MTS has all free content, all the time. Find out how YOU can help to keep it running. Tell me how...

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
6,412 Thanks  Thanks     1396 Favourited
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

This download has custom installation instructions!

In addition to the normal installation instructions, this download also has a custom instruction, as follows:

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. 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?

Please read to ensure correct installation of this item!

Download files

Filename Size Downloads Date
Gunmod' | Gunmod Radiance Light System 2 .4

Size: 338.9 KB · Downloads: 130,103 · 23rd Jan 2009
338.9 KB 130,103 23rd Jan 2009
BACKUP Maxis | Backup lighting

Size: 263.1 KB · Downloads: 52,489 · 25th Sep 2008
263.1 KB 52,489 25th Sep 2008

Key: - File was updated after upload was posted
Tip: You can click the magnifying glass to see the archive contents

Need help with downloading or installing content? Click here!
553 Comments / Replies (Who?)

Expansion/Stuff packs required:
Sims 2

553 Comments / replies (Who?)



Type: Global Mods

Tags: #Gunmod, #Radiance, #Light, #System, #2.2, #2.1, #2.3, #beta, #Lighting, #Mod, #Hack, #RLS, #RC1, #Realistic