Transparency and Reflections
Tutorial and example scene on making a material that has reflectivity that matches the transparency in 3ds Max.
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.
Displacement edge abutting other edges
Help understanding the VBSP compile warning about displacement edge abutting other edges.
Lighting Rollout
This rollout contains lighting controls and other miscellaneous controls that are either rarely used or are experimental.
Making Facial Animations
This page explains how to export your facial animations into Source. Facial animations are done using a different procedure than most animations in Source.
The Grid and Manipulation
Documents on the grid and related topics.
PBR Material Support
PBR Material support in Wall Worm.