SDK Docs

General

• Downloading and Installing the Source SDK
• Source SDK Release Notes
• Source SDK Frequently Asked Questions
• Help Desk
• Developer Console
• Source SDK Files and Directory Structure
• Demo Recording Tools
• Source TV
• Books

Quick Category Navigation
Modding	Creating, organising and releasing your Source project.
Level Design	Maps are the cornerstone of Source, where it all comes together. Learn about all aspects of producing them here.
Choreography	Make Source's characters come to life with its uniquely powerful choreography technologies.
AI	AI controls the behavior of all but the simplest of NPC actions and Source makes using or creating it easy.
Material System	Textures and shaders are combined in Source to create materials.
Sound System	Documentation on Source's software sound system.
Modeling	Everything you need to know about modeling for Source.
VGUI	Valve's proprietary GUI mimics Windows' and works both in-game and on the desktop. Used for HUDs, 3D cameras and more.
Programming	The nuts and bolts of any MOD, programming is what makes things different.
Tutorials	Need help trying to use a particular Source feature? Check here.
Technical	Miscellaneous technical aspects about the Source engine and Half-Life 2 programming.
Glossary	Explanations of common terms.
Third Party Tools	Non-Valve developer tools.

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