# Step 2: Retouch the Elbow Joint

In this step, you will use the Brush tool to retouch the line art on the elbow joint.

You must select a drawing element, the frame that contains the drawing you want to retouch, and a drawing tool. You can draw directly in the Camera View window.

All elements that are shown in the Timeline window will appear in the Camera View window.

To retouch the elbow joint:

1. In the Timeline window, select the “forearm left” element.

2. Drag the red frame slider to the frame 15 in the scene. At frame 15, the gap between the upper arm and forearm is the greatest. Correcting the drawing at this frame should fix the error for the duration of the animation.

3. From the Drawing Tools toolbar, select the Brush tool. To open the Drawing Tools toolbar, select Window > Show Drawing Tools.

As soon as you activate one of the drawing tools, you enter in “Edit Drawing” mode.

4. Set up your drawing space so that you can work on the elbow.

- If the grid is on, you will see it in the Camera View. Press [G] to turn it off.
- To zoom in, press [X].
- To pan the window, press [Spacebar] and drag the window.

5. In the Properties window, click the Pen tab, set your Minimum Size to 4 and the Maximum Size to 6.

6. From the Color Palette tab, select the “line” swatch from the “tania” palette.

7. Use the Brush tool to connect the stroke on the forearm to the stroke on the upper arm.

8. Click Play and watch the elbow as it bends. If there are any problems in your retouching, undo what you did and try again. Click Stop to stop the playback before you try to redo your work.