Release 1.3.2

Important - this release comes in two flavors

1. The default one (stable) which should generally be used
2. A version that incorporates a WIP physical atmosphere + volumetric clouds + weather system "Numos" (Remix Plus) by
   • https://github.com/Kim2091
   • https://github.com/sambow23
   • https://github.com/TheGreatHMMMM)

If you want to test the new sky system:

1. Install the Compatibility Mod by following the Installation guide further down below.
2. Afterwards, download GTAIV-AtmosTestAssets-1.3.2.zip and extract its contents into your GTA4 folder (where GTAIV.exe is located) and replace all files when prompted

✳️ If you need support or have questions about this version, please ask on discord and refrain from creating an Issue on GitHub.

Changelog

Remix Runtime:

• Rebased remix runtime to near top of tree (latest changes)
• Pulled all of the new tonemappers from Remix Plus (by https://github.com/TheGreatHMMMM) into the stable branch

Anti Culling:

• Implemented a new anti culling system which renders map sectors outside the players view frustum with their lowest LOD.
  This fixes most of the long distance shadows popping in and out of existence.
• Adjusted other anti culling settings to regain some performance
• Added a new system which forces high LOD objects - that are really close to the player - outside of the view frustum.
  This prevents lights from turning off when they are no longer in view, as some are only attached to high LOD objects.

Installer:

• Added standalone git cloning for remix mods. Users can now choose to create a local git repo or continue to use the zip download. Using git will make incremental remix mod updating much, much faster because only changed files are getting pulled.

General:

• Added weather and clock settings to the utility tab
• Fixed #87 fbi buffalo sirens + improved siren spotlights
• Updated the FusionFix fork to force-disable more settings that caused issues + changed the d3d9 string to rtx remix
• Fixed overly bright bowling interior and underground lights in centralpark via light tweaks (rtx_comp\light_tweaks\z_comp-mod.toml)
• Incorporated the local tonemapper changes into rtx.conf (and removed the addon settings file)
• Fixed an issue where the comp_settings.toml was overwritten with settings from addon setting files
• Removed expensive rain collision setting because its no longer supported
• Fix vehicle light z-fighting

Updates to the remix base mod:

• Tweaked raindrop visuals
• Started replacing alpha tested / blended chainlink fences with fully modeled fences all around the map to improve performance (because less OMM building)

Physical Atmosphere Branch:

• Sparkles made a bunch of performance improvements and visually overhauled many aspects of the cloud rendering
• Many other issues were fixed
• All related settings can be found in the Alt+X menu, second tab under the sky section

---

Installation:

Install using the installer:

1. Download GTAIV-Remix-CompatibilityMod-1.3.2.zip

2. Download GTAIV-Remix-CompMod-Installer.exe

3. Place both files in the same folder (no need to copy them to your game folder) and run GTAIV-Remix-CompMod-Installer.exe

4. Use the File Dialog to select your GTAIV.exe which is located in your GTAIV install folder

5. If this is your first time installing, the installer will ask if you want to install a custom Fork of FusionFix
   If you already have FusionFix installed, it's definitely recommended to install this because the original, unmodified version has a few incompatibilities with RTX Remix. If you do not have FusionFix installed, you are free to choose. It's not a requirement.

6. The installer will ask you if you want to download the required base-remix-mod.
   You can install this via a standard zip download or choose git, which will create a local repository that makes incremental updating easier and faster.

7. Make sure that you remove all custom launch arguments for GTAIV in Steam (if you have any set)

OR Install manually (no need to do this if you've used the installer):

1. Download GTAIV-Remix-CompatibilityMod-1.3.2.zip

2. Open the zip and extract all files contained inside the GTAIV-Remix-CompatibilityMod folder into your GTAIV directory (next to the GTAIV.exe). Overwrite all when prompted.

3. If you want to use FusionFix or have it installed already, it's definitely recommended to install my custom fork of FusionFix because the original, unmodified version has a few incompatibilities with RTX Remix.
   You can find the files inside _installer_options/FusionFix_RTXRemixFork. Extract the plugins & update into your GTAIV directory and override any existing files.

4. Download gta4-rtx-base-mod

5. Extract the mods folder (inside of gta4-rtx-base-mod-master) into your rtx-remix folder so that the folder structure looks like this:

.  
├─ ...
├─ 📁 steamapps
│  └─📁 common
│     └─📁 Grand Theft Auto IV
│       └─📁 GTAIV
│         ├── 📜 GTAIV.exe.exe
│         ├── 📜 d3d9.dll
│         ├── 📜 ...
│         │
│         ├── 📁 rtx_comp
│         └── 📁 rtx-remix
│             └─📁 mods
│               └─📁 gta4rtx
│                 ├── 📜 comp_cars.usda
│                 ├── 📜 comp_effects.usda
│                 ├── 📜 mod.usda
│                 └── ...
└── ...  

Usage and general Info

• Run the game like normal or use the provided batch files (mentioned in the Wiki further down) if you notice heavy stuttering.

• It's recommended to adjust distance and quality sliders in the GTA4 graphic options (higher values => earlier CPU bottleneck).
  Try 30 for view distance and 40 for quality and adjust from there. The first launch might cause problems, simply re-try a second time.

  Press Alt + X to open the Remix menu
  Press F4 to open the Compatibility Mod menu

Important

Troubleshooting / Guides -- Look into the Wiki if you are having issues:
https://github.com/xoxor4d/gta4-rtx/wiki/Troubleshooting---Guides

Note

The release includes a custom remix runtime build that contains a few necessary changes. Info about the changes can be found here:
https://github.com/xoxor4d/gta4-rtx/wiki#remix-runtime-changes-and-differences-in-usage

---

Edit - 18th of June 2026:

• updated rtx.conf file in GTAIV-Remix-CompatibilityMod-1.3.2.zip
• updated rtx.conf file in GTAIV-AtmosTestAssets-1.3.2.zip
• updated installer to rename certain, deprecated files from older versions of the mod that can cause issues now