Fallout 4

About this mod

Disables LOD lights in mostly exterior world space, to increase performance and remove lag.

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Changelogs
This is a minimal invasive mod that aims to eliminate certain strongly illuminating light sources which to some extend are performance heavy on low end CPUs. Many of these enlight certain environment much more than needed. Corvega for instance uses a light with a radius much higher than 2000 which from my point of view is the reason why this area is lagging when walking on the catwalk on top.

Almost all of these are present in exterior environment. Almost exlusively marked "Persistent" and flagged "Never Fades" or "Is Full LOD". The game rarely marks them LOD lights, yet almost all of them are LOD lights. CharlesViewLODLight is one of the very few records properly named in the core game.

From the creation kit wiki:
Is Full LOD: Reference will not fade from a distance. Good to apply to very large objects or lighting where fading out would feel obvious and awkward. Warning: Can impact performance if over-used.

Fyi,
- Vanilla FO4 often times uses the FXLightRegionInvertDayNight [REGN:00001173] emmitance effect which forces lights to change appearance or turn off for a specified, hardcoded time window. Most of these lights should have been using this effect, rarely it was applied.
- This mod adds proper naming, to the EDID signature per record per reference for better orientation and easier maintenance.

Radius peaks at 6000 in some cases. Such as the light in the glowing sea crater. But mostly between 1000 and 2000 which is very much. Compared to other lighting techniques from Bethesda where there are many light sources with far lower radius in use, these high radius lights are heavy. The light around Diamond City peaks at around 4000. One light enlights a whole cell. And one light can shine throughout the whole Commonwealth. Since the game is laggy as hell in Boston City, this mod will probably affect it to the better once done.

There are many more heavy lights in the Persistent section, although not all are part of this mod yet, such as 50+ spotlights.

In the following a complete table of all the lights altered by this mod:
Spoiler:  
Show
[FormID] Arc 1 Type  EditorID  Arc 2
[00214F9F] 3001 defaultLightFire01NS AtomCatsGarageExt01 0
[00184F0C] 780 defaultLightFire01NSFlicker BostonAirportExt04 768
[00184F0B] 859 defaultLightFire01NSFlicker BostonAirportExt05 768
[0017770B] 1088 SubwayFluorOmni01NS BostonAirportExt11 0
[0017770C] 1243 SubwayFluorOmni01NS BostonAirportExt11 0
[002111F1] 1309 MuseumBounceWarm04NS BunkerHillExt 0
[002111F3] 1309 MuseumBounceWarm04NS BunkerHillExt 0
[00211270] 1234 defaultLightWarm01NS CabotHouseExt 0
[00090903] 2315 DefaultLightWaterBlueGreen01NS CambridgeCampKendallExt 2048
[0021126E] 1914 defaultLightFire01NSFlicker CambridgeCampKendallExt 0
[0021124E] 1778 defaultLightFire01NSFlicker CambridgePDExt 0
[00090904] 641 defaultLightFire01NSFlicker CambridgePDExt02 0
[00090912] 797 defaultLightFire01NSFlicker CharlesViewAmphitheaterExt 768
[0018A46A] 2289 IndBlueGreen01NS CorvegaAssemblyPlantExt 0
[0009093E] 977 defaultLightFire01NSFlicker CorvegaAssemblyPlantExt05 0
[0009099C] 2585 DefaultLightWaterOrange01NSCaustics CraterHouseExt04 0
[00213040] 1290 defaultLightFire01NSFlicker CrossRoadsExt01 0
[00213054] 1852 defaultLightFire01NSFlicker CustomHouseTowerExt 0
[00214E1D] 1866 defaultLightFire01NS DBTechHighschoolExt 0
[00214DC8] 1895 SubwayFluorOmniCoolNS DiamondCityExt 0
[0020BCEF] 2829 defaultLightFire01NS DunwichBorersExt02 0
[00211204] 2446 defaultLightFire01NS EasyCityDownsExt02 0
[00214F7B] 1719 defaultLightFire01NS FallonsDepartmentStoreExt 0
[00211272] 1523 defaultLightFire01NSFlicker FaneuilHallExt 0
[00211179] 2104 defaultLightFire01NS FederalRationStockpileExt 0
[00214DE1] 1473 defaultLightFire01NS FensEvansWayCuldeSac 0
[00213033] 1467 defaultLightFire01NSFlicker FensIntersection01 0
[00212FCE] 2831 defaultLightFire01NS ForestGroveMarshExt 0
[00090C4E] 771 defaultLightFire01NSFlicker FortStrongExt07 0
[000EEFDB] 1107 defaultLightFire01NS GeneralAtomicsGalleriaExt02 0
[0019593A] 6029 DefaultLightWaterGlowingSea01NSCaustics GlowingSeaCrater 0
[00214E9E] 1744 DefaultLightWaterGlowingSea01NS MassFusionDisposalExt02 0
[00211271] 886 defaultLightFire01NSFlicker MassFusionExt 0
[00214D73] 2715 defaultLightFire01NS MassPikeInterchangeExt03 0
[00214DAD] 2116 defaultLightFire01NS MassPikeTunnelWestExt 0
[0018B21A] 1183 defaultLightFire01NSFlicker NatickBanksExt02 256
[0020BCF0] 928 DefaultLightWhite01NS ParsonsStateExt02 0
[00215649] 2533 DefaultLightWhite01NS QuincyQuarriesExt03 0
[00091CDC] 1655 defaultLightFire01NSFlicker RevereSatelliteArrayExt 768
[0002A4C0] 930 defaultLightFire01NSFlicker SaugusIronworksExt 512
[0002A4BE] 1540 defaultLightFire01NS SaugusIronworksExt02 512
[00182B27] 935 DefaultLightWhite01Spot Vault75 0
[0020BD71] 1062 defaultLightFire01NS WestEverettEstatesExt02 0
[0021124B] 2224 defaultLightFire01NS WestonWaterTreatmentExt 0
[0021126C] 2096 defaultLightFire01NSFlicker Wilderness, CambridgeConstructionSiteExt 0
[0011B342] 4216 DiamondCityStadiumLights01NS Wilderness, DiamondCityExt 0
[0021127F] 1328 defaultLightFire01NSFlicker Wilderness, EastBostonPrepSchoolExt 0
[0021125A] 1878 defaultLightFire01NS Wilderness, InstituteExt 0
[00211207] 3759 defaultLightWarm01NS Wilderness, LibertaliaExt 0
[0021121A] 1182 defaultLightFire01NSFlicker Wilderness, MS04NorthyHideout 768
[00091CDD] 1655 defaultLightFire01NSFlicker Wilderness, RevereSatelliteArrayExt 768
[0021303F] 829 defaultLightWarm01NS Wilderness, WaterfrontExt 0