
This will take you back to the options portion of the Bump
channel.
Before moving on, let’s briefly talk about copying chan-
nels. You can very quickly and easily copy channels just by
clicking on any channel button and dragging it to another. Try
it out by copying your Bump channel to your Diffuse channel.
Just click and drag the Smoke map over the None button next
to Diffuse.
You will see a dialog box similar to the one that appears
when you copy objects in your scene. This behaves exactly
the same way it does in your scenes, so pick Copy. You’ll see
your sphere’s color change to what the Bump map channel is
being affected by. To remove this, simply click ...