Collision Hulls
Use Wall Worm to quickly build convex collision hulls for your model.
Advanced Texture Controls
With Wall Worm Pro, you can export arbitrary texture maps as VTF files in Source.
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.
Studiomdl.exe and Vtex.exe - Unable to find gameinfo.txt
This error usually indicates Steam did an update or you are working with a mod that doesn't use the Steam VProject setting. Read the fix here.
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.
Prop Data and Custom Gibs
Explanation of the Prop Data and Custom Gibs rollout in Wall Worm Model Tools.
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.
Rad Topics
Articles related to making and using radiosity in your levels.
My Material is always Transparent but I don't want it to be
Information on outputting the desired alpha settings for your materials.