Ad Lucem

If you liked this item, please rate it up on Steam Workshop page.

Authors: Borsch, skenera

Last revision: 28 Jul, 2025 at 12:34 UTC (6)

File size: 69.44 MB

On Steam Workshop

Description:

🎉 Ad Lucem has been updated for 1.37!
This update brings no new additions to the mod.

New releases!

⚠️Attention Linux users!⚠️

If you are experiencing issues with this mod while playing on Linux, set PARALLAX, REPLACE_WATER_TEXTURE and WAVES in the mod’s constants.fxh file to false and FOW_FLAT to true in constants.fxh, to see if it makes any difference. It has been reported that these tweaks fix the hard lockups (see the discussion below).

Ad Lucem, the long-anticipated graphical enhancement mod, makes its way to the Steam Workshop. Not alike any other, this modification features plethora of changes to the game’s appearance, making it look better than ever before:

  • New terrain textures
  • Tone & Parallax Mapping
  • Improved shadow blur
  • Improved snow
  • Improved province highlight shader
  • False colors [imgur.com]
  • Fancy Fog of War
  • New water shader

📢This mod was made by skenera. Borsch only maintains the workshop page.

Ad Lucem offers a variety of customization options

which you can tailor to your needs by changing specific values in the mod files. To begin, go to:
steam/steamapps/workshop/content/236850/1469605293
Then open:
gfx/FX/constants.fxh – Open this file using software of your choosing, I recommend Notepad++.
Using the following table, change the listed settings as you please:

Compatibiliy

Due to the structure of Ad Lucem, only few graphical mods are incompatible with it. You will run into no issues with any mods changing the world map graphics files – Beyond Typus looks great with Ad Lucem enabled, however MEIOU is incompatible, unless you use a patch, which you can get here.[forum.paradoxplaza.com]

However, this mod is incompatible with other ones like: Revolutionary Borders Mod, Europa Reborn, Theatrum Orbis Terrarum, etc.

Links

Original EU4 Reddit post – Manual Ad Lucem download links for 1.28, 1.29 and 1.30, as well as a standalone province selection effect mod.

Screenshots were taken with the Simple Borders addon, which can be downloaded from the link below: Simple Borders addon

Disclaimer: I do not own this mod. Ad Lucem was uploaded to EU4 Steam Workshop in courtesy of its original creator, skenera.