Save the image in a node
Save the image in the viewer
Render the result of a compositing network
You can optionally apply a color look-up table (LUT) to the output as you save it.
Mapping planes to image channels
When you save to a file format that supports deep rasters (Houdini
pic format), you can save all planes. When you save image data to
a non-deep raster image file format such as TIFF, you can map
different planes to the 3 or 4 channels available.
For example, the regular mapping would be to store the Color
C.b) in the TIFF’s RGB channels and the
A) plane in the TIFF’s Alpha channel. However, you could
instead choose to store the Normal plane in the TIFF’s RGB channels,
and store the Depth plane in the TIFF’s Alpha channel.