Garry's Mod

Garry's Mod

6,352 ratings
Atmos - Day / Night and Weather Modification
Type: Effects, Addon
Tags: Fun, Scenic
File Size
0.918 MB
Oct 13, 2013 @ 12:41am
Oct 14, 2016 @ 10:19pm
54 Change Notes ( view )

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Atmos - Day / Night and Weather Modification


Update Notes / Changelog
Patch Notes


Garrysmod Day / Night and Weather modification.

This is a complete rewrite of my previous addon Atmosphere for garrysmod 13. It has been coded to try and support as many maps as possible, use the new env_skypaint sky shader functionality and be easier to work with for administrators and players. This is a very early version that is missing some planned features and contains some minor issues.

For the best outcome, the map you try to use with atmos will have a light_environment, env_skypaint, and env_sun, although alternatives are implemented if the first two are not found.

Settings area is under Spawn Menu -> Utilities -> Atmos -> Settings

For the best experience it is recommended that you leave the settings at their default values.

The best way to change the current time is to simply use the DNC Length slider under settings, move it far to the left and watch the time change and move it back far to the right when you reach your desired time. Alternatively, simply use atmos_dnc_settime 0-24 (0 is midnight).

If you enjoy this addon, please give it a thumbs up as it really helps new people find it in the workshop.

Server Commands

atmos_reset - resets all server settings to their default values
atmos_enabled 1/0 - enable or disable atmos entirely
atmos_paused 1/0 - pause time progression
atmos_realtime 1/0 - enable or disable atmos using the servers local time zone
atmos_weather 1/0 - enable or disable weather
atmos_log 1/0 - toggle logging atmos events to console
atmos_dnc_length_day 1-3600 - determines at what rate time progress during daytime
atmos_dnc_length_night 1-3600 - determines at what rate time progress during nighttime
atmos_weather_length 1-3600 - how many seconds weather will last
atmos_weather_chance 1-100 - the % chance weather will occur
atmos_weather_delay 60-3600 - the delay in seconds atmos will do a dice roll to trigger weather based on the weather chance
atmos_weather_lighting 1/0 - toggle the ability for weather to affect lighting
atmos_dnc_gettime - gets the current time
atmos_dnc_settime 0-24 - sets the current time
atmos_startstorm - starts a storm
atmos_stopstorm - stops any running storm

Client Commands

atmos_cl_reset - resets all client settings to their default values
atmos_cl_hudeffects 1/0
atmos_cl_weather 1/0
atmos_cl_rainsplash 1/0
atmos_cl_rainclouds 1/0
atmos_cl_rainperparticle 16-64
atmos_cl_rainradius 16-32
atmos_cl_maxrainheight 16-1024



Known Issues

Problem: Stars Dont appear or skybox looks like its cut in half.
Fix: Update your DirectX and be sure that your video card supports atleast DirectX 9 and Shader Model 2.

Problem: Almost all ground textures are black
Fix: The server needs to increase its DNC Length value, having it too low will cause lightmaps to not render correctly.

Problem: Time does not progress or the skybox doesn't update.
Fix: Make sure atmos isn't paused or that realtime isn't enabled, and if it is not, this means there is a conflicting addon on the server. You will have to find out which addon is breaking Atmos and remove it or ask the author to make it compatible.

Problem: Snow doesn't look like it does in the video
Fix: Enter these console commands to reset their values to the defaults, or run atmos_cl_reset

atmos_cl_snowdietime 6
atmos_cl_snowradius 1200
atmos_cl_snowperparticle 20
atmos_cl_maxsnowheight 300

Problem: The server I'm playing on doesn't have working sounds or materials
Fix: The server owner needs to update their version of Atmos to atleast 1.1 or use the workshop version. You can find the version of Atmos on the server by using the console command atmos_info , complain to the server owners for not using the workshop version of Atmos.

Problem: The settings aren't saving!
Fix: This is an issue with garrysmod's CVAR system (console variables). The best way to avoid it happening entirely is to put your desired atmos settings at the bottom of server.cfg

Future of Atmos

Atmos 2 is currently being developed, and I have been working on it for over a year. It's a complete rewrite of Atmos, made to be much more performance friendly especially for servers. It will have quite a few new features, one of the most important ones being it supports modding out of the box, without any need to edit the addon.

I plan to release more detailed information when it is closer to release, so stay tuned to this page.

How can I support Atmos?

You can support the development of Atmos by donating to the following bitcoin address. Thanks!


Terms of Use

By subscribing or using this addon you agree to these Workshop App-Specific Terms
Popular Discussions View All (31)
Jan 2 @ 9:25am
News on Atmos 2
Nov 8, 2018 @ 1:08am
Black sky issue on server.
Apr 10, 2016 @ 2:28pm
PINNED: Patch Notes
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Bill Assby Apr 3 @ 7:54pm 

I'm not seeing it. I've checked the comments and description box. I feel like it could've been there before but now it's not.
ALLALTITUDE | youtube Mar 20 @ 9:20am 
ok let me try again, i LIKE the mod, i like the idea of it, but could you please, maybe update this, so you can alter all settings right in the tool bar thingy? so you can pause time in the box and move the slider around to set the time of day/night and all that whatnots
xXSALTY_COD_KIDXx Mar 4 @ 5:52pm 
atmos heavy XD
i'm God Feb 26 @ 2:59am 
Баг с ночью, когдща темнеет все текстуры светлые, пока по ним не пройдёшь и т.д
Когда б*** баг фиксы то будут енбврт?
martellgeorge2008 Feb 15 @ 5:35pm 
commands wont work start snow says its not a command [
Handi Feb 12 @ 5:48am 
I disabled the snow but its still
Gaunter Feb 10 @ 6:41am 
Hello, I'm looking for a way to change the skybox of the days, and I do not find the line of code in the init.lua
Handi Feb 4 @ 2:30pm 
where do you put server cvars?
Wgairborne Jan 26 @ 8:29pm 
@Bill Assby And are you addressing this as them stealing it, or just showing us? They gave full credit.