(yes, it was vibecodeded. legitinmate issues added will be investigated.)
Clamps the Jurassic World Evolution 3 HUD and menus to a centered area on ultrawide monitors, at full height. The build tab and other edge-docked panels move inward so you don't have to turn your head on a 32:9 screen.
By default the clamp adapts to the monitor: super ultrawide (32:9) gets a 21:9 UI, ultrawide (21:9) gets a 16:9 UI, and 16:9 screens are untouched. Fixed and custom ratios are available too. Cutscenes are deliberately left at full width - the game letterboxes those itself.
The built-in "UI safe zone" setting shrinks the UI on all four sides; this mod pads the sides only. The in-game setting still works and is applied inside the clamped area.
Download JWE3UltrawideClamp.exe from
Releases. It auto-detects the Steam install and your
monitor, shows what Auto will do, and gives one-click Deploy / Revert.
The first deploy backs up the stock file next to the game's OVL, so
Revert works without any other files.
It also works headless: JWE3UltrawideClamp.exe --deploy [--aspect 21:9] [--game DIR], --revert, --status (logs to jwe3clamp.log).
JWE3's UI is Coherent Gameface: a real HTML/CSS/JS app packed inside
ovldata/GameMain/Content/UserInterfaceEssentials.ovl. The game's own
safe zone feature (UIScale.js) applies a transparent CSS border to
<body>. The mod patches getSafeframePaddingH() so the left/right
border is at least (screenWidth - screenHeight * aspect) / 2, which
clamps every safeframe-aware view (HUD, menus, cinematics) to the target
aspect. World-anchored markers are unaffected because Frontier does not
apply the safeframe to those views.
The mod's edits live in tools/pipeline.py (MOD_EDITS);
patches/UIScale.js.patch is the same change as a reviewable diff.
tools/ppuipkg.py handles the .ppuipkg container format that
cobra-tools dumps (XML with signed-int8-encoded file contents).
Requirements: Windows, Python 3.12+ with numpy<2, imageio, pillow,
bitarray, and cobra-tools
cloned into the repo root
(git clone --depth 1 https://github.com/OpenNaja/cobra-tools).
python tools/gui.py # the same GUI as the exe
python tools/apply.py # CLI deploy (auto aspect)
python tools/apply.py --aspect 21:9 # fixed ratio
python tools/apply.py --no-install # build only, leave game untouched
python tools/apply.py restore # put the stock OVL back
python tools/build_exe.py # build the standalone exe (pyinstaller)
Game updates overwrite the mod; just deploy again afterwards (the tool refuses to double-patch and refreshes its backup from the updated files). Steam's "verify integrity of game files" also restores stock.
GPL-3.0. The release exe bundles
cobra-tools (also GPL-3.0).
The small excerpts of the game's UIScale.js that appear in the patch
are Frontier Developments' copyright, included only to locate and
describe the modification.