Need some help with Wall Worm tools or building assets for Source? Use the categories below to find answers. If you cannot find an answer, please consider using the WW forums; please only contact WW directly as a last resort--as far too often the time spent answering emails deals with subjects already covered on this site and the forums.
All you need to know about getting your model scale correct.
Many new 3ds Max users have problems with the scale of their exported models not matching the scale in the Max UI. Here are some tips on solving that.
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.
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.