Apple Shake 4 - Manual (Page 902)

902 Chapter 29 Optimizing and Troubleshooting Your Scripts
Important: QuickTime movies compressed using the Animation codec (which only
supports the RGB color space) are also assumed to have been created with a gamma of
1.8. As a result, these clips are also boosted to 2.2 when edited into a sequence set to 8-
or 10-bit YUV rendering.
Note: For more information on setting the rendering options of a sequence in the
Video Processing tab of the Sequence Settings dialog, refer the Final Cut Pro User
Manual.
Avoiding Bad Habits
The following are common problems that come up, and are things that should
generally be avoided when you’re putting together scripts from scratch.
Don’t Mask Layer Nodes
The side-input masks for layer nodes should not be used, as they behave counter-
intuitively and will not produce the result you might expect. If you want to mask a
layering node, mask the input nodes, or use the KeyMix node.
Don’t Reorder Images Before Masking
This pops up a lot in client scripts, which is a Reorder node applied to an image before
it is fed into a mask. This is unnecessary because mask inputs, as well as the
SwitchMatte and KeyMix nodes, have channel selectors. There is probably no
computational difference, but it is one more node in the tree.