Getting true HDR output in Clive Barker’s Hellraiser: Revival isn’t handled through the in-game menu — it’s done by editing a config file on your PC. If you’re chasing the deepest blacks and brightest highlights this game can deliver, that extra step is worth it, and I’ve laid out the exact file path, the lines to paste, and the settings you can tune to match your display.
This is a short process once you know where to look, but the folder is buried a few levels deep in your AppData directory and the values only look right on specific panels — so I’m spelling out both the copy-paste block and what each luminance entry actually does before you commit to it.
Locating the engine.ini File
Start on the drive where Windows is installed — usually C:\. From there, navigate down to the following folder:
\Users\<Username>\AppData\Local\Hellraiser\Saved\Config\Windows
Swap <Username> for your own Windows account name so the path resolves correctly. Inside that Windows folder you’ll find engine.ini. Open it with Notepad — right-clicking and choosing “Open with” is the reliable way, since a plain double-click sometimes fails to pick a text editor.
Adding the HDR Lines
Once engine.ini is open, copy the block below and paste it directly after whatever entries already exist in the file. The order of these values matters because the game reads the renderer settings in sequence.
r.FullScreenMode=0
r.AllowHDR=1
r.HDR.EnableHDROutput=1
r.HDR.Display.OutputDevice=5
r.HDR.Display.ColorGamut=2
r.HDR.UI.CompositeMode=1
r.HDR.UI.Level=1.5
r.HDR.Display.MaxLuminance=670
r.HDR.Display.MidLuminance=23
r.HDR.Display.MinLuminanceLog10=-7.0
Save the file when you’re done. You do not need to set it to read-only — the game won’t overwrite these entries on its own, so leave the file permissions as they are.
Tuning the Luminance Values
Three of those lines control how the image actually looks on your screen, and they’re the ones worth adjusting to match your hardware:
| Setting | What It Controls | My Notes |
|---|---|---|
| r.HDR.Display.MaxLuminance | Peak brightness level | Set this to match your display’s rated peak brightness. |
| r.HDR.Display.MidLuminance | Medium gray brightness level | Keep this fairly low — push it too high and the picture turns washed out. |
| r.HDR.Display.MinLuminanceLog10 | Minimum shadow brightness level | Lower values give darker shadows but can swallow detail in dark areas. |
The values in the paste block above are tuned for a HDR400-rated display with roughly 670 nits of peak brightness. If your panel is rated differently, MaxLuminance is the first number I’d change to match it.
Final In-Game Adjustment
As an optional last step, set the in-game gamma to 1.8. It isn’t required for HDR to work, but it pairs well with the config values above and is the finishing touch I’d apply before judging the final image.
Conclusion
Once the file is saved and gamma is dialed in, launch the game and see how the darker scenes read on your display. If the shadows feel crushed or the highlights look flat, nudge the luminance values and reload — a few small tweaks usually get you to a picture that finally does the source material justice.