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Lighting Manipulation - Roblox Advanced Scripting #34 (2025) — Transcript

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0:00thanks for stopping by everyone look at
0:01this amazing view with everything we can
0:04see from all the way up here everything
0:06here just looks so nice and you know
0:08what I think this calls for a
0:10celebration now the only thing I want to
0:12say is thank you for reaching this far
0:15into our game development journey and
0:17I'm hoping that we can create really
0:19successful Roblox games for the future
0:22[Music]
0:28cheers all right let's think about this
0:31for a minute this video is going to be
0:32about lighting manipulation which allows
0:34us to change the lighting system inside
0:37of a Roblox game it determines how
0:39lighting appears in a game and how it
0:41interacts with other objects and not
0:43only are we going to be changing some
0:45properties for this lighting system but
0:46we're also going to use scripting to
0:48change it as well and some examples of
0:50scripting that I've done here are these
0:52Street lamps whenever it becomes
0:54nighttime these Street lamps light up
0:56but when it becomes daytime the street
0:58lamps turn off and so that's an example
1:01of using scripting to manipulate the
1:03lighting and another thing is creating a
1:06dynamic day and night Cycle System from
1:08what you can see over there we're
1:09changing the time of day through
1:11scripting to create this little
1:13transition from daytime to night time
1:15and not only that but we also have
1:16lighting objects that completely
1:18transforms the way that a Roblox game
1:20can look and so what I'm going to do is
1:22I'm going to hit stop and show you what
1:24I'm talking about so right now inside of
1:25this Roblox game there's a lot of
1:27lighting objects but if I were to
1:28quickly get rid of all of these lighting
1:30objects then the game looks kind of
1:33bland I'm not going to lie so with these
1:35lighting objects this can really
1:37transform a Roblox game to make it look
1:40as good as possible and so that's what
1:41I'm going to be introducing to you as
1:43part of this tutorial guide while also
1:45manipulating the lighting through
1:46scripting and with that being said let's
1:48go ahead and go straight into the video
1:50now that we understand it let's
1:52Implement lighting manipulation inside
1:54Roblox studio now for the sake of this
1:56episode we're actually going to be using
1:57a template that Roblox has provided to
1:59us called Pirate Island just so that we
2:02can really demonstrate the capabilities
2:04of roblox's lighting system as we change
2:06it so if you want to follow along this
2:09is the template that we're going to be
2:10using so I'm just going to click on this
2:12and it should load up the template just
2:14like so and we can move around freely as
2:17such okay so once we have this template
2:19pulled up we can now change the
2:21lightings to reflect on this map that we
2:23have over here and the place we're going
2:24to do that is in this lighting folder
2:27inside of the Explorer now if we open
2:28this up we can see that there are
2:30lighting objects inside of here so what
2:32we're going to do is take everything
2:34that's in here and we're actually going
2:35to delete it so that we can start from
2:36scratch and the first thing that I want
2:38to show you are some basic properties
2:40that we can change within the lighting
2:43object itself just so that we have an
2:45idea of how we can change some of its
2:47properties and how it affects our game
2:50so we're going to select lighting which
2:52have some properties here and some of
2:53them are pretty self-explanatory we have
2:55a property called brightness which you
2:56can increase or decrease the brightness
2:59uh of the entire game you can even have
3:01shadows if you want so this basically
3:04gets rid of any Shadows if you have this
3:05turned off or you can turn this on um
3:08and then we have other things like
3:09technology which tells us what kind of
3:12lighting system do we want for our
3:14Roblox game because we can have
3:16different Lighting systems depending on
3:18the kind of game that we're creating so
3:20by default it's Shadow map but if we
3:21were to change this to something like
3:23voxel then this places less emphasis on
3:26the Shadows um in comparison to what we
3:29had by default fault and there is
3:30another one called future which puts
3:32more emphasis on certain parts that need
3:34to be brighter or dimmer so that's kind
3:37of what that is and there are other
3:38properties here like ambient and outdoor
3:40ambient which I can tell you what
3:42ambient is it's it's sort of like a
3:43color filter that displays onto the
3:45entire world using a specific color so
3:48if we select this and we pick something
3:50like let's say red and we hit okay then
3:53it's going to have like this red tint
3:56around the entire game and we also have
3:57something called outdoor ambient which
3:59is slightly different than ambient so if
4:02I were to change outdoor ambient to
4:04let's say yellow and hit okay then there
4:06is a difference here so ambient puts
4:09emphasis on places that are indoors like
4:12this little Hut over here so you can see
4:14that this has like a red tint but if we
4:16were to look at our outdoor ambient
4:17which is now yellow we can see that this
4:19places emphasis on lighting that's quote
4:22unquote outside so that's basically what
4:24those two properties do and finally one
4:26other property that I want to introduce
4:27to you is called fog which has three
4:29properties the fog color the fog end and
4:31fog start so fog end is basically how
4:35far away do we want the fog to be in
4:37studs and this is a really big number
4:40like 100,00 so we can't really see the
4:42fog but if we were to reduce this to
4:44something as small as let's say a
4:45thousand then we can start seeing fog
4:48surrounding the entire map now fog start
4:50basically does the opposite where this
4:53is how many studs we need to be in order
4:55for the fog to actually come in so we
4:57can say that this is 100 and we can see
5:00that there's now like a little bit of
5:01space uh between our camera and where
5:04the fog starts and then we have a fog
5:06color of course we can change that to
5:08something different if we want and those
5:10are some lighting properties that I hope
5:11that you'll find useful inside of your
5:14Roblox game and that's basically that
5:16okay so now I want to show you some
5:18lighting objects that we can add to make
5:19our game look better and all of these
5:21are going to be contained inside of the
5:23lighting folder so what we're going to
5:25do is hit the plus sign next to lighting
5:27and as you can see there's a lot of
5:28effects that we can add to our game and
5:31the first one I want to show you is
5:33called Sunrise effect so if we click on
5:35this then what it's going to do is it's
5:37going to add Rays uh or visual arrays in
5:41this case to the sun that's inside of
5:43the game so if I were to delete this
5:45then this is what the sun normally looks
5:46like but if we added the sun rays then
5:48this is what the sun now looks like and
5:50we can change some basic properties here
5:52as well like the intensity of the Sunray
5:55and even the spread of the Sunray as
5:57well and that is basically what we can
5:58do with Sunray now another effect we can
6:01add is called color correction so if we
6:04add this then this gives us some basic
6:06lighting properties that we can change
6:07to make our game look better or to fit
6:10the type of game that we're creating so
6:11we have properties like brightness uh
6:13contrast even saturation and also the
6:16tint color as well but a lot of these
6:18properties are similar to the properties
6:20that are inside of the lighting folder
6:22itself so this is like an added layer to
6:25the lighting properties that we
6:26discussed about earlier in this episode
6:28so another object we can add is called a
6:31blur effect and I think this one is
6:33pretty self-explanatory so I don't need
6:34to go into detail about this one I'm
6:36just going to quickly disable it here
6:38and I'm also going to add a bloom effect
6:41which is basically how our lighting
6:42system responds to very bright objects
6:45so if I were to show you an example I'm
6:47going to go to model and I'm going to
6:48hit part and I'm going to make the
6:50material of this neon and what I'm going
6:53to do with this Bloom effect is I'm
6:55going to change the threshold to
6:58something smaller and as you can see uh
7:01the neon part is now brighter because I
7:03lowered the threshold for it and if I
7:05were to let's say change the size of it
7:07as well then we can see that this is now
7:09even brighter than it was before so
7:11that's what the bloom effect does and
7:13finally I want to talk about depth of
7:16field effect so if we click on this then
7:19what this does is it brings Focus to
7:22certain objects that are close to our
7:24camera and it's going to make everything
7:26else blurry so as you can see right here
7:29my phone Focus here is on this rock but
7:31everything that's surrounding it is
7:32blurred out in the distance and so we
7:34can change some properties like far
7:36intensity Focus distance uh we can even
7:38change things like in Focus radius and
7:41near intensity as well and we have this
7:44little depth of field going on where
7:47whatever's closest to us this is what's
7:49visible but anything that's in the
7:51distance is blurred out so that's
7:53basically what depth of field is and so
7:55I hope that some of these properties
7:56have given you insight to change them
7:58around to fit whatever kind of Roblox
8:00game that you're creating and now let's
8:02move on I would also like to add skies
8:05and atmospheres now to explain what a
8:07sky is it's basically a sky box that
8:10contains six images one for each side of
8:14the game to be displayed inside of our
8:16world so this is the default sky for
8:19every single Roblox game but we can add
8:20our own Sky by either creating six
8:22images and putting them together inside
8:24of a sky object or we could just go to
8:27the toolbox and look for a sky that was
8:29created by the community so if we go to
8:32view and then hit toolbox and we search
8:35inside of model let's say sky then we
8:37can look at all these Skies that we can
8:39put inside of our game so I'm just going
8:41to select this one called neon City sky
8:43and once we do that we can see that the
8:46sky has now changed to be this neon City
8:49sky and there are six images for each
8:53side of this Sky Box and so that's
8:55essentially what a sky object is and we
8:58can also add an atmosphere
8:59to the sky as well by clicking on the
9:01plus sign next to lighting and we're
9:03just going to insert an atmosphere just
9:05like this so an atmosphere supplements
9:08the sky that we've added into our game
9:10to add like this little effect so we can
9:12change things like the density and we
9:14can change things like the offset as
9:16well to see a very slight difference
9:18there and we can even add other things
9:20like a haze effect and even a glare
9:23effect um with these different colors as
9:26you see right over here it's not very
9:28practical for for this kind of sky that
9:30we have over here but you get the idea
9:32this is something that you can add
9:33inside of your game as well and I hope
9:35that you utilize these two objects
9:37inside of your game as well okay but now
9:39I want to get into the scripting aspect
9:41of lighting and the two properties that
9:43we're mostly going to be interested in
9:44are called clock time and time of day so
9:47these two properties are used to tell
9:50the in-game time of the game that we're
9:52currently playing so the way that time
9:55is represented inside of a Roblox game
9:58is through a new numerical value from 0
10:01to 24 and these are represented in hours
10:04so let's say we are at hour Zer so I'm
10:06just going to click on clock time and
10:08I'm going to set this to zero we can see
10:11that we are now at hour zero which is
10:13basically midnight in this case but if
10:16we were to change this up then it's
10:18going to go from 0 a.m. to 1:00 a.m. to
10:212 a.m. to 3:00 a.m. and it's just going
10:23to keep going until it has now reached
10:25morning time and it is now High Noon
10:27which is 12: and then it's going to keep
10:29on going and it's now going to become
10:31nighttime again and then it's going to
10:33go all the way back around to zero so
10:37that's how time works inside of a Roblox
10:39game now you might be asking why are
10:41there two properties to know the time
10:44that is currently inside of the game the
10:46reason that we have two different
10:48properties is because time of day is a
10:5024-hour formatted string that tells us
10:53three pieces of information it tells us
10:56the current hour the current number of
10:58minutes and the current number number of
10:59seconds clock time doesn't really do
11:01that because this is a numerical
11:03representation of the time that's inside
11:05of the game so for example if I were to
11:07change the clock time to let's say 14.7
11:10then what it's going to show here for
11:12the time of day is 14 hours and 42
11:15minutes which cannot be represented
11:17using this clock time uh numerical value
11:20that's over here so that's the
11:21difference between the two and I hope
11:23that that has made sense so with what we
11:25know let's create a day and night cycle
11:27script and we're going to be doing this
11:28on the server side so that the lighting
11:31is going to be changing for every single
11:33player so what we're going to do is hit
11:35the plus sign next to server script
11:36service and we're going to insert a
11:38script now inside of the script what
11:39we're going to do is locate lighting by
11:41saying local lighting equals game colon
11:45get service lighting just like this and
11:48there are two variables that we're going
11:50to create and these are going to be
11:51constant variables with information that
11:54we're going to need for this lighting
11:55script the first one being the time
11:58speed so so how fast is time going to be
12:01moving and that's going to be determined
12:03by this variable which we're going to
12:04call local _ speed and we're going to
12:08set this equal to 300 which we're going
12:10to make more sense of this later but the
12:12next variable that we're going to need
12:14is the start time so the starting hour
12:17that we're going to be starting at so
12:19we're going to say local start time and
12:22we're going to set this equal to let's
12:24say 9 so hour 9 is like 9:00 a.m. in the
12:28morning that's basically what this
12:29represents so we're going to create
12:31another variable but this one is going
12:32to change throughout the script and
12:35basically this one is going to tell us
12:37how many minutes have passed since
12:40midnight has struck and so what I'm
12:42referring to here is if we were to type
12:45local minutes after midnight just like
12:49this and we set this equal to start time
12:53time 60 then this gives us information
12:56about how many minutes have passed after
12:58midnight it might seem a little
12:59confusing to you but let me try and um
13:01explain to you this way so start time is
13:05however many hours have passed since
13:07midnight which as we remember when we
13:09first played the game the clock time at
13:11its earliest time is zero which is
13:14midnight so start time here is the hour
13:179 and because we need the minutes that
13:20have passed since midnight we have to
13:23convert the start time to minutes and
13:26how do we convert the hours to minutes
13:28we multiply it by 60 so that's how we
13:31got this result and this is going to be
13:33useful to us to change the lighting as
13:36we are working through with the script
13:38and I hope that this is making sense so
13:39far so what we're going to do down here
13:41is write a while true do statement like
13:44this and what we're going to do here is
13:46say minutes after midnight plus equals 1
13:49so we're going to take however many
13:50minutes have passed since midnight and
13:52we're just going to Simply add one to
13:54that and with this updated minutes after
13:57midnight we're going to use a lighting
13:59method to update the minutes that have
14:02passed after midnight and so this is
14:04what we're going to do we're going to
14:05say lighting colon set minutes after
14:10midnight open close parentheses and what
14:12we're going to throw inside of here is
14:14the minutes after midnight variable just
14:16like so and what we can do to finish
14:18this off is say task. we and we can put
14:21whatever we want inside of here we can
14:23say 0.01 just to have a very smooth
14:26transition for when we're updating the
14:28time so that's basically our script if
14:30we go into the game and I want to
14:31demonstrate this without the atmosphere
14:33in the sky and all these other uh
14:35lighting objects so I'm just going to
14:36select all of these and hit disable and
14:39I'm also going to delete the sky and the
14:41atmosphere so if we hit test and hit
14:43play then what we should see is if we
14:46select lighting our clock time is being
14:49updated every 0.01 seconds and the
14:52changes are being reflected in the sky
14:54as you can see with the sun going down
14:56and the moon going up and it's going to
14:58keep keep doing this repeatedly as long
15:00as the game is running because this is
15:02all inside of a while true do statement
15:04and that is how we create a day and
15:06night cycle inside of a Roblox game now
15:08if you want to be more fancy we can add
15:10our own weight time variable just like
15:12this we're going to drop a line here and
15:14say local Weight time and we're going to
15:16set this equal to 60 / time speed just
15:21like this and we replace this 0.01
15:25seconds inside of task. wait with this
15:27weit time here with 60 divided by
15:30whatever the time speed was over here so
15:32the weight time would be 60 divided by
15:34our time speed which is up here so if we
15:37have a larger time speed then that means
15:39the weight time is going to be smaller
15:41and smaller so if we were to have a
15:43weight time of 300 then it's going to
15:46run pretty slowly but if we were to have
15:48a Time speed of let's say um 10,000 and
15:52we were to go into the game and hit play
15:55then what we should see is that the time
15:56should be moving really quickly inside
15:59of the game um if we were to just load
16:01up here then you can see that the sun is
16:02going down the moon is going up and it's
16:05going to keep on going just like that
16:06and if I were to go back and quickly
16:09change this to let's say 300 again then
16:12time is going to move really slow but
16:14it's still going to move as long as the
16:16script is running so that is basically
16:20how we create a day and night cycle and
16:22I hope that you found this part to be
16:23useful so to wrap up this video we're
16:25going to create this Street Lamp that
16:28lights up whenever whenever the time in
16:30game becomes nighttime and it's going to
16:32turn off once it becomes daytime inside
16:35of the actual game using our day and
16:37night cycle script so that is going to
16:39be the challenge for today's episode so
16:41I want you to try and create this Street
16:43Lamp yourself before you watch the
16:45implementation of this tutorial and once
16:48you think you've given a fair shot at
16:50scripting this then we can go ahead and
16:52move straight into the implementation
16:54all right so first thing we're going to
16:55do is go to model hit part just like
16:58this
16:59we're going to Anchor this part just
17:02like so this is going to be our pole and
17:05we're just going to extend it out like
17:07this so we're going to rename this to
17:09pole just like so and what I'm going to
17:11do is duplicate this move it up just
17:14like this I'm going to scale it down and
17:18I'm going to move this outward like this
17:23it doesn't have to be perfect
17:25necessarily and now we have a little
17:29light source over here and I'm also
17:32going to make the color of this black as
17:35well to indicate that it is not turned
17:37on right now so this is our little light
17:39post right here so what I'm going to do
17:42is rename our poll to light I'm going to
17:46take the pole and the light and I'm
17:47going to right click and hit group as
17:49model so I'm going to call this street
17:53light just like this and what I'm now
17:55going to do is add what's called a point
17:58light light inside of the light part so
18:00I'm going to hit the plus sign and I'm
18:01going to insert a point light now this
18:05point light is basically what allows us
18:06to give light to a specific part inside
18:10of the game and we can change things
18:11like the range and the brightness of it
18:13as well I I should have explained this
18:15during the tutorial but I wanted to
18:17quickly add here that there are light
18:19objects that you can add to parts inside
18:22of the game to add light to them we can
18:24even do the same thing with other light
18:25objects there's Spotlight and there's
18:27also surface light so I encourage you to
18:29experiment with these ones as well but
18:31for the sake of this challenge we're
18:32going to use Point light okay so now
18:35what we're going to do is insert a
18:37script inside of street light and we're
18:39first going to make reference to
18:41lighting by saying local lighting equals
18:44game colon get service lighting just
18:47like this and what we're going to do
18:50here is we're going to use a change
18:53signal event to tell us whenever the
18:56clock time of the lighting changes then
18:58we're going to basically fire this event
19:00and check if the lighting is at an
19:02appropriate time to turn on the light or
19:06turn off the light so what we're going
19:08to do is say lighting colon get property
19:13changed signal open and close
19:16parenthesis and in quotations we're
19:18going to say clock time colon connect
19:21function open and close parentheses
19:23enter just like this and up here we
19:26should make reference to the light part
19:27so what we're going to do is say say
19:29Local Light part equals script. parent
19:32colon wait for child light just like
19:35this and the first thing we're going to
19:36do is check the clock time to see if
19:39it's night time and we're going to do
19:40this using two checks so we're going to
19:43say if lighting. clock time is greater
19:47than or equal to 18 I I'm going to say
19:5018 because our 18 is generally the time
19:53when it becomes night time hour 17 is
19:55like Sunset so that's why we're going to
19:56say 18 um so we can say if it has
20:00reached sunset or we can say if
20:02lighting. clock time is less than or
20:05equal to 6 because if we remember zero
20:08is midnight and six is like 6 in the
20:10morning um so if we do this then this is
20:14nighttime so what we're going to do here
20:15is say light part. material equals enum
20:20material. neon we're also going to
20:22change the color of it by saying light
20:24part. color equals color 3. from RGB and
20:29from here we're going to select let's
20:31say yellow and another thing we're going
20:33to do is say light part. Point light.
20:38enabled equals
20:39true so this is what's going to happen
20:42if it becomes nighttime it's going to
20:44turn on this um street light but if
20:48that's not the case and it is daytime
20:50then we're just going to take everything
20:51that was here and we're going to set it
20:53back to what it originally was so the
20:55material here is going to be plastic the
20:57color is going to to be black and the
21:01point light is not going to be enabled
21:03so this is basically our entire script
21:05right here so if we go back to the game
21:06I'm quickly going to um disable the
21:09point light that's here and now if we go
21:11to test and hit play then what we should
21:14see is when it's daytime nothing happens
21:17with this Street Lamp but once it
21:20becomes nighttime then it's going to
21:21trigger the Street Lamp to uh change its
21:25color its material and also activate the
21:28point like as well and then it turns
21:30back off once it becomes daytime again
21:31so that is basically how you create a
21:33street light and if we want to make the
21:35light more noticeable we can change the
21:36range and we can change the brightness
21:38of it as well to really see the
21:41effect so if we go back into the game
21:44then we should really be able to see the
21:45difference
21:51now so as you can see we can now see
21:54that there is light being displayed on
21:55the Street Lamp although it is really
21:57really bright but you get the idea at
21:59this point so that is essentially how we
22:01create a Street Lamp inside of Roblox
22:03using our day and night cycle that we
22:04created and I hope that you found this
22:05to be really informative if you found
22:07this video to be informative then I
22:09would really appreciate it if you left a
22:11like on this video and if you haven't
22:12subscribed to the channel I encourage
22:14you to do that if you haven't so already
22:16and if you have done the Street Lamp
22:18Challenge and you have the script for it
22:20then I encourage you to share it in the
22:21comment section so that we can see how
22:23you did it differently compared to the
22:25script that I showed in this episode I
22:27would like to give a shout out to all my
22:28patreon members for their continued
22:30support their support has really helped
22:31me continue through with this journey
22:33and I really appreciate it so if you
22:34want to support me and get access to all
22:36my scripts and other benefits then I
22:38encourage you to become a patreon member
22:40as well the link will be in the
22:41description so that's going to be it for
22:43this episode please check out my other
22:44videos that are on the advanced
22:46scripting tutorial guide playlist and
22:47with that being said I will see you in
22:49the next
22:50one take care

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This page contains the full transcript of Lighting Manipulation - Roblox Advanced Scripting #34 (2025) by BrawlDev, generated from the public captions YouTube serves with the video. The transcript has 4,665 words across 615 segments, with the original timestamps preserved so you can click any line to jump to that moment in the embedded player.

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