= How to |> move smoke with an object =

# Create an [Icon:DOP/rbdobject][RBD Object|/shelf/rbdobject].

# Create a smoke object using the [Icon:SHELF/box_smoke][Smoke Container|/shelf/smokebox] and [Icon:SHELF/convert_to_smoke][Smoke from Object|/shelf/smokefromobject] tools on the shelf.

# Turn off the display flag of your smoke object.

    [Image:/images/howto/movesmoke.png]
    
    In this example the sphere is the RBD object, and the torus is the smoke object.

# Dive into the [AutoDopNetwork|Node:obj/dopnet], click on the [Smoke Object|Node:dop/smokeobject] node and delete the path in the __Temperature SOP Path__ so that the smoke doesn't rise.

# Reconnect the [Gravity|Node:dop/gravity] node so that it only affects the object, not the smoke.

    [Image:/images/howto/movesmoke_nodes.png]
    
# Play this simulation.

     [Image:/images/howto/movesmoke2.png]
     
     You will see the smoke wrap around the object and get pulled downwards as the object passes through. This is useful to simulate objects moving through smoke or clouds.