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GunMod's Radiance Light System 2.1

by GunMod Posted 5th Nov 2005 at 3:32 AM - Updated 16th May 2009 at 10:18 AM by Numenor : Updated info and links
728 Comments / replies (Who?) - 4 Feedback Posts
Picked Upload! This is a picked upload! It showcases some of the best talent and creativity available on MTS and in the community.
EDIT by MTS2 Staff

Gunmod, the creator of the Radiance Light System, has quit modding long ago and therefore the development of the Radiance has been discontinued.
However, other people have continued GunMod's work, or have created alternative lighting systems.

Here are some useful links to various existing Light Systems (thanks Niol for collecting and providing them); the Radiance version 2.4 can also be installed automatically using the SCRIPTORIUM (old versions 2.1 to 2.3 can only be installed by hand).
  • Radiance Light System 2.1 by GunMod @ MTS2 (LINK)
  • Radiance Light System 2.2 BETA RC1 by GunMod & Chocolate Pi @ MTS2 (LINK)
  • GunMod's Radiance Light System 2.3 for all EP/SP by dDefinder @ MTS2 (LINK)
  • GunMod's Radiance Light System 2.4 for all EP/SP by dDefinder @ MTS2 (LINK)
  • Lighting Mod by spookymuffin @ InSIM (LINK)
  • Aaron's Ambiance Mod by stargazer @ GaySimsClub2 (LINK)

And here are some links about modding the lighting.txt game file:

If interested, please visit the provided links and read the instructions, specifications and compatibility of each mod from its own thread

(Original GunMod's post following)

Fixed light not traveling through arches. Thanks Daan1302
Fixed inside portal coloring. Was too colorful.
Fixed outside light spill. Objects light up more when near window with lamp/light.
Updated to Include all EP's
Auto installs for all EP's
Includes 4 Times of day for Downtown and University (if you have the EP)
This means you can party in the morning, daytime, evening and night.
So Nightlife isn't just "Night Life"

Included a manual install option for PC and MAC users. (seperate download)

Install Procedures:

Download or

For the auto install, extract the .exe file to a temp folder, run the exe, then during the install make sure the path is C:\Program Files\EA Games

For the manual install: Extract zip file into: C:\Program Files\EA Games
Allow it to overwrite

To Uninstall:

Extract to: C:\Program Files\EA Games
Allow it to overwrite.

Notes: Because a lot of the default lots use the broken Maxis Diffuser light,
you will want to go in and change the lighting esp. in Downtown lots in Nightlife.
Sorry about this, but it's not my fault Maxis chose to use the broken one

This was made for ENGLISH version installs of the Sims 2.

If you have a NON ENGLISH version of the Sims 2:
Extract the manual version to a temp folder.
Copy the lighting.txt file found in:
The Sims 2\TSData\Res\Lights

to [email protected]\TSData\Res\Lights

Where [email protected] is whatever The Sims 2 folder is called

Next copy the Lighting.txt and downtown_lots.txt files found in:
The Sims 2 Nightlife\TSData\Res\Lights

to [email protected]\TSData\Res\Lights

Where [email protected] is the folder you have for The Sims 2 Nightlife.
Note these are both in Program Files\EA Games

So make sure that if you own a NON ENGLISH version, that the install
program points to your Sims 2 folder.

Works with All or no Expansion Packs.
If you do not own Nightlife it will still create a harmless folder called:
C:\Program Files\EA Games\The Sims 2 Nightlife.
If you do NOT own Nightlife, this folder can be safely deleted after the install.

Do NOT use Smart Lights 2 with this!
THis version overwrites any previous version.

You must have the expansion or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Sims 2
Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date

Size: 31.6 KB · Downloads: 30,865 · 6th Nov 2005
31.6 KB 30,865 6th Nov 2005

Size: 148.7 KB · Downloads: 55,368 · 6th Nov 2005
148.7 KB 55,368 6th Nov 2005

Size: 32.7 KB · Downloads: 34,587 · 6th Nov 2005
32.7 KB 34,587 6th Nov 2005
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Basic Download and Install Instructions:

1. Download: Click the download link to save the .rar or .zip file(s) to your computer.

2. Extract the zip, rar, or 7z file.

3. Place in Downloads Folder: Cut and paste the .package file(s) into your Downloads folder:
  • Origin (Ultimate Collection): Users\(Current User Account)\Documents\EA Games\The Sims™ 2 Ultimate Collection\Downloads\
  • Non-Origin, Windows Vista/7/8/10: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads\
  • Non-Origin, Windows XP: Documents and Settings\(Current User Account)\My Documents\EA Games\The Sims 2\Downloads\
  • Mac: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads
  • Mac x64: /Library/Containers/com.aspyr.sims2.appstore/Data/Library/Application Support/Aspyr/The Sims 2/Downloads
Need more information?
728 Comments / Replies (Who?) - 708 Feedback Posts, 6 Thanks Posts
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Field Researcher
#726 Old 5th Jul 2014 at 11:08 PM
I loved everything about this mod, except that it had a tendensy to make everything that wasn't directly lit, black. So if I placed a door and there was sunlight hitting it from one room but not the other, one side of the door would show as bright white and the other as pitch black, which I don't find very realistic as there was still light in the dark room, just no DIRECT light coming at it.

Furthermore, I experienced a glitch when I put a doorway (I think it's called in English, when it's just a frame with no door in it?). I should have taken a screenshot, but I always forget. I had made a hallway, so I had the front door in glass, bringing light into the hallway. Then I placed a doorway (or whatever it's called) at the opposite side of the hallway (approxemately 3 tiles away) and once I placed it, the light that was let into the hall through the front door disappeared and instead came through the doorway and into the livingroom. Transportation much?

Other objects would also turn pitch black when placed inside. Even in a fully daylight-lit room. For these reasons, I had to remove the mod. The idea behind it is great and I would have loved to use it if the contrast had perhaps been a little less extreme.

Thank you, nontheless!
Test Subject
#727 Old 8th Mar 2015 at 8:36 PM
I really, really want to download this and put it in my game. It looks awesome, but will it work with Sims 2 Ultimate Collection?
Test Subject
#728 Old 23rd Aug 2019 at 5:42 PM
Posting this here for ease of access. Yes it does work with The Sims 2: Ultimate Collection.
Here is an easy to follow guide on how to install GunMod's Radiance Light System with TS2:UC

Originally Posted by Peni Griffin
Your game is your game. You do whatever you need to do to enjoy it and don't get bogged down in keeping it pristine. You can't play soccer with a clean ball.
Site Helper
#729 Old 24th Aug 2019 at 12:07 AM Last edited by natboopsie : 24th Aug 2019 at 12:38 AM.
Appreciate your wish to give UC downloaders easy access to up-to-date installation directions, FoxChicken!

However, just down the thread from ovenhole's directions that you linked as a single post, there's mention (starting here) that the Scriptorium (compatible with all game versions including the UC) auto-installs Radiance in just one click---so quite a lot less work.

In fact, ovenhole stated themselves in that same thread that if they were installing Radiance today, they'd use the Scriptorium method.

Even more important, UC users should note that the version of Radiance in this download thread is outdated for them. For compatibility with M&G and all stuff packs, anyone who wants to install the UC-compatible versions of Radiance, whether by hand or Scriptorium autoinstall, should check the front page of this download for links to an updated Radiance version instead.

*Ongoing TS2 informational projects (come on by to contribute, get info, or spectate!): (1) the SimPE Preservation Project and (2) Conflict Tracking for the 3t2 Traits Project Mods
*Need a Pescado mod? Use his hack directory: in the first post, find the link for your latest EP, then go in hacks/
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