vtf topic
uSource
uSource is a plugin for importing MDL / BSP / VMT / VTF and etc... resources to Unity!
VTFLib
VTFLib is a LGPL open source programming library that provides a C and C++ API for reading and writing Valve VTF and VMT format image files.
source-engine-model-loader
Three.js loader for parsing Valve's Source Engine models
sledge-formats
C# parsers and formats for Half-Life 1 and related engines.
Source2Roblox
A toolset that can 100% automatically port Source Engine levels into clumps of Roblox assets and models.
plumber_core
A Rust library for converting Source Engine VMF maps into a generic 3D format.
blender-vmt
Tools for importing Source Engine material (.vmt) files into Blender
portal2-sdk13
Portal 2 assets converted to use in Source SDK 2013
TF2Ls-for-Unity
Editor tools that streamline use of Valve assets in Unity