View source for Id Tech 5

{{Lowercase}}
{{Short description|Video game engine}}
{{Infobox video game engine
| name = id Tech 5
| logo = IdTech5 Logo.svg
| screenshot = 
| caption = 
| collapsible = 
| author = [[John Carmack]]
| developer = [[id Software]]
| replaces = [[id Tech 4]]
| replaced_by = [[id Tech 6]]
| latest release version = 
| latest release date = 
| repo = 
| tools = 
| programming language = [[C++]], [[AMPL]], [[Clipper (programming language)|Clipper]], [[Python (programming language)|Python]] (AI)
| platform = [[iOS]], [[Microsoft Windows]], [[macOS|OS X]], [[PlayStation 3]], [[PlayStation 4]], [[Xbox 360]], [[Xbox One]]
| license = [[Proprietary software|Proprietary]]
| website = {{URL|idsoftware.com}}
}}

'''id Tech 5''' is a [[proprietary software|proprietary]] [[game engine]] developed by [[id Software]]. It followed its predecessors, [[id Tech 1]], [[id Tech 2|2]], [[id Tech 3|3]] and [[id Tech 4|4]], all of which had subsequently been published under the [[GNU General Public License]]. It was seen as a major advancement over [[id Tech 4]]. The engine was first demonstrated at the [[WWDC]] 2007 by [[John D. Carmack]] on an eight-core computer; however, the demo used only a single core with single-threaded [[OpenGL]] implementation running on a 512&nbsp;MB 7000 class [[Nvidia Quadro|Quadro]] video card.<ref name="http://www.Gaminggroove.com posting">{{Cite web|website=Gaminggroove.com|title=Cain's Carmack Quickie|url=http://www.gaminggroove.com/newsitem.php?id=9045|url-status=dead|archive-url=https://web.archive.org/web/20070927200638/http://www.gaminggroove.com/newsitem.php?id=9045|archive-date=2007-09-27}}</ref> id Tech 5 was first used in the video game ''[[Rage (video game)|Rage]]'', followed by ''[[Wolfenstein: The New Order]]'', ''[[The Evil Within]]'' and ''[[Wolfenstein: The Old Blood]]''. It was followed up by [[id Tech 6]].

==Features==
The initial demonstration of the engine featured 20&nbsp;GB of texture data (using a more advanced [[MegaTexture]] approach called ''Virtual Texturing'',<ref>{{Cite web|title=From Texture Virtualization to Massive Parallelization|url=http://s09.idav.ucdavis.edu/talks/05-JP_id_Tech_5_Challenges.pdf|publisher=[[Id Software]]|date=August 2009|access-date=2009-07-07|archive-url=https://web.archive.org/web/20091007031619/http://s09.idav.ucdavis.edu/talks/05-JP_id_Tech_5_Challenges.pdf|archive-date=2009-10-07|url-status=dead}}</ref> which supports textures with resolutions up to 128,000 × 128,000 pixels), and a completely dynamic and changeable world. This technique allows the engine to automatically stream textures into memory as needed, meaning that developers need not concern themselves with memory restraints or texture limits. This has the advantage of simplifying the creation of content, by eliminating the need to adapt content for different platforms. The engine automatically optimizes resources for cross-platform development, making it possible to render the same models on different platforms, while creating them for only one platform, further simplifying cross-platform development.<ref name="Gamespot.com">{{Cite web|last=Yu|first=James|title=E3 Q&A: id's Nix on Tech 5 Engine licensing|url=http://www.gamespot.com/news/6175061.html|publisher=GameSpot|access-date=2007-07-15}}</ref>

One of the visually evident features the renderer included is a [[penumbra]] in the shadowing (soft edges), by using [[shadow map]]s. In contrast, id Tech 4, which featured volume-based shadows, had very sharply defined shadows. Numerous other advanced graphical effects such as various materials for lighting, [[high-dynamic-range rendering]]-centric effects, bloom, [[crepuscular rays]] ([[volumetric lighting]]), [[Radiosity (3D computer graphics)|radiosity]],<ref>{{Cite web|url=https://www.youtube.com/watch?v=hDI52v1ZUSQ|title=RAGE 60fps demo on iPhone 4 by John Carmack|website=[[YouTube]] |date=August 2010|access-date=2011-05-18}}{{cbignore}}{{Dead Youtube links|date=February 2022}}</ref> soft particles, pixel shader effects, [[alpha to coverage]], post processing, Screen Space Reflection, dynamic water surfaces, procedural animation, [[cloth simulation]], [[depth of field]], and [[motion blur]], are contained. [[Multi-threaded]] processing on the CPU is done for many of its tasks, including rendering, game logic, AI, physics, and sound processing.

The engine comes with a content-creation tools package called id Studio, which is supposed to be much more user-friendly and polished than in earlier versions. Previously, content creation required artists to run various command-line tools beyond the level editor's own tools, while id Tech 5 allows for all work to be done 'in-engine'.

While id Software will be using the engine solely for creating shooter games, the engine also has the capability to operate outside of this genre. Steve Nix from id Software stated that "Not only do we think people can make games outside the action-shooter space with our technology, we encourage it. We'd actually like to see those games made."<ref name="Gamespot.com"/>

==Marketing and licensing==
The engine was first publicly shown during the 2007 Apple Worldwide Developers Conference keynote address, then was later shown privately to an audience of potential licensees at [[Electronic Entertainment Expo|E3]] 2007. The first public demonstration focusing exclusively on the engine took place at [[QuakeCon]] in the same year<ref name="ING interview with Tim Willits">{{Cite web|last=Adams|first=Dan|publisher=IGN|title=E3 2007: id Into the Future|url=http://pc.ign.com/articles/804/804112p2.html|archive-url=https://web.archive.org/web/20070818091533/http://pc.ign.com/articles/804/804112p2.html|url-status=dead|archive-date=August 18, 2007|access-date=2007-07-14}}</ref> during the annual keynote held by John Carmack.

An interview with John Carmack, the lead graphics engine developer at id (at the time), indicated that like its predecessors, id Tech 5 would eventually be released as [[open-source software|open-source]]. The move to open source would likely come many years after id Tech 5's release as a proprietary engine. At [[QuakeCon]] 2007, Carmack told [[LinuxGames]] that he would integrate as little proprietary software as possible into id Tech 5, as "eventually id Tech 5 is going to be open source also. This is still the law of the land at id, that the policy is that we’re not going to integrate stuff that’s going to make it impossible for us to do an eventual open source release."<ref name=linuxgames_ref>{{Cite web|url=http://www.linuxgames.com/archives/9374|title=LinuxGames - Embrace your inner penguin<!-- Bot generated title -->|url-status=dead|archive-url=https://web.archive.org/web/20081003111457/http://www.linuxgames.com/archives/9374|archive-date=2008-10-03}}</ref> Carmack resigned from id in 2013, and no source code release followed the launch of [[id Tech 6]] in 2016.

At [[QuakeCon]] 2010, id CEO [[Todd Hollenshead]] announced that while id Tech 5 could be shared with internal [[ZeniMax Media]] developers, the engine will not be available for external licensing.<ref>{{Cite web|last=Graft|first=Kris|title=id Tech 5 Rage Engine No Longer Up For External Licensing|url=https://www.gamedeveloper.com/programming/id-tech-5-i-rage-i-engine-no-longer-up-for-external-licensing|publisher=Gamasutra|access-date=August 12, 2018}}</ref> On November 10, 2010 it was announced that the first ZeniMax internal developer to work with the engine would be [[MachineGames]].

==Void and Stem engines==
During the development of ''[[Dishonored 2]]'', [[Arkane Studios]] rewrote majority of the id Tech 5 for purposes required for the development of the game.<ref>{{cite web |title=Void engine allows Arkane to push the boundaries in every corner |url=http://www.gameplanet.co.nz/pc/features/g57bd06ce9b1e3/Art-director-Sebastien-Mitton-on-Dishonored-2s-supernatural-systems/ |website=[[Gameplanet]] |publisher=[[Mighty Ape]] |access-date=13 July 2024 |archiveurl=https://web.archive.org/web/20160825191313/http://www.gameplanet.co.nz/pc/features/g57bd06ce9b1e3/Art-director-Sebastien-Mitton-on-Dishonored-2s-supernatural-systems/ |archivedate=25 August 2016 |quote=It is based on the Id Tech 5 engine, but we kept like 20 percent of the engine and we did the AI stuff. |url-status=dead}}</ref> The new version of the engine was named "Void" engine. Arkane removed unneeded elements from the engine like the mini open world and overhauled the graphics. The new engine is intended to improve in-game lighting and post-processing to help the game's visuals, and allows the game to visualize [[subsurface scattering]].<ref>{{cite web | url=https://www.vg247.com/harvey-smith-wants-dishonored-to-become-a-pen-and-paper-rpg | title=Harvey Smith wants Dishonored to become a pen and paper RPG | date=21 June 2016 }}</ref> The same engine was used in a standalone expansion pack ''[[Dishonored: Death of the Outsider]]''. Arkane later made their 2021 game ''[[Deathloop]]'' also using the upgraded Void engine.<ref>{{cite web | url = https://www.pcgamesn.com/deathloop/mixed-steam-reviews-performance-issues-stuttering | title = Arkane is investigating Deathloop's performance issues "as a priority" | first = Phil | last =Hayton | date = 15 September 2021 | accessdate = 23 September 2021 | work = [[PCGamesN]]}}</ref>

During the development of ''[[The Evil Within]]'', [[Tango Gameworks]] has also made heavy changes to the id Tech 5 engine for their own game.<ref>{{cite web | url=https://www.polygon.com/a/e3-2014/the-evil-within | title=The Evil within &#124; Polygon E3 2014 | website=[[Polygon (website)|Polygon]] }}</ref><ref>{{cite web | url=https://www.ign.com/articles/2013/04/22/the-evil-within-first-look | title=The Evil Within -- First Look |author=Lucy O'Brien |website=[[IGN]] | date=23 April 2013 }}</ref> During the development of ''[[The Evil Within 2]]'' further changes were made; the new version of the engine was named the "Stem" engine.<ref>{{cite web | url=https://www.relyonhorror.com/latest-news/evil-within-2-powered-modified-idtech-stem-engine/ | title=The Evil within 2 Powered by Modified idTech: STEM Engine | date=23 September 2017 }}</ref><ref>{{cite web | url=https://www.dsogaming.com/news/the-evil-within-2-will-be-powered-by-the-stem-engine-custom-built-engine-based-on-idtech/ | title=The Evil within 2 will be powered by the STEM Engine; custom-built engine based on idTech | date=24 September 2017 }}</ref>

==Games using id Tech 5==
{|class="wikitable"
! Year !! Title !! Developer
|-
| 2010 || ''[[Rage: Mutant Bash TV]]''<ref>{{cite web |last1=Schramm |first1=Mike |title=Rage: Mutant Bash TV brings id Tech 5 to iOS |url=https://www.engadget.com/2010-11-15-rage-mutant-bash-tv-brings-id-tech-5-to-ios.html |website=[[Engadget]] |publisher=[[Yahoo! Inc. (2017–present)|Yahoo! Inc.]] |access-date=13 July 2024 |date=16 November 2010}}</ref> || [[id Software]]
|-
| 2011 || ''[[Rage (video game)|Rage]]'' || id Software
|-
| rowspan="2" | 2014 || ''[[Wolfenstein: The New Order]]'' || [[MachineGames]]
|-
| ''[[The Evil Within]]'' || [[Tango Gameworks]]
|-
| 2015 || ''[[Wolfenstein: The Old Blood]]'' || MachineGames
|-
| 2017 || ''[[The Evil Within 2]]'' || Tango Gameworks
|}

==See also==
*[[First-person shooter engine]]
*[[List of game engines]]

==References==
{{Reflist|30em}}

==External links==
*{{webarchive |url=https://web.archive.org/web/20090302004253/http://www.idsoftware.com/business/idtech5/ |date=March 2, 2009 |title=Official id Tech 5 licensing page }}
*{{webarchive |url=https://web.archive.org/web/20071118184025/http://www.idsoftware.com/business/press/index.php?date=20070611000000 |date=November 18, 2007 |title=id Tech 5 press release }}
*[https://web.archive.org/web/20091007031619/http://s09.idav.ucdavis.edu/talks/05-JP_id_Tech_5_Challenges.pdf From Texture Virtualization to Massive Parallelization] ([[SIGGRAPH]] 2009)
*[http://ttimo.typepad.com/blog/2009/09/id-software-and-linux.html Timothee Besset's Blog post on possible porting to Linux]

===Media===
*{{YouTube|HvuTtrkVtns|John Carmack demonstrates id Tech 5 at WWDC 2007}}

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{{Id Software}}
{{Video game engines |state=autocollapse}}

[[Category:2010 software]]
[[Category:3D graphics software]]
[[Category:Global illumination software]]
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