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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
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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
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 lighting.zip | Description: Backup lighting 263.1 KB 48,077 25th Sep 2008
Gunmod's_Radiance_Light_System_2_3_beta.zip | Description: Gunmod Radiance Light System 2 .4 338.9 KB 112,667 23rd Jan 2009
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?
Page 4 of 23
568 Comments / Replies (Who?) - 478 Feedback Posts, 70 Thanks Posts
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Field Researcher
#76 Old 12th Jul 2008 at 3:52 AM
I noticed in the installation description that some folders in the /EA GAMES folder get overwritten? I have empty templates, so I'm wondering if this mod will affect and/or overwrite them? Thanks in advance. PS. I plan to use the Scriptorium method of installation btw, not the manual.

"why everything that's 'posed to be bad make me feel so good???" -kanye west
Top Secret Researcher
#77 Old 12th Jul 2008 at 9:47 AM Last edited by fway : 12th Jul 2008 at 10:33 AM.
This may need to either be put in beta 1.5 or 1.4a, when taking photo booth pictures, the pictures become "over exposed" so to speak, or better yet, you get a silhouette of the sim when the photo booth pictures come out.

Test Subject
#78 Old 12th Jul 2008 at 1:34 PM
Wow this mod is really realistic!!! I downloaded it then played a few of my houses and my lighting now is way better than the Maxis lighting. I really enjoy also having dawn and dusk now it looks real nice. And night now is really darker than before, I saw that I have a moon and stars which I never knew I had!

Well thanks so much for this its great, S.R. Home Designs

Have you visited S.R. Home Designs.com? On my site you’ll find my latest home designs, community buildings, and more! So what are you waiting for? Click the link and check it out!

world renowned whogivesafuckologist
retired moderator
#79 Old 12th Jul 2008 at 1:53 PM
daydream_queen - Niol's pond water mods work fine for me. Use this, not in the thread with Targa's stuff. I've got all EPs and have been using this mod and Niol's together just fine. The issue with chris997's mod is also unrelated to this one - you need to turn your view distance in your game options to max, otherwise the skies will look like the default.

my simblr (sometimes nsfw)

“Dude, suckin’ at something is the first step to being sorta good at something.”
Panquecas, panquecas e mais panquecas.
Field Researcher
#80 Old 13th Jul 2008 at 8:13 AM
Update: So I went ahead and installed it manually, and to my relief, it didn't overwrite my empty templates because the mod only alters one folder in each EP...*ahhh

Anyway, cool mod. Thank you.

HP, I am having the same issue you're having with custom lights being way too bright. Have you found a personal work-around for this? I really want to keep my custom lights in the house for decor reasons, but maybe I can turn them off and use Maxis ceiling lights or something? Any suggestions would be very helpful .

"why everything that's 'posed to be bad make me feel so good???" -kanye west
Lab Assistant
Original Poster
#81 Old 13th Jul 2008 at 8:54 AM Last edited by dDefinder : 13th Jul 2008 at 9:06 AM.
it is fixable but when I reduced it, it also further reduced how lights were casting when there are multiple windows next to each other. I'll still be trying to find a workaround for this.

I haven't tried reflective floors yet. The shaders shouldn't be conflicting with each other as they are affecting different things. a least what I know.

Changing sealed room shadows will also affect every other shadow darkness in the game. as I find it best to keep it at the desired setting it is already at. This is a limitation with foundations and decks that are treated as a portal. Lighting on the foundation will not affect the walls above or below it. and are your using smarter lightings?

I may have to readjust the outside night global lighting as well as lamps as they will all get affected by this.

No, but that a great idea.

only thing it gets over written is the lights folder. as long as it came directly from the zip. For custom lights you might have to create a new .txt containing the lights objects lighting profile and have it use lighting profiles from RLS instead. I don't know any easier method than this.

I've tested it and I was unable to get that problem. It was resolved during the pre-beta stage. Re-install the mod and try again.

"High difficulty can lead to Phoenix Down addiction."
Field Researcher
13th Jul 2008 at 11:16 AM
This message has been deleted by pseudonymph24.
Mad Poster
#82 Old 16th Jul 2008 at 1:28 PM
Originally Posted by EpicCheese
Guys like GunMod and dDefinder and Numenor should seriously get jobs with Maxis. This stuff is incredible.

One thing I absolutely LOVE about this mod is the way the outdoor flood lights actually work how they're supposed to! In the screencap there you can see the red lines where the floodlights hit Huge Bill, and the blue lines where they hit the Breadfruit Tree in the background. Previously when I tried to light something big like this up I could light up the knees and not much else no matter how far back I put the light. And the other thing that shocked me is how this mod stops the light from shining BEHIND the light when its pointed in a given direction. Before now it had a normal flood effect like a table lamp but now its really realistic.

One thing I'd like to know is if you could make a mod of these lights (not a global one) so that the light's brightness and intesity stays constant (i.e., lighting up a wall on the third floor from the ground) Not that you have to but I think if you can get this done that's probably just a hop and a skip away.

a potential alternative is to heighten the grid points next to the wall bottom and tops all the way up high to increase such likelihood.
Test Subject
#83 Old 16th Jul 2008 at 11:26 PM Last edited by lovely70 : 17th Jul 2008 at 8:47 AM.
When I go into lots everything is pitch black. I have to put in alot od lights to see. Is this normal? If not how can I fix it?

EDIT: Answered my own question. Changed lighting to high. Hehe, silly me.
The Great AntiJen
staff: moderator
#84 Old 18th Jul 2008 at 9:00 AM
Interesting to see this updated again. I used to use it before Seasons but it was d-a-r-k. Now, however, I have a new computer with lots of RAMz, whizzy graphics card and other high end goodies so I'll give it a try again. I've been meaning to reinstall the Scriptorium anyway. Kudos to you (and Numenor).
Test Subject
#85 Old 19th Jul 2008 at 1:26 AM
i've been trying to extract this, but, for some reason everytime i do, it tells me the file is corrupted. i've saved/deleted the compressed about three times.
Mad Poster
#86 Old 19th Jul 2008 at 5:49 AM

may clear up the cache of your browser and re-download it. it could have been your browser only copied the first corrupted download from its cache.
Field Researcher
#87 Old 19th Jul 2008 at 11:41 PM Last edited by greeneyedsims : 19th Jul 2008 at 11:53 PM.
I have to say I was reeeally nervous about installing this. I've used GunMod's 1st Radiance Lighting mod for the longest...but BOY am I HAPPY I installed this one!

The lighting in my game is phenomenal! The stormy weather looks so cloudy, dismal and gray outside. You can tell it's about to storm.

The lighting is soooo realistic inside and outside my homes. I can't stop taking pictures. I especially LOVE the way my Sims' homes look inside at nighttime, now.

This pic was taken around 1 am. I didn't add any brightness to the pic in PSP, either. Just sharpness. And you can see the light still spills over into the livingroom even though there's a floor edge between the kitchen/living.

I use Smarter Lights with this, and it really looks great.

I'm overjoyed with this mod, thank you SO MUCH!


It's a neighborhood legacy
Test Subject
22nd Jul 2008 at 4:41 AM
This message has been deleted by Love_Struck. Reason: Silliness on my part. thank you.
Test Subject
23rd Jul 2008 at 10:49 PM
This message has been deleted by cheshire_cat.
Test Subject
#88 Old 25th Jul 2008 at 8:49 AM
i think i might have done something wrong with the install or before it
this is what i have in my EA games/The Sims 2/Config : backup Maxis lighting
The Sims 2
The Sims 2 Pets
The Sims 2 Seasons
VideoCapture.ini i don't know where to put the user startup cheat file because i can't find the user startup file
Test Subject
#89 Old 25th Jul 2008 at 8:54 AM
i think i might have misunderstood you do i put it in unknowns.txt ?
Lab Assistant
Original Poster
#90 Old 29th Jul 2008 at 12:56 PM
does AnyGameStarter create its own files the in the ea games? I remember putting the lighting files in there to test it on stand alone expansions. Might have been something else though.
do you have The Sims 2, Pets and Seasons inside your config folder? there not suppose to be in there. I don't know what unknowns.txt as it doesn't use that. Check whats inside of it or delete it. If you don't have a userStartup file you can just use the one in the zip.

"High difficulty can lead to Phoenix Down addiction."
Field Researcher
#91 Old 29th Jul 2008 at 3:33 PM
I absolutely love the lighting in the game, but sometimes THIS happens to me:

Objects black in a room that should be dark (usually occurs after someone exited it)

Any idea why? It's been happening for the past coupla weeks now, usually in the early morning (between 1am and 4am). I mean, it's a minor annoyance because it never lasts that long, but I would still like to nip it in the bud. FYI: I also have the SmarterLights hack installed, and I have every EP up to FT installed. Lighting and shadows are all on high.

Thanks in advance.

"why everything that's 'posed to be bad make me feel so good???" -kanye west
Lab Assistant
Original Poster
#92 Old 30th Jul 2008 at 9:52 AM Last edited by dDefinder : 30th Jul 2008 at 12:52 PM. Reason: TYPO
It seems to be an issue with smarter lights. I've noticed without it, lots will light up on both objects and such correctly. Although you will be losing the effects of the new auto lights. You might want to try it without smarter lights and see if it helps.

"High difficulty can lead to Phoenix Down addiction."
Field Researcher
#93 Old 30th Jul 2008 at 11:15 AM
Originally Posted by dDefinder
It seems to be an issue with smarter lights. I've noticed without it, lots will light up on both objects and such correctly. Although you will be losing the effects of the new auto lights. You might want to try it with smarter lights and see if it helps.

I figured it was probably SL. You mean try it "without" it? I will remove it and see if it helps. Pity though...the hacks work great together.

"why everything that's 'posed to be bad make me feel so good???" -kanye west
Test Subject
#94 Old 31st Jul 2008 at 12:08 PM
i've got it working mostly (i think)
Test Subject
#95 Old 31st Jul 2008 at 12:08 PM Last edited by venum4k : 31st Jul 2008 at 12:12 PM. Reason: posted too soon
pressed the button before i had decided what to say
Test Subject
#96 Old 31st Jul 2008 at 12:09 PM
thank you!
Test Subject
#97 Old 31st Jul 2008 at 12:09 PM
oops sorry
Page 4 of 23

Expansion/Stuff packs required:
Sims 2

568 Comments / replies (Who?)

22 Feedback Posts

1315 Favourited



Type: Global Mods

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