archived-lighting

[night shell]

by taking a gradient (white on bottom, black on top)

giving it a color, and have it alpha blend against the mountains so that it acts like height fog

you can create that material, slap it on a quad and just overlay it over the backgrounds

and since it looks like you have multi-layered mountain backgrounds you can apply a similar kind, at a different scale to help sell that effect

I'll show a quick example of what I mean that I did for a project

[muted tinsel]

Thank you so much for taking the time to do so!

[muted tinsel]

Oh wow

[night shell]

this was an old early VR project, but I faked the scale of the background with just some simple quads and alpha blended gradients with color

and you can see with them in place how much they add to the scene atmostpherically

quick and easy, very art driven

will probably suit your project very well given how art driven it is

there are obviously other solutions one can try of course that are more automated but I don't think they won't work too well with what you are doing

[muted tinsel]

Alright, I will give this a shot! Thank you so much!!

[dusky nacelle]

that's what I just saw last night it's awesome, but I wonder if "blending" between the lightmaps transition is Doable or not?

[pure vine]

It depends on what you exactly want to do, the size of the scene and bake data and day night cycle duration actually

And maybe there is another way for what you wanna do

Can you tell a bit about your game?

Because I also had day night cycle for my realistic game

[dusky nacelle]

actually it's an open world game but Im not using any realtime lights in it because Im targetting from low end mobiles , besides baked light looks more beautiful, so that's why Im trying not to have two scenes seperately rather wandering around the same scene and just having the day and night or afternoon too, in a cycle , and when they swap , they blend instead of just popping out. the video you've provided is really what I needed , because I've seen some more way but those are problematic like static batching wont work , etc. but this one seems no other requirements , just to insert the baked textures in seperate folder and switch . I was just curious if blending is possible or not , like instead of going direct dark, it will gradually go dark lerping.

[dusky nacelle]

cool

[pure vine]

I'm not sure if the process power of low-end devices such as mobile would be enough to blend the textures of the whole world

I guess you should use some kind of chunk system to blend areas only when needed

Did you try to bake Realtime GI?

[chilly kettle]

There is an asset called "magic lightmap switcher" which could support you.

[dusky nacelle]

yeah, that's a point , I think instead of blending that , I can trick with postprocessing

[dusky nacelle]

I know but cant afford that for now

[idle bramble]

Regarding that issue of white spots under the trees - I've double checked and edited in prefab mode. I do have some blue 'overwrite' bars showing but I can't revert/apply by right clicking them like I usually do. Confusing because in the actual scene I get no blue over-rides (3 images below)

Tried creating a new tree prefab with the same fbx, set to double sided in the mesh renderer. Same issue.

[chilly kettle]

did you try deactivating the LOD?
I had similar problems with Trees with LOD, so i killed the LOD entirely.

[idle bramble]

@chilly kettle Yeah I thought it could be that, like perhaps I only applied to one LOD and it wasn't that LOD that was visible in the bake but I've completely removed the LOD component and it still does it.

[oak minnow]

can someone tell me how I can make this area completely dark

[upper fable]

if it's completely closed place (with shadows on) or there's no lights affecting that area, I assume the light is coming from the ambient lighting.

[chilly kettle]

https://www.youtube.com/watch?v=zO2l0Fy7yDw

This is the way to go.

[modest swan]

Hello I have a problem,
I have a gas station model and it has lights,
and I also wanna add some light the problem is that the lights is only like a glowing cube and doesn't feel like a light at all

[chilly kettle]

Do you want to bake the light or go with realtime lights?
If you bake it, you could add an red and blue are light for the long panels and a few small or one big white area light for the rectangular lights.

[modest swan]

you mean by bake the light "generate lights?"

and here is another example,
They look just like a glow block not a light

[chilly kettle]

You have to add light sources to get lights.

[chilly kettle]

yes

but its not just pressing a button, there is a few things to prepare to bake lights

[modest swan]

Well, I tried that and I think I got 10h to bake it ?

[modest swan]

I have a spotlight and point light

[chilly kettle]

How big is your, scene, whats your resolution and texel count?
As i said, its not just hitting a button and it works ^^

[modest swan]

Well not that big and not too small

my resolution is the base 1920×1080
and what is texel count ?

if you have tutorial or a video explain how to bake it perfectly because its my first time using lights in the dark

[chilly kettle]

https://www.youtube.com/watch?v=KJ4fl-KBDR8&t=49s&ab_channel=Unity

[modest swan]

ok I am gonna take a look on it,
thanks.

[night shell]

to answer your question real quick, texel count basically means your lightmap resolution, Texel = Lightmap Pixel

its a bit of a complicated thing because texel count is something that varies in a scene depending on the object.

• You have the "Lightmap Atlas" size, which is basically the maximum resolution for a lightmap (it defines the resolution of a single lightmap texture).
• Then you have things like "Lightmap Resolution", which in simplified terms basically means how many "texels" per unit is allocated for objects. There are a number of factors that play into the amount of texels that would be allocated to an object but that is the general jist

hopefully that answers that little question

[pallid karma]

Been working on the lighting for my scene, what are the differences between all these options?

[night shell]

Contribute GI is the only one that really affects lighting

[pallid karma]

And when it comes to choosing what is static, i recall someone here saying that only large objects tend to be made static to then create a lightmap. So In a scene like this, what parts would be best made static? I know it looks ugly lol

[night shell]

Reflection Probe Static by relation is somewhat related, but its name is self explanatory (basically meaning that if an object is marked as such it will appear in a baked reflection probe)

[night shell]

some of the large walls on the side, mabye some of the crates, the overhang, stairs

[pallid karma]

and would that involve ticking all those options?

[night shell]

no for lightmapping you only need to tick on Contribute GI

you could tick on all options if you wish

but the one that actually affects lightmapping is that

[pallid karma]

right, so most of them contributing to it shouldn't be too bad

[night shell]

the only reason why that advice is offered, is because often times when lightmapping, most people think to lightmap everything but you can't do that because some objects you may have in your scene may be too small or too insignificant to affect the lightmap

and would cause issues down the line (contrbuting to artifacts with low resolution, increasing the amount of lightmaps needed to cover that object when its insignificant which therefore increases disk size/memory usage)

[pallid karma]

I remember a couple days ago someone said that for small objects like decorative books it may just be better to keep them dynamic and use light probes

[night shell]

they are correct

I'll show you a quick example

[pallid karma]

although I don't think any of my objects are really small enough to require that

but yeah an example would be nice, trying to wrap my head around all this has been tough

[night shell]

a shop scene here, notice the checkerboard pattern which indicates the amount of lightmap texels (or pixels) allocated for each object

now generally there are alot of texels allocated for every object

so it means that most objects in this scene have quite alot of resolution in them, and would show lighting details just fine

however...

there are some objects like here

where when you pull up the "Baked Lightmap" draw mode

its hard to see due to the overlaying but these objects are smaller than even a single lightmap texel

so these objects are best left excluded from the lightmap since its not worth spending resources to lightmap it

they are best handled with probes

now I would also like to bring another edge case to that

in that there are sometimes some objects that due to their complexity of their shape and such, are too complicated for the lightmapper to light well

so you end up with a bunch of artifacts and such

note these humanoid figures, and how odd the checkerboard pattern looks

there are visible seams, and the lightmap resolution is not enough to even help resolve those seams, you'll just see artifacts

but... the object is still actually large enough to affect the lighting of that particular spot in a noticable way

so the nice thing that unity has is that you can actually have an object still be "lightmapped" so that it shows up on other lightmapped objects, but you can actually have that object instead be lit with probes so those artifacts don't appear

tldr; you can have an object that affects the lightmap, without actually having that object be lit with a lightmap

its one way to solve a problem, but also one way to save on resources as the object doesn't need a lightmap to be lit

you follow @pallid karma ?

this little option is here btw

[pallid karma]

Believe I might

[pallid karma]

Essentially if something is too small to fit into a lightmap texel it shouldn't be lightmapped

[night shell]

when an object is marked as "Contribute GI static" on the mesh renderer component there is a field for "Recieving Global Illumination"

[night shell]

yes

[pallid karma]

gotcha

yeah I think most of my objects will be fine

[night shell]

and the other edge case I threw your way is that if an object has too many seams and artifacts from the lightmap, but its still large enough to affect the scene in a noticable way, you can still have it be probe lit, but it will be shown in the lightmap so things around the object get lit correctly

but yeah given how simple your scene appears to look, looks like most of the objects in there will show up just fine with little tweaking needed

[pallid karma]

Although the other day I had some crazy lighting artifacts that I could't explain

[night shell]

no screenshots?

[pallid karma]

This was it. Was trying to fix it the other day but we couldn't resolve it

and I lack the knowhow to understand what was actually going on there

[night shell]

aah, yeah in that case its hard to see but could be that there wasn't enough resolution allocated for that object

either that or your lightmap UVs are nonexistent

which is another possibility

the likely possibility in my mind

[chilly kettle]

Can you guys use a thread? 🧵 Im getting pinged every 10 seconds 😄

[pallid karma]

So with the lightmap, I often see the pixels on the floor. What happens then if you have a huge scene that's too big to fit on that texture?

[night shell]

the answer there is sort of nuanced, but multiple lightmap textures are used

its not one single lightmap texture

the only time where that does become a problem, is if your scene is somehow one single unified mesh object

[pallid karma]

what if someone had like a giant open world terrain? Is it simply infeasible to lightmap the whole thing if it's one big mesh?

[night shell]

its not infeasible, the solution is simple

split up the mesh

if an object is too big to fit into a single lightmap, split the mesh apart

[chilly kettle]

please!

[night shell]

my guy, a mute button exists, and this won't take too long to require a thread

[pallid karma]

Well I think I know what I need to carry on anyways

[deft fiber]

Threads should be used for anything taking up more than a few replies
Even if that didn't really catch on

[pallid karma]

Got something else going on, but if the fix isn't simple I'll open one up

Basically, I've got a light here, but as I move around it just sort of vanishes randomly. The light isn't static, and isn't an occludee

[deft fiber]

Most likely pixel light limit per object issue: https://youtu.be/y_vw-jzuNs0

If you only have one light and the vanishing stops, that would confirm it's about that

[pallid karma]

yeah I've got about 5, that sounds like the cause

[shell juniper]

Try using deferred or forward+ if you're on URP

[night shell]

there are a number of ways to fix that issue

1. increase the "per pixel light count" on the pipeline that you are using if you are on forward rendering (as spazi mentioned)
2. split up your scene mesh objects (because its a per pixel lights per object, that is the inherent limitation) you can also restrict the ranges of your lights so that the light doesn't affect as many objects
3. lightmapping also fixes this by just baking light into a texture (but it does mean that the light is no longer realtime)
4. deferred or forward+ also work which would remove that restriction (as kabinet mentioned)

[pallid karma]

I take it my lights also need to have the contribute GI set?

oh my goodness, that definitely isn't right

[night shell]

no, contribute GI is only really for objects with a mesh renderer component

[modest swan]

I added the light source and baked it but still it doesn't effect any object near it

[night shell]

where did you add the light source

when you add light sources that are to be baked you need to be careful of placement, if you place them inside geometry that is baked then they will not show up because they are occluded

[dusky nacelle]

is it really possible to have both Lightmap support and Realtime Pixel Spot light support in the same time in One pass in a custom shader? Please if someone knows tell me

Im making something for mobile where the whole large scene is baked, but we have a torch light and night time ,I want the torch to light up the baked object with pixel light (not the vertex light) costing just one pass in the shader . so basically im trying to avoid diffuse shaders or using two or more pass to do that , as you already know , higher set pass slow down the cpu .
please someone help me out if you are free for some time . Im using Built in RP

[modest swan]

here, and I have them on baked

[night shell]

its not about the placement in the scene hiearchy, but its placement in the actual scene

i.e. the lights being positioned inside geometry that is baked

[modest swan]

they look that they would effect the ground but nothing appear

[night shell]

looks like its inside the lamp mesh

is the lamp mesh itself also being baked?

because if it is, then that is most likely why the light is not showing up

it's because its placed inside geometry

[modest swan]

you mean this?

[night shell]

no, but I'm assuming that is the lamp mesh renderer component and that does answer a question I was going to ask, that being if the mesh is lightmapped and its casting shadows

and in that case it is

your spotlight and point light are placed inside of the light mesh

and I'm assuming these lights are also casting shadows, so given the fact that its placed inside the lamp mesh (which is also able to cast shadows and is baked) it is therefore occluded

sooo... just move down a bit in that example

so that they are not inside of the lamp mesh

[modest swan]

ok I am gonna try that

[night shell]

quick example here that should better paint the picture for you

a baked light

[modest swan]

the left one ?

[night shell]

both are baked

all that is changed is the placement

like I said more than once now, if a baked light is placed inside of geometry that is also baked (and cast shadows) the light will be occluded

and you see there it looks as if the light is not there at all

[modest swan]

oh I get it now

[night shell]

this doesn't happen with realtime lights because realtime lighting isn't as precise when it comes to occlusion events

but with baked lights, occlusion events are more precise. So i.e. the placement of your light matters tenfold

so just make sure that when you place lights, they are not placed inside of geometry (at the very least, placed inside of geometry that is to be baked, and is shadow casting)

[modest swan]

well yea I tried to move it down and it actually works
and I think when I make the final bake it would be better right?

[night shell]

when you make the bake it should work now yes

[modest swan]

and I could add more intensity to make it effect better right?

[night shell]

yes

you can use the light however you wish

the original problem you had was just simply that your light was inside a mesh being baked and was basically being blocked

beyond that, its still a light so just use it however you need lol

[modest swan]

Ok, I get it now
so I need to bake every time I make a change to a light?

[night shell]

if you have baked/mixed lights, then yes

you need to rebake a scene if... (if the scene has baked lights and geometry marked contribute GI)

1. you've moved/rotated a light (or deleted a previously baked light)
2. you've changed the properties of the light (shadow casting, color, intensity, type, etc.)
3. you've moved/changed/deleted baked geometry in the scene
4. you've changed/modified materials on baked geometry
5. you've changed the baked lighting resolution (or any settings pertaining to lightmapping)

[modest swan]

Ok,
and for these settings
it just a graphic settings like it will make the light look better?
so the final bake I put these to high number like 20 to make it look better right?

[night shell]

I think a video tutorial would help you out - https://www.youtube.com/watch?v=KJ4fl-KBDR8&pp=ygUddW5pdHkzZCBsaWdodG1hcHBpbmcgdHV0b3JpYWw%3D

but in short to answer the question, yes

[modest swan]

Ok, Thank you very much for you help.

[night shell]

although personally I don't do things like "final bakes" I set the settings of everything to be what I want it to be (i.e. final)

lightmappers are pretty fast now, so long as the settings are configured correctly. just saves the hassle of constantly having to retweak the settings when you want to see something "final" just work with the final, makes things easier

[modest swan]

OK, thanks for that.

[dusky nacelle]

bump

[night shell]

yes, if its a custom shader

although I don't think you can get a native unity spotlight to show up in the ForwardBase pass, but you can pass in properties of the spotlight to the shader manually and calculate a realtime light that way

[dusky nacelle]

let me explain a bit , actually this unity's default mobile shader named unlit (supports lightmap). everything is okay upto this. but i just need only one realtime spot light or only one realtime point light , working on it while the object is lightmapped . in a single pass. so, I need to use here lambert lighting function?

[dusky nacelle]

I understand this logic, but no one cares to explain a bit more on how to just set up the procedure on that shader itself , im just rushing helplessly for several months

[night shell]

hmm I could try giving you the general process

create a thread here since this is going to take a bit of explaining

[dusky nacelle]

if you kindly do have some time, can you just show an example on that default shader a bit? I'd be sending you rightaway

[dusky nacelle]

umm.. i dont know where to make the thread ^^* , am new here

[dusky nacelle]

Realtime spot lighting on custom shader

[vast tusk]

Flickering of the direction light in the build (HELP)

In the finished build of the game, there is a flicker of light in the game scene, what could this be related to?
Unity URP 2021.3.15f1 and 2022.3.9f1

I have tried different solutions to this problem:

Turning off postprocessing
Turning off all effects on the stage
Turning off fog and other visual improvements

It is worth noting that there are 3 options for configuring graphics:
Low (without shadows and MSAA)
Medium (shadows + MSAA x2 )
High (shadows + MSAA x4)

I noticed that when the lighting turns off and I set the graphics settings low (without shadows), this flicker problem disappears and everything becomes normal.

During the week, I tried different graphics configurations, baking lighting, working with post-processing, porting the project to new versions of Unity, and so on. However, all to no avail...

I also tried profiling using Render Doc and Frame Debug and noticed that when the lighting is turned off, the frame is initially rendered with the lighting turned off, that is, there is no moment that the lighting is present but for some reason it is not rendered.

In the video you can see exactly what is happening with the lighting

https://www.youtube.com/watch?v=pwuXGn6IIXU

[modest swan]

I tried to re generate the UV maps and re import object but this thing still showing up after all tries

[night shell]

honestly that warning sometimes shows up even if you have valid lightmap UVs (or even have unity generate them for models)

best not to worry about it

so long as your lightmapping results turn out ok and look just fine then no reason to break your head off about those warnings

[modest swan]

well kinda,
any object was mentioned in the warning is looking like this and I try to make it static but nothing works

[night shell]

how does your scene look in the baked lightmap view mode?

[night shell]

and you've generated lightmap UVs for it?

[modest swan]

yea,

[night shell]

huh? why is min lightmap resolution set to 4?

thats really low

[night shell]

change the margin method to manual

and the lightmap UVs should change

take a screenshot of the scene in baked lightmap view mode when that happens

[modest swan]

because my scene is a little bit large so i put the resoluation to just 4 to be able to bake faster,
should I increase it ?

[night shell]

just do this

[modest swan]

ok I will try

I am gonna try to bake the lights again and see

[night shell]

its better

but there are still problems, and its because the model is too complex

I can see that its trying to generate lightmap UVs, and its certainly doing it but given the settings you set the model is too complex especially with the resulting lightmap UV setup you ended up with so the resolution for the object winds up appearing very small like your seeing there. So either the settings for the lightmap UV generation have to be adjusted, or we increase the scale in lightmap for the mesh renderers on that car model, increase the overall lightmap atlas resolution for your scene... or just light the car instead with either light probes or a light probe proxy volume

I suppose for kicks you could select all of the mesh render components that are on the car model, and try increasing the "scale in lightmap" property

[modest swan]

it's a little bit complex and has a lot of object and that's the reason I think,
I will try to set the resolution to something like 10-20 and see

[modest swan]

like 5

[night shell]

just play with the values until you see enough resolution on the meshes of the car

[modest swan]

ok I will try that

now it's looking a little bit better, I think if I increase the resolution it will be better

[pallid karma]

So with light probe placement, do you tend to look at the area's the different nodes make and just envelop an area that has similar lighting in one of those triangles?

Something a bit like this?

[night shell]

when it comes to the placement of probes, a probe is a point in space where lighting is sampled. And any dynamic object will use the nearest probe to itself to calculate its own lighting.

so with that said, in your example you only have spots near some kind of mesh where lighting is sampled, and nothing really outside or inside neither. Only near the surface, and from what I can see in your screenshot those are primarily dark points so it means if you have a dynamic object around those areas, the object will be primarly dark even if its in a bright area because you only have probes setup in spots where it is dark or near a surface

with light probes honestly I recomend the usage of something like this https://assetstore.unity.com/packages/tools/simple-light-probe-placer-58290

it will cover an entire area, and you can set the density of it to whatever you wish and it will ensure you have good lighting coverage of an area

just like how you would author a reflection probe to ensure proper reflection coverage for an area

[pallid karma]

My thinking was just to just use them to draw a box around areas of shadow to ensure the lighting in that zone is dark too. Should it be more evenly spaced out? Is my approach wrong?

[night shell]

I would say to keep it more evenly spaced out, light probe placement does not need to be that complicated

hence why I recomend this tool

now granted there are many edge cases where one would want a specific setup of light probes and where you need to watch out for specific things... but honestly with the many projects and scenes I've built over the years, just having something like this drop a grid of probes evenly spaced in an area works just fine 90% of the time

[pallid karma]

right

[night shell]

I will mention a couple of edge cases though

when it comes to probes, avoid placing them inside geometry, especially if no object can get inside of an object.

because the way probes are sampled for objects are very simple, it just samples the nearest one

[pallid karma]

that makes sense

[night shell]

so if an object happens to be near say a shipping container, but you have a light probe placed inside of that shipping container, then the dynamic object will sample its lighting from the probe inside of the shipping container whenever it gets close to it

because again, the logic for probe selection is very simple, there is no occlusion logic

[pallid karma]

That's why I wanted to try and put the probes as close to the edge of the shadow as possible, I need it so that there is a very clear cutoff between light and dark, so I figured that would work out

[night shell]

if that was your intent with the probe setup you created there then thats ok

but just noting that if that was not your intent, and you just want lighting of dynamic objects to be consistent or look like they belong to the enviornment well enough then the grid placement tool I showed you would suffice just fine and save you alot of time and work

[pallid karma]

Gotcha

I’ll experiment with both

[night shell]

basically tldr; it aint that deep bro

lmao

but best to keep it simple unless you are aiming for a specific behavior

[alpine frost]

This shader says that the distortion amount is driven by the alpha value of the ambient color, but the ambient color HAS no alpha value

[pallid karma]

Although that package looks like it automatically puts stuff around shadows

[night shell]

It just puts probes in an array within a space with no knowledge of the lighting or anything

It’s a simple tool, you just drape probes over an area that are evenly spaced and with a certain density that you specify

[pallid karma]

Looks a bit chaotic but this is how I imagined it to work, with the intention to clearly separate areas

[alpine frost]

Still lost on this :(

[chilly kettle]

Looks fine, you could add a few more probes without a problem

[pallid karma]

I just wish I could sort of fake it at times. Like I want the character to look in shadow here even if realistically i'm not

[chilly kettle]

means you have not enough light probes or you didnt bake them

[pallid karma]

could it just be because I have some over the edge of the wall base there so it takes on that value?

if I just have probes by the floor would it assume the whole thing needs to be darker or something

[chilly kettle]

well, you can clíck on your character and see where it gets its light probes from

[pallid karma]

good point

just baking again, will check in a mo

[chilly kettle]

but as i said, you should add more probes

[pallid karma]

just anywhere?

[chilly kettle]

i usually place them every 1 or 2 meter

But a rule of thumb is, that you have to place them everytime when lighting changes..
If you have a shadow, place a probe in the shadow.. and then directly beside it in the sunshine

[pallid karma]

yeah we were talking about this earlier, here for instance i tried to do that

ah, so here he's taking on light from probes outside

[chilly kettle]

weird that this probe is so bright

[pallid karma]

although I was hoping he's take on these ones that are closer

this one too, although it should be blocked by the wall

[chilly kettle]

looks like Light probe ringing

[tight parcel]

Can i make a scenes environment lighting only effect non static objects? it's useful to have so i don't need to place light probes just yet, but if i enable it it seems to light up some static map elements in a weird way

[chilly kettle]

The environment light effects both, dynamic and baked objects

[tight parcel]

Rip

[chilly kettle]

Why do you need to effect only dynamic objects? ^^

[tight parcel]

For ages i've been using it to just light the dynamic objects so i don't need to set up light probes while i'm developing mechanics but i should probably just set them up at this point

[chilly kettle]

you can use the unlit view in the editor ^^

[pallid karma]

Don't suppose this is too much is it?

[night shell]

you could throw a light probe proxy volume on the character

so they can pick up more than one probe

[mighty sedge]

can anyone explain why light is bleeding through the edges, the environment is modular.

[chilly kettle]

Is it baked or Realtime?

[mighty sedge]

baked but the door and window is dynamic

rest is static

[chilly kettle]

Okay.
So baking modular pieces mostly comes with problems and seams between the modular geometry.
In your case it looks like you also dont have generated lightmap UVs i guess or a very low resolution.

[mighty sedge]

I did use unity's generate light map uvs checkbox but, would i get better results if i made my own. is there anyway to overcome the issues with the seams. also thanks for the quick response

[chilly kettle]

No, for your case the unity generated UVs are perfectly fine.
Can you show the baked lightmap in the debug scene view?

[main wolf]

you can just sample the color from lightmap and apply it to your characters
you'll just need to make it readable first after baking

[dusky crater]

I posted this in unity talk first but I was told to post this here, anyways I have a weird lighting problem, some of the lighting is low quality and Low poly? I guess

[chilly kettle]

waht kind of lights do you use

[dusky crater]

Spotlights with realtime checked on

[chilly kettle]

in your URP Asset Settings, do you have Main Light set to "per Pixel?"

[dusky crater]

Uhh idk, I’ll check

I don’t think I’m using urp, because I can’t find those settings, either that or I’m dumb

[chilly kettle]

Go to Edit > Project Setting > Quality > Render Pipeline Asset

[dusky crater]

Alright I fixed it, and yes I do have per pixel on

[chilly kettle]

What was the Problem?

[dusky crater]

Yeah it was, thank you

[stark tulip]

Why does light reflect like this? I don't really get it, the place around the player is much more darker and has more shadows, but further points (when the player even moves) has much more light and reflection.

[young flume]

What's wrong with my shadows?

Quality is set to max

[west zodiac]

guys, can someone please help me with my lighting processing?

I can explain my problem with vc and screen share

I would really appreciate it

[median vine]

🙏 I am getting issues with the corners and edges of my mesges when using bakery lighting, I'm getting weird colors and glows. Here is my steps

1. Open blender, make a cube using the solidify modifier that is hollow on the inside.
2. UV Unwrap it using Smart UV Project & setting a margin of .030
3. Importing it into unity, selecting "Generate Lightmap UVs" for the prefab and setting it to the correct lightmap resolution.
4. Place down the prefab, add a light inside of it. And bake using bakery with these settings.
5. Notice weird colors in the corners & some darkened edges.

It's like these are somehow unwrapping themselves and getting their own uv edges according to the checkerboard view

If anyone could help that would be wonderful, it's a different set of issues than previously and the previous fixes are not working.

By upping my samples to 50 the issue seems to be gone / dialed back

[night shell]

Note when you import into unity and select generate lightmap UVs you are actually overriding the UVs you created

Well specifically the UVs in channel 1

[median vine]

Oh? The issue didn't seem to be fixed by disabling / enabling that, it just managed to go away when raising samples

Actually the issue didn't seem to change at all when changing that setting

[median vine]

It seems to be being caused when two game object's faces share the same space, if I put this cube next to the wall and render the lighting it causes the issues. However if I back off and shrink the cube a little bit away from the edges the lighting renders properly

[night shell]

do you have "Double Sided GI" enabled on your materials perhaps

[median vine]

I do not, would that be something to try enabling?

Actually I cannot even enable that

[night shell]

no it needs to stay disabled if it was on

[main wolf]

you can try to decrease shadow distance, or use shadow cascade

[median vine]

Nah yeah it's disabled and can't be enabled I don't know why bakery throws such a fit with faces being inside of eachother even though they are different UVS

And its not like I can't just not have the faces together as it looks odd if they are seperated

[night shell]

unfortunately I can't help much since I don't use bakery myself so that is about all I can say really. Whatever is happening there seems very specific to bakery and its quirks

in the regular unity lightmapper such problem would be due to that "Double Sided GI" issue, or even UV padding for lightmap UVs (whether authored by hand or auto generated by unity)

[deft fiber]

You may have some fog in your scene, but this may also be a side product of texture mip maps
Are you also using some kind of post processing or special shaders, such as posterization?

[median vine]

blud is that real life

[modest swan]

I am getting this weird effect when I am using my flashlight which a realtime light

[chilly kettle]

what do yoú mean?

[modest swan]

When i move my flashlight to the gas station it glows too much like in the photos,
any other object has no effect on the light, just this

• the flashlight is better to be realtime right?

[chilly kettle]

Yeah Flashlight needs to be realtime.
You should adjust your Bloom Settings or decrease the intensity of the flashlight

[modest swan]

ok I will try

yeah it was from the flashligt intensity, thanks

[polar carbon]

could anyone help a homie out with a shadow issue? shadow is cast on the door, have tried adding a composite shadow collider to the floor tileset. Goal is for the light cast from the lantern to stop at the floor and not go "into" the floor

basically just want the light to halt at the top layer of the floor tileset

[mellow pilot]

I used GeNa Pro to make roads and it seems at the intersections the road is created in a way that gives me bad baked lighting on the road.
anyone use GeNa and encounter this issue?

[pure vine]

can you show the shadow caster of the door? it's been a while I didn't use 2D

I believe you can select layers to effect

oh sorry you want the light to stop, not the doors shadow. but you can also select layers for light too

[chilly kettle]

You probably have no lightmap UVs on your road there?
Never used your tool, but is there a functionality to create them?

[polar carbon]

I will look into this

[native crystal]

In my game the player has the ability to turn lights on and off and something else also has the ability to do this too, is there a better way for performance than keeping the lights on realtime?

[pure vine]

how many light are there and all the light turns on and off at the same time?

[native crystal]

As of now there are 18 point lights and occasionally all of the lights will only turn off at the same time but never on

[runic quarry]

I'm aware that this studio has their own custom proprietary software, but does anyone know if there's an existing package or tool that can do light painting like this? Near the end of the video they can also paint manually with a brush https://youtu.be/Q83ocErRk7E?t=257

I'm actually making a 3d isometric game, but I would like to paint the light by hand rather than using the 3d lights

[pure vine]

if there is not too many options about lights, you can switch between bakes

I mean if it's like;
1- lights are off
2- lights are on
you can use switching light bakes

but if you can turn on and off each of the lights there will be too many different light bake options

https://youtu.be/2dsGZt-kBAk?si=c6Ss6PJfYuA9UItw

[native crystal]

Yeah this is the problem I am thinking of. Thanks anyway!

[pure vine]

then I guess you better use real-time GI

and do you see them all at the same time?

you can also fade a light when it gets far

[native crystal]

You cant see them all at the same time as they will be in different rooms

[native crystal]

I do have LOD set up so I guess when It gets to a certain distance I can remove the light from the model

[lavish stone]

hello , I've encounter weird behavior from unity look at this GI lightmap , it is okay but I've changed some unity settings then bake it again then second screenshot is what it looks like ... when I tried to make it back to the default settings , it still doesn't change at all! !!

I changed the lighting data , tried to clear the catch GI and returned quality settings to highest again still doesn't change after baking it looks like the third screenshot in the scene view but in game looks like the second one which is really bad

[mellow pilot]

i would have to look a little harder to confirm, but i don't think i seen anything like that.
but I fixed it by exporting each intersection out of unity and into blender then unwrapped uv there.
that seemed to do the trick

[runic quarry]

bump #archived-lighting message

[livid stump]

Why there's a gap in my shadow?

I wonder why the other side is dark, even tho it is set to both face

[chilly kettle]

Check the Normal Bias of your Light source to avoid this

[livid stump]

I tried checking that, but that's the limit

[chilly kettle]

Yeah, but the bias isn’t changed there.

Change it there to manually or change it in the renderpipeline asset settings

[livid stump]

aight, thanks!

[timber lichen]

trying to get emissive objects to cast light on a scene but it doesnt seam to be working, ive set both objects to static

[pure vine]

did you bake the light?

[timber lichen]

I'm unsure

[pure vine]

you should use either baked GI or real-time GI which you should bake

emission can't cast light in real-time

[pure vine]

does your emissive objects move?

or its always static

[timber lichen]

Well they are gems the player collects, they get deleted whenever the player hits them, but other then that they don't move

[chilly kettle]

in your case i recommend using a point light and placing it into the Gem

[timber lichen]

Would that get deleted with the gem?

[chilly kettle]

sure, why would you like to have light from a gem thats already deleted? ^^

place it as child of the gem and if you delete it, the light is gone

[timber lichen]

Ah got it thanks!

[timber lichen]

heya, so ive been placing collectables around one of my game's levels. these collectables have a pointlight attached to them which causes the area around the collectable to glow.

however after placing a few the lights begin to stop effecting the collectables surroundings, what can i do to stop this from happenng

[main wolf]

you've hit the maximum pixel lights count. It's 8 for URP Forward, and (cmiiw) 32 for URP Forward+

[timber lichen]

ah damn, is there any way for me to increase it?

[main wolf]

You can try to use URP deferred rendering
https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@12.0/manual/rendering/deferred-rendering-path.html

[timber lichen]

oh? what is it?

how do i enable it?

[timber lichen]

i made the asset and set it to deferred rendering, what do i do with it now?

[main wolf]

Why not just use the previous one and just change the rendering path to deferred?

[timber lichen]

the previous one? i dont think there was a previous one

found the original

it worked!

[chilly kettle]

https://www.youtube.com/watch?v=y_vw-jzuNs0

[timber lichen]

yeah this is the exact issue i was having!

[chilly kettle]

i added some additional stategies to solve it in the video

[solemn flicker]

I am attempting to bake lighting for multiple terrain chunks. I have an automated system that basically loads a terrain chunk, plus the 8 terrains around it, plus secondary objects (trees, plants, etc.), then bakes the lighting for the terrain and some of the secondary objects.

However, when doing this I keep getting seams between the light maps of neighboring terrain chunks, even though all of the same terrain/secondary objects are taken into account when performing the light baking for each neighboring chunk.

This is with a Max Lgihtmap Size of 2048 and Lightmap Resolution of 20 texels per unity. I first tried with lower values, and these higher values do "help" mask the issue, however it seems like they don't completely eliminate it.

[glossy goblet]

Wtf where are the shadows ? i use urp also shadows are selected on

[chilly kettle]

possibly your trees dont throw shadows ^^

[arctic isle]

What is the reason for loading them in chunks like this? The lightmapper will already attempt to bake them in chunks for memory reasons.

This will differ based on the version you're using. U6 / 2023.2 has by far the best memory management. I also think we fixed this issue in that implementation as well but that should be when you bake it all together. Is that not possible for you?

[solemn flicker]

Hey, thanks for responding. I have a streaming product on the asset store that is based around working with smaller sized "asset chunks." These are dynamically streamed in and out on demand in order to create large complex game worlds.

Loading all chunks into the editor for baking is possible, however even if I do this I still get the light seams between terrain chunks.

[arctic isle]

Hey, unfortunately for this case there is no out-of-the-box solution that we offer. The only way to mitigate this right now is to place objects where you see the seams to cover it up. I understand that this may be difficult to do with procedural content, depending on the setup. I posted this internally and there seems to be interest for us to have some solution for cases like this in future releases.

[solemn flicker]

Ahh ok, that's understandable. I really appreciate your time, thanks!

[tight parcel]

Is there a way i can toggle lighting when built? almost like the unlit view option in the editor

[pure vine]

you just wanna turn the light off?

[tight parcel]

Essentially

Light everything the same, like there's no lighting at all

[pure vine]

doesn't it work if you just disable the light of set the intensity to 0?

[tight parcel]

It's baked

Also then it would just be pitch black

[pure vine]

you can switch bake light data in run time

maybe that works?

or maybe using post process effect?

you can lower the post exposure value and it will be dark

[main wolf]

I can think of several ways to do this, but all of them arent tested yet

• using camera renderwithshader or setreplacementshader, replace the shaders using unlit shader family
• setting ambient light to white, not sure if it will work though...
• manually edit the shader to make some kind of 'flag', this could be tedious if you have a lot of shaders

[tight parcel]

Hmm i'll probably try the first one

Also, is there a way to change the baked darkness level so that it's not just completely black if there's no light? it makes it kind of annoying for gameplay

[chilly kettle]

Bake a bright scene and make it darker by postprocessing for example

[arctic isle]

Unassign the lightmaps from the mesh renderers

[arctic isle]

You can probably achieve this with the exposure settings on the camera/postpro

[supple coyote]

hello, is there something I can do with "flickering shadows" but only on skinned mesh objects?
Im using urp

I have soft shadows, 2k-4k res

[keen finch]

Does anybody know reasons why my cameras transform might change the shadows?

[chilly kettle]

possibly near plane setting

[chilly kettle]

On your Light

[raven jewel]

Hello. Does anyone know why the right shelf will not light up in my scene? The shelf on the left lights up OK via the spot lights. But the other shelf does not, even though they are the same kind of spot lights.

[chilly kettle]

Is it baked?

[raven jewel]

yes. all lighting is baked

[chilly kettle]

Did you hit generate Lightmap UVs in the import Settings?

[raven jewel]

When i first loaded up Unity, I dragged and dropped my model into it. I then clicked on the model icon, and clicked the generate lightmap UV's

[chilly kettle]

means this is all one Model?

[raven jewel]

Yes, I craeted this entire bar scene using Blender. I saved that as fbx. I then dragged over the fbx file into unity

However, i can select the different objects inside my model

This is me selecting the copper trim features

[chilly kettle]

Okay. Your console says, you have overlapping UVS.
Check here they are by selecting "UV Overlap" in the Scene Debug View

[raven jewel]

OK. I will just google how to see the debug view

not done that before

[livid stump]

Why is my lightmap baking forcing my UV to look like this even tho both my UV and my secondary is good

[gaunt jay]

@weary remnant I'm doing daylight cycles in my game and I need to enable the Enlighten Lightmapper for it to work. However, the Lightmapper option doesn't show up. Can someone help? (I'm Using URP)

[night shell]

haven't used URP but I believe it still does have support for it, and the option in new unity editor versions also has changed

you won't find enlighten as an option under the lightmapper to use since its moved, but you will find it here

its moved to its own unique area in the general lighting settings for the scene

realtime GI is enlighten

[gaunt jay]

thank u man!

[chilly kettle]

im quite sure that the mesh you selected here in the middle part of the light map is not UVed correctly

You may not have a correct UV in the UV1 Channel or not checked "generate lightmap uv" in the import settings of this model

[livid stump]

Both my UV is correct, and generate UV is checked, some same mesh with same material is baked properly but this asset only is not

[terse thunder]

Hi all, is there any way to bake lightmap on transparent cutout object.

[deft fiber]

Transparent or cutout? You don't usually need both

[lapis chasm]

...W baked lighting or what...

how does one fix this lighting proble,,, the rest of my map looks fine

well

i say fine it looks like really bad baked lighting

tun of light leeking...

[scarlet geyser]

why i dont see baked shadows on a floor?

[night shell]

not too sure what your issue here is exactly, but I'm assuming it has to do with the trees looking very choppy and such

first thing I would make sure to do any time you lightmap is to ensure that for whatever models are being lightmapped, that you have "Generate Lightmap UVs" enabled in the model import settings when you select a model in the project window

[night shell]

the light "leaking" that you are seeing here looks to actually be a problem with the lightmap resolution

you need to increase your lightmap resolution to allocate more texels (NOT the atlas size, the lightmap resolution, both are different despite their deceptive names)

[night shell]

not seeing baked shadows on the floor is due to a number of reasons, in your case it looks to be that you are wanting to bake what looks to be the sunlight that is casting those shadows. But it is set to "mixed", so its casting realtime shadows. By default unity also likes to set the Mixed lighting mode to "Baked Indirect" which means that if you have a mixed light, it will only bake the "indirect lighting" and it won't bake any actual shadows or "light" coming from that mixed light source

so tldr; your light is probably set to mixed, and you have your mixed lighting mode configured to "baked indirect". You need to switch it to either shadowmask or subtractive

[scarlet geyser]

it's subtractive

[night shell]

ohh wait I had the screenshots switched in my mind, you were actually showing the baked lightmap view my bad

its likely due to the shader that you are using, or the material on that surface

[lapis chasm]

its the lighting... *its booty and idk why)

[lapis chasm]

okay

[night shell]

I know you mean the lighting, but with your tree models I can see that they are very low poly and sharp, and the lightmapper is lighting it best it can but the model is just very low polygonal and sharp

[night shell]

like I mentioned though make sure that lightmap UV generation is enabled for the object

[lapis chasm]

yh ik its cus im trash at modeling 😭

[latent ether]

i use unity 2022 urp, when i bake my light (in this case just an directional ligth with mixed mide) the scene looks like this after baking and when i turn off the light https://gyazo.com/c226f8ff4abff2abc65a79f537f808f8 any idea why it always have the bright borders on the mountains?

[chilly kettle]

Are your Mountains leaking through the ground? Or is it one mesh?

[latent ether]

its just a terrain

with sharp edges for the mounts

like using max opacity and paint it with set height

[chilly kettle]

Hmm, i have no good idea what it is. (Could be a problem with the normals)
Did you check how the lightmap looks like, just to have a clue where this bright edge comes from?

[latent ether]

its first time working with light baking

where can i check it?

[latent ether]

thx i will check it

[deft fiber]

If you turn off a mixed light after baking, you'll still have the baked indirect light from it, which here looks to be the light bouncing between floors and walls where they meet

Mixed lights aren't meant to be turned off for this reason
you should instead use a realtime light

[latent ether]

so in my example i use the directionallight which its intensity goes from 1 to 0.1 day/night should always be realtime?

[deft fiber]

Yes

[latent ether]

ohh got it

[deft fiber]

You won't get any baked lighting from it, but baked lighting cannot practically be changed at runtime anyway

[latent ether]

ok but what i not understand is. when i use for example a point light mixed. the bake the light. i will bake the light to objects which are marked as static and dynamic objects like players etc also still works. but then for what is the baking for? i mean wehn use the same like also for realtime then the calculation for the static object still exists?

[deft fiber]

With baked type lights the baking process calculates indirect bounce lighting and saves all their lighting as lightmap textures
With mixed type lights baking saves indirect lighting as lightmap textures but keeps direct lighting as realtime
The purpose of this is to get a higher quality result, as realtime lights lack indirect lighting, but lightmaps cannot do direct lighting very well

[latent ether]

so when i use mixed for a point light for example its not less heavy?

its just a increase of quality

but same calculation

[deft fiber]

Mixed lights are more expensive to render than either baked or realtime, because they include both parts but also can use extra calculations to combine the results better

[latent ether]

ok that make sense. thanks for clarify

i will check it again with my issue

[deft fiber]

Do you have a specific purpose for baking lighting in your case?

[latent ether]

one map is a cave with crystals. every crystal has point light on it. so its really expensive for realtime calculationl so thats why i baked the light there

for outdoor maps actually i dont have any specific purpose but i wanted to play with it to make the map looks better

its a 1kx1k map and maybe in future i will have alot over static lights all over the map. so thats why i want to bake it too

so the other question is. when i have a point light which dont cast shadow. what is more performant. baking it or use realtime

[chilly kettle]

Baking is always more performant.
Baking light just increases the size of your game, while realtime increases the performacne you need at runtime

[deft fiber]

It's a good plan, just make sure to set as realtime any lights that need to move or change

[latent ether]

those stuff are all static objects so i set the light to bake only. for an indoor map (my game is top down anyway) should i remove skybox and use color? or what do you recommend?

[deft fiber]

If your scene is entirely indoors, you'll probably want to use a black color as the background and ambient light source

[chilly kettle]

https://www.youtube.com/watch?v=zO2l0Fy7yDw
I did a tutorial video for indoor lighting

[latent ether]

nice i will check that

thank you very much for all the help

https://gyazo.com/fc9f6c5e151e84de630ecb9cd0b97e94

i tool the settings from another video

is it good?

[chilly kettle]

realtime GI like you have there is maximum expensive. Its calculating the bounces of light in realtime.

[deft fiber]

I don't recommend having Realtime GI and Baked GI enabled at the same time
Or at least you should learn to use them separately and test them separately because they're very different systems

[latent ether]

so better to use it without realtime global illumination

is this a good approach using one directional light set to baked just to bake all the shadows/lights then use another directional light in realtime for the brightness like https://gyazo.com/4f1061bac4d6d0f27450538cb62d8d74

and disable cast shadow

when i understand it correctly it should increasse performance alot

oh wait no that make no sense. then even dynamic objects dont have shadows anymore

[chilly kettle]

what you described is a mixed light ^^

[deft fiber]

I'm confused why two directional lights, indoors no less?

[latent ether]

sorry the indoor scene was just the demonstrate. i mean for the outdoor scene

[latent ether]

yea but then i have the issue i described above. when use directional light mixed then use it for my day night. when but intensity to 1 all the borders from terrain are brighed up

beacause of reflection or so

[latent ether]

for the indoor scene i will set the directional light just to baked. it looks pretty good

[deft fiber]

If you bake a directional light, then you will also have a directional light at night
That can be utilized for style reasons but usually you'd let environmental lighting do the ambient light

[latent ether]

ok i will play a bit with it

[raven jewel]

Hello. I am trying to bake my lights in my scene. But it just gets stuck on about 45%. Even after running for hours. Does anyone know how I can find out what is going wrong here?

[night shell]

Check the console if it’s spitting out errors

Or anything

[raven jewel]

There are console errors

[night shell]

Show us

[raven jewel]

Gets stuck like this

[night shell]

No errors in the console

Intresting

And unity doesn’t try to switch you back to the CPU lightmapper?

[raven jewel]

I craeted this scene oringally in blender. Basically it is a garden bar. inside there are various point and spot light. and has a sun outside. This is view before bake

[night shell]

Because unity would only freeze under a couple of instances that I know of

Either 1. You have a problematic mesh in your scene that the lightmapper is struggling with

Or 2. Your light mapping setup (the lights, amount of objects being lightmapped, and light mapping quality settings) is too intense for your GPU to handle

I would start by unmarking every contribute GI static object, and start by marking some objects back as contribute GI little by little

If the lightmapper struggles to lightmap your scene even with a small set of meshes then that means something else is at play

[raven jewel]

Due to my skills. probably likely. But i am not sure how i would identify such a mesh. Most my meshes are created from simple shapes. But i do have more complex objects like drinks bottles

[night shell]

@raven jewel

Unmark everything, then mark some objects back, do a lightmap, if it works then press on

If it doesn’t then there is something else at play

[raven jewel]

OK. when you say unmark. does that mean remove static?

[night shell]

Yes

[raven jewel]

does remove static mean it wont get lightmapped, therefore i can find the problem mesh

[night shell]

Remove static means it won’t get lightmap yes, but also no

I’m asking you to unmark everything, then remark certain objects little by little

Because unity isn’t telling you what mesh could have a problem

so basically just wading through the dark, marking things as static little by little (1 or 4 objects at a time) until you hit a hiccupt

if the lightmapper gets hung up even on one small mesh object then that means there are issues with your lightmapping settings, or probably your GPU

[raven jewel]

Thanks . I will try this

[raven jewel]

I did get this error, after reducing the amount of static objects

do you think this is the source of my issue?

[night shell]

those are not errors, those are warnings

the first one is more damning, its basically telling you that the scene your trying to lightmap is too big to fit into gpu memory, so you need to optimize

the 2nd one is something you can actually ignore

[long glen]

Hey, any clue why I have this random smog? I've added more directional lights and it doesn't seem to get rid of it :(

[hybrid estuary]

Do you have fog enabled?

[latent ether]

when i bake the light. could it be that that ambient light no longer works? in this case i change ambient color but only the bushes ambient color is changing https://gyazo.com/9f3aa20dfecb2de71e8448f9e6947219

if so how should baking working so that i can use ambient light at runtime?

[runic quarry]

bump again #archived-lighting message
perhaps is there a way to light paint using unity's lightmapper? As far as I know it generates textures automatically, it shouldn't be too far fetched to simply paint lights by hand rather than simulating it

[chilly kettle]

If you bake light, the ambient light is baked too

[latent ether]

So i think baking light is not the way to go when using dynamic day night system

[raven jewel]

Why does my baked lights not look like my baked lights? Baked lights appears brighter then real-time

[coarse bison]

So I'm having a problem with lightning,I put standarn shader for some materials to make them look more metallic,but when I get a little bit far away from the Point Light it's like it dissapears

[coarse bison]

It should look like this

[chilly kettle]

Because baked lights bounce.. you cant compare realtime and baked

[chilly kettle]

do you have several light sources in your scene?
If yes, try this: https://www.youtube.com/watch?v=y_vw-jzuNs0

[coarse bison]

Yes

[raven jewel]

What is the best way to achieve the lighting effect i want. Do i just adjust intensity and bake, then see what the result is. Then repeat until it looks how i want

[steady lance]

Should I use mixed lighting or something like this for baked object and not baked objects?

[coarse bison]

Thank you

[timber lichen]

Hello guys, i'm new to Unity and i was wondering why i can't make my grass looks good? It's always looking like this no matter what grass from other assets i'm trying:

[chilly kettle]

add 100 times more gras 😄

[chilly kettle]

yep

[raven jewel]

Why is my environment getting baked inside my building?

[night shell]

I'm assuming you mean why is your skybox environment getting "baked" inside of your building

and that is because you haven't put in a reflection probe in that space to properly approximate the reflections of the interior

unity by default will fallback to using the skybox as it's reflection if not enough data is provided for certain areas. So in your space there you need to author and place a reflection probe that matches the bounds of the interior, and then your reflections/color and general shading will look alot more correct

[raven jewel]

The thing is. I do have a reflection probe in that room

[raven jewel]

Oh. actually do i need to set reflection probe as static?

[night shell]

no you don't need to

what does your reflection probe texture look like

it should show you in the inspector when you click it, there would be a preview on the bottom right

[night shell]

the placement of your reflection probe is off, its clipping through the ground and showing the outside underneath

[raven jewel]

should the reflection probe box be inside my building. or should the whole room be inside the box, including the outer room walls

[night shell]

well there are a couple of problems here so hold your horses, first thing I want to ask is, is your environment all one single mesh? @raven jewel

[raven jewel]

the environment is a cube map hdr

[night shell]

I'm talking about your level geometry

[raven jewel]

the outside of the building consists of grass, fences and an image of a house, they are not joined together, and on there own object meshes

[night shell]

so its all seperate meshes, good to know so that eliminates one posibility

[night shell]

first thing I would do is fix up the reflection probe capture here

the capture point of that reflection probe is in a wierd spot and is clipping with the ground

[night shell]

to make sure that the capture point is dead center in the bounds of the reflection probe is to remove the box offsets and set them to zero on the reflection probe component

this will shift the position of your reflection probe, but just move it back to its proper spot using the transform position tool, but the box offset must remain set to zero

[raven jewel]

ok. Alot of youtube guides tell me to adjust the box size, which i guess is the offset

[night shell]

the box size is the box size

the box offset is the box offset

[raven jewel]

i have done that, and moved it back

[night shell]

and in your case its set to zero so its good

rebake the reflection probe and the reflection should be a little more accurate

[raven jewel]

i wasent, but i done what you said

[raven jewel]

should i expand the box, so the whole room fits inside it

or does it not matter

[night shell]

you could yes, but before you do that increase the importance value

[raven jewel]

what does that do

[raven jewel]

increasing box size increases offset

[night shell]

objects in forward rendering will often compete for importance since only a select few at a time can be used

[night shell]

do not increase the box size using the tools that unity has, the danger with it is that it leaves the capture point wherever it is and it will mess with the box offset value

[raven jewel]

ok, so should i enter the size values?

[night shell]

yes, you can also just mouse over the X, Y, and Z of the box size in the inspector and drag to increase/decrease

[night shell]

but just to finish, objects have to select specific reflection probes, so increasing the importance value means that the reflection probe you are authoring will have priority (i.e. the object will prioritise the reflection from that reflection probe more over the other reflection sources in your scene

[raven jewel]

excellent. I re-baked the reflection probe, and looks so much better! thanks

[raven jewel]

Also. I noticed that if I change the intensity of baked point lights, then i will see that change happen live. However, this does not seem to be true with spotlights? if there a particular method to baking spot lights?

[night shell]

if you are changing the intensity of a light source that is supposed to be baked, and your seeing it change live with the changing intensity in editor then that means that light source is not actually baked

it is either mixed or realtime

a light source that is fully baked will not change after a lightmap regardless of what setting you change in the editor, the change will only apply until after you lightmap (or if there is no baked lighting data then unity will resort to realtime lighting by default even if you set it to baked since there is no actual baked lighting data)

[raven jewel]

i am having issues baking these spotlights. I even increased intensity to 50 which is very high. and no change after baking lighting

[night shell]

that is most likely because your spotlights are placed inside of the geometry and are being occluded

so move them ever so slightly out so that they are not inside any geometry

[raven jewel]

also would i only see the effect of spot light after baking reflection probe?

[night shell]

not sure what you mean by that but just start with this first

[night shell]

they don't have to be moved that far out

just enough so that they aren't actually inside of the geometry being baked

[raven jewel]

you are right! they were inside lol

[marsh mulch]

I seem to be having a lighting issue.
In the editor, the lighting in the scene appears "normal" (white-ish, soft shadows)
However at runtime, the scene lighting appears yellowed with harsh shadows.
At runtime, I am transitioning from a MainMenu scene into this example scene.

Any ideas? (I don't want the yellowed lighting)

[deft fiber]

Generate lighting from the Lighting window

[marsh mulch]

That doesn't seem to work. What setup must be done before clicking generate?

[deft fiber]

Nothing really
It must be done for each scene that has lighting

[marsh mulch]

Hmm, damn... it's creating the folder along side my scene, but does not seem to have any impact

[tulip tendon]

try enabling this

[woven oxide]

Hey, does anyone know how to solve this issue? Lighting is going through the pipe.

[languid wing]

Is the material also... transparent? Or is the mesh missing faces here?

Why can I see the pipe thorugh the pipe

[woven oxide]

I generate the mesh via code, but I'm not sure why this is happening. The normals seem fine

Oh, I set it to shaded wireframe

shaded version

[woven oxide]

The material is just a metalic one, opaque render face front

This is it in blender, showing the normals

[languid wing]

Do you have shadows enabled on the material?

[woven oxide]

I tried both enabled and disabled, no difference

[languid wing]

Receive shadows?

[tulip tendon]

not only on your material but also check the mesh renderer

[woven oxide]

Hmm that one should be disabled

If you want the code I can give it, one responsible for creating this

[tulip tendon]

wait a sec

disable the directional light

[woven oxide]

Alright

[tulip tendon]

do you also generate the normals for your mesh?

[woven oxide]

https://pastebin.com/WWiR6fdJ

Just the recalculatenormals

Maybe I'm doing something wrong, really not sure why this is happening

[tulip tendon]

go in the rendering debugger and enable light debug mode

[woven oxide]

Weird part is that even if I put render face to both, its still happening

I don't think it's a lighting issue, lighting seems fine with cubes/capsules/cylinders and such 🤔

Maybe i'm at the wrong section

I'm going to try to manually set the normals I guess

Oh wait, I think you are right. It's behaving oddly with the default lit as well

[polar peak]

how can i allow my light source to pass through fog

[woven oxide]

I did a little test, apparently this is normal unless I set the cast/receive to off, but for some reason this doesn't work with my model. First cubes have shadow, second one turned off, my model also turned off

[chilly kettle]

did you try making the tube thicker?

[woven oxide]

Hmm to be honest, the issue is more with the cylinder. It's just behaving odly. With lighting and with shaders. Can't seem to figure it out

[chilly kettle]

yeah, like i said 😄

i just want to make sure, its no to thin

sometimes light behaves weird with thin objects.

[woven oxide]

Ahh yeah, I tried making it thicker after you mentioned it. Unfortunatelly still the same issue 😦

[chilly kettle]

can you try adding loop cuts here?

[woven oxide]

Loop cuts, let me try 🤔

[woven oxide]

I'll try it tomorrow, thank you though 🙈 bit late and it's more tricky since it's code which generates this

[deft fiber]

Cast shadows "should be disabled"?
If the mesh renderer's cast shadows is disabled or the material's receive shadows is disabled, the light will show through as it does here

[woven oxide]

I tried any form of combination. Cast shadows on/off and receive shadows on/off. It's quite a weird bug

It's also only shining from the top to the middle. Not the other way around. If the spotlight is in the middle, Nothing happens on the top area

Confusing right? Reason I tried asking here

[chilly kettle]

well, put your weird generated mesh into trash and do it in blender! 😄

[deft fiber]

Why all combinations? I assume you want shadows on and receive shadows on
I may be misunderstanding what your goal is

[woven oxide]

Ah I meant just to see what would work. It should cast shadows, but the setting doesn't seem like it changes anything

[woven oxide]

To be honest, I did consider it. The user has an option to scale it in diameter/length, but that can easily be done via scale. Only issue is the thickness. That one is always the same. There may be a workaround I guess 🤔 Create 2 cylinders and 2 rings, just scale and place

[orchid falcon]

So I've had this issue with these noisy artifacts for a while now and I'm unsure how to get rid of them. The Artifacts flicker like crazy when moving the Scene View camera around. What would this generally be?
Is this a Lightmappers Sample issue, filtering issue or something else entirely?
The settings in the screenshot are simply what I last used while trying to get rid of this noise. Chances are the solution is something simple that I'm missing so hopefully I can be pointed in the right direction to fix this. I have followed the Lightmapping troubleshoot guide and referred to the sections that somewhat looked like this issue however the flickering still occurs.

[arctic isle]

If it's flickering it's highly unlikely that it's a lightmapping issue, most likely something to do with realtime lights in your scene (if any?)

[orchid falcon]

Found the setting. It was the Depth Bias in the URP object. Fixed it by setting Depth Bias to 1. Cheers

[raven jewel]

What cause only part of my wall to have baked lighting? The wall is one object, why is it not treating it like one?

[chilly kettle]

have a look on the lightmap debug view (the checkerboard - you can remember?^^)

[raven jewel]

It does not look good at the back, or on the cieling

@chilly kettle All my model are now separated. Since doing that, i do get much better results. But still a few issues though

[chilly kettle]

the resolution of your models is still messy 😄
If you imported your Models from blender, you should try again checking UV Lightmap Generate

[chilly kettle]

should more look like this

[raven jewel]

Yours is perfect! Yeh i will double check that

[wheat sapphire]

My scene's lighting changed by itself for some reason and now it looks like this.
And when I press play it gets too bright. I haven't changed anything in terms of environment light or the directional light

Pretty sure you can tell how weird the cube looks like

[chilly kettle]

looks good to me

[wheat sapphire]

im pretty sure it changed.

but you know, whatever its not really bothersome anyways

[chilly kettle]

Well, thats a standard realtime lighting situation ^^
You dont have shadows, thats maybe the "weirdness" you mean

[wheat sapphire]

yeah they got disabled by themselves, I enabled them again. Thanks.

[short wyvern]

hey, I have this scene/place in a scene where the lights at the top don't actually emit any light. through the whole scene, for some reason there is a sort of "neutral"/global light that doesn't come from anywhere, instead of just being dark until a light source is introduced. any idea why? and how to fix it?

[chilly kettle]

Hey, i have made a tutorial covering this behavior:
https://www.youtube.com/watch?v=zO2l0Fy7yDw

[chilly kettle]

And your lights are possibly emission?
Light from Emission is only visible when baking the scene.

[short wyvern]

the lights at the top do have emission but turning it off shows it does nothing to the scene

[chilly kettle]

Yes, like i said, emission only works when baking light.

[short wyvern]

I don't mind that they don't work. I want the scene to have less light

or at least have the light look like it actually comes from above instead of nowhere

[chilly kettle]

Watch my video

[short wyvern]

I did. for some reason only certain objects react to those changes like the doors

the floors, desks, etc. just lose reflections

[chilly kettle]

Okay. a few ideas why this is happening and how to solve it:

• Can you go into the lighting tab and at the bottom where the generate lighting button is, click on the small arrow beside and click on delete lighting information or something like this.
• Make sure that your bright objects use a "LIT" Shader.

[short wyvern]

OH there we go! clearing it worked

is this a problem?

[chilly kettle]

When hitting "generate lighting" it bakes the light for your scene, i guess you just stopped this process?

[short wyvern]

yeah, because I hit the big button instead of the small arrow

so I cancelled it and just clicked on delete baked light

[short wyvern]

@chilly kettle okay apparently I didn't factor in performance into this whole deal 😅

any way to get the deleted baked textures?

or at least bake lights back in and make it less performance-heavy?

[chilly kettle]

How big is your scene and whats your target device? ^^

[short wyvern]

not a very big scene, and currently running on m1 mbp, 16gb ram

[hushed ferry]

Hi everyone, I have a problem with the directional light, if I only use the directional light, it doesn't catch the shadows of the windows, whereas if I use a point light, it takes the lights
This is with Point light , (the project is HDRP , sorry, I didn't know where to post the problem, in hdrp, or in lighting since I'm both lol I'm confused)
This is with only directional light

I want an effect like this, with directional light, here I'm using a point light

[chilly kettle]

looks like you didnt even have a light there.
Did you checked the angle so it shines into the window?

[hushed ferry]

I'm trying all angles pretty much

[chilly kettle]

Can you show the Settings of your Directional light?

[chilly kettle]

ffs. what are all these settings in hdrp? 😄

[hushed ferry]

ah no lol, do you want to see the pipeline settings, or the volume? that's the light inspector

[chilly kettle]

Yeah, thats correct. I only work with URP, and thats way simpler.
I just know that it could be possible to archive such a strong light like you want is not that easy in hdrp, because everything is quite physically correct,
You may have to increase the intensity extremly high.?

[hushed ferry]

it just gives a lot of light, no shadows

[chilly kettle]

What does the Shadow section say?

[hushed ferry]

also because the objects in the scene cast shadows, only the windows do not, with this light

[hushed ferry]

here you can see better now

[chilly kettle]

hm.. i have no clue.. hdrp is fking complicated 😄

[deft fiber]

Angular diameter may be too high, and or effective shadow resolution may be too low

Also note that TAA needs to be enabled for high quality shadow filtering to appear correctly

Scene window will not show it unless Always Refresh is enabled

[hushed ferry]

everything is correct, also because the point and the directional are both in real time

[deft fiber]

What do you precisely mean by "correct"
Did you try decreasing the angular diameter? What shadow settings are your light and project using?

[hushed ferry]

the settings, the taa is active, otherwise it wouldn't even cast a shadow on the point, right?

[deft fiber]

It would, but it'd look weirdly fuzzy and grainy

[hushed ferry]

but I saw that there is also a problem with the camera, if I increase the distance of the camera, the shadows disappear, could this be the reason?

[deft fiber]

"Distance of the camera" to what? Or do you mean a property?

[hushed ferry]

ninth, in editor, if with the mouse wheel, increase the distance

[deft fiber]

Probably not relevant
Do me a favor and view this issue only through your actual camera component / the Game window
And first of all try decreasing the Angular Diameter

[hushed ferry]

I'll make you a little clip

[deft fiber]

Didn't you want it to be a directional light
I don't quite see the purpose of this
That is also not through the Game window which can be a problem

[hushed ferry]

exactly, I don't understand why the directional doesn't give me the same effect

[deft fiber]

If you did the steps I suggested you could be closer to solving the issue

[hushed ferry]

ok I tried in the game, I'll do the same for you, and the angular diameter lowered

[hushed ferry]

ok for the shadows that disappear, if I move away, I solved it

[hushed ferry]

this setting shadows

[undone blaze]

my lighting is messed up and certain parts are darker does anyone know the fix?

[cunning cairn]

Hello 🙂

[vale raven]

*Responding to this from @cunning cairn #💻┃unity-talk message *

You might try this method: https://www.youtube.com/watch?v=MDwVMaJ4mFc

[cunning cairn]

will watch, thank you

[vale raven]

You're welcome, I'll search for more videos so you have other options in case that video I sent doesnt work for you

or well, you can search on YouTube "unity full dark scene tutorial"

[cunning cairn]

You got it

thank you so much

actually looks dark now

[vale raven]

You are completely welcome :D

[deft fiber]

Your directional light isn't enabled in the clip so changing its angular diameter or other properties can't have any effect
Are you concerned about the directional light or the shadow fading thing really?

Note that your lights have a "Shadows" category of properties which is minimized in your screenshots that may hide some important clues

[chilly kettle]

There is also a video in my channel covering this topic:
https://www.youtube.com/watch?v=zO2l0Fy7yDw
@vale raven - maybe this as additional information 🙂

[hushed ferry]

I solved

[errant chasm]

Post how you solved in case somebody else wants to know?

[deft fiber]

What did you figure out and which issue was it that you figured out

[hushed ferry]

practically, the many "point lights" that I have had too high a range and a high indirect multipler and therefore the shadows projected by the directional light could not be seen

so I played around with the parameters a bit

[deft fiber]

That sounds surprising
Indirect multiplier only affects global illumination systems which you don't seem to be using any of, but too high light ranges can cause more than one type of issue

[hushed ferry]

Yes, I played with it a bit to understand the problem

now, having finished with the lights, I wanted to make ol bake, but it says so I'll give you a screenshot of the atlat and lighting settings OpenCL Error. Falling back to CPU lightmapper. Error callback from context: Not enough GPU memory to fit lightmap in memory, even in tiled baking mode. Available GPU memory: 17.5 MB

[deft fiber]

If your GPU really has 17MB of vram you won't be baking anything on it
So it'll happen on the CPU, that's all the warning says

[hushed ferry]

the space changes every time I bake, but I doubt it has that little VRAM

[hushed ferry]

this is lighting bake setting

[vale raven]

If that's something that works for who asked for this, then it's okay (for me, it's something I don't need since I dont work with 3D)

[deft fiber]

Update your GPU drivers and restart your computer

Do the test bakes with less samples and a smaller lightmap resolution

[hushed ferry]

already done

[lean igloo]

Could anyone help me understand why do point lights cutoff like in the picture when they shine over a sprite with a normal map attached?

[deft fiber]

Usually these kinds of issues are from an incorrect normal map, such as one not set as type "normal map" in import settings

[lean igloo]

It is set as normal map in the import settings

[deft fiber]

Then it might not contain normal data to begin with

[lean igloo]

Could you elaborate?

[deft fiber]

A normal map needs to store a normal vector in each of its pixels

[lean igloo]

The process I've found while researching this was simply creating the same sprite with normal colors and applying that new texture as a secondary _NormalMap texture. Maybe it is my process that is wrong?

[lean igloo]

For reference, this is the normal map I'm working with. As per what I found about the issue, there should be no problem about the Normal map itself....

[latent kayak]

Hey, I'm attempting a Mixed lighting setup in URP but when I make a build and run it on Android, I don't see my realtime avatar shadow at all. I have one Directional Light, Mode set to Mixed, Shadow Type set to Hard with a Strength of 1. My static environment (Terrain, Terrain Trees, etc) are flagged as Contribute GI Static. They're baking fine. Avatar is not flagged as Static. All the Mesh Renderers on my avatar have Cast Shadows set to On. In my URP asset, my Main Light is set to Per Pixel, Cast Shadows is enabled. Additional Lights disabled since I only have the one. I'm also baking Light Probes throughout the level. Everything looks great in the editor – baked shadows from the static environment, avatar casts realtime shadow, avatar is affected by light probes. But on Android, all I get is the baked lightmaps. No shadow from the avatar and it's completely unaffected by light probes. Does anyone have any leads on debugging this? Thank you!

[latent kayak]

I switched my lighting mode in scene settings to Shadowmask (it was Subtractive) and now I'm seeing the combination of realtime dynamic lighting with baked light. I don't love that I now have twice the number of lightmap textures to ship with the game and load into memory, but maybe there's a setting I can find to change that.

[deft fiber]

Unlikely
Shadowmasked lighting is meant to be the uncompromising quality solution
More expensive than realtime lighting alone

[latent kayak]

Oh interesting. More expensive in terms of memory, right? I thought that baked shadowmask lighting would have lower CPU costs than full realtime lighting. Do you have any idea why I wasn't able to see a dynamic realtime shadow with my subtractive bake?

[modest swan]

Hello,
I have a small problem with lighting in my scene. The ceiling looks like he is not getting any light at all, I tried to move the light up and down but nothing happened,
but all other ceiling is looking good, whats the problem ?

[deft fiber]

Shadowmask lighting is full realtime lighting, but it's masked by the additional shadowmap texture
That makes the lighting calculation itself more expensive because the lighting has an extra step utilizing the shadowmap
Shadow calculation also uses the shadowmask to prevent overlapping shadows
Distance shadowmask is the more expensive version of it which allows realtime shadowmasking from static objects as well
Not sure why subractive didn't work in your case
Perhaps some step was missed

[deft fiber]

Did you confirm there is no overlapping ceiling geometry at that spot? No warnings about UV overlaps in console after baking?

[modest swan]

there is some warnings in the console after baking, but none of them for the ceiling

[deft fiber]

What warnings?

[modest swan]

it was for overlapping uvs
but now I got none.

even here in the same ceiling ,
like there is a cut

[deft fiber]

I would try to find clues using the GI debug views:
https://docs.unity3d.com/Manual/GIVis.html
And as I mentioned examine the geometry for overlaps

[modest swan]

I didn't understand you

[chilly kettle]

How bany light bounces do you have in your settings?
Maybe the light is just bouncing once or twice and didnt reach the ceiling very well

[deft fiber]

What part did you not

[modest swan]

its 2 actually

[modest swan]

" find clues using the GI debug views"
which view you are talking about ?

[deft fiber]

The ones shown in the link, check all views for anything that might look off or show up with a warning color

[modest swan]

there's not a single view with the error
just the baked shows that the ceiling is darker than walls

[deft fiber]

And the geometry? Where is it from and did you rule out overlaps

[deft fiber]

I would check it in whatever modeling program you made it in

Also try baking with more bounces as Kjarudi suggested

[modest swan]

I tried, I changed it from 2 to 10

but it's the same

[modest swan]

I made it in blender

[deft fiber]

Then check the geometry in blender

[modest swan]

it's the same,
all things seems to be fine

[deft fiber]

Then I would try moving that particular light source to another place to see if the problem repeatsa, and illuminating the problem area with another light
Since we don't recognize the issue, the way forward is to try everything to try to pinpoint where the issue actually is

[modest swan]

I tried to move it up and down right and left but nothing fixes the problem

[deft fiber]

I don't expect moving stuff to fix the problem, but perhaps point to what could be causing it

[modest swan]

I also tried to edit the light, baking settings, creating a new light, but nothing helped at all

[deft fiber]

If entirely different types of light still show the same issue in the same spot, that's an important clue that implies the problem is likely with your mesh

[modest swan]

what light type do you suggest me to use in a scene like mine ( Apartment )

[latent kayak]

Thank you! Super informative. I'll try setting up a smaller scene and see if it works on android.

[modest swan]

Well, I change it from area to point and it acutely fix the weird black color but I don't know if its the best type to light a room ?

[deft fiber]

Any one that matches a light source that physically exists in the room, generally

[latent kayak]

Just wanted to circle back and say that uncovered why there weren't realtime dynamic shadows after a Subtractive bake. I had marked the ground as Contribute GI Static and the Receive GI dropdown to Lightmaps. When I switched the ground's Receive GI dropdown to Light Probes, my avatar casts a dynamic shadow on the ground. But now, I of course don't have baked lightmap shadows on the ground, so tree shadows etc don't exist. There's just the subtle changes to lighting on the ground from light probes. Am I trying to have my cake and eat it too here? Is there a way to have both baked lightmap shadows on static geo and a single realtime shadow? Appreciate all your insight so far.

[deft fiber]

Iirc subtractive means you should get both baked and realtime shadows on static objects, but that they won't blend correctly, rather they use subtractive blending

Not sure what the issue could be there

*from mixed lights, anyway

Subtractive is the mode I've used the least so I can't say much from experience

[modest swan]

Area light is perfect, it's just that ceiling which looking weird and wrong

[west flax]

anyone knows any good ACES tonemmaping examples/games? it makes everything so dark, i have to light it up with equator/ambient color, but this in turns make point lights useless

as in their intensity is too weak but raising it doesnt help

using URP

[modest swan]

any one has got any idea to solve this ?

[chilly kettle]

did you increase the bouncing?

[modest swan]

yea, I set it to 10

[chilly kettle]

Are you baking with bakery or the built in lightbaker?

[modest swan]

the built in one

[chilly kettle]

Hm. You also have way to much Ambien occlusion i would say

[modest swan]

I think that was the problem,
let me try to bake again

[chilly kettle]

only for the corners i guess

[modest swan]

yea as you said it was from the Ambien occlusion, Thanks for that

[raven jewel]

Does anyone know why my grass layer on my terrain is shiny? I have set smoothness to 0. I also tried to reduce environment reflection intensity mutiplier lower. I just cant make this grass texture look rough and none reflective. any advice appreciated

[arctic isle]

Smoothness 0 means it will be shiny

The smoother a surface is, the more reflective it will be

[zinc flume]

smoothness not roughness

[raven jewel]

Oh really. Thank you. I just though inceasing it makes it more smooth lol

[arctic isle]

Crossed a wire there 😂

[warped kiln]

I'd like to start by saying that I don't know much about lighting at all. I've stuck a video a cube but it isn't quite displaying how the source video is. What can I do with lighting to make it display brighter or more like the original?

[left apex]

Could someone point me into the right direction on how to achieve the glow effect on the left?

[tulip tendon]

turn on bloom

[left apex]

@tulip tendon How do I go about doing that?

[tulip tendon]

in the post processing volume

[left apex]

@tulip tendon I'm not entirley sure where to find that, I'm very much a novice

[tulip tendon]

[left apex]

@tulip tendon I'm still stuck. I downloaded post processing from package manager and created a new material with the bloom glow (following this tutorial: https://www.youtube.com/watch?v=5dvst-lbx1Y&t=188s) but I am still not sure how to apply it to the object as everything I do doesn't seem to work

[tulip tendon]

which rendering pipeline are you using?

[left apex]

@tulip tendon 3D (Built-In Render Pipeline)

[tulip tendon]

does the pumpking have an emmisive material or a light inside of it?

[left apex]

I'm pretty sure based on this it doesnt have an emmsive material

[tulip tendon]

it seems it has an emmision map

try turning up the intensity

also show your bloom settings

[left apex]

@tulip tendon

For some reason also messing with the bloom settings is affecting my sky

[hushed ferry]

sorry, I have a problem with the cake, I don't see any shadows, in the editor you can see it very well, while if I bake, no

[median vine]

just here to say, i suck at lighting.

[tulip tendon]

put the intensity to something like 0.5 10 is too much, is affecting your sky because bloom adds a glow to any kind of light or emmision

[left apex]

I fixed the previous issue but now I am having this where when I shine the flashlight in a particular area, it creates a hard line but everywhere else is fine

[left apex]

bump, it's something with the spotlight from the lanterns and flashlight interacting but I'm not sure how to fix it

[main wolf]

too many pixel lights
either bake the light or use deferred rendering
https://docs.unity3d.com/Manual/RenderTech-DeferredShading.html

[raven jewel]

Why is there green refelcted light at the bottom of my bar stool. The green light is coming from the back of this bar, and should not be able to reach that part of the stool?

[raven jewel]

And also, I am not sure why this happens. After a lighting bake. My spot light will light the wall, but not the counter top. The wall and counter top are both set to static, and set to generate light map. Anyone have any idea why the counter top is not lighting, but wall is?

[deft fiber]

Looks like the green is from a reflection probe

[deft fiber]

If baked lightmapping results are inconsistent, that's likely because of lightmap UV issues

[raven jewel]

Maybe i do not understand the purpose of a reflection probe. If I do not use a reflection probe, does this mean my ojects are enable to cast a reflection? and if object are within my reflection probe box they can?

[deft fiber]

A reflection probe takes a 360° image from its position, which is applied as reflections to objects within its bounds

[raven jewel]

ok, to position of the probe is very important

[hushed ferry]

Hi everyone, a question, why do I lose the shadows when I go from scene 0 to scene 1?

[chilly kettle]

What do you mean with „go“

[hushed ferry]

sorry, I meant in the build, you can't see the shadows, in the editor you can

Now I'm trying to redo the baking of the lights

In the editor it's like this, you see all the shadows, in the final build you don't

[chilly kettle]

They are baked?

[hushed ferry]

yes , they are in editor

[chilly kettle]

If you bake lights, they look the same in editor and gamemode

[hushed ferry]

yes, but in the build no, you can't see anything, everything is dark

[chilly kettle]

Yeah, but this should not be possible when baking lights. Possibly they are not baked and still realtime?

[hushed ferry]

wait, does the directional light have to be in bake or in realtime while I'm baking?

[chilly kettle]

You can only bake lights that are set to baked and only on surfaces/models that are set to GI static

[hushed ferry]

therefore the directional light must also be on "bake"

[chilly kettle]

As long as a light mode is „realtime“ it’s working in realtime and nothing is getting baked.
You can whether you have baked lights if you check the scene debug view (baked lightmap).

[hushed ferry]

aaaaah, I thought that the directional light should be in real time and not in bake, at least that one, now I'll try like this, I'll let you know

[median vine]

Anyone got a lighting for dummys video

😭

[chilly kettle]

That’s a wide topic. Which problem do you have

[median vine]

Everything

My brain just can't comprehend how to get good lighting at all

[chilly kettle]

https://youtu.be/DlxuvvYZO4Q?si=-BB_BXWIgmuL8dRs

[median vine]

Pinged?

[hoary fossil]

Realised someone had already asked the question so i deleted it.

If you need any help let me know.

[median vine]

Ah np

[hushed ferry]

I did what you said, no results

[dawn cape]

You need to mark the light as static as well as anything else you want lightmapped

[west flax]

i have a weird light culling bug in LTS 2022 in URP (but i think it already happened before i switched to urp)

[deft fiber]

Looks like pixel light limits https://youtu.be/y_vw-jzuNs0

[west flax]

youre my savior thanks
thought i already have the settings at its limit, and dont wanna switch to deffered. maybe ill divide the mesh

the affected mesh is terrain
okay splitting the terrain worked

[deft fiber]

Forward+ is also an option
Splitting meshes and decreasing light ranges is guaranteed to work in all unity versions and target platforms though

[west flax]

Oh damn i already split my mesh 😭 are there any downsides to using forward+?

[deft fiber]

Only supported in new-ish editors, might be buggy in some situations, might not be supported by old devices and may have a higher overhead rendering cost
In 2022.3. specifically it also can lead to much higher build times
No official downsides besides that one though

The first few are just stuff to watch out for because it's a new system, and more complex internally than forward

[west flax]

also it seems you need to redo the procedure everytime urp updates? unsure

Cause they tell you to take the package from Library and put it in /Packages

Nvm i was talking about a wrong package

[queen shell]

how do i fix this weird noise on the blue bit of my mesh its just supposed to be smooth

[west flax]

by the way, forward+ lights can sometimes pass through walls, and this is when i also get the flicker. Forward doesnt have this behavior

[hushed ferry]

ah ok, I'll try again now

[hybrid estuary]

is there a way to get only some light to pass through semi-transparent materials instead of turning off shadows completely for that objects?

[night shell]

yes although it won't be perfect, the way semi-transparent shadows typically are done is in the shadow caster pass, use a dither pattern to render only parts of the object per fragment. The more transparent an object has, more fragments of the object get discard, and vice versa for the other way around

the reason why this instead of just regular transparency, is because with shadowmaps, everything that is a shadowcaster is basically assumed to be fully opaque. You can't really do proper transparency, so one way to do it is to use this classic old school method of "FAKE" transparency where the model will have parts of it discarded in a pattern, and when viewed from a far (or when filtered with some kind of blurring effect) will actually give the intended effect

problem is when using hard shadows, this looks god awful

but use soft shadows (i.e. shadows with filtering)

now that is the custom shader route, but unity does have them built-in if I recall with the standard shader

where if you set the rendering mode from opaque to fade it will do just this and let you have semi-transparent shadows

[hybrid estuary]

Thank you!

[night shell]

only use it if you have soft shadows enabled

if hard shadows are in use, best to leave them off as it will just look awful

[timber lichen]

these shadows are broken with raytracing

why that be how it is, and how should I go about fixing it

[tidal cradle]

guys how do i remove the shine

im new

[chilly kettle]

In the material set roughness to 1

[tidal cradle]

i fixed it thanks

[chilly kettle]

Interesting music 😂👍🏻

[harsh pelican]

So we do bake lightmaps. We bake at night time because we have a dynamic day night cycle, so shadows aren't baked of course, but in order to bake the AO, etc.

however, looks at the dark side of our objects in this picture. My guess is an accummulative effect of both the bake and realtime shadow or something like that 🤔

Any idea how we avoid it becoming this dark, and look more like the darkness of the actual shadow?

(The directional lights are dynamic and not static or baked)

[shell juniper]

Look into ambient lighting, that isn't the effect of any shadowing

[harsh pelican]

Already did, we're using gradients for ambient lighting. Doesn't seem to look like this right off a fresh bake, but as soon as I start playing (with no scene changing) it becomes pitch black again.

[sterile jetty]

There are 44 objects in the Scene with overlapping UV's. Please see the details list below or use the 'UV Overlap' visualisation mode in the Scene View or Lightmaps in Lighting Settings for more information.
I'm somewhat new to baked lighting, and I'm having this issue; because of it, I'm having entire rooms failing to render. How do I go about fixing this?

[latent kayak]

Just wanted to circle back and report that I discovered why I wasn't see realtime shadows in addition to my subtractive lightmaps. There were some internal Unity shaders being stripped. I had to go to Project Settings -> Graphics -> Shader Stripping, set Lightmap Modes to Custom, then enable Baked Non-Directional (since I'm only using Non-Direcitonal) and Baked Subtractive. I hope this helps someone! Thanks for your help Spazi.

[deft fiber]

Interesting, it was the issue in editor as well not just build?

[latent kayak]

No, I was only seeing the issue in builds – everything looked fine in-editor. I'm thinking there were some necessary shaders used for subtractive lightmap rendering being stripped during the build pipeline.

[deft fiber]

Ah, had I not missed that detail I would've fixated on it
Still, I had forgotten that shader stripping can cause that, among other problems

Helpful information

[sterile jetty]

okay, now it won't bake this side of the wall

it bakes every other part of this mesh but refuses to bake this side

and I've tried just about everything

[deft fiber]

Did you fix the UV overlap that the console is warning you about

[sterile jetty]

I did for that specific object

[deft fiber]

Why not all?

[sterile jetty]

uh... cuz I'm still working on it

could that be why it's acting goofy?

I can go ahead and fix all of them and see if it fixes this mess

[deft fiber]

No need to particularly "work" on it usually, just enable lightmap UV generation for all lightmapped meshes in the import settings

[sterile jetty]

I am

and it does not fix it

I am making lightmaps myself in blender, now

[deft fiber]

That does not tend to be very practical

[sterile jetty]

then how do I adjust the settings so that it actually generates the maps correctly?

[drowsy siren]

In the built in render pipeline, similarly to the _CameraDepthNormalsTexture that lets me get screen depth and normals, is there a texture that gives me what areas are in shadow and what areas are not?

I want to change the color of my edge detected outline based on if the edge has light on it or not

The outlines on the lighted part would be whitish instead of blackish

[deft fiber]

That's a birp-specific shader question I guess

[fading notch]

I am making a 2d game with shadows, the problem is if a shape is enclosed it filles the shape with shadow which is not good inside rooms, help?