View source for Portal 2

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{{Infobox game
|title = Portal 2
|image = Software Cover - Portal 2.jpg<!-- reusing the cover previously used with software page cuz why not. -->
|developer = [[Valve Corporation]]
|publisher = Valve Corporation
|series = [[Portal series]]
|releasedates = {{ExpandBox|title=April 18, 2011|'''Windows, macOS (digital):'''<br>April 18, 2011<br>'''Windows, macOS, Xbox 360, PlayStation 3 (retail):'''<br>April 20, 2011<br>'''Linux (beta):'''<br>February 26, 2014<br>'''Nintendo Switch:'''<br>June 28, 2022<!--expand template-->}}
|genre = [[W:Puzzle-platform|Puzzle-platform]]
|mode =  {{w|icon=0|Single-player video game|Single-player}},  {{w|icon=0|Multiplayer video game|multiplayer}}
|platform =  {{w|icon=0|Windows|Windows}}, {{w|icon=0|macOS|macOS}}, {{w|icon=0|Linux|Linux}}, {{360|1}}, {{ps3|1}}, {{switch|1}}
|engine = {{Src|4}} ({{p2branch|1|nt=0}})
|appid = 620
|codelang = {{w|icon=0|C++|C++}}
|modsupport = Yes ([[Steam Workshop]])
|sdk = {{P2tools|1}}
|sysreq = <span></span>
*  {{w|icon=0|Windows 7|Win 7}} or later
* Dual-core {{w|icon=0|Central processing unit|CPU}} (Intel Core 2 Duo, AMD Athlon 64 X2)
* 2 {{w|icon=0|Gigabyte|GB}} RAM
* 15 GB disk space
* 128 MB {{w|icon=0|Video random-access memory|VRAM}} video card, DirectX 9.0 (Shader Model 2.0b) compatible
''For details, [[#System Requirements|see below]]''
|distribution = Retail, [[Steam]]
|website = [https://www.thinkwithportals.com/index.php Official Website]
|links = {{Steam store|app/620|'''Steam''' page}}, {{moddb|games/portal2|'''ModDB''' page}}
|previousgame = {{portal|2}}
|nextgame = N/A
}}
{{portal2|4}} draws from the award-winning formula of innovative gameplay, story, and music that earned the original {{portal|4}} over 70 industry accolades and created a cult following.

The single-player portion of ''Portal 2'' introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the [[Aperture Science]] Labs and be reunited with [[GLaDOS]], the occasionally-murderous computer companion who guided them through the original game.

The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively but also think cooperatively.

{{note|''Portal 2'' grants access to the [[Source SDK]] and [[SDK Base]] games. Its store page does not mention this.}}

== Features ==
{{p2branch|4.1}} introduces:

; Improved [[W:shadow mapping|shadow mapping]]
: The entity {{ent|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.
; [[Vgui_movie_display | Video playback]] on [[material]]s
: Added support to render [[Wikipedia:Bink Video|Bink Video]] in-game on surfaces, used for elevator screens in Portal 2.
; [[render_blobs|Blob particles]]
: A particle renderer that renders blobs of liquid, used for paint gel in Portal 2. A similar blob particles system are originally present in {{src07|1}} or {{src09|1}}, but was disabled in code.
; [[linked_portal_door|World portals]]
: World portals that can seamlessly link together separate parts of the world. This feature is exclusive to this engine branch.
; [[Soundscripts#Operator_stacks|Sound operators]]
: For defining complex audio behaviour.
; [[Water_(shader)#Basetexture_Flow|Finished water debris flow]]
: The base texture water flow feature from the Alien Swarm engine branch has been finished, with [https://steamcdn-a.akamaihd.net/apps/valve/2011/gdc_2011_grimes_nonstandard_textures.pdf#page=23 flowed normals now distorting color lookup and the flow map's alpha channel controlling color map opacity.]

=== PS3 exclusive features ===
; Official {{PS3|1|nt=0}} Support
: When it comes to {{ps3|1|nt=PS3}}, unlike {{tobconsole|1|nt=tob}}, '''{{p2|name}}''' has been properly optimized for the {{ps3|1}} as Valve takes advantages of SPEs cores on the RSX processor in the PS3, allowing for better performance. The PS3 version of Portal 2 (and CS:GO) are also integrated with Steam ([[Steamworks]]). ''Of little use to modders, needless to say.''
; MLAA [[anti-aliasing]]
: Post-processing effect used to reduce stair-step (aliasing) effect on geometry and transparent textures, while having less performance impact compared to [[MSAA]].
; {{steamicon|1}} integration ([[Steamworks]])
: {{ps3|1|4}} version of {{p2|4}} features Steam integration. Achievements are synced with both PSN and Steam, and PS3 users were able to complete co-op levels with Steam friends. Steam services on PS3 have been shut down in May 2018, after support was dropped in 2016.
; PlayStation Move support
: {{p2|1}} on PS3 supports PlayStation Move motion controller.

== Chapters ==
{{Chapters|game=p2}}

== Content ==
* Portal 2 (<code>portal2</code>)
* Peer Review DLC (<code>portal2_dlc1</code>)
* [[Portal 2 Puzzle Maker|PETI DLC]] (<code>portal2_dlc2</code>)
* {{portal2branch|4.1}}

== Gallery ==
<gallery mode="packed" >
Sp colo tbeam paint0241.jpg
Global shadow mapping.jpg
1024 excursionfunnel.jpg
1024 thermaldiscouragement.jpg
Portal2 panels.jpg
Large Emancipation Grid.jpg
overgrown test.jpg
1024 hardlightwall.jpg
Art-therapy-example01.jpg
Wheatley map example.jpg
P2ManuSmall.jpg
Falling-roof-panels.jpg
Triple laser 00.jpeg
</gallery>

== Limitations/Bugs ==
*For the list of '''Portal 2''' bugs, see this [https://github.com/ValveSoftware/portal2/issues GitHub] page.
{{Note|Despite it's said Linux according to README, these bug reports applies to all platforms (except consoles).}}

== System Requirements<span id="Sysreq"><!--Used by Sysreq template, clicking on "See system requirements" will send you to this section.--></span> ==
Last updated: February 14, 2023

{{Sysreq
|OSfamily = Windows

|minOS    = {{Win7|3.1|nt=7|linkto=7}}, {{Win8|3.1|nt=8|linkto=Windows 8}}, {{Win8|3.1|nt=8.1|linkto=Windows 8.1}} (with limitations due to Steam EOS)*<br>{{win10|3.1|nt=10|linkto=10}}, {{win11|3.1|nt=11|linkto=11}}
|minCPU   = Intel Core 2 Duo<br>AMD Athlon 64 X2 (Dual core)<!-- Pentium 4 (official requirement) should not be listed here as the game have been updated over time and may run poorly with that CPU. -->
|minRAM   = 2GB
|minHD    = 15 GB <!-- Based off depot info from SteamDB when filtered to Windows, English, no DLC depots. -->
|minGPU   = {{amd|3.1|nt=AMD}}/{{ati|3.1|nt=ATI}} Radeon X800<br>{{nvidia|3.1}} GeForce 7600<br>Intel HD Graphics 2000<br>128 MB of VRAM<br>DirectX 9.0c compatible with Shader model 2.0b support
|minother = 

|recOS    = 
|recCPU   = 
|recRAM   = 
|recHD    = 
|recGPU   = 
}}

{{note|<small>*</small> - This game previously used to support Windows XP & Vista, however support for Steam for these operating systems has been dropped as of 2019, and with Portal 2 having the Steam API later updated in 2021, thus these operating systems are automatically no longer supported from running Portal 2. Additionally, Windows 7 and 8, 8.1 support for both Portal 2 and Steam has been dropped in 2024, which may cause the game to not launch correctly if the Steam API was updated and made incompatible for these operating systems.}}

== External links ==
* [[Wikipedia:Portal 2]]
* [http://gameinformer.com/mag/portal2.aspx Game Informer Portal 2 Hub]

== See also ==
* {{360}}{{ps3}} [[Portal 2 (Console)|Xbox 360 & PS3 version of Portal 2]]
* {{Portal|4}}
* {{psa|4}}
* {{portal2Sixense|4}}
* {{pcc|4}} ({{Nsw|4.1}} only)
	 {{Portal games}}
{{Portal2 topicon}}{{source topicon}}


[[Category:Source]]