2011

If the render pass file names do not have extensions or if the extension does
not correspond to an image file format that Composite can import, a warning
is issued, but the render pass composition is still created and its Import node
holds the specified sequence path, however, it produces a red X frame.
The render pass footage can be anywhere on disk, organized in an arbitrary
folder hierarchy. The files can be in any format that Composite supports
during import—see
Supported Media Formats on page 116. If rendered to
OpenEXR, the render passes can be stored in any file channel. The
pre-compositing import is totally independent from the way images are
organized on disk.
If the render pass was rendered from many cameras of a camera set
(stereoscopy), the file sequences of each render camera are imported in the
same render pass composition, each with it own Import node and output
node. The name of the output nodes is suffixed by its corresponding camera
name. The camera anchor is set on the output node.
NOTE Unlike other footage compositions which have an Original Footage and a
working version, a render pass composition initially has only one version, the
working version.
Render Pass Composition Updates
A render pass composition update can be started when there is a new version
of the rendered files on disk (includes changes to the rendered files path, the
frame range, their image format, the OpenEXR channels the pass is stored in
if any, etc.).
When updating a render pass composition, a new empty version of the render
pass composition is created if you turned on the Backup Version option in
the Pre-Compositing Import dialog box, and the new render pass file sequence
Render Pass Compositions | 315