diff --git a/Code/GamePhysics/Implementation/SimpleRigidBody.cpp b/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
index 88899259..29f64144 100644
--- a/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
+++ b/Code/GamePhysics/Implementation/SimpleRigidBody.cpp
@@ -266,6 +266,11 @@ UpdateState SimpleRigidBody::Update( Float timeStepLength )
 	return UpdateState_altered;
 }
 
+void SimpleRigidBody::Predict( Float4 &outDeltaPos, Float4 &outDeltaAxis, const Float4 &actingLinearImpulse, const Float4 &actingAngularImpulse, Float deltaTime )
+{
+	this->rigid.Predict_LeapFrog( outDeltaPos, outDeltaAxis, actingLinearImpulse, actingAngularImpulse, deltaTime );
+}
+
 void SimpleRigidBody::SetScene( void *scene )
 {
 	this->scene = (Octree*)scene;
diff --git a/Code/GamePhysics/Implementation/SimpleRigidBody.h b/Code/GamePhysics/Implementation/SimpleRigidBody.h
index f407ad1d..c7d915ef 100644
--- a/Code/GamePhysics/Implementation/SimpleRigidBody.h
+++ b/Code/GamePhysics/Implementation/SimpleRigidBody.h
@@ -36,6 +36,7 @@ namespace Oyster { namespace Physics
 		//::Oyster::Math::Float4x4 &		GetView( ::Oyster::Math::Float4x4 &targetMem = ::Oyster::Math::Float4x4() ) const;
 
 		UpdateState Update( ::Oyster::Math::Float timeStepLength );
+		void Predict( ::Oyster::Math::Float4 &outDeltaPos, ::Oyster::Math::Float4 &outDeltaAxis, const ::Oyster::Math::Float4 &actingLinearImpulse, const ::Oyster::Math::Float4 &actingAngularImpulse, ::Oyster::Math::Float deltaTime );
 
 		void SetScene( void *scene );
 		void SetSubscription( EventAction_Collision functionPointer );
diff --git a/Code/GamePhysics/PhysicsAPI.h b/Code/GamePhysics/PhysicsAPI.h
index 3e91a103..d1727a85 100644
--- a/Code/GamePhysics/PhysicsAPI.h
+++ b/Code/GamePhysics/PhysicsAPI.h
@@ -337,6 +337,11 @@ namespace Oyster
 			 * Is called during API::Update
 			 ********************************************************/
 			virtual UpdateState Update( ::Oyster::Math::Float timeStepLength ) = 0;
+
+			/********************************************************
+			 * @todo TODO: add doc
+			 ********************************************************/
+			virtual void Predict( ::Oyster::Math::Float4 &outDeltaPos, ::Oyster::Math::Float4 &outDeltaAxis, const ::Oyster::Math::Float4 &actingLinearImpulse, const ::Oyster::Math::Float4 &actingAngularImpulse, ::Oyster::Math::Float deltaTime ) = 0;
 			
 			/********************************************************
 			 * Sets which scene this ICustomBody is within.