Half-Life High Definition Pack

|image=FileHD pack characters.jpg|250px
|name=''Half-Life High Definition Pack''
|developer=Gearbox Software
|date=*June 12, 2001 (WON, with ''Blue Shift'')
*August 30, 2005 (Steam)http//store.steampowered.com/news/438 Steam Client Update Available on Official Steam website (August 30, 2005)
|platform=WikipediaMicrosoft Windows|Windows, WikipediamacOS|macOS, WikipediaLinux|Linux
|distribution=WikipediaSteam (software)|Steam
|series= ''Half-Life''
|designer=Stephen Bahl (all weapons and HECU models)http//www.valvetime.net/threads/marc-laidlaw-vault.114535/page-5 Stephen Bahl as quoted on ''Marc Laidlaw Vault'' on the ValveTime.net Forums
The '''''Half-Life High Definition Pack''''', also simply known as the '''''HD Pack''''', is a content pack consisting of new and upgraded material for games in the Half-Life and Portal universe|''Half-Life'' series. It was created by Gearbox Software and originally included with the PC release of ''Half-Life Blue Shift''. It includes content for the original ''Half-Life'', ''Half-Life Opposing Force|Opposing Force'', and ''Blue Shift''.

FileZombie HD.jpg|200px|thumb|left|A High Definition Zombie.

The improvements coming from the ''High Definition Pack'' mainly stem from the increased polygon count over the default ''Half-Life'' models. However, despite the increased level of detail, the style of some of the models, most noticeably the Hazardous Environment Combat Unit|HECU Marines, have been changed. Consequently, while the models are improved in terms of the level of detail, it remains a matter of opinion as to whether they look better.

The upgraded character models in the ''High Definition Pack'' included the scientists, security guards, and HECU soldiers, as well as several of the Xen creatures. In addition, all of the weapon models were upgraded as well. This included some notable changes to the game's original arsenal. The 9mm Pistol, originally based on a Glock 17, was replaced with a Beretta M9, and the Submachine Gun (Half-Life)|Submachine Gun was replaced with an M4A1 carbine.{{IA|20011202100154/http//gamespot.com/gamespot/stories/previews/0,10869,2811529,00.html|''Half-Life'' Updated Preview|GameSpot (September 10, 2001)}} To reflect some of the weapon changes with the high definition models, new sounds were given to the shotgun and assault rifle, as well as new sprites for the game's HUD.

The ''High Definition Pack'' spawned from the canceled Half-Life (Dreamcast port)|Dreamcast version of ''Half-Life'', in which ''Blue Shift'' was included as a bonus addition to the game. The Dreamcast port boasted improved graphical content, and these models were eventually carried over to the PC after the game's cancellation. However, they were evidently not directly converted as the models that appeared in the Dreamcast port appear to be earlier versions of what would finally comprise the ''High Definition Pack''. The leaked version of the DC game included models that possessed some very noticeable differences from the finished high definition models, and even had some improved models not made part of the ''High Definition Pack'' at all. Earlier preview shots of the Dreamcast version shows yet even older incarnations of some of the high definition models.

===PlayStation 2===
The PlayStation 2 version of ''Half-Life'' saw even further improved models to the game, also created by Gearbox. This included full facial animation and individually-animated fingers. As such, they're considered a continuation of the ''High Definition Pack''. The PlayStation 2 port took advantage of a "Level of Detail" system, allowing these very detailed models up close without sacrificing performance. They were never officially released for the PC version of the game.

===Steam release===
On August 25, 2005, the ''High Definition Pack'' was made available for free through Steam by Valve. However, Valve was criticized for not using the fixed version of the models, which were already available in Gearbox's patch for ''Blue Shift''.{{IA|20061022174344/http//planethalflife.gamespy.com/fullstory.php?id{{=}}105708|PHL High-Definition Pack for Steam|Planet Half-Life (August 30, 2006)}} These patched models re-included animations missing from the high definition models that, although did not appear in any of the official games, were commonly used in custom levels and modifications. Without these patched models, many modifications act erratically, as the missing animations can interrupt scripted sequences, possibly preventing the player from continuing or even crashing the game. Many also complained at how the ''High Definition Pack'' was implemented in the program. When enabled, Steam automatically disables the use of any other custom content. On January 24, 2013, when macOS and Linux support was added to ''Half-Life'', the ''High Definition Pack'' became mandatory. On February 1, 2013, a command line flag "-nohdmodels" allowing to disable the ''High Definition Pack'' was announced.http//github.com/ValveSoftware/steam-for-linux/issues/891 HD Pack enabled by default on ''Half-Life 1'' on GitHub (January 30, 2013) Later, it was made switchable in the game video options.


FileBarney.png|Security guard.
FileBarney hd.png|High Definition version.
FileHlbs pistol.png|9mm Pistol (Half-Life)|9mm Pistol.
FileHlbs pistol hd.png|High Definition version.
Hl_soldier_01.png|HECU Marine.
FileBs soldier 01.png|High Definition version.


{| class="infoboxtable hidable-content" cellspacing="0" cellpadding="4" style="border-width 0px" |- {{#if{{{image|}}}|{{!}}- {{!}} class="infoboximage" colspan="2" style="background " {{!}} File{{{image|}}}{{!}}{{#if{{{imagesize|}}}|{{{imagesize|}}}px|250px}} {{!}}- |}} {{#if{{{image2|}}}|{{!}}- {{!}} class="infoboximage" colspan="2" style="background " {{!}} File{{{image2|}}}{{!}}{{#if{{{imagesize|}}}|{{{imagesize|}}}px|250px}} {{!}}- |}} ! class="infoboxheading" colspan="2" style="{{ }}; {{{css|}}}" | ''{{{{{{2|name}}}}}}'' {{#if{{{hidei|}}}|{{!}}-|{{!}}- |}}{{#if{{{designer|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Designer(s) {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{designer|}}} {{!}}- |}}{{#if{{{game|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Game(s) {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{game|}}} {{!}}- |}}{{#if{{{mode|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Game mode(s) {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{mode|}}} {{!}}- |}}{{#if{{{powerup|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Power-Up spawns {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{powerup|}}} {{!}}- |}}{{#if{{{map|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Filename(s) {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{map|}}} {{!}}- |}}{{#if{{{alternate|}}}| {{!}}- {{!}} class="infoboxlabel" style="{{#if{{{3|}}}|background #{{{3}}}|}}" {{!}} Alternate name(s) {{!}} class="infoboxcell" style="{{#if{{{3|}}}|background #{{{3}}}|}}; {{{css|}}}" {{!}} {{{alternate|}}} {{!}}- |}} |} {{#if{{{1|}}}|{{rb|#{{{1}}}}}|{{rb|}}}}
==Usage instructions== Copy and paste the following code into the top of the article, filling the appropriate fields. Omitted or blank fields will not be shown on the article page.

CategoryInfoboxes CategoryGames
{|class="toc navtemp"
!style="background-color" colspan="2"|CategoryGames|Games, software, and related subjects
|class="navtempsec"|Half-Life and Portal universe|''Half-Life'' game series
|style="width100%; class="navcontents"|''Half-Life'' (''Half-Life (multiplayer)|multiplayer'') · ''Half-Life Opposing Force'' (''Half-Life (multiplayer) Opposing Force|multiplayer'' · ''Half-Life Opposing Force Capture The Flag|Capture The Flag'') · ''Half-Life Blue Shift'' · ''Half-Life Decay''
''Half-Life 2'' · ''Half-Life 2 Episode One'' · ''Half-Life 2 Episode Two'' · Future of the Half-Life series|Future of the ''Half-Life'' series |- |class="navtempsec"|Half-Life and Portal universe|''Portal'' game series |''Portal'' · ''Portal 2'' · ''Peer Review'' · ''Perpetual Testing Initiative'' |- |class="navtempsec"|CategoryDemos|Demos |''Half-Life Day One'' · ''Half-Life Uplink'' · ''Portal First Slice'' |- |class="navtempsec"|CategoryPorts|Ports |Half-Life ports|''Half-Life'' ports (Half-Life (Dreamcast port)|Dreamcast · Half-Life (PlayStation 2 port)|PlayStation 2 · ''Half-Life Source'' · ''Half-Life Deathmatch Source'') · ''Portal Still Alive'' |- |class="navtempsec"|CategoryTechnology demos|Technology demos |Directed Design Experiments · ''Get Your Free TVs!'' · Half-Life Alpha|''Half-Life'' Alpha · Half-Life demonstrations|''Half-Life'' demonstrations · Half-Life 2 demonstrations|''Half-Life 2'' demonstrations · ''Half-Life 2 Lost Coast'' · Polyrobo · Probe Droid · ''Aperture Robot Repair'' · Source Particle Benchmark · ''The Lab'' |- |class="navtempsec"|CategoryCancelled games|Cancelled games |''Half-Life Hostile Takeover'' · ''Prospero'' · ''Return to Ravenholm'' · Unannounced Half-Life project|Unannounced ''Half-Life'' project · Warren Spector's Half-Life 2 episode|Warren Spector's ''Half-Life 2'' episode |- |class="navtempsec"|Other official games |''Deathmatch Classic'' · ''Half-Life 2 Deathmatch'' · ''Half-Life 2 Survivor'' · ''Lego Dimensions'' · ''Portal Pinball'' · Portal 2 Sixense MotionPack DLC|''Portal 2 Sixense MotionPack'' DLC · ''Portal The Uncooperative Cake Acquisition Game'' |- |class="navtempsec"|CategoryCompilations|Compilations |''Half-Life Further Data'' · ''Half-Life Generation'' · ''Half-Life Initial Encounter'' · ''The Orange Box'' |- |class="navtempsec"|CategoryARGs|ARGs |Half-Life 2 ARG|''Half-Life 2'' ARG · Portal ARG|''Portal'' ARG · PotatoFoolsDay ARG|''PotatoFoolsDay'' ARG |- |class="navtempsec"|CategoryThird-party games|Third-party games |''Black Mesa (video game)|Black Mesa'' (Black Mesa (video game)/Achievements|Achievements · Black Mesa (video game)/Soundtrack|Soundtrack) · ''Codename Gordon'' · ''Garry's Mod'' · ''Lamarr Goes to the Zoo'' · Mods · ''Narbacular Drop'' · ''Portal The Flash Version'' · ''Sven Co-op'' · ''Tag The Power of Paint'' |- |class="navtempsec"|CategoryGame engines|Game engines |GoldSrc · Source |- |class="navtempsec"|CategoryModding software|Modding software |Half-Life SDK|''Half-Life'' SDK · ''Perpetual Testing Initiative'' · Source SDK · Valve Hammer Editor |- |- |class="navtempsec"|CategoryAchievements|Achievements |''The Orange Box Achievements|The Orange Box'' · ''Portal Still Alive Still Alive'' · ''Portal 2 Achievements and Trophies|Portal 2'' |- |class="navtempsec"|Miscellaneous |Vortigaunt (player character)|Alien Mode · Censored versions of Half-Life|Censored versions of ''Half-Life'' · Developer commentary · Development of Half-Life 2|Development of ''Half-Life 2'' · Easter eggs · ''Half-Life High Definition Pack|High Definition Pack'' · ''Half-Life Preliminary Findings|Preliminary Findings'' · CategoryMultiplayer|Multiplayer · CategoryMusic|Music · List of pop culture references in Half-Life|Pop culture references · Super 8 Interactive Teaser|''Super 8'' Interactive Teaser |- |} CategoryNavigation templates CategoryGames