Editing Quake II (section)

====Quake II RTX====
A new source port of the game, titled Quake II RTX, was announced by [[Nvidia]] in March 2019<ref>{{cite web |url=https://www.nvidia.com/en-us/geforce/news/quake-ii-rtx-ray-tracing-vulkan-vkray-geforce-rtx/ |title=Quake II RTX: Re-Engineering a Classic with Ray Tracing Effects on Vulkan |publisher=NVIDIA}}</ref> and was released on June 6 for Windows and [[Linux]] on [[Steam (service)|Steam]]. This source port requires either a Nvidia [[Nvidia RTX|RTX]] or an [[AMD]] [[Radeon RX 6000 series]] [[Graphics processing unit|GPU]] or higher to utilize these cards' hardware [[Ray-tracing (graphics)|ray tracing]] functionality, but a software fallback is available for graphics cards that are fast enough.<ref>{{cite news |last1=Burnes |first1=Andrew |title=Quake II RTX Available On Windows and Linux June 6th |url=https://www.nvidia.com/en-us/geforce/news/quake-ii-rtx-june-6-release-date/ |access-date=June 6, 2019 |publisher=[[Nvidia]] |date=May 27, 2019}}</ref><ref>{{cite web |last1=McWhertor |first1=Michael |title=Quake 2 with ray-tracing support coming June 6, for free |url=https://www.polygon.com/2019/5/27/18641307/quake-2-rtx-ray-tracing-remaster-download-nvidia |access-date=June 6, 2019 |website=[[Polygon (website)|Polygon]] |date=May 27, 2019}}</ref>
The source port, provided free of charge, includes the three levels present in the original ''Quake II'' demo,{{efn|Nvidia calls it [[shareware]] but Quake II was the first id Software game that did not have a shareware release.}} but can be used to play the full game if its data files are available.<ref>{{cite magazine |last1=Lilly |first1=Paul |title=Quake 2 RTX with ray-traced graphics is now available, first 3 levels are free |url=https://www.pcgamer.com/quake-2-rtx-with-ray-traced-graphics-is-now-available-first-3-levels-are-free/ |access-date=June 6, 2019 |magazine=PC Gamer |date=June 6, 2019}}</ref> Unlike in most games, ray tracing is used extensively here for lighting, reflections, etc. This is only possible because of the otherwise low hardware demands of ''Quake II''.