Enhanced Global Illumination and Lighting v1.3
Enhances global illumination by brightening areas that are too dark, increasing vibrancy of bounce lighting and light through translucent materials, and minimizing light leakage. Now improves shadow LODs.
A huge thanks to nimbuI for creating the essential tools and developing this mod! With their approval, I’m sharing a version with slight adjustments to match my personal preferences. Feel free to tweak these settings further to suit your own taste.
All included screenshots were taken using settings closest to the “Strong” preset.
Interior lighting comparison, sunny day, ReaLUTy.
Installation:
The mod can be installed with Vortex or manually installed by extracting the ZIP file into your mods folder.
Toggle/Cycle settings:
Enhanced GI settings are applied by default when the mod is installed. To compare the changes with the vanilla lighting, disable the mod, or compare profiles, two commands are bound by default:
F6 -> Toggle Enhanced GI
F7 -> Cycle between all GI profiles (weak, balanced, strong)
Customization:
For optimal results, it is recommended to set the in-game global illumination setting to Ultra.
The multiprofile version allows loading multiple e_svoTI configs by adding them with “GI_RegisterProfile” in EGI.cfg. Default profiles are located in EnhancedGI/profiles.
Change the default GI profile with GI_DefaultProfile in EGI.cfg
You can set a custom profile (or vanilla settings) to be loaded at night time with GI_NightProfile.
You can assign a keybind to load specific GI profiles. GI_SetProfile
If you want even more customization, you can bind our editor commands GI_CycleCvars and GI_ScaleCVar to adjust a profile’s settings in real time. This is an advanced feature.
If you want to make your own profiles, here is all cvars we support:
e_svoTI_DiffuseConeWidth
e_svoTI_DiffuseAmplifier
e_svoTI_IndoorSkyMultiplier
e_svoTI_IndoorSunMultiplier
e_svoTI_InjectionMultiplier
e_svoTI_VoxelOpacityMultiplier
e_svoTI_PropagationBooster
e_svoTI_Saturation
e_svoTI_SSAOAmount
e_svoTI_NumberOfBounces
e_svoTI_PointLightsBias
e_svoTI_PointLightsMaxDistance
e_svoTI_PointLightsMultiplier
e_svoTI_SkyColorMultiplier
e_svoTI_SpecularAmplifier
e_svoTI_SpecularFromDiffuse
e_svoTI_MinReflectance
r_ssdoAmountAmbient
r_ssdoAmountDirect
r_ssdoAmountReflection
r_ssdoColorBleeding
r_ssdoFadeoutBegin
r_ssdoFadeoutEnd
r_ssdoHalfRes
r_ssdoRadius
r_ssdoRadiusMax
r_ssdoRadiusMin
r_ssdoSecondaryBandRadius
If these cvars are being set elsewhere, outside of a profile for this mod, they may be overwritten when the mod initializes. Set this mod earlier in load order to avoid this for now– will fix in an update in the future.
Performance Considerations:
If you’d like to enhance indirect lighting without affecting performance, comment out or remove the line “GI_ExperimentalCVars” in EGI.cfg.
Only one of our CVars in the profiles meaningfully affects FPS:
e_svoTI_DiffuseConeWidth = 4 ; Reduces light leak, default is 8
DiffuseConeWidth at 4 cost me (nimbul) 4 fps, from 90 to 86, in a random forest. RTX 3080, 3440×1440, DLSS Quality.
We do not set e_svoTI_NumberOfBounces by default. Use ultra quality Global Illumination if you want it at 2 (recommended). You can set it up to 3, but it will have an even greater performance impact and in our opinion isn’t worth it.
Known Issues / Incompatibilities:
If you encounter strobing, flickering, or pulsing lighting effects, they are not caused by this mod. Make sure you are not using e_svoTI_AsyncCompute = 1 in your user.cfg. AsyncCompute causes issues with global illumination, and Enhanced GI makes those issues extremely apparent. Enhanced GI attempts to disable e_svoTI_AsyncCompute automatically. If you really want to turn it on, add GI_letmeturnonasync to EGI.cfg.
The script this mod uses to load the profile in-game relies on a hardcoded EGI.cfg file path. If you rename the mod or EGI.cfg or move anything, the mod will break. That is the limitation of some customization.
Experimental Settings:
Update v1.2 introduced new shadow CVars for budgeting/LODs. The experimental settings primarily restore these to pre-patch + boosted.
Changes:
Any 1.x update is a feature update. If only the last version number changes, it’s a light cfg edit or bugfix.
