Editing BioShock (section)

===Game engine===
''BioShock'' uses a heavily modified [[Unreal Engine 2|Unreal Engine 2.5]] with some of the advanced technologies from [[Unreal Engine 3]].<ref name=engine /> Irrational had previous experience with modifying and expanding on the Unreal Engine in ''[[SWAT 4]]'', and continued this advancement of the engine within ''BioShock''. One significant improvement they added was improved water effects, given the nature of the game's setting, hiring a programmer and artist to focus on the water effects.<ref>{{cite web | url=http://360.advancedmn.com/article.php?artid=7461&pg=3 | archive-url=https://web.archive.org/web/20071011171901/http://360.advancedmn.com/article.php?artid=7461&pg=3 | archive-date=October 11, 2007| title=E3 06: ''BioShock'' Interview Transcript | date=May 18, 2006|access-date = May 18, 2007 | publisher = Advanced Media Network | first = Eric | last = Topf}}</ref> This graphical enhancement has been lauded by critics, with [[GameSpot]] saying: "Whether it's standing water on the floor or sea water rushing in after an explosion, it will blow you away every time you see it."<ref>{{cite web|url=http://www.gamespot.com/xbox360/action/bioshock/review.html |title=''Bioshock'' |date=August 21, 2007 |access-date=August 21, 2007 |first=Jeff |last=Gerstmann |publisher=Gamespot |url-status=live |archive-url=https://web.archive.org/web/20071011093628/http://www.gamespot.com/xbox360/action/bioshock/review.html |archive-date=October 11, 2007 }}</ref> ''BioShock'' also uses the [[Havok Physics]] engine that allows for an enhancement of in-game [[physics]], the integration of [[ragdoll physics]], and allows for more lifelike movement by elements of the environment.<ref name="BioFAQs 2">{{cite web|url=http://www.bioshock-online.com/faq/#engine |title=''BioShock'' FAQs&nbsp;– What engine is ''BioShock'' using? |access-date=October 7, 2007 |date=December 30, 2006 |publisher=Through the Looking Glass |url-status=live |archive-url=https://web.archive.org/web/20071011150416/http://bioshock-online.com/faq/ |archive-date=October 11, 2007 }}</ref> The Windows version was built to work in both [[Direct3D|Direct3D 10 (DirectX 10)]] and DirectX 9, with the DirectX 10 version supporting additional water and particle effects.<ref>{{cite web|url=http://au.gamespot.com/features/6177688/index.html |title=BioShock Hardware Performance Guide |first=Sarju |last=Shah |date=August 26, 2007 |access-date=March 3, 2008 |publisher=Gamespot AU |url-status=dead |archive-url=https://web.archive.org/web/20071026023845/http://au.gamespot.com/features/6177688/index.html |archive-date=October 26, 2007 }}</ref><ref>{{cite web|url=http://www.bit-tech.net/gaming/2007/08/30/bioshock_gameplay_graphics_and_performance/1 |title=BioShock: Graphics & Performance |date=August 30, 2007 |access-date=March 3, 2008 |first=Tim |last=Smalley |publisher=Bit-Tech |url-status=live |archive-url=https://web.archive.org/web/20080216102314/http://www.bit-tech.net/gaming/2007/08/30/bioshock_gameplay_graphics_and_performance/1 |archive-date=February 16, 2008 }}</ref><ref>{{cite web|url=http://www.extremetech.com/computing/77486-bioshock-image-quality-dx9-vs-dx10 |title=''BioShock Image Quality: DX9 Vs. DX10'' |date=August 23, 2007 |publisher=ExtremeTech |url-status=live |archive-url=https://web.archive.org/web/20160308211124/http://www.extremetech.com/computing/77486-bioshock-image-quality-dx9-vs-dx10 |archive-date=March 8, 2016 }}</ref>