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.
Prop Data & Gibs Rollout
This rollout lets you assign prop_data values to your prop so that it can be used as a prop_physics in Source. YOu can also assign custom Gibs models with this rollout.
Level of Detail (LOD) Generator & Tools Rollout
The Level of Detail Tools Rollout gives you controls for making LOD models and other LOD-related tools.
Grouped Geometry is Not Supported
When exporting grouped models to SMD, the SMD exporter will fail to export your model correctly.
Source Tools
Modeling Resources for the Source Game Engine. Links to helpful tools, sites and resources.
Hull Helper
Hull Helper is a simple UI to speed up making hulls from complex models.