diff --git a/Bin/Content/Shaders/TextureDebug.cso b/Bin/Content/Shaders/TextureDebug.cso
index 0dc6bcff..23c9aa23 100644
Binary files a/Bin/Content/Shaders/TextureDebug.cso and b/Bin/Content/Shaders/TextureDebug.cso differ
diff --git a/Code/GamePhysics/Implementation/SimpleRigidBody.cpp b/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
index 934c843f..80e352ea 100644
--- a/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
+++ b/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
@@ -124,6 +124,12 @@ Float4x4 & SimpleRigidBody::GetView( Float4x4 &targetMem ) const
 	return targetMem = this->rigid.GetView();
 }
 
+Float3 SimpleRigidBody::GetRigidLinearVelocity() const
+{
+	return this->rigid.GetLinearVelocity();
+}
+
+
 UpdateState SimpleRigidBody::Update( Float timeStepLength )
 {
 	this->rigid.Update_LeapFrog( timeStepLength );
diff --git a/Code/GamePhysics/Implementation/SimpleRigidBody.h b/Code/GamePhysics/Implementation/SimpleRigidBody.h
index 774420c5..9eefeb48 100644
--- a/Code/GamePhysics/Implementation/SimpleRigidBody.h
+++ b/Code/GamePhysics/Implementation/SimpleRigidBody.h
@@ -18,6 +18,7 @@ namespace Oyster { namespace Physics
 		State GetState() const;
 		State & GetState( State &targetMem ) const;
 		void SetState( const State &state );
+		::Oyster::Math::Float3 GetRigidLinearVelocity() const;
 
 		void CallSubscription( const ICustomBody *proto, const ICustomBody *deuter );
 		bool IsAffectedByGravity() const;
diff --git a/Code/GamePhysics/Implementation/SphericalRigidBody.cpp b/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
index 34160192..364d7454 100644
--- a/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
+++ b/Code/GamePhysics/Implementation/SphericalRigidBody.cpp
@@ -126,6 +126,11 @@ Float4x4 & SphericalRigidBody::GetView( Float4x4 &targetMem ) const
 	return targetMem = this->rigid.GetView();
 }
 
+Float3 SphericalRigidBody::GetRigidLinearVelocity() const
+{
+	return this->rigid.GetLinearVelocity();
+}
+
 UpdateState SphericalRigidBody::Update( Float timeStepLength )
 {
 	this->rigid.Update_LeapFrog( timeStepLength );
diff --git a/Code/GamePhysics/Implementation/SphericalRigidBody.h b/Code/GamePhysics/Implementation/SphericalRigidBody.h
index 1aca514d..4d003f99 100644
--- a/Code/GamePhysics/Implementation/SphericalRigidBody.h
+++ b/Code/GamePhysics/Implementation/SphericalRigidBody.h
@@ -19,6 +19,7 @@ namespace Oyster { namespace Physics
 		State GetState() const;
 		State & GetState( State &targetMem = State() ) const;
 		void SetState( const State &state );
+		::Oyster::Math::Float3 GetRigidLinearVelocity() const;
 
 		void CallSubscription( const ICustomBody *proto, const ICustomBody *deuter );
 		bool IsAffectedByGravity() const;
diff --git a/Code/GamePhysics/PhysicsAPI.h b/Code/GamePhysics/PhysicsAPI.h
index 387bf0e6..84a3d639 100644
--- a/Code/GamePhysics/PhysicsAPI.h
+++ b/Code/GamePhysics/PhysicsAPI.h
@@ -243,6 +243,11 @@ namespace Oyster
 				SubscriptMessage_ignore_collision_response
 			};
 
+			/********************************************************
+			 * @param gameObjectRef: a pointer to the object in the game owning the rigid body.
+			 ********************************************************/
+			void* gameObjectRef;
+
 			typedef SubscriptMessage (*EventAction_Collision)( const ICustomBody *proto, const ICustomBody *deuter );
 			typedef Struct::SimpleBodyDescription SimpleBodyDescription;
 			typedef Struct::SphericalBodyDescription SphericalBodyDescription;
@@ -271,6 +276,11 @@ namespace Oyster
 			 ********************************************************/
 			virtual State & GetState( State &targetMem ) const = 0;
 
+			/********************************************************
+			 * @return the linear velocity of the rigid body in a vector.
+			 ********************************************************/
+			virtual Math::Float3 GetRigidLinearVelocity() const = 0;
+
 			/********************************************************
 			 * @todo TODO: need doc
 			 ********************************************************/