);
-}
-
 
 static GLuint               linesShader;        // The line renderer
 static GLuint               useShadowMapInstancingShader;        // The shadow instancing renderer
@@ -966,111 +809,6 @@ void GLInstancingRenderer::init()
 }
 
 
-static void    b3CreateFrustum(
-                        float left,
-                        float right,
-                        float bottom,
-                        float top,
-                        float nearVal,
-                        float farVal,
-                        float frustum[16])
-{
-
-    frustum[0*4+0] = (float(2) * nearVal) / (right - left);
-    frustum[0*4+1] = float(0);
-    frustum[0*4+2] = float(0);
-    frustum[0*4+3] = float(0);
-
-    frustum[1*4+0] = float(0);
-    frustum[1*4+1] = (float(2) * nearVal) / (top - bottom);
-    frustum[1*4+2] = float(0);
-    frustum[1*4+3] = float(0);
-
-    frustum[2*4+0] = (right + left) / (right - left);
-    frustum[2*4+1] = (top + bottom) / (top - bottom);
-    frustum[2*4+2] = -(farVal + nearVal) / (farVal - nearVal);
-    frustum[2*4+3] = float(-1);
-
-    frustum[3*4+0] = float(0);
-    frustum[3*4+1] = float(0);
-    frustum[3*4+2] = -(float(2) * farVal * nearVal) / (farVal - nearVal);
-    frustum[3*4+3] = float(0);
-
-}
-
-
-static void b3Matrix4x4Mul(GLfloat aIn[4][4], GLfloat bIn[4][4], GLfloat result[4][4])
-{
-	for (int j=0;j<4;j++)
-		for (int i=0;i<4;i++)
-			result[j][i] = aIn[0][i] * bIn[j][0] + aIn[1][i] * bIn[j][1] + aIn[2][i] * bIn[j][2] + aIn[3][i] * bIn[j][3];
-}
-
-static void b3Matrix4x4Mul16(GLfloat aIn[16], GLfloat bIn[16], GLfloat result[16])
-{
-	for (int j=0;j<4;j++)
-		for (int i=0;i<4;i++)
-			result[j*4+i] = aIn[0*4+i] * bIn[j*4+0] + aIn[1*4+i] * bIn[j*4+1] + aIn[2*4+i] * bIn[j*4+2] + aIn[3*4+i] * bIn[j*4+3];
-}
-
-
-static void b3CreateDiagonalMatrix(GLfloat value, GLfloat result[4][4])
-{
-	for (int i=0;i<4;i++)
-	{
-		for (int j=0;j<4;j++)
-		{
-			if (i==j)
-			{
-				result[i][j] = value;
-			} else
-			{
-				result[i][j] = 0.f;
-			}
-		}
-	}
-}
-
-static void b3CreateOrtho(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar, GLfloat result[4][4])
-{
-	b3CreateDiagonalMatrix(1.f,result);
-
-	result[0][0] = 2.f / (right - left);
-	result[1][1] = 2.f / (top - bottom);
-	result[2][2] = - 2.f / (zFar - zNear);
-	result[3][0] = - (right + left) / (right - left);
-	result[3][1] = - (top + bottom) / (top - bottom);
-	result[3][2] = - (zFar + zNear) / (zFar - zNear);
-}
-
-static void    b3CreateLookAt(const b3Vector3& eye, const b3Vector3& center,const b3Vector3& up, GLfloat result[16])
-{
-    b3Vector3 f = (center - eye).normalized();
-    b3Vector3 u = up.normalized();
-    b3Vector3 s = (f.cross(u)).normalized();
-    u = s.cross(f);
-
-    result[0*4+0] = s.x;
-    result[1*4+0] = s.y;
-    result[2*4+0] = s.z;
-
-	result[0*4+1] = u.x;
-    result[1*4+1] = u.y;
-    result[2*4+1] = u.z;
-
-    result[0*4+2] =-f.x;
-    result[1*4+2] =-f.y;
-    result[2*4+2] =-f.z;
-
-	result[0*4+3] = 0.f;
-    result[1*4+3] = 0.f;
-    result[2*4+3] = 0.f;
-
-    result[3*4+0] = -s.dot(eye);
-    result[3*4+1] = -u.dot(eye);
-    result[3*4+2] = f.dot(eye);
-    result[3*4+3] = 1.f;
-}
 
 
 void	GLInstancingRenderer::resize(int width, int height)
@@ -1079,188 +817,53 @@ void	GLInstancingRenderer::resize(int width, int height)
 	m_screenHeight = height;
 }
 
+
+const CommonCameraInterface* GLInstancingRenderer::getActiveCamera() const
+{
+	return &m_data->m_defaultCamera;
+}
+
+CommonCameraInterface* GLInstancingRenderer::getActiveCamera()
+{
+	return &m_data->m_defaultCamera;
+}
+
+
+void GLInstancingRenderer::setActiveCamera(CommonCameraInterface* cam)
+{
+	b3Assert(0);//not supported yet
+}
+
+
 void GLInstancingRenderer::updateCamera(int upAxis)
 {
 
     b3Assert(glGetError() ==GL_NO_ERROR);
-
 	m_upAxis = upAxis;
-	int m_forwardAxis(-1);
 	switch (upAxis)
 	{
     case 1:
-    	m_forwardAxis = 2;
-    	m_data->m_cameraUp = b3MakeVector3(0,1,0);
-    	gLightPos = b3MakeVector3(-50.f,100,30);
+    		gLightPos = b3MakeVector3(-50.f,100,30);
     	break;
     case 2:
-			m_forwardAxis = 1;
-			m_data->m_cameraUp = b3MakeVector3(0,0,1);
 			gLightPos = b3MakeVector3(-50.f,30,100);
 			break;
     default:
     b3Assert(0);
 	};
 
+	m_data->m_defaultCamera.setCameraUpAxis(upAxis);
+	m_data->m_defaultCamera.setAspectRatio((float)m_screenWidth/(float)m_screenHeight);
+	m_data->m_defaultCamera.update();
 
-    float m_frustumZNear=0.01;
-    float m_frustumZFar=1000.f;
-
-
-//    m_azi=m_azi+0.01;
-	b3Scalar rele = m_data->m_ele * b3Scalar(0.01745329251994329547);// rads per deg
-	b3Scalar razi = m_data->m_azi * b3Scalar(0.01745329251994329547);// rads per deg
-
-
-	b3Quaternion rot(m_data->m_cameraUp,razi);
-
-  b3Vector3 eyePos = b3MakeVector3(0,0,0);
-	eyePos[m_forwardAxis] = -m_data->m_cameraDistance;
-
-	b3Vector3 forward = b3MakeVector3(eyePos[0],eyePos[1],eyePos[2]);
-	if (forward.length2() < B3_EPSILON)
-	{
-		forward.setValue(1.f,0.f,0.f);
-	}
-	b3Vector3 right = m_data->m_cameraUp.cross(forward);
-	b3Quaternion roll(right,-rele);
-
-	eyePos = b3Matrix3x3(rot) * b3Matrix3x3(roll) * eyePos;
-
-	m_data->m_cameraPosition[0] = eyePos.x;
-	m_data->m_cameraPosition[1] = eyePos.y;
-	m_data->m_cameraPosition[2] = eyePos.z;
-	m_data->m_cameraPosition += m_data->m_cameraTargetPosition;
-
-	if (m_screenWidth == 0 && m_screenHeight == 0)
-		return;
-
-	b3Scalar aspect;
-	b3Vector3 extents;
-
-	aspect = m_screenWidth / (b3Scalar)m_screenHeight;
-	extents.setValue(aspect * 1.0f, 1.0f,0);
-
-
-	if (m_screenWidth > m_screenHeight)
-	{
-		b3CreateFrustum(-aspect * m_frustumZNear, aspect * m_frustumZNear, -m_frustumZNear, m_frustumZNear, m_frustumZNear, m_frustumZFar,m_data->m_projectionMatrix);
-	} else
-	{
-		b3CreateFrustum(-aspect * m_frustumZNear, aspect * m_frustumZNear, -m_frustumZNear, m_frustumZNear, m_frustumZNear, m_frustumZFar,m_data->m_projectionMatrix);
-	}
-
-	b3CreateLookAt(m_data->m_cameraPosition,m_data->m_cameraTargetPosition,m_data->m_cameraUp,m_data->m_viewMatrix);
-
+	m_data->m_defaultCamera.getCameraProjectionMatrix(m_data->m_projectionMatrix);
+	m_data->m_defaultCamera.getCameraViewMatrix(m_data->m_viewMatrix);
+	
+	
 
 }
 
 
-void	GLInstancingRenderer::getCameraPosition(float cameraPos[4])
-{
-	cameraPos[0] = m_data->m_cameraPosition[0];
-	cameraPos[1] = m_data->m_cameraPosition[1];
-	cameraPos[2] = m_data->m_cameraPosition[2];
-	cameraPos[3] = 1.f;
-}
-
-void	GLInstancingRenderer::setCameraDistance(float dist)
-{
-	m_data->m_cameraDistance = dist;
-}
-
-void	GLInstancingRenderer::setCameraYaw(float yaw)
-{
-	m_data->m_ele = yaw;
-}
-void	GLInstancingRenderer::setCameraPitch(float pitch)
-{
-	m_data->m_azi = pitch;
-}
-
-float	GLInstancingRenderer::getCameraYaw() const
-{
-	return m_data->m_ele;
-}
-float	GLInstancingRenderer::getCameraPitch() const
-{
-	return m_data->m_azi;
-}
-
-void	GLInstancingRenderer::setCameraTargetPosition(float x, float y, float z)
-{
-	m_data->m_cameraTargetPosition = b3MakeVector3(x,y,z);
-}
-void	GLInstancingRenderer::setCameraTargetPosition(float cameraPos[4])
-{
-		setCameraTargetPosition(cameraPos[0],cameraPos[1],cameraPos[2]);
-}
-
-void	GLInstancingRenderer::getCameraTargetPosition(float cameraPos[4]) const
-{
-	cameraPos[0] = m_data->m_cameraTargetPosition.x;
-	cameraPos[1] = m_data->m_cameraTargetPosition.y;
-	cameraPos[2] = m_data->m_cameraTargetPosition.z;
-}
-
-
-float	GLInstancingRenderer::getCameraDistance() const
-{
-	return m_data->m_cameraDistance;
-}
-
-
-void GLInstancingRenderer::getMouseDirection(float* dir, int x, int y)
-{
-	float top = 1.f;
-	float bottom = -1.f;
-	float nearPlane = 1.f;
-	float tanFov = (top-bottom)*0.5f / nearPlane;
-	float fov = b3Scalar(2.0) * b3Atan(tanFov);
-
-	b3Vector3	rayFrom = m_data->m_cameraPosition;
-	b3Vector3 rayForward = (m_data->m_cameraTargetPosition-m_data->m_cameraPosition);
-	rayForward.normalize();
-	float farPlane = 10000.f;
-	rayForward*= farPlane;
-
-//	b3Vector3 rightOffset;
-	b3Vector3 vertical = m_data->m_cameraUp;
-
-	b3Vector3 hor;
-	hor = rayForward.cross(vertical);
-	hor.normalize();
-	vertical = hor.cross(rayForward);
-	vertical.normalize();
-
-	float tanfov = tanf(0.5f*fov);
-
-
-	hor *= 2.f * farPlane * tanfov;
-	vertical *= 2.f * farPlane * tanfov;
-
-	b3Scalar aspect;
-
-	aspect = m_screenWidth / (b3Scalar)m_screenHeight;
-
-	hor*=aspect;
-
-
-	b3Vector3 rayToCenter = rayFrom + rayForward;
-	b3Vector3 dHor = hor * 1.f/float(m_screenWidth);
-	b3Vector3 dVert = vertical * 1.f/float(m_screenHeight);
-
-
-	b3Vector3 rayTo = rayToCenter - 0.5f * hor + 0.5f * vertical;
-	rayTo += b3Scalar(x) * dHor;
-	rayTo -= b3Scalar(y) * dVert;
-
-	dir[0] = rayTo[0];
-	dir[1] = rayTo[1];
-	dir[2] = rayTo[2];
-
-}
-
 
 
 //#define STB_IMAGE_WRITE_IMPLEMENTATION
@@ -1560,6 +1163,119 @@ struct PointerCaster
 
 
 };
+
+
+
+
+static void    b3CreateFrustum(
+                        float left,
+                        float right,
+                        float bottom,
+                        float top,
+                        float nearVal,
+                        float farVal,
+                        float frustum[16])
+{
+
+    frustum[0*4+0] = (float(2) * nearVal) / (right - left);
+    frustum[0*4+1] = float(0);
+    frustum[0*4+2] = float(0);
+    frustum[0*4+3] = float(0);
+
+    frustum[1*4+0] = float(0);
+    frustum[1*4+1] = (float(2) * nearVal) / (top - bottom);
+    frustum[1*4+2] = float(0);
+    frustum[1*4+3] = float(0);
+
+    frustum[2*4+0] = (right + left) / (right - left);
+    frustum[2*4+1] = (top + bottom) / (top - bottom);
+    frustum[2*4+2] = -(farVal + nearVal) / (farVal - nearVal);
+    frustum[2*4+3] = float(-1);
+
+    frustum[3*4+0] = float(0);
+    frustum[3*4+1] = float(0);
+    frustum[3*4+2] = -(float(2) * farVal * nearVal) / (farVal - nearVal);
+    frustum[3*4+3] = float(0);
+
+}
+
+
+static void b3Matrix4x4Mul(GLfloat aIn[4][4], GLfloat bIn[4][4], GLfloat result[4][4])
+{
+	for (int j=0;j<4;j++)
+		for (int i=0;i<4;i++)
+			result[j][i] = aIn[0][i] * bIn[j][0] + aIn[1][i] * bIn[j][1] + aIn[2][i] * bIn[j][2] + aIn[3][i] * bIn[j][3];
+}
+
+static void b3Matrix4x4Mul16(GLfloat aIn[16], GLfloat bIn[16], GLfloat result[16])
+{
+	for (int j=0;j<4;j++)
+		for (int i=0;i<4;i++)
+			result[j*4+i] = aIn[0*4+i] * bIn[j*4+0] + aIn[1*4+i] * bIn[j*4+1] + aIn[2*4+i] * bIn[j*4+2] + aIn[3*4+i] * bIn[j*4+3];
+}
+
+
+static void b3CreateDiagonalMatrix(GLfloat value, GLfloat result[4][4])
+{
+	for (int i=0;i<4;i++)
+	{
+		for (int j=0;j<4;j++)
+		{
+			if (i==j)
+			{
+				result[i][j] = value;
+			} else
+			{
+				result[i][j] = 0.f;
+			}
+		}
+	}
+}
+
+static void b3CreateOrtho(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar, GLfloat result[4][4])
+{
+	b3CreateDiagonalMatrix(1.f,result);
+
+	result[0][0] = 2.f / (right - left);
+	result[1][1] = 2.f / (top - bottom);
+	result[2][2] = - 2.f / (zFar - zNear);
+	result[3][0] = - (right + left) / (right - left);
+	result[3][1] = - (top + bottom) / (top - bottom);
+	result[3][2] = - (zFar + zNear) / (zFar - zNear);
+}
+
+static void    b3CreateLookAt(const b3Vector3& eye, const b3Vector3& center,const b3Vector3& up, GLfloat result[16])
+{
+    b3Vector3 f = (center - eye).normalized();
+    b3Vector3 u = up.normalized();
+    b3Vector3 s = (f.cross(u)).normalized();
+    u = s.cross(f);
+
+    result[0*4+0] = s.x;
+    result[1*4+0] = s.y;
+    result[2*4+0] = s.z;
+
+	result[0*4+1] = u.x;
+    result[1*4+1] = u.y;
+    result[2*4+1] = u.z;
+
+    result[0*4+2] =-f.x;
+    result[1*4+2] =-f.y;
+    result[2*4+2] =-f.z;
+
+	result[0*4+3] = 0.f;
+    result[1*4+3] = 0.f;
+    result[2*4+3] = 0.f;
+
+    result[3*4+0] = -s.dot(eye);
+    result[3*4+1] = -u.dot(eye);
+    result[3*4+2] = f.dot(eye);
+    result[3*4+3] = 1.f;
+}
+
+
+
+
 void GLInstancingRenderer::renderSceneInternal(int renderMode)
 {
 
@@ -1644,7 +1360,9 @@ void GLInstancingRenderer::renderSceneInternal(int renderMode)
 	b3CreateOrtho(-shadowMapWorldSize,shadowMapWorldSize,-shadowMapWorldSize,shadowMapWorldSize,1,300,depthProjectionMatrix);//-14,14,-14,14,1,200, depthProjectionMatrix);
 	float depthViewMatrix[4][4];
 	b3Vector3 center = b3MakeVector3(0,0,0);
-	b3Vector3 up =b3MakeVector3(0,1,0);
+	float upf[3];
+	m_data->m_defaultCamera.getCameraUpVector(upf);
+	b3Vector3 up = b3MakeVector3(upf[0],upf[1],upf[2]);
 	b3CreateLookAt(gLightPos,center,up,&depthViewMatrix[0][0]);
 	//b3CreateLookAt(lightPos,m_data->m_cameraTargetPosition,b3Vector3(0,1,0),(float*)depthModelViewMatrix2);
 
@@ -1912,18 +1630,3 @@ void GLInstancingRenderer::enableShadowMap()
 
 }
 
-void	GLInstancingRenderer::getCameraViewMatrix(float viewMat[16]) const
-{
-	for (int i=0;i<16;i++)
-	{
-		viewMat[i] = m_data->m_viewMatrix[i];
-	}
-	
-}
-void	GLInstancingRenderer::getCameraProjectionMatrix(float projMat[16]) const
-{
-	for (int i=0;i<16;i++)
-	{
-		projMat[i] = m_data->m_projectionMatrix[i];
-	}
-}
diff --git a/examples/OpenGLWindow/GLInstancingRenderer.h b/examples/OpenGLWindow/GLInstancingRenderer.h
index c39389125..97ab43a86 100644
--- a/examples/OpenGLWindow/GLInstancingRenderer.h
+++ b/examples/OpenGLWindow/GLInstancingRenderer.h
@@ -18,12 +18,9 @@ subject to the following restrictions:
 
 #include "Bullet3Common/b3AlignedObjectArray.h"
 #include "../CommonInterfaces/CommonRenderInterface.h"
+#include "SimpleCamera.h"
 
 
-void b3DefaultMouseButtonCallback( int button, int state, float x, float y);
-void b3DefaultMouseMoveCallback(  float x, float y);
-void b3DefaultKeyboardCallback(int key, int state);
-void b3DefaultWheelCallback( float deltax, float deltay);
 
 
 
@@ -48,6 +45,7 @@ class GLInstancingRenderer : public CommonRenderInterface
 	void renderSceneInternal(int renderMode=B3_DEFAULT_RENDERMODE);
 
 	
+	
 public:
 	GLInstancingRenderer(int m_maxObjectCapacity, int maxShapeCapacityInBytes = 56*1024*1024);
 	virtual ~GLInstancingRenderer();
@@ -95,8 +93,7 @@ public:
 	virtual void writeSingleInstanceColorToCPU(float* color, int srcIndex);
 	virtual void writeSingleInstanceColorToCPU(double* color, int srcIndex);
 
-	virtual void getMouseDirection(float* dir, int mouseX, int mouseY);
-
+	
 	struct	GLInstanceRendererInternalData* getInternalData();
 
 	virtual void drawLine(const float from[4], const float to[4], const float color[4], float lineWidth=1);
@@ -107,44 +104,11 @@ public:
 	virtual void drawPoint(const double* position, const double color[4], double pointDrawSize=1);
 	virtual void updateCamera(int upAxis=1);
 
-	virtual void	getCameraPosition(float cameraPos[4]);
-	virtual void	getCameraPosition(double cameraPos[4])
-    {
-        float campos[4];
-        getCameraPosition(campos);
-        cameraPos[0] = campos[0];
-        cameraPos[1] = campos[1];
-        cameraPos[2] = campos[2];
-        cameraPos[3] = campos[3];
-    }
-
-	virtual void	setCameraDistance(float dist);
-	virtual float	getCameraDistance() const;
-
-	//set the camera 'target'
-	virtual void	setCameraTargetPosition(float x, float y, float z);
-	virtual void	setCameraTargetPosition(float cameraPos[4]);
-	virtual void	getCameraTargetPosition(float cameraPos[4]) const;
-    virtual void	getCameraTargetPosition(double cameraPos[4]) const
-    {
-        float campos[4];
-        getCameraTargetPosition(campos);
-        cameraPos[0] = campos[0];
-        cameraPos[1] = campos[1];
-        cameraPos[2] = campos[2];
-        cameraPos[3] = campos[3];
-        
-    }
+	virtual const CommonCameraInterface* getActiveCamera() const;
+	virtual CommonCameraInterface* getActiveCamera();
+	virtual void setActiveCamera(CommonCameraInterface* cam);
+	
 	
-	virtual void	setCameraYaw(float yaw);
-	virtual void	setCameraPitch(float pitch);
-	virtual float	getCameraYaw() const;
-	virtual float	getCameraPitch() const;
-
-	virtual void	getCameraViewMatrix(float viewMat[16]) const;
-	virtual void	getCameraProjectionMatrix(float projMat[16]) const;
-
-
 	virtual void	resize(int width, int height);
 	virtual int	getScreenWidth()
 	{
diff --git a/examples/OpenGLWindow/SimpleCamera.cpp b/examples/OpenGLWindow/SimpleCamera.cpp
index 4f3ea7902..d14764231 100644
--- a/examples/OpenGLWindow/SimpleCamera.cpp
+++ b/examples/OpenGLWindow/SimpleCamera.cpp
@@ -149,6 +149,11 @@ void SimpleCamera::setCameraUpAxis(int upAxis)
 	update();
 }
 
+int		SimpleCamera::getCameraUpAxis() const
+{
+	return m_data->m_cameraUpAxis;
+}
+
 void SimpleCamera::update()
 {
 
@@ -230,6 +235,11 @@ void	SimpleCamera::setCameraTargetPosition(float x,float y,float z)
 	m_data->m_cameraTargetPosition.setValue(x,y,z);
 	update();
 }
+float	SimpleCamera::getCameraDistance() const
+{
+	return m_data->m_cameraDistance;
+}
+
 void	SimpleCamera::setCameraDistance(float dist)
 {
 	m_data->m_cameraDistance = dist;
@@ -241,12 +251,25 @@ void	SimpleCamera::setCameraUpVector(float x,float y ,float z)
 	update();
 }
 
+void	SimpleCamera::getCameraUpVector(float up[3]) const
+{
+	up[0] = float(m_data->m_cameraUp[0]);
+	up[1] = float(m_data->m_cameraUp[1]);
+	up[2] = float(m_data->m_cameraUp[2]);
+}
+
+
 void	SimpleCamera::setCameraYaw(float yaw)
 {
 	m_data->m_yaw = yaw;
 	update();
 }
 
+float	SimpleCamera::getCameraYaw() const
+{
+	return m_data->m_yaw;
+}
+
 void	SimpleCamera::setCameraPitch(float pitch)
 {
 	m_data->m_pitch = pitch;
@@ -258,3 +281,12 @@ void	SimpleCamera::setAspectRatio(float ratio)
 	m_data->m_aspect = ratio;
 	update();
 }
+
+float	SimpleCamera::getCameraPitch() const
+{
+	return m_data->m_pitch;
+}
+float	SimpleCamera::getAspectRatio() const
+{
+	return m_data->m_aspect;
+}
diff --git a/examples/OpenGLWindow/SimpleCamera.h b/examples/OpenGLWindow/SimpleCamera.h
index 5506d884f..5a499e5bf 100644
--- a/examples/OpenGLWindow/SimpleCamera.h
+++ b/examples/OpenGLWindow/SimpleCamera.h
@@ -1,11 +1,7 @@
 #ifndef SIMPLE_CAMERA_H
 #define SIMPLE_CAMERA_H
 
-struct CommonCameraInterface
-{
-	virtual void getCameraProjectionMatrix(float m[16])const = 0;
-	virtual void getCameraViewMatrix(float m[16]) const = 0;
-};
+#include "../CommonInterfaces/CommonCameraInterface.h"
 
 struct SimpleCamera : public CommonCameraInterface
 {
@@ -23,14 +19,22 @@ struct SimpleCamera : public CommonCameraInterface
 
 	virtual void	setCameraTargetPosition(float x,float y,float z);
 	virtual void	setCameraDistance(float dist);
+	virtual float	getCameraDistance() const;
+
 	virtual void	setCameraUpVector(float x,float y, float z);
+	void			getCameraUpVector(float up[3]) const;
 	///the setCameraUpAxis will call the 'setCameraUpVector' and 'setCameraForwardVector'
 	virtual void	setCameraUpAxis(int axis);
-	virtual void	setCameraYaw(float yaw);
-	
-	virtual void	setCameraPitch(float pitch);
-	virtual void	setAspectRatio(float ratio);
+	virtual int		getCameraUpAxis() const;
 
+	virtual void	setCameraYaw(float yaw);
+	virtual float	getCameraYaw() const;
+
+	virtual void	setCameraPitch(float pitch);
+	virtual float	getCameraPitch() const;
+
+	virtual void	setAspectRatio(float ratio);
+	virtual float	getAspectRatio() const;
 };
 
 #endif //SIMPLE_CAMERA_H
\ No newline at end of file
diff --git a/examples/OpenGLWindow/SimpleOpenGL2Renderer.cpp b/examples/OpenGLWindow/SimpleOpenGL2Renderer.cpp
index 6016e57d0..a1108f8e4 100644
--- a/examples/OpenGLWindow/SimpleOpenGL2Renderer.cpp
+++ b/examples/OpenGLWindow/SimpleOpenGL2Renderer.cpp
@@ -15,6 +15,19 @@ void SimpleOpenGL2Renderer::init()
 {
 }
 
+const CommonCameraInterface* SimpleOpenGL2Renderer::getActiveCamera() const
+{
+	return &m_camera;
+}
+CommonCameraInterface* SimpleOpenGL2Renderer::getActiveCamera()
+{
+	return &m_camera;
+}
+void SimpleOpenGL2Renderer::setActiveCamera(CommonCameraInterface* cam)
+{
+	b3Assert(0);//not supported yet
+}
+
 void SimpleOpenGL2Renderer::updateCamera(int upAxis)
 {
     float projection[16];
@@ -43,56 +56,6 @@ void SimpleOpenGL2Renderer::removeAllInstances()
 {
 }
 
-void SimpleOpenGL2Renderer::setCameraDistance(float dist)
-{
-    m_camera.setCameraDistance(dist);
-}
-
-void SimpleOpenGL2Renderer::setCameraPitch(float pitch)
-{
-    m_camera.setCameraPitch(pitch);
-}
-
-void SimpleOpenGL2Renderer::setCameraTargetPosition(float x, float y, float z)
-{
-    m_camera.setCameraTargetPosition(x,y,z);
-}
-    
-void	SimpleOpenGL2Renderer::getCameraPosition(float cameraPos[4])
-{
-    float pos[3];
-    m_camera.getCameraPosition(pos);
-    cameraPos[0] = pos[0];
-    cameraPos[1] = pos[1];
-    cameraPos[2] = pos[2];
-    
-}
-
-void	SimpleOpenGL2Renderer::getCameraPosition(double cameraPos[4])
-{
-    float pos[3];
-    m_camera.getCameraPosition(pos);
-    cameraPos[0] = pos[0];
-    cameraPos[1] = pos[1];
-    cameraPos[2] = pos[2];
-}
-    
-void	SimpleOpenGL2Renderer::setCameraTargetPosition(float cameraPos[4])
-{
-    m_camera.setCameraTargetPosition(cameraPos[0],cameraPos[1],cameraPos[2]);
-}
-
-void	SimpleOpenGL2Renderer::getCameraTargetPosition(float cameraPos[4]) const
-{
-    m_camera.getCameraTargetPosition(cameraPos);
-}
-
-void	SimpleOpenGL2Renderer::getCameraTargetPosition(double cameraPos[4]) const
-{
-    cameraPos[0] = 1;
-    cameraPos[1] = 1;
-    cameraPos[2] = 1;
-}
 
 void SimpleOpenGL2Renderer::writeSingleInstanceColorToCPU(float* color, int srcIndex)
 {
diff --git a/examples/OpenGLWindow/SimpleOpenGL2Renderer.h b/examples/OpenGLWindow/SimpleOpenGL2Renderer.h
index a8cd11647..9e1127380 100644
--- a/examples/OpenGLWindow/SimpleOpenGL2Renderer.h
+++ b/examples/OpenGLWindow/SimpleOpenGL2Renderer.h
@@ -17,23 +17,12 @@ struct SimpleOpenGL2Renderer : public CommonRenderInterface
     
     virtual void updateCamera(int upAxis);
     
+	virtual const CommonCameraInterface* getActiveCamera() const;
+	virtual CommonCameraInterface* getActiveCamera();
+	virtual void setActiveCamera(CommonCameraInterface* cam);
+
     virtual void removeAllInstances();
     
-    virtual void setCameraDistance(float dist);
-    
-    virtual void setCameraPitch(float pitch);
-    
-    virtual void setCameraTargetPosition(float x, float y, float z);
-    
-    virtual void	getCameraPosition(float cameraPos[4]);
-    
-    virtual void	getCameraPosition(double cameraPos[4]);
-    
-    virtual void	setCameraTargetPosition(float cameraPos[4]);
-    
-    virtual void	getCameraTargetPosition(float cameraPos[4]) const;
-    
-    virtual void	getCameraTargetPosition(double cameraPos[4]) const;
     
     virtual void writeSingleInstanceColorToCPU(float* color, int srcIndex);
     virtual void writeSingleInstanceColorToCPU(double* color, int srcIndex);
diff --git a/examples/OpenGLWindow/SimpleOpenGL3App.cpp b/examples/OpenGLWindow/SimpleOpenGL3App.cpp
index 11fa60707..568f9e7d7 100644
--- a/examples/OpenGLWindow/SimpleOpenGL3App.cpp
+++ b/examples/OpenGLWindow/SimpleOpenGL3App.cpp
@@ -66,10 +66,24 @@ static void SimpleKeyboardCallback(int key, int state)
         gApp->m_window->setRequestExit();
     } else
     {
-        b3DefaultKeyboardCallback(key,state);
+        //gApp->defaultKeyboardCallback(key,state);
     }
 }
 
+void SimpleMouseButtonCallback( int button, int state, float x, float y)
+{
+	gApp->defaultMouseButtonCallback(button,state,x,y);
+}
+void SimpleMouseMoveCallback(  float x, float y)
+{
+	gApp->defaultMouseMoveCallback(x,y);
+}
+	
+void SimpleWheelCallback( float deltax, float deltay)
+{
+	gApp->defaultWheelCallback(deltax,deltay);
+}
+
 
 
 
@@ -152,10 +166,10 @@ SimpleOpenGL3App::SimpleOpenGL3App(	const char* title, int width,int height)
 
 	m_instancingRenderer->InitShaders();
 
-	m_window->setMouseMoveCallback(b3DefaultMouseMoveCallback);
-	m_window->setMouseButtonCallback(b3DefaultMouseButtonCallback);
+	m_window->setMouseMoveCallback(SimpleMouseMoveCallback);
+	m_window->setMouseButtonCallback(SimpleMouseButtonCallback);
     m_window->setKeyboardCallback(SimpleKeyboardCallback);
-    m_window->setWheelCallback(b3DefaultWheelCallback);
+    m_window->setWheelCallback(SimpleWheelCallback);
 	m_window->setResizeCallback(SimpleResizeCallback);
 
 	TwGenerateDefaultFonts();
@@ -200,12 +214,14 @@ void SimpleOpenGL3App::drawText3D( const char* txt, float worldPosX, float world
 
 	float viewMat[16];
 	float projMat[16];
-	m_instancingRenderer->getCameraViewMatrix(viewMat);
-	m_instancingRenderer->getCameraProjectionMatrix(projMat);
+	CommonCameraInterface* cam = m_instancingRenderer->getActiveCamera();
+
+	cam->getCameraViewMatrix(viewMat);
+	cam->getCameraProjectionMatrix(projMat);
 
 	
 	float camPos[4];
-	this->m_instancingRenderer->getCameraPosition(camPos);
+	cam->getCameraPosition(camPos);
 	b3Vector3 cp= b3MakeVector3(camPos[0],camPos[2],camPos[1]);
 	b3Vector3 p = b3MakeVector3(worldPosX,worldPosY,worldPosZ);
 	//float dist = (cp-p).length();
diff --git a/examples/OpenGLWindow/SimpleOpenGL3App.h b/examples/OpenGLWindow/SimpleOpenGL3App.h
index 2ccdcbb6c..ff9d323be 100644
--- a/examples/OpenGLWindow/SimpleOpenGL3App.h
+++ b/examples/OpenGLWindow/SimpleOpenGL3App.h
@@ -3,7 +3,7 @@
 
 #include "../OpenGLWindow/GLInstancingRenderer.h"
 #include "../OpenGLWindow/GLPrimitiveRenderer.h"
-#include "../OpenGLWindow/b3gWindowInterface.h"
+#include "../CommonInterfaces/CommonWindowInterface.h"
 
 #include "../CommonInterfaces/CommonGraphicsAppInterface.h"
 
diff --git a/examples/OpenGLWindow/Win32Window.h b/examples/OpenGLWindow/Win32Window.h
index d382653be..e2dccdfcc 100644
--- a/examples/OpenGLWindow/Win32Window.h
+++ b/examples/OpenGLWindow/Win32Window.h
@@ -21,7 +21,7 @@ subject to the following restrictions:
 
 struct InternalData2;
 
-#include "b3gWindowInterface.h"
+#include "../CommonInterfaces/CommonWindowInterface.h"
 
 class Win32Window : public b3gWindowInterface
 {
diff --git a/examples/OpenGLWindow/b3gWindowInterface.h b/examples/OpenGLWindow/b3gWindowInterface.h
deleted file mode 100644
index 675a8da1b..000000000
--- a/examples/OpenGLWindow/b3gWindowInterface.h
+++ /dev/null
@@ -1,126 +0,0 @@
-#ifndef B3G_WINDOW_INTERFACE_H
-#define B3G_WINDOW_INTERFACE_H
-
-
-typedef void (*b3WheelCallback)(float deltax, float deltay);
-typedef void (*b3ResizeCallback)( float width, float height);
-typedef void (*b3MouseMoveCallback)( float x, float y);
-typedef void (*b3MouseButtonCallback)(int button, int state, float x, float y);
-typedef void (*b3KeyboardCallback)(int keycode, int state);
-typedef void (*b3RenderCallback) ();
-
-enum {
-	B3G_ESCAPE = 27,
-	B3G_F1 = 0xff00,
-	B3G_F2,
-	B3G_F3,
-	B3G_F4,
-	B3G_F5,
-	B3G_F6,
-	B3G_F7,
-	B3G_F8,
-	B3G_F9,
-	B3G_F10,
-	B3G_F11,
-	B3G_F12,
-	B3G_F13,
-	B3G_F14,
-	B3G_F15,
-	B3G_LEFT_ARROW,
-	B3G_RIGHT_ARROW,
-	B3G_UP_ARROW,
-	B3G_DOWN_ARROW,
-	B3G_PAGE_UP,
-	B3G_PAGE_DOWN,
-	B3G_END,
-	B3G_HOME,
-	B3G_INSERT,
-	B3G_DELETE,
-	B3G_BACKSPACE,
-	B3G_SHIFT,
-	B3G_CONTROL,
-	B3G_ALT,
-	B3G_RETURN
-};
-
-struct b3gWindowConstructionInfo
-{
-		int m_width;
-		int m_height;
-		bool m_fullscreen;
-		int m_colorBitsPerPixel;
-		void* m_windowHandle;
-		const char* m_title;
-		int m_openglVersion;
-    
-
-		b3gWindowConstructionInfo(int width=1024, int height=768)
-		:m_width(width),
-			m_height(height),
-			m_fullscreen(false),
-			m_colorBitsPerPixel(32),
-			m_windowHandle(0),
-			m_title("title"),
-			m_openglVersion(3)
-			{
-			}
-};
-
-
-class b3gWindowInterface
-{
-	public:
-		
-		virtual ~b3gWindowInterface()
-		{
-		}
-
-		virtual void	createDefaultWindow(int width, int height, const char* title)
-		{
-			b3gWindowConstructionInfo ci(width,height);
-			ci.m_title = title;
-			createWindow(ci);
-		}
-
-		virtual	void	createWindow(const b3gWindowConstructionInfo& ci)=0;
-		
-		virtual void	closeWindow()=0;
-
-		virtual void	runMainLoop()=0;
-		virtual	float	getTimeInSeconds()=0;
-
-		virtual bool	requestedExit() const = 0;
-		virtual	void	setRequestExit() = 0;
-
-		virtual	void	startRendering()=0;
-
-		virtual	void	endRendering()=0;
-
-		virtual bool	isModifiedKeyPressed(int key) = 0;
-		
-		virtual void setMouseMoveCallback(b3MouseMoveCallback	mouseCallback)=0;
-		virtual b3MouseMoveCallback getMouseMoveCallback()=0;
-		
-		virtual void setMouseButtonCallback(b3MouseButtonCallback	mouseCallback)=0;
-		virtual b3MouseButtonCallback getMouseButtonCallback()=0;
-
-		virtual void setResizeCallback(b3ResizeCallback	resizeCallback)=0;
-		virtual b3ResizeCallback getResizeCallback()=0;
-		
-		virtual void setWheelCallback(b3WheelCallback wheelCallback)=0;
-		virtual b3WheelCallback getWheelCallback()=0;
-		
-		virtual void setKeyboardCallback( b3KeyboardCallback	keyboardCallback)=0;
-		virtual b3KeyboardCallback	getKeyboardCallback()=0;
-
-		virtual void setRenderCallback( b3RenderCallback renderCallback) = 0;
-	
-		virtual void setWindowTitle(const char* title)=0;
-
-		virtual	float	getRetinaScale() const =0;
-
-        virtual int fileOpenDialog(char* fileName, int maxFileNameLength) = 0;
-    
-};
-
-#endif //B3G_WINDOW_INTERFACE_H
\ No newline at end of file
diff --git a/examples/RenderingExamples/CoordinateSystemDemo.h b/examples/RenderingExamples/CoordinateSystemDemo.h
index 7c4933b74..0da2989ab 100644
--- a/examples/RenderingExamples/CoordinateSystemDemo.h
+++ b/examples/RenderingExamples/CoordinateSystemDemo.h
@@ -1,7 +1,7 @@
 #ifndef COORDINATE_SYSTEM_DEMO_H
 #define COORDINATE_SYSTEM_DEMO_H
 
-struct ExampleInterface*    CoordinateSystemCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class	ExampleInterface*    CoordinateSystemCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 
 #endif //COORDINATE_SYSTEM_DEMO_H
diff --git a/examples/RenderingExamples/RaytracerSetup.cpp b/examples/RenderingExamples/RaytracerSetup.cpp
index da1ade226..a8bbd4123 100644
--- a/examples/RenderingExamples/RaytracerSetup.cpp
+++ b/examples/RenderingExamples/RaytracerSetup.cpp
@@ -378,7 +378,7 @@ void RaytracerPhysicsSetup::syncPhysicsToGraphics(GraphicsPhysicsBridge& gfxBrid
 {
 }
 
- struct ExampleInterface*    RayTracerCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
+ ExampleInterface*    RayTracerCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
  {
 	 return new RaytracerPhysicsSetup(helper->getAppInterface());
  }
\ No newline at end of file
diff --git a/examples/RenderingExamples/RaytracerSetup.h b/examples/RenderingExamples/RaytracerSetup.h
index e3430b90c..ff8f9f351 100644
--- a/examples/RenderingExamples/RaytracerSetup.h
+++ b/examples/RenderingExamples/RaytracerSetup.h
@@ -1,6 +1,6 @@
 #ifndef RAYTRACER_SETUP_H
 #define RAYTRACER_SETUP_H
 
- struct ExampleInterface*    RayTracerCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    RayTracerCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 #endif //RAYTRACER_SETUP_H
diff --git a/examples/RenderingExamples/RenderInstancingDemo.cpp b/examples/RenderingExamples/RenderInstancingDemo.cpp
index 549c9082c..b10905df0 100644
--- a/examples/RenderingExamples/RenderInstancingDemo.cpp
+++ b/examples/RenderingExamples/RenderInstancingDemo.cpp
@@ -128,7 +128,7 @@ public:
 };
 
 
-struct ExampleInterface*    RenderInstancingCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
+class	ExampleInterface*    RenderInstancingCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option)
 {
 	return new RenderInstancingDemo(helper->getAppInterface());
 }
diff --git a/examples/RenderingExamples/RenderInstancingDemo.h b/examples/RenderingExamples/RenderInstancingDemo.h
index 892b9cfc1..4c9d27d54 100644
--- a/examples/RenderingExamples/RenderInstancingDemo.h
+++ b/examples/RenderingExamples/RenderInstancingDemo.h
@@ -1,6 +1,6 @@
 #ifndef RENDER_INSTANCING_DEMO_H
 #define RENDER_INSTANCING_DEMO_H
 
- struct ExampleInterface*    RenderInstancingCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
+class ExampleInterface*    RenderInstancingCreateFunc(struct PhysicsInterface* pint, struct GUIHelperInterface* helper, int option);
 
 #endif //RENDER_INSTANCING_DEMO_H