Apple Shake 4 - Manual (Page 475)

Chapter 17 Layered Photoshop Files and the MultiLayer Node 475
The postMMult Parameter
In the MultiLayer parameters, postMMult is enabled by default. When turned on, the
postMMult parameter premultiplies the output image produced by the MultiLayer node
(in the same manner as a composite in the Photoshop application).
For more information on the other buttons in the MultiLayer parameters, see “ Using the
MultiLayer Node ” on page 478.
Photoshop Layer Visibility
When you import a Photoshop file that contains invisible layers (the eye icon is
disabled in Photoshop), the visibility for that layer (the FileIn node) is disabled in Shake.
To show the layer, toggle the layer’s visibility button in the MultiLayer node parameters.
Premultiplication is enabled by default.
Layer Visibility button