Players of Metal Gear Solid Delta have gone on to find some potent mods for their PC copy hidden behind Lumen RT, Ray Reconstruction, and DLSS 4 Frame Generation that give the remake some serious visual punch.
Metal Gear Solid Delta: Snake Eater has been finally released on PC, PlayStation 5 and Xbox Series X|S platforms, and it’s a truly professional remake built on Unreal Engine 5 visuals of the legendary MGS3. Console players get an out-of-the-box polished experience but within hours, PC gamers did what they do and Unearthed advanced settings hidden in the game files and then unleashed the Metal Gear Solid Delta full capabilities of the PC version of the game.
Enabling Lumen RT in Metal Gear Solid Delta on PC
By default, the game defaults to Software Lumen global illumination out of the box, but with the slight adjustment to the Engine. In the settings file (ini file), the players can activate the Lumen RT (Ray Traced Lumen). This brings more realistic lighting and reflections but introduces a small performance cost.
To activate this, navigate to:
AppData\Local\MGSDelta\Saved\Config\Windows\
and open the Engine. ini file. Then, add the following commands:
- [SystemSettings]
- r.Lumen.HardwareRayTracing=1
- r.Lumen. Reflections. HardwareRayTracing=1
- r.Lumen. ScreenProbeGather. HardwareRayTracing=1
- r.LumenScene. DirectLighting. HardwareRayTracing=1
- r.Lumen. Reflections. MaxRoughnessToTrace=0.6
- r.Lumen. Reflections. MaxRoughnessToTraceForFoliage=0.6
Soon as you apply Metal Gear Solid Delta PC, lighting and reflections are improved in a way the jungles, interiors and characters feel alive.
Ray Reconstruction for Sharper Visuals
Ray Reconstruction can even be enabled for an additional step of fidelity with:
- r.NGX.DLSS.denoisermode=1
It fine-tunes the bounce of the light and the presentation of shadows, giving PC players of Metal Gear Solid Delta a tighter, crisper presentation.
Enabling DLSS 4 Frame Generation
Unlockable with: NVIDIA DLSS 4 Frame Generation
- r.Streamline.DLSSG.Enable=1
- t.Streamline.Reflex.Enable=1
- t.Streamline.Reflex.Mode=1
DLSS 4 FG makes a massive difference in how well the game runs, more than making up for the cost of Lumen RT. Hardware RT Lumen actually reduces FPS on the RTX 5080—$3,799—by a hair, but DLSS 4Performance mode brings performance back up to ~105 FPS.
Performance Rating metal gear solid delta pc
When Lumen with RT is activated, the frame rate drops by approximately 5–6 FPS as per tests. DLSS 4 more than compensates for this though, keeping Metal Gear Solid Delta PC running at a steady high framerate. If future mods unlock Multi Frame Generation, PC gamers will see even better gains.
Also, remember that Metal Gear Solid Delta PC is capped at 60 FPS. To really get the most out of these adjustments, you will need the community-based framerate unlock mod.
The Importance of These Adjustments for Metal Gear Solid Delta PC
Making Lumen RT and DLSS 4 disabled by default but very easily enabled with a couple of commands is atypical to see for Unreal Engine 5 features! Metal Gear Solid Delta PC still has untapped graphical potential that could allow enthusiasts to push visuals beyond a standard experience, as this discovery emphasises.
The remake already does an admirable job recreating MGS3 as is, but these changes make it the best way — technically, at least — to experience Snake’s legendary mission.
FAQs
Can players turn on Lumen RT by editing the Engine. A: Yes ini file. No external mods are needed.
DLSS 4 Frame Generation offsets this by about 5–6 frames, so yes it does lower FPS, but nothing crazy.
Yes, but players can surpass 60 FPS with a framerate unlock mod.
The benchmarks are with an RTX 5080, and the game runs roughly around 105 FPS with DLSS 4 set on Performance mode.
