Apple Shake 4 - Manual (Page 83)

Chapter 1 An Overview of the Shake User Interface 83
There is a significant difference in rendering speed, even though both images are the
same resolution.
Assigning a DOD
All images from disk are automatically assigned a DOD that is equal to the resolution of
the image. There are five ways to alter the DOD:
• Images generated in Shake have a DOD. For example, nodes from the Image tab such
as RGrad, Text, and RotoShape automatically have an assigned DOD.
• The DOD of an image from disk that is transformed or filtered is automatically
recalculated. For example, the following image is read in (imported) and scaled down
and/or rotated with a Move2D.
Also, if an image is blurred, the DOD expands accordingly.
• A rendered .iff file from Shake is embedded with a DOD. When Shake writes an .iff
file, it automatically saves the DOD information. Only the .iff format embeds the DOD.
In the following example, the image that was written out in the previous (above)
example is read back into Shake.