Para 3d is a collection of Level 2 scripted plug-ins from Parametric Zoo for Autodesk 3ds Max and 3ds Max Design. It lets users interact with and manipulate MaxScript functions to build rule-based design and animation. Its building blocks are Para Nodes, which behave like 3ds Max Helper objects: they store information about Max objects and can interact with them in a variety of ways.
Unlike Helper objects created from the Create Panel, Para Nodes can only be created and modified through Para 3d. The Para UI collects every Para Node in the scene and displays them as discrete nodes in the Para settings dialog. Nodes fall into two categories, Para Helper Objects and Para Controllers: Helpers handle interaction with 3ds Max objects, while Controllers work only in connection with Helpers, sending instructions that the Helpers use to perform operations on Max objects.
Version 5.0 ensured compatibility with 3ds Max 2021 and added mesh subdivision and smoothing to the Edit Poly node. This release lets the Link controller work with the Edit Poly node, supports construction of XY, YZ and ZX planes at a given point, and converts Object and Ray value types into strings through the Text controller.