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Half-Life 2 RTX: Difference between revisions

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__NOTOC__
{{todo|Make references instead of direct links}}
{{Software status
| appid = 2477290
| type = games
| os =
| status = release
| note = Demo version only. Featured [[Ravenholm]] and [[Nova Prospekt]].
| 3rdpartylinks =
}}
{{LanguageBar}}
{{hl2 topicon}}{{src topicon}}
{{clr}}
{{Infobox game
|title = Half-Life 2 RTX
|image = Software Cover - Half-Life 2 RTX.jpg
|developer = Orbifold Studios
|publisher = Orbifold Studios
|series = [[Half-Life series]]
|releasedates = March 18, 2025 (Demo)</br>Full version in development
|genre = [[WP:First-person shooter|First-person shooter]]
|mode = [[WP:Single-player video game|Single-player]]
|platform = [[WP:Windows|Windows]]
|engine = {{src|4}} ({{src13sp|1|nt=1}} with {{mapbase|2}})
|appid = 2477290
|codelang = [[WP:C++|C++]]
|modsupport = Yes
|sdk = {{srcsdk|1}}
|sysreq = See [[#System Requirements|System requirements ▼]]
|distribution = [[Steam]]
|website = [https://www.hl2rtx.com/ Official Website]
|links = {{Steam store|app/2477290|Steam page}}
|previousgame =
|nextgame =
}}
{{Stub}}
{{Stub}}
'''Half-Lif 2 RTX''' is the second Nvidia RTX Source remix. It, as the name implies, is a RTX revamp of the original {{hl2|4}}, similar to how {{portal|3.1}} was revamped with {{portalrtx|3.1}}.  
'''{{hl2rtx|4}} - An RTX Remix Project''' is the second {{source|3}} game to be built using {{RTXremix|1}}. It, as the name implies, is a RTX revamp of the original {{hl2|1}}, similar to how {{portal|1}} was revamped with {{portalrtx|3.1}}. Being developed by Orbifold Studios, it aims to revamp the entire game with RTX lighting, PBR textures, etc. This game was also promoted by {{nvidia|1}} via their official YouTube channel.{{Cite|1}}
 
With the release of the first trailer, the [[Dr. Kleiner]]'s lab has been revealed, along with an updated HEV suit and revamped models & props. Plus the floor textures now utilizing ray-tracing reflections. A demo version (featuring [[Ravenholm]] and [[Nova Prospekt]]) was released on March 18, 2025.
 
Half-Life 2 RTX ships with {{srcsdk|1}} tools, along with {{hammerplusplus|2}} and {{slammin|1}}.
 
== Features ==
{{hl2rtx|3.1}} runs on a modified version of {{src13sp|3.1}} (pre-anniversary engine with {{mapbase|2}}) which allows support for DirectX 7 render path, previously deprecated in {{src07|3.1|nt=0}} (also known as {{src07|1}}).
; [[#Ray tracing (graphics)#Interactive ray tracing|Real-time ray tracing]]
: By default, the Source engine only has static bounced lights created during compilation ([[VRAD]]). Half-Life 2 RTX (and all games on RTX Remix) has all static lights replaced with lights that are ray traced and bounced in real-time.
; [[Physically Based Rendering]]
: A approach that creates realistic reactions to light. Many assets (textures, models) have been remade to take advantage of PBR.
; [[DirectX Versions|DirectX 7 render path]], [[Vulkan]], [[Direct3D|Direct3D 12]]
: Half-Life 2 RTX runs on {{code|mat_dxlevel 70}}, then uses DXVK to translate Direct3D 9 (with feature level 7.0) to Vulkan while also replacing the game assets, then output as Direct3D 12 afterward.
; Nvidia DLSS 4.0 (with Frame Generation)
: A upscaling algorithm developed by NVIDIA, which relies on machine learning. With DLSS, the game runs on lower resolution to improve framerate, then use AI to upscale the game to higher resolutions while also enhancing the image by adding temporal anti-aliasing and makes the image sharper. It also comes with DLSS Frame Generation, which generates a frame (and smoothly transition) between two rendered frame. However using DLSS Frame Generation, will add additional input lag, so using NVIDIA Reflex is recommended to reduce system latency.
; Nvidia Reflex
: NVIDIA Reflex aims to reduces system latency, and makes keyboard & mouse movement more responsive.
 
== History and Updates ==
The game was first announced in September 9, 2023, with the first trailer released.
 
In Jan 8, 2024, NVIDIA announces NVIDIA RTX Remix Open Beta, which would allow other {{src|1}} games such as {{gmod|1}}, {{vtmb|1|nt=VTMB}} and many other [[DirectX]] 8 & 9 games to have RTX. On that same announcement, a second [[Ravenholm]] RTX showcase trailer was released in Jan 8, 2024{{cite|2}}.


As of time of writing, only [[Dr. Kleiner]]'s lab has been revealed in the initial trailer, along with an updated HEV suit.
A demo version featuring Ravenholm and Nova Prospekt chapter was released on March 18, 2025.
 
An update was released in April 1, 2025, which added tonemapping to make the image less over-brightened. It also fix crashes and other bugs.
 
== Gallery ==
<gallery mode=nolines heights=192px widths=307px>
File:Screenshot-HL2RTX-Kleiner's_Lab.jpg|A screenshot of {{hl2rtx|4}}, showcasing the ray-traced Kleiner's Lab, from [https://www.nvidia.com/en-us/geforce/news/half-life-2-rtx-remix-in-development/ NVIDIA News page].
</gallery>
 
== System Requirements ==
{| width="90%"
! align=left | '''Minimum:'''
|-
|
* Processor: Intel i5-8600, AMD Ryzen 5 3600
* Graphics: NVIDIA GeForce RTX 3060 Ti
* Memory: 16 GB RAM
* Storage: 50 GB* or more, HDD
* OS: Windows 10/11 or later
* Other: [[Vulkan]], DX12, ray-tracing capable GPU required<br>DLSS highly recommended for weaker/lower-end GPUs, however, this will result in blurrier image.</br>* - Game size: 41.4GB.
|}


==External Links==
==External Links==
*https://www.youtube.com/watch?v=aM_gzfAMdNs&ab_channel=NVIDIAGeForce - Release Trailer
*[https://www.nvidia.com/en-us/geforce/news/half-life-2-rtx-remix-in-development/ Announcing Half-Life 2 RTX, An RTX Remix Project Being Built By The Community - NVIDIA News]
*{{Yt|aM_gzfAMdNs|page=watch|Half-Life 2 RTX, An RTX Remix Project - Announce Trailer}} - Release Trailer on YouTube
 
{{references|1=
{{ref2|cite id=1|access-date=June 4, 2024|{{Yt|aM_gzfAMdNs|page=watch|NVIDIA - Half-Life 2 RTX, An RTX Remix Project - Announce Trailer}}. {{yt}}.}}
{{ref2|cite id=2|access-date=Jan 9, 2024|[https://www.nvidia.com/en-us/geforce/news/rtx-remix-open-beta-half-life-2-rtx-trailer/ NVIDIA RTX Remix Open Beta Begins January 22nd; New Half-Life 2 RTX Trailer Released]. ''{{nvidia|3.1|nt=NVIDIA}}''.}}
}}
{{Half life games}}
[[Category:RTX Remix]]
{{SourceBranchCategory|src13sp}}[[Category:Mapbase Mods]]

Latest revision as of 23:59, 2 April 2025

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Todo: Make references instead of direct links
Steam Logo
Half-Life 2 RTX is currently available on Steam.
 🛒 Buy it on Steam (via Browser | Steam client*)
Notice: Demo version only. Featured Ravenholm and Nova Prospekt.
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Half-Life 2 RTX
Software Cover - Half-Life 2 RTX.jpg
Developer(s)
Orbifold Studios
Publisher(s)
Orbifold Studios
Release date(s)
March 18, 2025 (Demo)
Full version in development
Mode(s)
Platform(s)
Engine
Steam AppID
Written in
Mod support
Yes
System requirements
Distribution
Official website
Links

Stub

This article or section is a stub. You can help by expanding it.

Half-Life 2 RTX Half-Life 2 RTX - An RTX Remix Project is the second Source game to be built using RTX Remix. It, as the name implies, is a RTX revamp of the original Half-Life 2, similar to how Portal was revamped with Portal with RTX. Being developed by Orbifold Studios, it aims to revamp the entire game with RTX lighting, PBR textures, etc. This game was also promoted by Nvidia via their official YouTube channel.[1]

With the release of the first trailer, the Dr. Kleiner's lab has been revealed, along with an updated HEV suit and revamped models & props. Plus the floor textures now utilizing ray-tracing reflections. A demo version (featuring Ravenholm and Nova Prospekt) was released on March 18, 2025.

Half-Life 2 RTX ships with Source SDK tools, along with Hammer++ Hammer++ and Slammin' Source Map Tools.

Features

Half-Life 2 RTX runs on a modified version of Source 2013 Singleplayer (pre-anniversary engine with Mapbase Mapbase) which allows support for DirectX 7 render path, previously deprecated in Orange Box engine branch (also known as Source 2007).

Real-time ray tracing
By default, the Source engine only has static bounced lights created during compilation (VRAD). Half-Life 2 RTX (and all games on RTX Remix) has all static lights replaced with lights that are ray traced and bounced in real-time.
Physically Based Rendering
A approach that creates realistic reactions to light. Many assets (textures, models) have been remade to take advantage of PBR.
DirectX 7 render path, Vulkan, Direct3D 12
Half-Life 2 RTX runs on mat_dxlevel 70, then uses DXVK to translate Direct3D 9 (with feature level 7.0) to Vulkan while also replacing the game assets, then output as Direct3D 12 afterward.
Nvidia DLSS 4.0 (with Frame Generation)
A upscaling algorithm developed by NVIDIA, which relies on machine learning. With DLSS, the game runs on lower resolution to improve framerate, then use AI to upscale the game to higher resolutions while also enhancing the image by adding temporal anti-aliasing and makes the image sharper. It also comes with DLSS Frame Generation, which generates a frame (and smoothly transition) between two rendered frame. However using DLSS Frame Generation, will add additional input lag, so using NVIDIA Reflex is recommended to reduce system latency.
Nvidia Reflex
NVIDIA Reflex aims to reduces system latency, and makes keyboard & mouse movement more responsive.

History and Updates

The game was first announced in September 9, 2023, with the first trailer released.

In Jan 8, 2024, NVIDIA announces NVIDIA RTX Remix Open Beta, which would allow other Source games such as Garry's Mod, VTMB and many other DirectX 8 & 9 games to have RTX. On that same announcement, a second Ravenholm RTX showcase trailer was released in Jan 8, 2024[2].

A demo version featuring Ravenholm and Nova Prospekt chapter was released on March 18, 2025.

An update was released in April 1, 2025, which added tonemapping to make the image less over-brightened. It also fix crashes and other bugs.

Gallery

System Requirements

Minimum:
  • Processor: Intel i5-8600, AMD Ryzen 5 3600
  • Graphics: NVIDIA GeForce RTX 3060 Ti
  • Memory: 16 GB RAM
  • Storage: 50 GB* or more, HDD
  • OS: Windows 10/11 or later
  • Other: Vulkan, DX12, ray-tracing capable GPU required
    DLSS highly recommended for weaker/lower-end GPUs, however, this will result in blurrier image.
    * - Game size: 41.4GB.

External Links

References

References
GoldSrc GoldSrc
Source Source
Source 2 Source 2
Half-Life: Alyx Half-Life: Alyx
Cancelled: Half-Life 2: Episode Three Half-Life 3  • More
Other Engines
Third-party: Codename: Gordon Codename: Gordon (Adobe Flash) • FreeHL (FTE)
Related
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