mMeshActor.RegisterProperty( "uLightPosition", lightPosition );
Property::Index lightSpinOffsetIndex = mMeshActor.RegisterProperty( "uLightSpinOffset", Vector2::ZERO );
mSpinAngleIndex = mMeshActor.RegisterProperty("uSpinAngle", 0.f );
mMeshActor.RegisterProperty( "uLightPosition", lightPosition );
Property::Index lightSpinOffsetIndex = mMeshActor.RegisterProperty( "uLightSpinOffset", Vector2::ZERO );
mSpinAngleIndex = mMeshActor.RegisterProperty("uSpinAngle", 0.f );