Portal 2 engine branch: Difference between revisions
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Note:
Counter-Strike: Global Offensive used to be on the branch that debuted with it, but as of 
Counter-Strike 2's official release, which upgraded the game to Source 2 with a different name, this makes Portal 2 as the latest Source 1 branch available that still receiving major updates, partly.
However CS:GO branch will be remain maintained with security and bug fixes for third-party games after support for CS:GO is discontinued in Jan 1, 2024.
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* {{Code|2013}} {{tsp|4}} | * {{Code|2013}} {{tsp|4}} | ||
* {{Code|2015}} {{tbg|4}} | * {{Code|2015}} {{tbg|4}} | ||
** Based of {{tsp|2}} engine. | |||
A third-party, heavily modified version of this engine used for {{titanfall|3.1}} & other games by Respawn Entertainment, called the {{tfbranch|4}}, is also available, and it is used on the following games: | A third-party, heavily modified version of this engine used for {{titanfall|3.1}} & other games by Respawn Entertainment, called the {{tfbranch|4}}, is also available, and it is used on the following games: | ||
Revision as of 23:08, 19 October 2023
The 
Portal 2 engine branch was introduced with Portal 2 in 2011. It succeeded the 
Alien Swarm engine branch and was superseded by the CS:GO engine branch.
Note: Counter-Strike: Global Offensive used to be on the branch that debuted with it, but as of Counter-Strike 2's official release, which upgraded the game to Source 2 with a different name, this makes Portal 2 as the latest Source 1 branch available that still receiving major updates, partly.However CS:GO branch will be remain maintained with security and bug fixes for third-party games after support for CS:GO is discontinued in Jan 1, 2024.
Features
New since the Alien Swarm engine branch is:
- Improved shadow mapping
- The entity env_projectedtexture is significantly improved. Compared to previous implementations, it has higher default resolution, better edge filtering and support for the caching of shadows from static objects.
- Video playback on materials
- Added support to render Bink Video in-game on surfaces.
- Blob particles
- A particle renderer that renders blobs of liquid, used for paint gel in Portal 2.
- World portals
- World portals that can seamlessly link together seperate parts of the world. This feature is exclusive to this engine branch.
- Sound operators
- For defining complex audio behaviour.
- Finished water debris flow
- The base texture water flow feature from the Alien Swarm engine branch has been finished, with flowed normals now distorting color lookup and the flow map's alpha channel controlling color map opacity.
- Official
PS3 Support - Of little use to modders, needless to say! PS3 is now officially supported by Valve, thanks to this, most of the Source games runs on PS3 can be properly optimized and runs properly unlike the PS3 port of
The Orange Box which was developed by EA, ended up suffered from occasional frame drops and other technical issues.
Availability
2014Blade Symphony[confirm]2014Consortium (delisted)2011 Portal 2
2012
Portal 2 Sixense Perceptual Pack (delisted)2021
Portal Reloaded2015
Portal Stories: Mel
TBA
PUNT2011
Dino D-Day - Previously running on the 
Left 4 Dead engine branch.2016
INFRA2013
Tactical Intervention (delisted)2013
The Stanley Parable2015
The Beginner's Guide
- Based of The Stanley Parable engine.
- Based of
A third-party, heavily modified version of this engine used for Titanfall & other games by Respawn Entertainment, called the 
Titanfall branch, is also available, and it is used on the following games:
2014 Titanfall (delisted)2016
Titanfall 22019
Apex Legends
Source code for both branches is not available. However, authoring tools exist for custom content.