PhotoshopStacking is a Program that automates the beauty rebuild process going from a CGI Render to a prepared Photoshop File with support for all render elements produced by Redshift (can easily be modified to work with other Engines too).
It runs as a fully independent process detached from Photoshop for performance reasons
and therefore runs the whole process in 25 seconds on a dataset of 32 Images at 6000x4500 Pixels, while Photoshop natively takes 2:45 Minutes to perform just the loading of these images.
These speeds are achieved thanks to having fully multithreaded the Cryptomatte Decoding as well as any Image Color Transforms needed.
As well as automatically detecting AOVs and different Image layers, it allows for interactive monitoring of the whole process via a Log Window with built-in exception handling and a hierarchical preview.
PhotoshopStacking comes with a Cryptomatte Renaming Utility that allows you to preview all Object IDs overlayed on your render or a solid fill color.
As an output you get the prepared Photoshop file sorted away in layers with the right blendmodes applied.