Fallout 4

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About this mod

A non-intrusive mod that aims to fix inconsistencies within the Vault-Tec Workshop DLC. This version addresses lighting and texture issues, adds light snapping to walls and ceilings, adds sign snapping to doors, enables crate stacking, and makes some minor quality-of-life changes.

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(Previously known as Vault-Tec Workshop Lighting Fix)

What does this mod do?

This mod is a re-built version of the Vault-Tec Workshop Overhaul mod. Unfortunately, it was abandoned by the author several years ago and no longer functions properly. I have decided to update the mod and pick up where they left off.

This fixes three of the main lighting issues within the Vault-Tec Workshop DLC; brightness, lighting node positions, and the bug that caused lights that were on to appear off. It also addresses some minor texture and quality-of life-issues (see features), adds two new light sets for performance and eye-candy and adds light snapping to some building pieces.



  • Lighting bug that caused lights that were on to appear off has been fixed.
  • Lights now project light from the correct source (see screenshots).
  • Lights now have the same values as those found in existing Vaults, such as Vault 81 and the entrance of Vault 88 (see screenshots).
  • Lights are now spotlights instead of omnidirectional.
  • Comes with three lighting "presets," these include [LOW], [HIGH], and [ULTRA] lights. See the performance section for more details.
  • Adds a new pivoting spotlight.
  • Adds the curved wall light seen in other Vaults.


  • The Vault Power Conduit has had its range doubled.
  • The bridge building pieces now carry power like the rest of the Vault pieces.


  • Wall lights now snap to walls. Work-in-progress; not all pieces have snap points.
  • Ceiling lights now snap to ceilings. Again, this is a work-in-progress. not all pieces have snap points.
  • Illuminated Vault signs now snap above doorways.
  • Overseer desk now snaps to Overseer Room pieces.


  • All of the Vault "rooms" (except the Overseer set) are now derived from a single set of meshes, rather than having individual meshes for every room. This allows for a smaller file size and streamlined updating process. It also gives every piece a consistent look from the outside.
  • Crates can be stacked on top of each other.
  • Adds a buildable "shortcut" to your workshop's inventory. It is found under Furniture > Containers.

Will this mod have compatibility issues?

This mod (as of May 19, 2020) changes 10 of the lights, 15 of the doorway signs, and 124 of the building pieces from the Vault-Tec Workshop.  If any of those components have been changed by other mods, then yes; there will be issues. This mod does however address three of the problems that have been addressed separately, so you will only require this mod. This mod also adds a lot of new meshes, though they are only activated through the mod plugin.

  • Vanilla Extensions by Ethreon 

Will this mod cause performance issues?

This mod comes with three flavors of lights; [LOW], [HIGH], and [ULTRA]. The base lights have been swapped with the [LOW] set, so whatever lights you had placed before installing this mod will be set to [LOW]. These versions cast no shadows. They also don't have the lens flare.

Next up is the [HIGH] set. These lights are the cream of the crop, as they cast shadows and have lens flare. It'll make your rooms look much better as the lighting won't look flat. However, using too many in one place will without a doubt drop your FPS. I recommend building with [LOW] lights as a default and replacing them with [HIGH] lights where you want it to look better.

Finally, we have the [ULTRA] lights. These lights are exactly the same as the [HIGH] lights, but they have volumetric lighting enabled (AKA godrays). I would be careful with these and use them sparingly for two reasons:

  1. The godrays can be overpowering if not placed correctly.
  2. Using too many WILL tank your FPS.

How do I install this mod?

You can use a Mod Manager, which is simple enough, or you can extract the files manually; the Meshes folder and the Vault-Tec Workshop Overhaul plugin file both go in your Data folder. Then simply activate the mod in-game.

I have another question.

Ask away in the comments. I will check back frequently (I promise). If you have a bug to report then please be as detailed as possible with your issue. However, please keep in mind that I am not an expert modder by any means. This is simply an update of an older mod with some other stuff thrown in.


Special thanks to Pheonix64 for teaching me a bunch of stuff, providing resources AND figuring out ceiling snapping.
Special thanks to Petemichaelbabicki for the original version of this mod.
Special thanks to Ccmads for fixing the lighting bug.
Thanks to Cedaie for finding another Bethesda bug.