Apple Shake 4 - Manual (Page 896)

896 Chapter 29 Optimizing and Troubleshooting Your Scripts
To strip out the RGB channels, leaving the alpha:
m Enter the following command-line function:
shake mymask.#.tif -bri 0 -fo mynewmask.#.iff
To strip out the alpha channel, force the RGB as a monochrome 1 channel:
m Enter the following command-line function:
shake mymask.#.tif -mono -setAlpha 0 -fo mynewmask.#.iff
Note: Shake automatically optimizes itself to read only the channel it needs.
To save out a BW image as RGB for compatibility with other applications:
m Do one of the following:
• Set the RGB output in the FileOut.
• Use the command line function -forcergb:
shake myBWimage.#.iff -forcergb -fo myRGBimage.#.iff
Concatenating Color-Correction and Transform Nodes
Many nodes in the Color and Transform tabs concatenate with nodes of the same type
(that is, Color nodes with Color nodes, Transform nodes with Transform nodes). The
nodes compile several connected nodes into one render pass, preserving quality and
decreasing processing time. Nodes that concatenate are marked with a “C.”