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Featured upload! Gunmod's Radiance Light System 2.4 *4/29/09*

by dDefinder Posted 27th Jun 2008 at 3:46 PM - Updated 29th Apr 2009 at 1:24 PM by dDefinder : to 2.4
571 Comments / replies (Who?) - 9 Feedback Posts, 11 Thanks Posts
This is a featured upload! It showcases the best talent and creativity available on MTS and in the community.
"Enhanced lighting system for the Sims 2. Uses physics laws of light
to ensure the most realistic lighting possible within The Sims 2."


2.4 APL-29
-Added optional files. 2 types of unlit room darknesses and a balance to all lights
-removed indoor sunlight color saturation.
-Increased unlit room brightness at night
-Decreased orb lights and few table lamps diffusive Strength
-Changed two street light colors from yellow to white
-Adjusted Sims and object overall light strength
-Adjusted seasons, morning, and evening
-Adjusted winter, Spring, and Fall indoor portal spill to match better with summer
-Adjusted cloudy day, will now resemble winter as but a bit darker and grey
-Fixed street lamp from M and G from casting a very weak light, again


This is all based on Gunmod's Radiance Light System 2.1 and 2.2 made compatible for all expansion packs including stuff packs. I've included the pool shader from 2.2, It should not be used with Seasons if you have useshaders on true. All credit belongs to Gunmod, Previous versions are not needed.

General Changes from 2.2:
>Compatibility for all EP's and SP’s
>Specular highlights for indoors and with usershaders on.
>Fixes to errors found on certain objects and lamps in base game.
>Corrected Dance and Neon lights and color.
>Adjustments to Day, night, Seasons and weather.
>Adjustments to dawn and dusk.
>Adjustments to Archways and Glass doors to make them cast more correctly.
>Adjustments to all light objects and windows.
>Adjustments to Userstartup.cheat
>Increase all light brightness and fallout range.
>Increase Doors and windows fallout range.

Recommended downloads

Smarter Lights by Numenor: "automatically turn the light on and off, depending of the type of the lot, the time of the day and what the sims are doing."

Courtesy Lights by Numenor: "The Courtesy Lights will automatically lit up whenever the room is dark, when the standard lamps are off during nighttime, or in windowless rooms."

Weather Atmosphere by chris997: "buyable sky, it projects new clouds in the atmosphere"

Additional Credits:
Chocolate Pi for RLS 2.2 RC1
Chesspieceface for RLS 2.2 RC2
Original RLS creator Gunmod
Numenor for SCRIPTORIUM, Smarter Lights, Courtesy Lights
skygirl22 Mac Install instructions
MATY, InSim, MTS2 Feedback
Tags: #Gunmod, #Radiance, #Light, #System, #2.2, #2.1, #2.3, #beta, #Lighting, #Mod, #Hack, #RLS, #RC1, #Realistic

Type: Global Mods

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
BACKUP Maxis | Description: Backup lighting 263.1 KB 49,273 25th Sep 2008
Gunmod' | Description: Gunmod Radiance Light System 2 .4 338.9 KB 116,983 23rd Jan 2009
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: Use WinRAR (Windows) or Stuffit (Mac) to extract the .package file(s) from the .rar or .zip file(s).

3. Please Check readme for full information:

How to Install

There are 2 ways to install the mod though automatically with SCRIPTORIUM or by moving and editing the Necessary files as instructed. The easiest way is to do use SCRIPTORIUM while manual is for more advance users.

Installing automatically

To install automatically use

It will install most necessary files including userstartup.cheat you do not need to follow the Manual install instructions. But for updating check 'how to update'
(Thanks to Numenor)

Note: This is does not contain the RLS-Shaders should only be used with NL and up.

For mac install instructions

(Thanks to skygirl22)

Installing with Deluxe or Double Deluxe Editions

Open folder called _Deluxe Editions.
Move the folder of the version of the Deluxe Edition that you have.

If you have Deluxe you don't install "Nightlife" and the "The Sims 2" folders as they are already included the deluxe folder. As With Double Deluxe you don't install "Nightlife", "Celebration" and "The Sims 2" folders. Continue install your other EP and SP if you have them following Manual Install.

Installing Manually

1) Make sure that you can run the game on high lighting and shadow settings and that your card supports pixel shader 2.0 to get the full effect of the mod. If you can run the game lighting on high then you are able to use this mod.
The mod can used with UseShaders false. You do not need 2.1 or 2.2 to install.

2) back up your userStartup.cheat by renaming it to something else
Found in:
\My Documents\EA Games\The Sims 2\Config

3) Extract into the folders into ALL games that you have. Look in "_Stuff Packs" for SP games extract them if needed.


You have The Sims 2, Freetime, OFB, Family Fun Stuff

Open the .zip
Drag The Sims 2, Freetime, OFB folders from the zip into C:\Program Files\EA GAMES
Yes to replace
For stuff packs go _Stuff packs
And drag and drop in the same spot and replace.

NOTE: If you have H and M or IKEA the folder name in the zip couldn't read the (R) symbol and it replaced it with an r. It is recommended that you move the lights folder manually instead of extracting it.


4) The userStartup.cheat can be done either:

-a) Open userStartup file with notepad and copy all lines from this mod.
Then go to:
My Documents\EA Games\The Sims 2\Config
Open the userStartup with notepad and paste the contents at the top in the txt file.

-b) Extract the userStartup to:
My Documents\EA Games\The Sims 2\Config
This will overwrite everything that's in the file. This can be avoided by following step A instead.

If you find that you don't have a userStartup use method B

Useshaders false

If you have problems running the game with UseShaders on true. You can change it to false by opening userstartup with notepad and editing the line:
boolProp UseShaders true

And changing true to false:
boolProp UseShaders false

With it false, pool shaders and Bumpmapping will be disabled. Fish will disappear if using Seasons.

You would normally do this if your card has problems with 2.0 shaders and experience low FPS(slowdowns) after installing the mod.

Optional Files

Those are optional files that will change my default settings for unlit rooms and objects. This can be ignored if you don't want them changed. I recommend to use my settings first before deciding to change any of them.

pool reflections

RLS-Shaders changes the pool water shaders; don't use with Seasons unless you are playing the game with useshaders false.
This will only work with Nightlife and up.

Extract the RLS-Shaders.package in _optinal Files

My Documents\EA Games\The Sims 2\Downloads

Note: Remove the RLS-Shaders if you encounter problems with it installed.

Unlit rooms

You can choose between darker or bright shadows if you don't like the RLS default. This is how dark it will be in unlit rooms.
The default is balanced between realism and gameplay. Darker will be darker to those of older version of my beta. While brighter will be something close to maxis but greatly reduced.

Open either Darker Unlit rooms or Brighter Unlit rooms in optional files folder

Move the lighting file to:
EA GAMES\The Sims 2\TSData\Res\Lights

For Deluxe:
EA GAMES\The Sims 2 Deluxe\Base\TSData\Res\Lights

For Double Deluxe:
EA GAMES\The Sims 2 Double Deluxe\Base\TSData\Res\Lights

Balance Light Objects

With this file all lamps to be a bit more balanced with each other rather than based on the lights itself and how much light it should be casting. I don't know of other side affects with this besides that objects will tend to be getting much more light than they would of and will start to glow.

Open Balance Light Objects in the Optional files folder

Move the RLS-CustomLights file to:
EA GAMES\The Sims 2\TSData\Res\Lights

For Deluxe:
EA GAMES\The Sims 2 Deluxe\Base\TSData\Res\Lights

For Double Deluxe:
EA GAMES\The Sims 2 Double Deluxe\Base\TSData\Res\Lights

How to Update

If you are a previous user you can just simply need to extract a single folder into you base game to update the mod. This will also work if you installed with the SCRIPTORIUM.


Extract only the Sims 2 folder in the zip into your game dictionary same way like manual install:
EA GAMES\The Sims 2\TSData\Res\Lights

If you using Deluxe or Double Dexlue do this instead:

For Deluxe:
The Sims 2 Deluxe\Base\TSData\Res\Lights

For Double Deluxe:
The Sims 2 Double Deluxe\Base\TSData\Res\Lights

Need more information?
571 Comments / Replies (Who?) - 479 Feedback Posts, 71 Thanks Posts
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Lab Assistant
#551 Old 30th Oct 2015 at 10:22 AM
Which files do you install if you have The Sims 2 Ultimate Collection?
Field Researcher
#552 Old 5th Dec 2015 at 4:02 PM
Imma Simma I would like to know this as well let hope some kind simmer lets us know.....
Test Subject
#553 Old 11th Jan 2016 at 10:35 AM
Imma Simma, Sparky1992 and other users with the Ultimate Collection, there's a thread here you might find useful: (Ovenhole explains it pretty well in post #5)

For any users with the Super Collection for Mac, I've re-written the instructions with relevant paths and folders at my tumblr:

If you'd like me to re-write the text file for the UC like I did there, I'd be happy to help.
Field Researcher
#554 Old 16th Jan 2016 at 12:22 AM
@spallard thank you so much for posting the link regards UC as I am very new to sims 2 but as I am used to using mods in my sims 3 games I wanted to be able to add similar mods that I am used to using but am aware that UC appears to have differing file path to using discs so it has made things somewhat confusing-)
Test Subject
#555 Old 23rd Feb 2016 at 11:26 AM
the link for mac install instructions is broken!!! Can anybody tell me how to install it? Thank you!!!
Lab Assistant
#556 Old 9th Mar 2016 at 6:48 AM
I do love this mod, and I'm suprised that I didn't come over it before. Now that I've used it for some time I have sadly discovered that it has some problems handling wall-mount objects with adjusted hights correctly. Might have something to do with that it was originally developed before AL.

Test Subject
#557 Old 27th Mar 2016 at 6:03 PM
the best mod ever <3
#558 Old 20th Apr 2016 at 10:59 PM
Does it work with The Sims 2 Ultimate Collection? I've had files version, but folder system is much different than that in UC, and I'm not familiar with sp(x) and ep(x) names.
#559 Old 3rd May 2016 at 12:46 PM
Originally Posted by anie_1981
Does it work with The Sims 2 Ultimate Collection? I've had files version, but folder system is much different than that in UC, and I'm not familiar with sp(x) and ep(x) names.

It works perfectly. Use the Scriptorium (I've linked it in my post here ) for super-easy install; mine was done in not even 30 seconds and my UC game looks terrific.
Field Researcher
#560 Old 9th Jan 2017 at 12:17 PM Last edited by AuzzPanda : 9th Jan 2017 at 12:32 PM.
Re-awaking the thread but yeah, noticed it too @Batanau . The worst bit is that even though I uninstalled it, all wall sculptures and paintings are still glitching and completely black when low on the wall, no matter what I try.
Test Subject
#561 Old 15th Jan 2017 at 5:21 PM
Originally Posted by AuzzPanda
Re-awaking the thread but yeah, noticed it too @Batanau . The worst bit is that even though I uninstalled it, all wall sculptures and paintings are still glitching and completely black when low on the wall, no matter what I try.

This bug is sadly something unrelated to this mod and are a fault in the game by default. The only fix for this is to download a mod that lowers the wall decoration meshes so you can manually raise them to your desired height in-game. The downside with this is that if you download a custom lot that uses the deco they will most likely be all down to the ground, making you have to manually fix each one yourself.
Lab Assistant
#562 Old 6th Feb 2017 at 7:45 PM Last edited by emodarkwolf : 6th Feb 2017 at 8:55 PM. Reason: Adding info
So this seems nice, I installed this with The Scriptorium for making the task easier, I enter in my game, load a house and everything looks fine except the swimming pool! I don't really know what happened but the water was all sparkly and with a "weird texture", it didn't seem like water although we could see through it. :s

EDIT: Ok, just unistalled this mod and went back into the game and the same house ad the pool still looks more or less like this... Anyone know why?! O.o
I haven't installed any mod that modifies swimming pools, other mods that I installed with RLS were a couple of clothes, recolours of paintings and Numeror Courtesy Lights.
Test Subject
#563 Old 30th Mar 2017 at 6:09 PM
Truly a great improvement upon the original game's handling of the lighting feature. Great job.
Forum Resident
#564 Old 7th Apr 2017 at 1:49 AM
This is a great mod that improves the game's graphical fidelity dramatically. I wish a similar mod existed for TS4, because that game's default lighting is bad.
Lab Assistant
#565 Old 9th Apr 2017 at 12:07 AM Last edited by enjoysMusic11 : 10th Apr 2017 at 1:48 AM.
For some reason this doesn't work for subhoods. I'm not sure when this problem started happening, but it may have been after I installed Gunmod's camera mod. However, there isn't any reason why that should interfere with this.

EDIT: since I reverted to a backup everything's fine except a few (maybe CC? didn't check) arches in Elsewhere.
Test Subject
#566 Old 30th Jul 2017 at 12:01 PM
With 'useshaders on' the specular highlights are gone, which make shiny objects dull. Is there a fix for this? Since disabling shaders makes my game lag more, according to the description it should be the other way around..
Top Secret Researcher
#567 Old 20th Sep 2017 at 7:05 AM
If anyone is puzzled by how to install this, try with Numenor's Scriptorium, it includes an automatic installation of this set.
Lab Assistant
15th Dec 2017 at 9:52 PM
This message has been deleted by craftyplumbob. Reason: File needs work.
#568 Old 4th Feb 2018 at 5:38 AM
Default Manual Installation for UC
Scriptorium installation works very well, but for those with UC who want to install manually for some reason, here are the files in the UC folder stucture.
Download - please read all instructions before downloading any files!
File Type: zip (158.1 KB, 135 downloads)
Lab Assistant
#569 Old 13th Nov 2018 at 8:43 AM
Incredibly awesome mod. used with the skies of totalitarianism skyboxes now puts the game into an incredible sims 4 type lighting system but without that blue tint you see around objects and buildings. I especially love the sunrise and sunsets. They are beautiful.
I installed it with scriptorium and runs perfectly with no issues and I have the ultimate collection. Everything looks so breathtaking now, even my sims. This mod alone makes my favorite sims game of the whole series even more worth playing. This mod is a jewel. Thanks so much for this. It puts my game into an entirely new perspective.
Test Subject
#570 Old 3rd Feb 2019 at 9:57 AM
Super Collection on Mac
Hello friends!

Sorry to resurrect this post to bother you with more Mac user troubles, but I have perused all the MTS Gunmod Radiance-related posts for instructions that will work for Super Collection on Mac, and it seems the issue is that Super Collection (revived by Aspyr in 2017, purchased only through the Mac App Store) and Ultimate Collection (offered for free on Origin for PC for a while) have completely different file structures, so the instructions provided graciously by such users as @Ovenhole and @rhiamom don't work for Super Collection because there are no visible subfiles for the EPs and SPs. I have attached a screenshot of the file breakdown inside ~/library/Containers/com.aspyr.sims2.appstore/Data/Library/Application Support/Aspyr/The Sims 2/ so you can see what it looks like. If anyone happened to have found a solution in the last few years, I would love to hear it so I can get my game looking beautiful with Radiance Lighting as it once was!!

All the best in retro Simming. Peace & love,
Test Subject
4th Apr 2019 at 4:12 PM
This message has been deleted by wailand. Reason: delete
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