diff --git a/Code/GamePhysics/PhysicsStructs-Impl.h b/Code/GamePhysics/PhysicsStructs-Impl.h
index 2f218095..512c8e7a 100644
--- a/Code/GamePhysics/PhysicsStructs-Impl.h
+++ b/Code/GamePhysics/PhysicsStructs-Impl.h
@@ -16,6 +16,9 @@ namespace Oyster
 				this->centerPosition = ::Oyster::Math::Float4::standard_unit_w;
 				this->size = ::Oyster::Math::Float4( 1.0f );
 				this->mass = 12.0f;
+				this->restitutionCoeff = 1.0f;
+				this->frictionCoeff_Dynamic = 0.5f;
+				this->frictionCoeff_Static = 0.5f;
 				this->inertiaTensor = ::Oyster::Math::Float4x4::identity;
 				this->subscription_onCollision = NULL;
 				this->subscription_onMovement = NULL;
@@ -28,6 +31,9 @@ namespace Oyster
 				this->centerPosition = ::Oyster::Math::Float4::standard_unit_w;
 				this->radius = 0.5f;
 				this->mass = 10.0f;
+				this->restitutionCoeff = 1.0f;
+				this->frictionCoeff_Dynamic = 0.5f;
+				this->frictionCoeff_Static = 0.5f;
 				this->subscription_onCollision = NULL;
 				this->subscription_onMovement = NULL;
 				this->ignoreGravity = false;
diff --git a/Code/GamePhysics/PhysicsStructs.h b/Code/GamePhysics/PhysicsStructs.h
index 1d3d58dd..eafe2b20 100644
--- a/Code/GamePhysics/PhysicsStructs.h
+++ b/Code/GamePhysics/PhysicsStructs.h
@@ -14,6 +14,9 @@ namespace Oyster { namespace Physics
 			::Oyster::Math::Float4 centerPosition;
 			::Oyster::Math::Float4 size;
 			::Oyster::Math::Float mass;
+			::Oyster::Math::Float restitutionCoeff;
+			::Oyster::Math::Float frictionCoeff_Static;
+			::Oyster::Math::Float frictionCoeff_Dynamic;
 			::Oyster::Math::Float4x4 inertiaTensor;
 			::Oyster::Physics::ICustomBody::EventAction_Collision subscription_onCollision;
 			::Oyster::Physics::ICustomBody::EventAction_Move subscription_onMovement;
@@ -28,6 +31,9 @@ namespace Oyster { namespace Physics
 			::Oyster::Math::Float4 centerPosition;
 			::Oyster::Math::Float radius;
 			::Oyster::Math::Float mass;
+			::Oyster::Math::Float restitutionCoeff;
+			::Oyster::Math::Float frictionCoeff_Static;
+			::Oyster::Math::Float frictionCoeff_Dynamic;
 			::Oyster::Physics::ICustomBody::EventAction_Collision subscription_onCollision;
 			::Oyster::Physics::ICustomBody::EventAction_Move subscription_onMovement;
 			bool ignoreGravity;