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Team Fortress 2 engine branch

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The Team Fortress 2 branch Team Fortress 2 branch is a newer version of Source 2013 Multiplayer Source 2013 Multiplayer, developed from updates to Team Fortress 2 Team Fortress 2.

The branches have incompatible ABIs, i.e. mods/tools compiled for Source 2013 Multiplayer will not work under Team Fortress 2 without updating interfaces.

Features

New since the Source 2013 Multiplayer Source 2013 Multiplayer branch is:

Swaying trees (also in Garry's Mod Mapbase Left 4 Dead engine branch Alien Swarm engine branch Portal 2 engine branch CS:GO engine branch Strata Source Xengine)
A material parameter that gives the effect of trees swaying in the wind.
64-bit binaries (also in Garry's Mod)
Allows the game to access more than 4GB RAM and have slightly better performance. Additionally, tools such as Hammer, map compilers (VBSP, VVIS, VRAD), etc... also have 64-bit binaries.
Note.pngNote:Team Fortress 2 64-bit is not available on Mac.
Half-Life 2 was the first game to receive 64-bit update back in 2005, when it ran on Source 2004. It was later removed for unknown reasons, but it also had some technical issues at the time.
Half-Life 2: Deathmatch only has 64-bit binaries for the engine DLLs; all executables and game DLLs are still 32-bit.
VScript (also in Mapbase No More Room in Hell Left 4 Dead engine branch Portal 2 engine branch CS:GO engine branch)
A powerful new scripting system primarily using Squirrel Squirrel. Third-party games may have different VScript implementation.
WebM video playback (also in Hunt Down the Freeman Garry's Mod Counter-Strike: Global Offensive Strata Source)
Used for game intros or cutscenes in some games. Replaces Bink video. WebM allows smaller file sizes without significant degradation in video quality.
Vulkan renderer (also in Half-Life 2 Portal Left 4 Dead 2 Portal 2 engine branch CS:GO engine branch Strata Source Xengine)
A low-overhead, cross-platform graphics API, successor to OpenGL.
First introduced in 2022 with Half-Life 2 and Portal, and was add in Team Fortress 2 later during the 64-bit update. Portal with RTX also uses Vulkan as part of the RTX Remix runtime. Using DXVK, a library used to translate Direct3D calls to Vulkan. This is disabled by default, but can be enabled in supported games by passing -vulkan into the game's launch options.
VGUI High DPI support (also in Half-Life 2 20th)
VGUI elements are now properly scalable on higher resolutions such as 4K (3840x2160).
Texture streaming (also in CS:GO engine branchTitanfall branch)
Reduce system RAM and graphics card VRAM usage by streaming textures as needed instead of loading them all when loading the map.
Removal of Miles Sound System middleware
Uses minimp3 for MP3 playback instead.
Numerous security fixes
See GitHub post.

Availability

Game code for this branch is not available.