3ds Max CAT vs dpAutoRigSystem

3ds Max CAT has no write-up on Specifiction yet; its figures are above.

dpAutoRigSystem is a free, open-source Python script for automating rigging in Maya. Its modular, multilingual, object-oriented design lets users assemble components into rigs. The documented process uses guides as rig blueprints, then parents them, sets rig attributes, adjusts controller shapes, skins the model, and prepares it for animation. A rebuilding feature supports updates to an existing rig. Skinning tools can create skinCluster nodes and change joint influences on selected geometry. Skin weights can be copied by closest-point or UV-space methods, or exported and imported as JSON files. Installation involves placing the dpAutoRigSystem folder in Maya’s scripts directory or another MAYA_PATH, then launching it with Python in Maya’s Script Editor. It runs with Maya on Linux, macOS, and Windows. The project says it was created to help users make rigs themselves, is GPL-2.0 licensed, and links to a wiki for documentation; maintainers invite questions, suggestions, and comments.