Brush Materials have incorrect rotation and scale when using the DirectX Shader
The Wall Worm Material Library Generator originally created DirectX Materials for all materials. But updates to the VMF Exporter changed the way materials are interpretted. Whenever possible, you should not use DirectX Materials.
Blend Materials and WorldVertexTransition
Instructions on creating a WorldVertexTransition material inside 3ds Max using Blend Materials.
Brush Materials and Decals
A beginning to end example of making and exporting brush materials and decals.
A video and sample file to show you how to export textures, brush materials, decals and a simple level from 3ds Max into the Source Game Engine.
Material Library Generator
Explanation of how to use the Material Library Generator.
Displacement Texture Scale Sometimes Incorrect
Understanding Displacement Blend Texture Scale
This page explains one cause for displacement materials to be scaled incorrectly in Source as well as the solution. You should use bitmaps of equal dimensions in both materials controlling the Blend material.
Unknown Bitmap Filetypes Crash VMF Exporter
Do not use bitmap filetypes that Max doesn't know how to read.
Using unknown bitmap types on world geometry and displacements will crash the VMF Exporter. This currently happens if using VTFs in materials in 3ds Max 2013 since there is no VTF plugin yet.
Using Props in Your Scene
Article on re-using existing props in a scene.
Using Legacy CS:GO with Wall Worm
How to revive a project started in CS:GO after the update to Source 2 in Counter-Strike 2.
Instructions on using Wall Worm Projects configured for Counter-Strike: Global Offensive after the release of Counter-Strike 2 on the Source 2 engine.
Using WWMT
Articles on using the Wall Worm Model Tools.