Rotating Textures
Instructions on creating VMTs that animate the texture rotation.
Some PSDs can crash VTEX
PSD files created with Viewport Canvas must be converted
PSD files created with Viewport Canvas can sometimes crash VTEX.
Studiomdl.exe - Model has 2-dimensional geometry
Relates also to: Error with convex elements of Mesh
This error is usually caused by models having a $concave flag that do not have proper collision hulls.
Alpha Spec
This utility is a helper function to convert your Specular Level bitmap into the Alpha channel of another bitmap.
Rad Topics
Articles related to making and using radiosity in your levels.
OSL: Multi Gradient
The Multi Gradient OSL map has several gradient masking options.
BSP Topics
Basic discussion of BSP, VBSP and compiling topics.
Collision Hulls
Use Wall Worm to quickly build convex collision hulls for your model.
WWMT Tutorials
Tutorials and videos on using Wall Worm tools.