Apple Shake 4 - Manual (Page 59)

Chapter 1 An Overview of the Shake User Interface 59
The Compare Mode button in the Viewer shelf indicates that you are in vertical
compare mode.
To create a horizontal split screen:
m Drag the Compare control up on the right highlighted edge.
The Compare Mode button in the Viewer shelf indicates that you are in horizontal
compare mode.
Alternatively, you can toggle between vertical and horizontal split screens by using the
Compare Mode button.
Note: A common mistake is to slide the Compare control all the way to the left or right
(or top or bottom)—one image disappears and only the second image is revealed. The
result is that changes to a node’s parameters don’t update the Viewer. To avoid this,
turn off the Compare Mode to ensure you are looking at the current image.
To turn off split-screen viewing:
m Click the Compare Mode button in the Viewer shelf.
The split screen is removed and the button is no longer highlighted.
If the Compare Mode button is set to No Compare and the Viewer is still not updating,
make sure that the Update Mode is set to On.