Apple Shake 4 - Manual (Page 141)

Chapter 4 Using Proxies 141
Using Temporary Proxies
Unless you specifically do otherwise, Shake generates temporary proxies (also called
on-the-fly proxies) that are created only for frames that are displayed, as needed, and
that are discarded once your computer’s disk cache is full.
Whenever you set the useProxy parameter to something other then Base, Shake scales
down the resolution of frames at the position of the playhead as you view them, in
order to accelerate your script’s performance. Unlike the interactiveScale setting, the
image is left at the proxy resolution until you return the useProxy parameter to the
Base resolution.
Important: The useProxy parameter affects both Flipbooks and FileOut nodes.
Temporary proxy images are written first into memory, and then to the disk cache as
memory runs out. Shake keeps track of how many times each cached frame has been
viewed, and eliminates the least viewed frames first when the cache runs out of room.
To change to a lower proxy using the default proxy resolutions, do one of the
following:
m In the Globals tab, switch useProxy from Base to P1, P2, or P3.
m Use the pull-down button menu in the title bar.
When activated, the proxy button in the title bar is highlighted with the selected proxy.