Fstorm v1.5.1C for 3DS Max 2016-2023
http://fstormrender.ru/
FStormRender has being developed by PinkSoft LTD since 2015 and becomes the most popular GPU render with architectural 3d artists due to its speed, quality and simplicity. FStormRender doesn't use any existing solutions implemented in other render engines and uses only inhouse technologies giving outstanding, unique and photorealistic result. FStormRender gets constantly improved by implementing new features and optimizing existing ones to keep GPU rendering leadership. FStormRender available only for 3ds max. 3ds max plugin is deeply integrated to 3ds max environment and supports all necessary features. Build-in scene converter easily and carefully converts any scene from Corona, VRay and Octane renders.

https://www.cgtrader.com/3d-models/scripts-plugins/modelling/polysnow-plus-for-3dsmax
PolySnow Plus
- PolySnow Plus is a C++ based & multithreaded 3dsMax plugin that creates realistic snow with a click.
- It includes 5 custom objects and 6 modifiers specificly designed for snow creation workflow.
- A variety of parameters lets you get the desired results in every situation.Make your 3d assets'
- winter versions with a click
- Easy to use
PolyDesign3D PolySlicer 1.01 for 3Ds Max 2016-2023
http://www.scriptspot.com/3ds-max/scripts/polyslicer-for-3dsmax
PolySlicer provides all the workflow from creating slices to unwrapping for creating a complete cg model. PolySlicer works tested and works with 3dsMax 2012 and all upper 3dsmax versions. But it is always better to use this plugin in the newest 3dsmax version you have access. PolySlicer doesn't create any data for a cnc machine. It only generates a model for cgi.
PolyDesign3D PolyDamage 1.52 for 3Ds Max 2016-2023
http://www.cgtrader.com/3d-models/scripts-plugins/modelling/polydamage-for-3dsmax
PolyDamage plugin is a tool to quickly add damage and imperfections to models. Nothing is perfect in real life, so adding damage to your models make them look more realistic. PolyDamage is a quick alternative to manually sculpting damage with other software packages. PolyDamage adds an extra realism to concrete walls, grounds, stones, columns. PolyDamage quickly adds damage to corners and edges. Since it is procedural, you can make millions of damage variations of one single object. You can save the seed value of damage and next time you can get the same result with this seed value. You can adjust the parameters and adjust the depth of damage, or edge damage amount. Adjust the resolution slider to increase the level of detail in damaged areas. PolyDetail gives a unique material ID for damaged faces so you can apply a spesific damage material to only damaged faces.

https://www.cg-source.com/floorgenerator.php
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.

https://www.cgtrader.com/3d-models/scripts-plugins/modelling/polysnow-plus-for-3dsmax
PolySnow Plus
- PolySnow Plus is a C++ based & multithreaded 3dsMax plugin that creates realistic snow with a click.
- It includes 5 custom objects and 6 modifiers specificly designed for snow creation workflow.
- A variety of parameters lets you get the desired results in every situation.Make your 3d assets'
- winter versions with a click
- Easy to use

https://www.modelplusmodel.com/plugins/redeform.html
ReDeform is a unique 3ds Max plugin for dynamic resizing and rescaling objects in real world units.
Visuali Studio - Auto Pivot Script for 3dsmax
https://visualiarchviz.gumroad.com/l/autopivot?recommended_by=library
AutoPivot includes two 3ds Max scripts that move the object's pivot to its center and lowest point. AutoPivot don't use selection brackets to determine the position but it calculates the center of mass giving you to a more user-friendly position.

SiNi Software is a developer of Autodesk® 3ds Max® plugins that minimise your time doing the tedious and boring stuff allowing you to focus on the creative work you enjoy.
These plugins allow you to optimise and repair 3D models, automate the setup HDRI lighting, relink projects, asset management library, MAXScript loader, SiNiScript, spline tools and much more. The latest tools to be released soon is Preflight, a 3D model checklist to run through before exporting to Unreal Studio, and, AMI, our asset management interface which will file and load assets from a managed database.


https://gumroad.com/l/XOPH
The Material Texture Loader is a 3ds Max script, designed to quickly load in textures, create a material and apply that to your scene. It works both with PBR, Specular and Metalic workflows, but it can be used for any type of texture that needs to be loaded as part of a material.

V-ray is a powerful rendering engine in the field of 3D modeling from the powerful company Chaos Group. In fact, all your modeling efforts, whether in the field of animation, architecture, games, filmmaking, etc., should be rendered as a final product and reach the customer, and it is the rendering engine that has the final say. For example, in 3D Studio Max, you created a 3D model and defined light sources, different textures, and so on. When you start rendering this model, a large amount of data and information enters the rendering engine and the rendering engine It also produces its final output using its own algorithms and precise calculations.

SmartRefs is a new advanced external reference plugin for Autodesk 3ds max. With this tool you can Reference external files but having the ability to modify and animate the objects from that reference, in a similar way of the references of Autodesk Maya, but even more advanced.


https://www.cgtrader.com/3d-models/scripts-plugins/modelling/polysnow-plus-for-3dsmax
PolySnow Plus
- PolySnow Plus is a C++ based & multithreaded 3dsMax plugin that creates realistic snow with a click.
- It includes 5 custom objects and 6 modifiers specificly designed for snow creation workflow.
- A variety of parameters lets you get the desired results in every situation.Make your 3d assets'
- winter versions with a click
- Easy to use