VRayPattern is a plug-in for 3ds Max and V-Ray that allows you to multiply geometry without extra memory consumption. As a sample, you can use any tiled geometry (or whose with unobtrusive joints). The plug-in is best used where huge amounts of geometries are required, but without great accuracy.

Ornatrix is a system designed to solve the problem of creating hair and hair-shaped structures. To achieve this goal it employs a variety of tools and automation to allow the user to work in an easy and intuitive environment.

Thea for 3dsMax incorporates all the capabilities of Thea Render inside 3D Studio and adopts an easy workflow for the user which makes the process of switching to the new render engine as easy as it can get.

  https://gumroad.com/l/auqXp

This script is a must have for medium polygon modeling.
Weighted Vertex Normals or Face Weighted Normals use the area of the face to tune the vertices normals.
This script does this for you with just one click.
Unlike others FWN Scripts, this one considers coplanar faces like they were a unique big face
You can disable this feature to get an standard FWN result, or increase threshold for not completely flat surfaces

FloorGenerator is a plugin for 3ds Max (2013 to 2018) which generates floor objects consisting of individual boards which can easily be textured using MultiTexture. It's a great tool if you're doing architecture visualization and need to make floors that are NOT going to tile and that you can see up close without any pixilation.

Ornatrix is a system designed to solve the problem of creating hair and hair-shaped structures. To achieve this goal it employs a variety of tools and automation to allow the user to work in an easy and intuitive environment.

Xrayunwrap 2.0 has been released! Compatible with 3ds Max 2009 to 3ds Max 2019 The easiest, finest and cheapest solution to the modern UV creation is back! Xrayunwrap is the real single click solution to speed up your work pipeline in the creation of UV mapping. With this new version we focused on enhancing the UI to improve work pipeline, allowing to edit vertex, polys, UV shells in a more dynamic way. Also we introduced some features which have been suggested by our customers to make Xrayunwrap more powerful and user friendly. Following we highlighted the most interesting features among the new introduced.

It allows you to visualize and manage the Smoothing Groups in a quick and easy way. You can set Hard and Soft edges, select edges by convexity, copy, paste, modify and optimize Smoothing Groups, as well as convert them from and to UV mapping, among many other features.

Spline Data is a really handy tool to get realtime information about the spline curves in your 3ds Max scene.
It shows plenty of helpful data on a simple rollout floater, wich you can place wherever you like on your screen.
Instantly get informed about the number of shapes, curves, segments, vertices, etc. in your scene or selection.

Addition to the 3d Max to work with lighting, a lot of ready-made installations of lighting, which makes it easy to easy to create scenes with realistic lighting, Octagon Soft Light, fluorescent lamps, and much more. This is supported in 3dsMax and VRay version. Now it is easy to make a beautiful lighting in the studio. You can create any combination of lighting as you like and receive depending on this beautiful studio visualization images.

Solid Angle 3ds Max to Arnold 2.1.945 for 3ds Max 2018-2019 | 269 / 269 MB

 
Arnold is an advanced Monte Carlo ray tracing renderer built for the demands of feature-length animation and visual effects. Originally co-developed with Sony Pictures Imageworks and now their main renderer, Arnold is used at over 300 studios worldwide including ILM, Framestore, MPC, The Mill and Digic Pictures. Arnold was the rimary renderer on dozens of films from Monster House and Cloudy with a Chance of Meatballs to Pacific Rim and Gravity.