archived-lighting

[misty ice]

just a weird darkness thing when you get close to the walls

[balmy agate]

random question: is that a horror game?

[misty ice]

yes it is dark but the walls aren't suppose to be dark like that when you get up close to it

[balmy agate]

oh

[deft fiber]

Never seen that kind of issue before, but got a hunch there may be something wrong with the normal map or parallax occlusion map if you're using one
You could try disabling those parts of the material to see if that changes anything

[hazy plume]

is it possible to generate lightmap uvs in blender and use those uvs for bakign lights in unity?

[frosty palm]

@misty ice This is a shot in the dark (no pun intended) but do you have HDRP's microshadows enabled? If so, try disabling them.

[misty ice]

im not using HDRP, im using built-in with post processing

[frosty palm]

Hmm it definitely seems like an issue with the normal map somehow, only I've never seen it before so I can't offer any suggestions as to how to debug it :/

[deft fiber]

Sure
I believe Unity just uses the second UV channel for lightmaps if you don't generate some when importing

[hazy plume]

oh okay

then i did everything right i think

i lightmap packed on the 2nd uv channel with a res of 2048

for all of my objects

[deft fiber]

Not sure why you'd want to
Sounds like a hassle to get the margins right

[misty ice]

disabled the normal map

still does it

[deft fiber]

Interesting!

[hazy plume]

because i keep getting overlapping uvs when i use unity's lightmap pack even though i increase the margins and decrease scale in lightmap

[deft fiber]

Decreasing scale in lightmap sounds like it'd make it worse, not better
But sure making them manually is a fix that works

[hazy plume]

decreasing scale in lightmap would make some objects take up less space which would mean that they wouldn't be overlapping with other objects' uvs

[deft fiber]

I was under the impression that each separate object has its own separate lightmap

[hazy plume]

i have 2 objects and they have their own lightmap

each

when i generated uvs

it generated one for every single one

which is why i was decreasing scale in lightmap for certain objects

[deft fiber]

That makes sense

[hazy plume]

right now i only have 2 objects as opposed to having about 50 before

combined all of them into one

[deft fiber]

I guess that's what static batching does anyway

@misty ice I had a similar issue earlier, and it was fixed by just messing with shadow cascade settings, turns out polygons that were too tall or wide couldn't recieve shadows properly
Another troubleshooting step might be to see if that issue happens to any other object in the scene, and change the shape of that wall to see if that makes any difference at all

[vague bane]

Whats the best way to go? making a 3rd person art gallery so big emphasis on beauty on one scene. built in processing or URP?

[deft fiber]

There's no right or wrong answer to that, but I'm a big fan of URP

Does a lot of things out of the box and there's some nice optimizations going on under the hood

And just feels way more modern to use

But I guess it can't be pushed as far as the built-in RP if you like to program your own shaders

...Or use asset store shaders and effects, as most of those are probably still for built-in
But the people at #archived-hdrp might be able to tell you more

[vague bane]

yea im enjoying all the functions without so many post processing layers and added elements that could go wrong. this lighting is insane XD im a lighting engineer for concerts so i got tasked with lighting the world but finding it rather tricky. do you know of any really good docs or youtube videos that explain the lighting in unity?

[deft fiber]

https://learn.unity.com/tutorial/introduction-to-lighting-and-rendering
The official tutorials and docs are easy to overlook, but a really good resource

Most tutorials on youtube I see are specifically about baking, as that can be a bit of a tricky process

[vague bane]

and baking is the way to go?

[misty ice]

ok sizing didn't change it but found out the one of the inside walls was duplicated and i didnt know so thanks for that xD

OK WAIT NEVERMIND, IT DID FIX IT (edit: i thought it did but theres still problems, ill figure things out)

but now my walls are about 300 feet tall

thank you @deft fiber! i figured out how to fix it

[hazy plume]

how can i fix this?

the shadows are just grey

i can see the entire layout

its so annoying because i just want the dark parts of my map to be dark

here are my settings

im on 2018.4.10f1

[frosty palm]

@hazy plume Do you have a light in the scene?

[hazy plume]

no

but it happens regardless of whether i have a light in the scene or not

on different scenes

@frosty palm

[frosty palm]

@hazy plume I'm just not sure what you expect it to look like 🤔 If an area is in shadow, it's in shadow, and that shadow will always be the same colour. Unless you're expecting it to have some indirect lighting baked in? In which case I would ask, is your geometry marked as static? And/or do you have light probes in the scene?

[hazy plume]

geo is static

no light probes

im expecting for the shadows to be black

instead of just gray

looks like there arent even any shadows because i can see the entire room

[frosty palm]

@hazy plume Ah I see. In that case it's probably indirect lighting from the sky. Try turning down the intensity multiplier for the Environment Lighting section in your screenshot above.

Either that or the Indirect Intensity slider near the bottom

[coral thunder]

Okay, I'm still struggling to get this to look how I want. How do I get this TV screen to both have a 9 frame image sequence of static be animated on its surface while also emitting a flickering light into the room? And how do I get these (moving) light beams to actually emit light into the room and hopefully be reflected in the black surfaces? Thank you.

[frosty palm]

If it were me I'd add area lights (which I think can only be realtime in HDRP, not the builtin renderer) on the moving light bars and the TV. Either that or several point lights along the lengths of the light bars. Emissive surfaces don't generally cast realtime light (although I'm not sure if light probes can be made realtime or not)

[coral thunder]

Hmmm. That would be seriously unfortunate. I suppose a few point lights on each light bar could work. Currently the lights being reflected are area lights but I'm not liking how they still reflect as point lights. I haven't actually played with light probes at all yet so maybe I'll go look at what they can do. Thanks.

[timber plank]

Hi guys,
I have an issue with my HDRP 10 project (Unity 2020.3). The same scene does not react exactly the same either I load it stand alone or from another scene.
When I load my scene stand alone, it looks like that:
https://cdn.discordapp.com/attachments/458270695147962368/867050465359429652/unknown.png

When I come from another scene:
https://cdn.discordapp.com/attachments/458270695147962368/867049630688870460/unknown.png

I have the impression that it an exposure issue but I don't know why only on some materials?
Any helps?

[frosty palm]

I'm actually having trouble spotting the difference. The different camera angle doesn't help. What exactly are you looking at? 🤔

[timber plank]

the main character in the middle

on the second picture he is shiny 😄

[frosty palm]

Ah right, I assumed that was just an effect that was supposed to be there (like the second screenshot had been captured at a different time during gameplay or whatever).

Looks like the other character in the background is glowing as well, although it's harder to see

[timber plank]

indeed, he is glowing :/

the only difference is the way we load the scene. In the first case, we just start the scene (pressing play on Unity), the second, we are going from another 3D scene (the lobby)

[frosty palm]

What happens if you make a new scene with a simple script to let you press a key to switch to this scene? Isolate whether it's something with the lobby scene or just switching scenes generally.

The obvious answer to the problem is that something in the lobby scene is changing a setting or perhaps there's an object with Don't Destroy on Load enabled that shouldn't 🤔

[deft fiber]

Usually
Baking gives you the highest quality lighting with the downside that it's static and uninteractive

[timber plank]

I'm working on a code to make a switch as you said. I already check if there is something with Don't Destroy on Load but no :/

[vague bane]

indeed, todays my light probe day haha

[timber plank]

The issue happen only when I came from the lobby. After investigation, the problem seems to come from the baking. When I clear all baked data, the problem disappear :/ But I need to bake my lights 😢

[deft fiber]

We used to have this kind of issue that was related to a missing Sun Source

Another issue was that the directional light wasn't of type mixed

Iirc it was set to baked, which caused it to act like mixed but only when not transitioning into the scene from another

[timber plank]

we are in HDRP 10, we don't have this config 🙂

[timber plank]

or directional is in mixed :/

[deft fiber]

Ah, HDRP is different in that way

[deft fiber]

You can animate the TV's monitor material to change, and at the same time animate a realtime light to change intensity with it in sync if they have the Animator in a shared parent object
Dynamic, long stretches of light emissive material is perhaps the hardest thing you could ask from a lighting system 😅

If you don't have Enlighten, RTX or some tile-based lighting system in your project, stretched light sources are either baked or faked
If they're baked, they won't be moving
If they're faked, you'll have point lights dotted along the length which causes weird reflections, and with forward rendering running into the light limit

Enlighten realtime GI is coming back, so that might be an option for you if you really need those kind of lights

[frosty palm]

When you load the next scene, are you doing it additively or replacing the existing one?

[timber plank]

replacing.
But ... I find a clue. When I disable some objects and rebake, the problem disappear. So, it might have an issue with the baking of one of them

[frosty palm]

It is? I never used it when it was a thing. Might have to google this a bit...

[deft fiber]

https://forum.unity.com/threads/update-on-global-illumination-2021.1067015/ here's details on how they're supporting it

tldr URP and HDRP get it back as a realtime lighting solution starting in 2021.2.
Built-in had it all this while

[timber plank]

ok, the problem come from the light probes. Is there a issue with light probes and the load scene ?

[cerulean sundial]

my lighting only works on some patches of grass, anyone know why?

[solemn cosmos]

lightning drops huge lag

anyone knows that problem?

[coral thunder]

So, how do I get the material to animate/change? is the image sequence I made usable or do I need to use another method?

[frosty palm]

What lightning? Or did you mean lighting?

[solemn cosmos]

yes sorry

[timber lichen]

Why is my lighting like this?

The light from the fireplace is flickering btw if that makes anything break

[timber lichen]

Is it at all possible to generate lightmaps at runtime?

[frosty palm]

I don't really know what I'm looking at. What exactly is the problem?

[frosty palm]

What do you mean by "drops huge lag"? Causes low framerate? How many lights do you have? Do they cast shadows?

[frosty palm]

Where is your light positioned? Is the grill blocking part of the light and casting a shadow? I'm also not entirely sure what is wrong with that screenshot, it's hard to tell from a static image.

[cerulean sundial]

i fixed it, but it was that my lights just didnt work on some grass (turned out it was a problem with the texture)

[solemn cosmos]

Like 4 lights and no shadows

[frosty palm]

What kind of PC are you testing on? And you haven't confirmed if you mean you get a low framerate

[solemn cosmos]

GTX 970, 32 GB ram, AMD Ryzen 5 3600 6 core

[timber lichen]

It's inside the logs. I set it to soft shadows

[frosty palm]

If you remove/hide the logs does it look right? It's probably not working properly because it's inside the logs.

[deft fiber]

If the light is inside or very close to objects, it's best to disable shadows from those objects

Fireplaces rarely cast sharp shadows, which you'll be sort of limited to with point lights I believe

[timber lichen]

Ahhh ok thank you :)

[deft fiber]

What I would do switch it out for a very soft-edged spotlight and stop the whole fireplace from casting shadows from that light

[timber lichen]

Ahh ok

Thank you guys :)

[deft fiber]

Good luck ^^

[timber lichen]

Thanks! :D

[frosty palm]

What framerate do you get with those lights?

You're not really giving us any information to go on in order to help you

[deft fiber]

You can keyframe material changes in animation, which may be the simplest approach

[solemn cosmos]

i got like 100-120 and when light is on 20-30-40

without light

with light

i feels more laggy then first

everything goes slow

[solemn cosmos]

oh i found the problem thanks

[frosty palm]

What was the problem? Out of curiosity

[deft fiber]

Always share solutions so others can look out for the issue as well

[steep iron]

How can i fix this?

There's a light point behind the wall.still, I can see it reflection on the ground

[deft fiber]

Baking or point light shadows
Please use screenshots

[steep iron]

Ok

[steep iron]

I just don't have discord on my PC

[steep iron]

Thank you, it worked

[slow sierra]

How to do i make it so my player is affected by reflections?

I have a player with a pistol and i want the metal on to have reflections

this works with the small props around the scene as im using realtime but not the gun

[deft fiber]

@slow sierra Do you have more info, like what rendering pipeline you're using and what kind of lighting setup your level has

The solution could be as simple as adding a reflection probe

[slow sierra]

i am using a reflection probe

[deft fiber]

So the solution isn't that simple
Could also have something to do with how you're rendering the gun, if it's like it's own first person space or something like that

[slow sierra]

not really

its using the same camera as everything else

ive just made a short video showing all the issues

main issues are the reflections being a bit weird on the floor and the black corridors

nvm fixed the black corridor

[deft fiber]

At least the reflection is there kinda

Reflection probes are bad with accuracy, but you can improve it by using box projection and positioning the bounding boxes of the probe very carefully to match the prominient bright surfaces

Looks like box projection is on but the bounding box isn't correct

@slow sierra https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@11.0/manual/Override-Screen-Space-Reflection.html Screen space reflections are also a good option to try if reflection probes aren's serving you well enough

[slow sierra]

bounding box?

[deft fiber]

the box around the probe controls its influence, but also where the "walls" of the box will be seen in reflections

The implementation could be a little more involved in HDRP

as I'm more familiar with URP

This looks to be the setting that allows you to map the reflections to volume box

[slow sierra]

alright

I don’t think I’m on hdrp though

[deft fiber]

That's pretty important detail, which is why it was the first thing I asked
There's some HDRP files in your project so I had to assume off of that

[slow sierra]

yeah that was from one time where I was experimenting with that

[deft fiber]

So, what render pipeline is it? 🤔

[trim flint]

I'm gong to guess this isn't the place to ask for help with shaders is it?

[deft fiber]

People are really busy, so it's really unlikely anyone has time or interest for any 1on1 tutoring

[trim flint]

Yeah i mean text is fine too its just hard to explain

[deft fiber]

#archived-shaders would be more appropriate
Your best bet is to describe the issue and hope someone knows something

[trim flint]

ah thanks i couldnt find the chat 😬

[clever shoal]

Hi, guys! Does anyone knows how to change baked probes during runtime?

I want to make a skybox transition with lighting blend

[fierce seal]

could someone help me with a lightmap issue? for some reason baking lightmaps leaves these weird artifacts on walls (I'm using URP)

[vague bane]

Hey guys! So im using a spotlight, culling mask set to 'Artworks' and the image is set to layer 'Artworks'

In realtime the spot lights up the images and it looks amazing, when baking i get this light bleed even though the culling is set to only the artworks layer. any suggestion to fix that?

Do the walls need to be assigned their own layer so that they are not reading from the 'Default' on culling masks?

[deft fiber]

So what is the goal, exactly?

[vague bane]

the images look really dull in the area and im not sure how to brighten them up so adding a spot pointing directly at it made it pop and its what i want to go for.

[deft fiber]

So you want the wall to be not lit?
The simplest solution by far is to add the painting as an emission texture in the material, in addition to base texture

[vague bane]

no the wall musnt be lit from the spotlight, just the area light (blue)

i will try that thank you! the image isnt static in the project folder. they are being pulled in from a URL then added as a texture onto the basmap but im sure i can wiggle the script to give me both

[split pond]

dont know which channel i should post in, but how do i apply a roughness map on my miniature?

i got a diffuse map on it but how do i make stuff shiny and metallic?

[edgy cave]

how do i make everything illuminated the same amount

[deft fiber]

I guess by default everything is being lit by the environment light source, or your render pipeline equivalent

[edgy cave]

yeah i figured it out in the end

[deft fiber]

You could start by investigating why your lamp seems entirely unaffected by lighting 🤔

Normally lamp fixtures have an emission map to ensure they light up evenly while being constantly illuminated

[slow sierra]

can anyone tell me how to add reflections to a scene like this? i am not using hdrp

[tranquil thistle]

Hey everyone! Does anybody know how can I mimic this kind of lighting? How should be the settings?

[proven goblet]

So out of nowhere my lightmaps became broken for no reason, they looked perfectly good before but now they look like this. No settings changed, just started doing this out of nowhere

[rancid axle]

Hi all. How do i solve directional light still lighting underground caves, bcoz shadow distance doesn't cover the visible cave floors?
My caves are very spacious...

How do u do long distance shadows anyways, like cloud shadows moving, shadows of mountains etc?

[deft fiber]

What RP are you using?

[slow sierra]

i believe its the default one

[deft fiber]

The built-in RP has both box projected reflection probes and screen space reflections afaik
Which is what I recommended the last time you to use

[slow sierra]

it said i needed hdrp

[deft fiber]

https://docs.unity3d.com/Manual/AdvancedRefProbe.html box projection for built-in
https://docs.unity3d.com/Packages/com.unity.postprocessing@2.2/manual/Screen-Space-Reflections.html screen space reflections for built-in

[tall arch]

from what i’m seeing, this is just default unity lighting, nothing special

[rancid axle]

Hi so i have 2 issues with projectors
First is why is there that square around the projector itself? In here the floor is a terrain, getting hit by a directional light

And second (can't show pic), the projector just doesnt show in some. Same as the first, but on a different underground terrain that is in a layer that the sun is set to not hit

[rancid axle]

So basically projectors only work on an already lit renderer?
Is there anything that works on both lit and in receiving shadow?

This is a pci of a projector only showing on the lit part. The left black is a shadow that falls to this cube

[deft fiber]

Which RP are you on

[lofty quartz]

How can I prevent lights going through a tilemap on top of it?

[deft fiber]

@lofty quartz Culling masks?

[lofty quartz]

Ahh, a hint. Let me dig in to that. None of the forum posts mentioned it.

[deft fiber]

Hmm, that's 2D lights, right?

[lofty quartz]

Yes

[deft fiber]

Then you probably can use Sorting Layers to render the lights behind the roof tileset

Culling masks are more of a 3D lighting thing I think

[lofty quartz]

It was the sorting layer. I had tried that but was doing it in runtime and it doesn't do anything unless you set it outside of runtime. Thank you very much! Had me worried that my roof couldn't be a tilemap. 😄

[dull turtle]

random square of light?

[deft fiber]

If you've baked lightmaps, could be overlapping UVs
If it's dynamic, it't probably the usual kind of light leaking near vertices

[dull turtle]

ok

ye its not baked

[vagrant crag]

hey guys were trying to bake a simple lightmap but behind this tv its all messed up
were using the standard pipeline

[odd ingot]

hey everyone, I'm having some incredibly weird behavior with the 2D lights in unity. If anyone can help me figure out whats been going on, at this point I don't even know how to look up the problem. https://imgur.com/a/pAzwFu1

[odd ingot]

fixed it by deleting all the URP assets and resetting up the project with new ones 🥲

[drifting panther]

any way I can get some help?

[deft fiber]

You'd have to explain your issue first

[drifting panther]

the issue I was on about was that on some textures light would appear, which was pretty bright and if you moved, it would start flickering, it started doing that when I changed rendering modes from Gamma -> Linear and/or Forward -> Deferred rendering path

[olive iris]

You should put both in different layer for each light to keep it separate I guess.

Your aiming it the wrong direction?

[olive iris]

You place out reflection probes per room and per hall way?

[vague bane]

Yeah it wasnt working out but @deft fiber s suggestion of using the same image on the emission map worked beeèeeeautifully 😍

[olive iris]

Cool, I would just use layers really for these kind of things rather than emission map. Emission cast different light, outwards from the source and increases render time and gives more noise.

[vague bane]

Ill definitely try that! So the walls and artwork would need to be on separate layers?

[olive iris]

One of these if I remember correctly

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

https://www.youtube.com/watch?v=1cjKPU_3A4A

Should teach you the principle and probably other ways to use layers to do creative lighting.

[obtuse jolt]

Is there any way to get a Sprite Shape 2D's fill texture to use a normal map? "Enable Tangents" on the Sprite Shape Controller seems to do nothing

[stark violet]

Howdy. I am really new to unity and I have no idea why the rooms I uploaded look so dark on the inside (as seen with the dark wall on the right and the black wall on top, even though I made it white.) Can someone help me in terms of how to make it brighter?

[frigid zodiac]

check pinned msgs

[deft fiber]

Is the lighting turned on at all in scene view here?

This looks like the temp lighting you get in that case, which doesn't light surfaces equally

[deft fiber]

<@&502884371011731486> dreamingniki#8659 spamming

[white parrot]

Has anyone had an issues with sprites causing a gap between the sprite & shadow?

Looking to make it so that the shadow meets the feet of the character

[slow sierra]

how do i edit the distance at which shadows fade out?

heres a picture of the issue

[fickle needle]

do you mean shadow distance?

[slow sierra]

yes

[fickle needle]

if you're on the built in RP, it should be in the quality settings

[icy tundra]

@white parrotFirst of all make sure that the visible portion of the sprite is actually touching the floor, and also probably adjust the bias settings in the light

Though I actually used a 3d shadow caster on my character sprites to avoid the 'flat edge' problem, and that solved the gap too.

Obviously hiding the mesh 😄

[deft fiber]

All three solutions I would've suggested!

[teal gazelle]

i assume this has to do with the shadow settings. I'd guess it's the soft shadows causing it

[white parrot]

@icy tundra & @teal gazelle thanks for the responses!
I will look into the 3d shadow caster and see if that fixes the issue. Main problem is it will lose the pixellated effect of the shadow itsself

It could be the soft shadow, so will see if changing this has any affect too, again thanks guys! 😄

[vale swallow]

Hello everyone. can someone please help me to fix this problem? thank you

[deft fiber]

What caused it? What does it break? Did you try googling the error?

[vale swallow]

I tried googliing and I think I didnt find anything

and Idk

i just added the water from unity assets standard or something and then moved the directional light and this apeared

so no idea

[deft fiber]

Is it causing some issue
Vague errors might go away with an editor restart

Could keep "Collapse" on so you can see if there's error besides that one
You also have some warnings

[vale swallow]

Oh Ok I’ll try thank you

Sir

[grizzled warren]

In this image, the camera is positioned inside one of the walls.

Does anyone have an idea why real time directional light would creep into where to cubes touch like this?

I know that bias settings, cascade counts, and shadow resolution can help reduce this, but, I feel like there's a way to completely stop this, since these are two touching mesh objects.

change in light direction... it's like shadows are z-fighting? not sure the right term

[icy tundra]

You could keep the pixelated effect by using cubes for the shadow caster instead of spheres and capsules...

[raven crow]

Hi guys
I spend the whole week trying to fix this problem with the lighting but I couldn't fix it
can u guys help me?

[rancid axle]

Hi all. Anyone know what "multiple importance sampling" is?
I'm trying to just use lowest settings for fastest bake for preview stuff. Will this option help me do that?

[deft fiber]

Forward rendering has a light limit of ~4 per object
If you split the road into multiple mesh renderers it should light up properly

[raven crow]

@deft fiber
i wish that i posted here a week ago
thank you

[summer aspen]

On the latest URP, Deferred renderer may have unlimited amount of lights when they are not casting shadows. (With shadows it may have only a few depending of the size of the shadow map allocated, also depending on the type of light)

[rancid axle]

Hi all
I got a few questions about lighting. Sorry a complete beginner here
My game's got 2 big ish terrains, the underground one is on a layer ignored by the Sun
Should i just not use baked GI at all? Bcoz even with the lowest settings on every field, the bake still estimates to 6 hours
The terrain's like 1km wide, times 2
Only got ~15 lights in total in the underground. Most objects are box/spheres, set to static contribute to GI
Is there just no such feasible thing as "small open world, lowest quality baked GI"? That GI is only for small spaces?
Should all lights just be realtime but with either the really big ranges or small corners in the underground? And the camera culls the lights as needed, artifacts/flicker as hell but i really dont mind at this point
If i dont use GI at all (bcoz it's just impossible for terrain scale stuff), i wont have access to Area lights and Lightprobes in any way?

[grizzled warren]

these are most helpful in reducing bake times

I'm not sure: can you make your directional light Realtime only to avoid baking time on terrain? or will it still bake from skybox light?

[earnest forge]

hello

i made a fire effect using a tutorial, but it is like a bonfire and only covers a small area

is there a good way to cover a large area in fire?

i'm trying to make a warzone for my game

[rancid axle]

Sry i had the unity bug.
Apparently it took hours even with lowest possible settings bcoz.. idk unity
Restarting fixed it...

[grizzled warren]

oh, what bug? baking can take a while

speaking of which, this is really hard to figure out by trial and error since it takes so long

has anyone come across a good & detailed description of how the lightmapper works?

[grizzled warren]

I've spent about two days on this now, it does kind of feel impossible to configure right, and re-baking to figure out the small adjustments like bias is just not feasible time-wise.

It also takes a really long time even for tiny little example scenes...

I've noticed that the popular games (RoR2, Valheim) aren't using baked lights and that many popular asset vendors explicitly say that baked lights aren't included since it takes so long for them to do.

I don't know, maybe I'm just making lots of beginner mistakes.

If anyone out there uses baked lights in their game and can speak fondly of it, I'd love to learn from you.

[main abyss]

Hi. Can 2D lights shine on multiple layers ? I have objects on 2 layers and light shines only on the same layer the light is on

I checked that on built in renderer lights effect all layers, why 2D URP lights would act different ?

[deft fiber]

If you have a dedicated GPU, baking using progressive GPU is an option that can speed up the process by an order of magnitude
RoR2 has incredibly simplistic lighting, instead leaning on artstyle, and Valheim is based around dynamic geometry so baking is out of the question anyway
I find the default settings of the lightmapper produce perfectly decent results, but I usually tune the resolutions/accuracy to about half if it's not a final bake

[rocky echo]

Hi guys, how I can see two probe reflections in one mesh? Like in this room i have one small probe reflection, and other one in center of scene, and idk for some reason, but probe reflection in center even with boundary size rendered where it should not be at all

https://cdn.discordapp.com/attachments/497872424281440267/871354414085062656/ViiPFuTQp1.mp4

[deft fiber]

What render pipeline & version is this on?

[rocky echo]

Unity 2020.2.0f1, built-in render pipeline, i guess, i create project with "standard" assets

I suppose it's something wrong here. I hope that it is possible to make a normal mixing of probe reflections based on the boundaries, I should only display the probe reflection in that room instead of the one in the center of the scene

[deft fiber]

Ah, the problem is that smaller room reflection probe is ignored?
Are they separate meshes? I believe probe effects are per-mesh based on its origin or anchor point

[rocky echo]

Yeah, ignored. Here's one mesh, but do I really have to make a separate mesh for each probe reflection?

[deft fiber]

I think you may have to
Probe blending fades two reflections together, it doesn't create borders between reflections

[rocky echo]

Oh, that's sad. Perhaps there is some other way besides splitting the mesh?

[deft fiber]

I can't think of any
HDRP allows spacial blending of probes though

[rocky echo]

Ah, i'll try it, also URP so maybe btw?

[deft fiber]

URP got probe blending pretty recently, but it's just the simple linear type

[rocky echo]

Thank you, yesterday I spent the whole day wondering what could be wrong here, I searched through a bunch of google, and found nothing

[deft fiber]

the blending's a bit hard to explain, but here's how it works with 1 object vs many objects
I can understand your confusion

Two overlapping solid color cubemaps

[rocky echo]

I have worked with other engines that have blending like in world space mode, I could set which polygon to probed reflectioned. I'll try hdrp/urp, maybe the situation will be better there and I'll do what I want

[deft fiber]

Here's HDRP blending cubemaps spatially across objects

[rocky echo]

Ah, nice

Perhaps everything will work quite well in urp, hdrp is more hardware intensive i guess. I don't know how well I can optimize all the assets there, but thank you for your help

[deft fiber]

The docs say that URP doesn't have the blending, or even box projection, but I have a distinct memory of testing them at some point in one of the newer versions
Let me know if it works for you

Just betweem us though I would say splitting the mesh is much simpler than changing render pipeline :p

[rocky echo]

kk, I'll let you know

[rocky echo]

Well, this is partly true, but it is very confusing especially since I do not want to divide the parts of the mesh only for this reflections

[deft fiber]

Why not?

[rocky echo]

Extra drawcalls is the first thing. Also a lot of redundant objects in the hierarchy

I like to keep clean everywhere, so this method is not very suitable for me, unfortunately

[deft fiber]

Static geometry doesn't create extra drawcalls
It's not redundant if it fixes a problem that otherwise requires significant workarounds? 🤔

[rocky echo]

Oh, it seemed to me that there are still extra drawing calls, but ok. Nevertheless I will try to find the most optimal solution, so far I have migrated from another engine to Unity and am dealing with problems that I may have here

[deft fiber]

When objects are marked as "static" they will be batched into one draw call

Multiple meshes can be imported at once, which I can guarantee doesn't clutter your hierarchy

[rocky echo]

There are conventions there, and I don't know them yet. As far as I know - 1 material = 1 drawcall, multiple meshes with same one material also may have 1 drawcall, but idk how many objects can be in 1 drawcall then

[deft fiber]

Yea sure there are countless ways to crank out more speed, even in addition to a lot of the stuff unity does automatically

But really you don't have to worry about that unless it's causing an issue
Best practices are something you pick up over time and become natural, but you can spend an endless amount of effort into optimizing WIP code and content without possibly ever seeing tangible gains

Targeting really low end hardware or doing really performance intensive calculations are good reasons to think about optimization from the beginning, but still probably not at the prototyping phase

[rocky echo]

Yeah, you're right

I just still wonder why hdrp supports space blending of cubemaps, and built-in does not

Maybe is somehow method to move blend samples code from there, but fine. I will explore this case

[rancid axle]

Hi all. Lighting newbie returns
So my light (point, spot) set to baked, i can see the baked lighting being baked there
But changing it to realtime or mixed, the terrain just doesn't receive any lights?
Then i also see this option greyed out. Seeing the docs, it's also greyed out
Well to make it short: i can't use mixed light for terrains. What could be happening?

[river finch]

why is there a light when i start the game

[rancid axle]

I really dont understand light baking with terrain.. From the docs it says, unticking this means the terrain will receive GI from light probes, but that's not happening with mine

[grizzled warren]

Can you name a large 3d unity game that uses baked lights out in the wild? I could really use some inspiration on this topic.

I'm reading that Nvidia has closed off something in the driver that is needed by the progressive gpu, which is why it's not working for me. Although, I worry that even a 10 fold increase won't cut it.

[deft fiber]

Can't off the top of my head
I haven't heard about that sort of thing, I'm using an nvidia GPU and it's worked great, about 10 seconds for a simple scene as opposed to a minute and a half with CPU

From what I understand mesh complexity has a big impact on bake load, not everything static should be lightmap static

[grizzled warren]

Yeah it's just an issue with the older gpu series I'm using

[rancid axle]

Baking emissive stuff, my chara is not getting lit (via lightprobes)
https://learn.unity.com/tutorial/configuring-light-probes-2019-3#
I thought this is supposed to work?

[grizzled warren]

not enough information to make any sort of guess, that top picture is very confusing

[rancid axle]

The top pic is a vine-y object with emissive mat. The whole pic is lit by this vine
The black silhouette is the chara, completely not being lit

[grizzled warren]

with your player selected and light data baked, you will be able to see active light probes in scene view

if the probes aren't responding to the player as they move, then they're not set up right

[rancid axle]

The probes are responding to my chara's mesh
But the active probe is black. So.. i guess it's an issue of the probe not getting the emissives?

[grizzled warren]

yep, black probes means they baked in darkness

that can happen when they're inside walls, are your emissive materials set to baked?

my turn for a question without enough provided information lol

any idea why a tiny rotation in my camera angle results in...(please see the image after this one)

one of my materials going completely black?

This seems to be fighting with real time lights, baked GI is turned off here

[rancid axle]

Is it being lit by some pixel light somewhere, getting culled by camera look angle?

[grizzled warren]

that sounds right, but I'm not sure what to do about it

[rancid axle]

https://forum.unity.com/threads/vertex-point-lights-going-out-when-looking-away-and-out-of-range.543987/

[grizzled warren]

there are several real time point lights scattered around, and one point light above the character acting as a light radius

[rancid axle]

Altho if the left side and right side are being lit by the same light, then maybe this is not the case..

What's being culled should be the light, not the "effect of being lit on certain objects"

[grizzled warren]

yeah it's some kind of interaction between the real time lights

makes no sense to me

[rancid axle]

Related setting is "max pixel light" count on a single renderer

Where can i find default setting/values for Lighting window?

[grizzled warren]

those are created per scene

[grizzled warren]

okay, this makes sense... each object can take 4 incident lights (1-8, i have it set to 4), and in my image the brightest light is being counted as a 5th and being culled

thank you

[rancid axle]

Cheers

Ouch just got out of memory while baking...

[grizzled warren]

i got hit hard by that yesterday, had to poweroff my computer twice

my only conclusion from my struggle is to not use GI until I have a high end GPU

tbf, Blender has shut my computer down just the same, so maybe something to expect with big renders

[rancid axle]

My issue is i'm trying to bake some big terrain. I read in several posts that probably better to not mark the terrain as static and only rely on lightprobes. But this just well, doesnt work..

[grizzled warren]

terrain probes I thought were mostly for trees

looks so much better with baked lights, but yeah there's definitely tricks to learn here

here are a couple shots from when I was testing it last week, this is just a small section of terrain, before:

after:

I'd love to see your results if you stick with it

you need reflection probes, I believe as well

eg, one on each face of a mountain

[rancid axle]

Haha my terrain's still a messy playground. Just wanna pin all the techs down first before actually making stuff

[grizzled warren]

(this is without a light probe group)

well imo, baked lights are gorgeous if you can manage it

[rancid axle]

So u reckon putting this on "contribute global illumination" ?
And my out of memory thing happened before was bcoz either scale in lightmap set to 1 or.. Lightmap Resolution to like 32

[rancid axle]

I mean, that's the plan. But i read again n again that for big terrain, probably better not

Bcoz the terrain taking all of the lightmap UV

[grizzled warren]

big terrain is where we want baked lights more than anywhere else... nothing else can capture the dark side of a mountain quite the same

but, yeah, Lightmap Resolution calls 40 texels a minimum resolution but I also get memory overflow

I wasn't able to bring that resolution above 4 without problems

[rancid axle]

So i really dont understand a light set to Mixed
I have a directional set to mixed, then it bakes, ok
But the faraway shadows are still being "rendered", meaning, the far shadows are not there. Only the closer ones are there
So what's the point of baking the terrain then if i still have this same far shadow missing issue?

The mixed directional light on. Same old "far shadows dont appear"

And that mixed directional light turned off, to prove that the baking really did happen

[grizzled warren]

umm, "faraway shadows are still being "rendered", meaning, the far shadows are not there"

rendered means to draw

if it's drawn you should see it

[rancid axle]

Ah ok, it seems i gotta use Shadowmask mode

Faraway shadows now working (viewed from a really high mountain)

[deft fiber]

Mixed lights act as baked when baking lightmaps on static objects, and they act as dynamic against not-static objects which can't be lit by lightmaps

[grizzled warren]

oh, this is a picture pointing to the tree shadows, isn't it? those are dynamic like patchi is saying, and ignored when baking

[warm geyser]

im trying to use the gpu lightmapper because i dont have an amazing cpu, but im getting

OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_UNKNOWN_ERROR

[grizzled warren]

+1 my friend, it doesn't work with some old cards afaik

maybe check into your drivers

[warm geyser]

my gpu is a gtx 1050ti

which is well known as immortal

[grizzled warren]

geforce gtx 960 here, driver 466.11 isn't working for me.. looks like I can upgrade to 471.41.. oops, let me try that

[warm geyser]

i dont even have a game ready driver installed lmao

installing rn

[grizzled warren]

any luck? 471.41 still fails for me

[warm geyser]

im trying to build rn but im having issues with that

[rancid axle]

But the light is set to mixed, and it IS getting baked(i turned off the light after bake and the realtime shadow with distance disappears, baked shadow without distance appears)

Its just when the lightmode is not shadowmask, the faraway shadow is still being culled, instead of fallbacking to the baked shadow

But yea. Shadowmask works. Not sure why, but read some post about it

I'd expect it works like that for any lightmode tho..

[gentle zenith]

Any reason the shading would look so crappy here?
It's fine in blender

(Blender set to render viewport, no weird artifacts)

Setting soft shadows and changing depth bias helped a little

[grizzled warren]

if those are realtime lights, then these settings in the renderer asset will help

but that appearance can come from baked lights too, and is a lightmap resolution question (found in the Lighting window). I can only wish you well if that's the case 😛

[rancid axle]

Hi all, question.
The bottom white emissive is a river. And then there's a cube that is supposed to be a bridge above it.
I expected the bridge to be lit on the underside, and shaded on the top part, but as u can see the whole bridge is bright lit

If i move the bridge more up, then yeah i get the desired effect. But.. can't i put the bridge lower? Is it something with how i place the light probes?

[grizzled warren]

the light probes should only affect dynamic objects, is your bridge static? (i think)

[rancid axle]

I tried with both. Hold on lemme get more pics

But.. i thought static can still be affected by lightprobes via this option?

[grizzled warren]

ahh, I don't know exactly how any of this works

from my understanding, light probes are little samples in space about the density of light in that area

so even if it's lighting from the top due to light probes, it should still be a drop off as it moves away from the light source

you can reduce the Gizmo size of light probes by the way

[rancid axle]

This is static, receive from lightprobes
And it works, but just not with the desired "contrast"
Seeing from here, i expect there to be more lightprobes above the bridge that makes the top part more dark
And the probes below it are correctly lit, but the effect on the underside of the bridge is not as intense as i want

[grizzled warren]

hmm

i'd recommend finding a point in your scene for comparison that is completely dark

environmental light can confuse things

[rancid axle]

This is getting better..

But i just dont get what contributes to which probes are being used at which direction

Is it by the centerpoint of the object? (Bcoz there's a ball whenever an object is selected) and bcoz the centerpoint of this bridge is.. as seen in the move gizmo?

[grizzled warren]

again no idea, but I assume the probes chosen were the four that are able to contain the player

so, always 4, and if 1 is misplaced, you will have bad light

you might appreciate this AssetStore item: AutoProbe

helps with placement, but, what you're doing by hand is better for control

[rancid axle]

Hmm, yea.. it's always 4 indeed..

[rancid axle]

I wonder how many lightprobes is too many..

[grizzled warren]

Pretty high limit id imagine, they are something that only gets referenced when the player is nearby

[rancid axle]

But it looks good indeed. I dont intend to ever have "final placed scene setup" and will often move things around, so anything procedural would help..

Will totally get it, thanks
BUT, after i figure out this 4 probe/object and what to do with it..

[grizzled warren]

Yeah imo autoprobe really should be a core feature in unity, placing by hand is a stressful thought

But it seems all this mixed lighting stuff is preview still so I understand it's not

[rancid axle]

Lightprobe proxy volume may be my answer

[grizzled warren]

very cool! I haven't come across this yet

[rancid axle]

I just started too

The Light Probe Proxy Volume (LPPV) component allows you to use more lighting information for large dynamic GameObjects
that cannot use baked lightmaps
(for example, large Particle Systems or skinned Meshes).
From that first sentence already makes sense
But i dont get the application with particle systems tho..

[gentle zenith]

Ah, thank you!

[rancid axle]

Yess this is now at least possible

[grizzled warren]

awesome!!

[upbeat trench]

umm yea is there a way to fix this?

[deft fiber]

Depends on what's the issue?

[neon osprey]

No

Since you haven't provide any info at all

[modest berry]

helo

why doe my lighting work in the scene

but not in the game.

wat do fock

now it works

it wasn't working 3 seconds ago

but why are shadows pure black?

[deft fiber]

If scene lighting is not generated properly, the symptom often is lighting working 'sometimes' in editor

[modest berry]

so

how do I fix it

[deft fiber]

As the first thing make sure lighting is generated from lighting window

[modest berry]

and its the shadows.

rn

not the lighting

[deft fiber]

I'm not sure why the generate button is greyed out in your case, but the issue is that the environment lighting isn't loading in for some reason

That should give you something to start googling with

[deft fiber]

Shadows get their color from ambient lighting

[modest berry]

Fixed

[untold bay]

why my lighting off :(

[deft fiber]

Try finding a lighting tutorial for your project's rendering pipeline, see if there's solutions

[untold bay]

im using urp

[candid carbon]

How would I make a smoke/fog effect like this?

(This is not my game this is just an example from RDR2) I really like their fog effect

[untold bay]

i figured it out, i needed to add a directional light and turn on soft shadows, thanks for trying :P

(oh and also point the directional light straight up)

[drifting vale]

This is Volumetric Fog, you can easily achieve it on HDRP using the Volumetric Fog override on the Volume framework;
https://www.youtube.com/watch?v=vczkfjLoPf8

Just o add up, this is one of the best webinars form Unity regarding HDRP Lightning, on 51:00 it talks about Fog:
https://youtu.be/yqCHiZrgKzs?t=3056

[candid carbon]

I don't think I have HDRP on my project, how can I check?

[drifting vale]

Hmm, on the Package Manager try looking for High Definition RP

[candid carbon]

And the default one is URP?

[drifting vale]

HDRP has a different Setup

The default one is the Built-in Render Pipeline. From there you can either choose to go to URP or HDRP

[candid carbon]

Oh okay thanks what is difference URP, HDRP and the built in one?

Is there a good video explaining this?

[drifting vale]

Yes, this video, the first 7 minutes is all about installing HDRP (you dont need to watch after that, because it is more focused on Ray Tracing).
https://www.youtube.com/watch?v=ad9f_nKU0ZA

But wait, just as a disclaimer I would say that HDRP is not very friendly, it takes some time to swallow everything and it might also break your entire project because it treats lightning in a Physically based way (if it is a new project with few assets, there will be no problem)

[drifting vale]

Oh sorry, I just jumped and said about HDRP.
Let me better answer this.

Built in render pipeline is the default and the old render engine from Unity. It is kind of generalist and can do either simple and AAA games.
But, as a cons it is not easily customizable

There is where enters URP and HDRP (Universal Render Pipeline and High Definition Render Pipeline)

They are based on a new render system called SRP (Scriptable Render Pipeline) which is modern and more easy to customize. But since most of us are all indies, instead of Unity forcing us to make our custom SRP based Render Pipeline, Unity provides two out-of-the-box solutions:

URP - A more general purpose Render Pipeline which started as a performance oriented solution. But now it is the most suited for all kind of non-AAA games.
HDRP - A AAA oriented solution, optimized for high-end graphical fidelity

As an indie, Built-in (the default) would do the job. The problem is that it doesn't support Shader Graph and other features (2D Lightning for example). Because of that, URP became the new standard for us indie.

Tried to summarise it all up. Huaha

[candid carbon]

Omg thankyou so much 😁

Really learned me a lot on this one 😁

[rancid axle]

So i really really dont get Mixed light
How can this object (dark), set to not contribute to GI, not be lit by a directional Mixed light?
Actually i change the dir light to any mode and it just doesn't light it up
Layer and everything already set up properly of course

[timber lichen]

hi!does light work on tilemaps?For me it doesnt

[deft fiber]

Needs to be a 2D light and the sprite material needs to be lit sprite

[timber lichen]

its 2d light

but how with the material?

[deft fiber]

Sprite renderer component has a material field
There should be a lit variant of the sprite material among the options there

[timber lichen]

like i put the material on the tile map?

@deft fiber

[deft fiber]

I assume you've already looked at docs/instructions how to do this part?

[timber lichen]

I added the material but nothing works

The tilemap just dissapeard

[deft fiber]

Are you doing it according to how the docs say you should?

There are particular steps you need to take to enable the sprite-lit material depending on how your project is set up

[timber lichen]

I didnt follow any docs

[deft fiber]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@7.1/manual/Setup.html

The main thing is that you need a 2D renderer data configured, and then upgrade the scene/project to 2D renderer before the sprite-lit material shows up
At least I had to

[timber lichen]

I did this

@deft fiber

And its the same

[deft fiber]

Well, evidently not perfectly
Read the all of the 2D light documentation and follow it closely
"It doesn't work" isn't really something I can help troubleshoot

[gilded mantle]

Does anyone know how i can fix this issue

[drifting vale]

On the Light component, try to change its Render Mode to "Important"

[candid carbon]

Now the question is should I switch to URP, and if so do I need to change textures/materials? And is the Volumetric fog also available in URP?

[drifting vale]

On both Built-in and URP you can also do Volumetric Fog, but it is more tricky to do compared to HDRP (either because on HDRP it is just enabling some check box).
For now it would be easier to look on some Assets on Unity Asset Store:
https://assetstore.unity.com/?q=Volumetric&orderBy=1
(The most famous one are Ethereal URP and Aura 2)

But just as a note, Volumetric Fog is Under Consideration to be implemented on URP (but it might take some months or even a year to do so). Literally the last item 😬
https://portal.productboard.com/8ufdwj59ehtmsvxenjumxo82/tabs/3-universal-render-pipeline

[gilded mantle]

it still does the same thing

got it, it was the 'near plane' it needs to be full

[limber delta]

Hey. Does anyone know why this is happening (super bright spots). It's been driving me crazy for some time now. I'm on v. 2020.3.14f1 and using URP. When I bake the lights all seems fine, then I switch to another scene, come back--and those lights are there

Something seems off.

[drifting vale]

What are your Lightmap Settings? it seems you are not using a Filter

This can happen with low Indirect Samples rate where a texel might receive less light contribution and be diferrent from its neighbour texels.

And instead of just increasing Lightmap Resolution and Indirect Samples, you can use filters to solve this kind of issue on a cheap way (time and performance wise)

If this is not the case of your noise baked light result, it might be that your Lightmap UVs could be overlapping. But I am more inclined to believe on the case of not using a Filter option.

Either way, you can check UV Overlaps on the Scene view mode (but it also indicates on the Console with a Warning when it happens):

Where is red, is overlapping

[limber delta]

Thank you for that information, really appreciate it. I checked the UV overlap but it's not showing any red.

These are my lighting settings.

I'm suspecting something is off with the UVs. I will redo them and see if that solves the issue.

[candid carbon]

Alright thanks, sadly those on the asset store cost some money, how can I makeh own or is there a good alternative?

[limber delta]

How do I go about using a filter?

I did UV mapped the object and this time the bright spots are gone. Only that error in the screenshot remains 😅

[drifting vale]

Oh sorry, I never did my own Volumetric Fog. But, it doesn't seems very difficult, but it will of course need some time to research and try some tutorials. On YouTube seems to be some of them (I made just a quick search but didnt watch any) Huaha

[drifting vale]

Hmm, ok ok, the noise I appointed is actually the aesthetic of the albedo texture of the door. Generally the Filter is set to Auto by default so it seems to not be it. At first I misunderstand what was the actual error. Sorry about that.

Now, with a better look, this little white-ish spot on the top-right corner really seems to be some UV overlap.
Did you tried to see the scene on the Scene View Mode I suggested (on Scene View, just click on the "Shaded" on the top-left)? The UV Overlap one.

Just to note, Lightmap aren't mean to use the same UV as the Albedo/Normal textures. Since every side and corner of the mesh might receive a different light contribution.
On 5:50 in this video, it explains the Lightmap UVs differences:
https://youtu.be/KJ4fl-KBDR8?t=351

And also demonstrate the UV Overlaps

[limber delta]

Ah I see now, no worries my friend. Haha, yes, the texture is supposed to look like that (will be tweaked for sure). Appreciate you trying to help.

Agree about it probably being UV overlap. Maybe the islands are too close to each other.
I did check with UV overlap though, but it's not showing any red.

Oh yeah, I know about the differences though I never make manual lightmap UVs. I let Unity handle that.

Hope this makes sense

Hmm, mine is not white. When I turn off "Show Lightmap Resolution", everything is grey.

The baked lightmap looks like this. Looks weird.

[reef quiver]

everything is this blueish. can someone help?

[limber delta]

I think you need to provide some more info.

[stable patio]

did you do Lightmap UVs yourself?

[limber delta]

Hey. Nope, I let Unity do it.

[stable patio]

Try either changing settings there or make UVs urself, it looks like its taking Lightmap from someone else

[limber delta]

Yes, thanks. I'll try. It's still causing me issues.

[limber delta]

Having so many issues with lightbaking, haha. Insane. I've tried bakery as well, but keep getting "Failed to save TGA" error every other time when baking as well as some other issues. Kind of sucks as I can't really rely on baking lights, which I need to to. Not sure how to solve this. The unity baking is causing many many lockups, rather often as well. Quite often I can't bake using GPU either (I have an RTX 3070).

Do you guys have any good workflows tips in general for light baking? I try to keep it simple, but I am relatively new to this so most likely it's on me 😄

[limber delta]

Maybe my settings are too high. Often get the "Hold on for 17 years". 🙂

[deft fiber]

Make sure your GPU drivers are up to date, and try baking a very simple scene with progressive GPU and default lightmapper settings, or defaults turned down

Just to rule out driver issues and scene complexity issues

[limber delta]

Yep, that is good advice. I started about a year ago when I didn't know anything 😄 Many models probably need a "clean up". I'll most likely do that and also check in a simpler scene before adding them to the game project. Thanks!

[dense cosmos]

Does anyone know what might make only 1 of your light sources cast shadows and the other not? (on the same object) They have the exact same settings but only the first light I put in the scene casts any shadows.

[grizzled warren]

this is one of the many things it could be, found in your render asset:

[dense cosmos]

Yeah that's on, cus its casting shadows just fine from the other light source, but for some reason every light source other than the original directional light isn't casting them - even with identical settings

[limber delta]

Should dynamic objects also have lightmap UVs? Maybe it doesn't matter as they're not being baked.

[vague nexus]

Does anyone know why i get this weird semi-circular shadow in my scene? it goes away if i change my directonal light's rotation

Whats the cause?

it also goes away if i change the bias/normal bias to a higher value

[chilly dragon]

so I keep getting these artifacts with my lighting I am spawning pieces of the map with there own light sources. and I am getting things like this I was wondering how I could fix this.

[deft fiber]

Could be the light limit of 4 per object

[visual belfry]

Since it took me a while to find this, figured I'd post here--it looks like Enlighten will be active until 2024, then I'm guessing they'll have an alternative solution or better realtime lighting.

[deft fiber]

This could be pinned
People have been asking about it a dozen or two times already

[spark lily]

hey guys i just made lighting in my project and now i need shadow casters to make the certain sprites cast shadows. i got the component "shadow caster 2D" and assigned it to my player sprite and edited the shape of the caster to the player's sprite, but i just realised that my player animation frames don't match the caster since it is keeping the original shape i made it. any way to make it match the animation frames? i used a script on youtube that makes different polygon colliders in the player's components which all get enabled and disabled to the animation frames, i need something like this for the shadow caster 2D

[drifting vale]

Usually we just use a generic shape to represent the character's collider and the same for shadows. I mean, at least for the colldier, a capsule, or a circle and a box are sufficient disregarding the animaiton frame. The shadows depends of your art direction, how precise they need to be and how it impacts the gameplay. But again, generally a box/circle to represent the character is enough.
If you really need that, since Shadow caster 2D is kind of limited atm, it would also need you to create one shadow caster for each frame. Having to enable and disable it manually (unless you do a script to check what frame it is and activate the corresponding shadow caster).

An easier approach would be with 2D Skinned Characters, were you could attach Shadow Caster to each part of the sprite and it would assume the variety of shapes needed.

[marble sleet]

so i have a problem to do with the 2d pixel perfect lighting

i have this spot light

i don't think it's supposed to do that

instead of aligning to the pixel grid it's like, rendering at half the resolution and then upscaling or something?

doesn't look good

anyone know how to fix this?

[hexed linden]

I'm working on URP 10.4 and box reflection doesnt work yet. Is there a way to fake it or something?

[deft fiber]

The example project linked here https://youtu.be/2qeNu2QApAM doesn't have this issue
It doesn't have the issue even when upgraded to 2020.3.12f1 and URP 10.5.1 which I used for testing, but a project I made from scratch using the same versions does have this issue

I've been comparing them side by side but I can't find anything that explains this

gets even weirder when importing the example scene into the new project

Light on the left is kinda fuzzy, light on the right is crisp, but shadows are all blurry

I am mystified

[deft fiber]

@marble sleet Did you find any solution to this yet? I found one but it's unwieldy

[marble sleet]

i think it might get fixed if there's no sprites behind it, but then there's not much point having it on at all

[deft fiber]

It seems to me that some version of URP added downscaling for the light/shadow texture
...But not all versions have any settings for it

Here's the resolution setting in URP 12

this is URP 10.5.1

Could've missed it if it's in some other place, but I combed the docs through of all relevant versions

[gaunt sand]

my trees' leaves are shining bright when I get close to them with a spotlight

[deft fiber]

Is that not expected?

[gaunt sand]

no it's night time in my scene the spotlight is a flashlight but when I go to a tree all the leaves light up

[deft fiber]

Usually things get brighter when they're up to a light
If it's odd somehow you'll probably have to show a picture or a video

[gaunt sand]

kind of fixed it put down the intensity now the change is barely visible

[dapper glen]

Can we talk about this ?

[lusty vine]

How do I deal with lightmaps and additive scene loading? If one scene has lights, do they affect the light maps of the other scene? Can I just press "Generate lighting" or do I need to select the scenes I want to bake for?

[calm stump]

Guys I need major help

I added HDRP and something strange is happening

When I move the camera up and down, the scene become lighter and darker

Why?

[deft fiber]

It's adaptive exposure

[calm stump]

How do you turn off?

[deft fiber]

I suppose the docs could tell you that
However, HDRP is designed to work with adaptive exposure so that it can use real world light intensities with its HDR lighting

It may look weird in barren scenes but if you have everything configured right, it won't be as drastic

As you can see in the HDRP example scene

[calm stump]

Oh I see

But my game is set indoors

Is that a problem?

[deft fiber]

No

But you need to configure it right
Study the docs and tutorials throughoutly or you'll be quite lost

[calm stump]

Alright, Thanks for the big help

@deft fiberOh, I got another question

My materials are not showing textures

It's just dark

however, when I use a light, it becomes bright

And shows the textures

[deft fiber]

That sounds a lot like what light does

[calm stump]

Oh

Should I do this

Or both zero?

[deft fiber]

I don't know what kind of answer you are looking for

It depends on the material what values it needs to have to appear correctly, according to the PBR standard

[calm stump]

Oh

Is it noramlly 0?

[deft fiber]

1 for metals, 0 for non-metals

As the name implies

[calm stump]

Oh I see

Thanks again

[timber lichen]

Hello, I've marked all my objects as static and baked light. now... umm, the objects that were supposed to be dark are just black... Like the colour black, not dark black, like in shadows.

[deft fiber]

Looks like the smoothness and normal strength values of your materials are waay off

[timber lichen]

hmmm

nah

the 'blackness' is gone when I umarked them as static

but that looks pretty bad

[sly portal]

Does anyone know what style of lighting is used in the game Arcadian Rift? Finding it very appealing

[calm stump]

He uses unreal

[calm jewel]

HI Im adding a skybox to my game and when I add it shows up in scene but not in game why does this happen?

[deft fiber]

The lighting itself isn't special, but the unique style is achieved with textures of a very uniform smoothness

And distinct color regions

If there are any noise/smoothness patterns at all, they are likewise very clear

[calm stump]

I need help with something

The HDRP uses too much GPU

Any way to optimize it?

Also, for baking lighting, how can I use my gpu for baking?

[deft fiber]

Enable "progressive GPU" lightmapper

[calm stump]

Alright

Should I use HDRP or URP?

[deft fiber]

Question very subjective to your project

[calm stump]

When I use HDRP, it takes like 98% gpu use

[deft fiber]

HDRP is heavy
What GPU do you have

[calm stump]

Oh

3080

nidva

[deft fiber]

Well, it's not supposed to be that heavy

[calm stump]

Alright, anyway to turn that down?

Could it be the realtime lighting?

[deft fiber]

A simple-ish scene only takes about 30% of my 3070 in HDRP

[calm stump]

What the

[deft fiber]

The same scene in built-in RP put it at 100%, which definitely isn't normal

I never found a solution or cause

[calm stump]

You can build your own RP?

[deft fiber]

To some extent, I believe so
Never tried it

I thought the GPU usage problem was because it was cranking out unlimited frames, but I was unable to limit the fps with vsync settings, the built-in project was always at a stable 700fps
Weird thing was, the same scene in URP project was also at 700fps, but with 20% usage instead of 100%

[calm stump]

Oh, so it's not the fps

I think it's the real time lighting

[deft fiber]

I tried looking at the profiler but it wasn't doing anything weird
Just too much of it, apparently

What kind of real time lighting do you have

I don't know your scene or project, it's possible that it isn't hogging the GPU for no reason

Disable lights and objects, see if that improves anything

[calm stump]

Alright

Also

Is the role for doing lighting and using unity called Unity dev?

[deft fiber]

Sorry, I don't follow

[calm stump]

I mean...

I'm a 3D Artist

What job is the lighting and unity technical stuff for?

[deft fiber]

If you mean roles in companies, I'm not sure if they're so strictly defined

Some might be looking to hire lighting artists with Unity expertise, specifically

Or Unity experts with visual level design skills

Often people focus on a skillset and learn to apply it to a variety of engines, or focus on an engine and learn to do many things with it

[calm stump]

Man, all this is hard and confusing

At this point, I think unreal could be better then this

[deft fiber]

HDRP is hard and confusing because it gives you so many options and things you need to get right

Unreal is the same way

If you're a beginner it's much better to use URP or built-in RP first

[calm stump]

@deft fiberDamn

URP doesn't have real time shadows until 2021

version

I'm using 2020 version

[deft fiber]

Most games survive without them

[calm stump]

I see but how do you make good lighting then

[deft fiber]

Designing lighting for a realtime applications means always skirting around and leveraging the technical limitations of lights

Spotlights do have realtime shadows, and you definitely don't have to make everything realtime

[calm stump]

Alright then, thanks for the big help with info

[sly portal]

I see 🙂

[calm stump]

@deft fiber Sorry to ping you but I try to do everything to get it optimize

Frames

Lights disabled

And removing volume

Not a single one works

I think i'm switching to URP

[tired anchor]

I'm looking at adding baked lighting to an already built project. The scenes are just a single asset each with one light, no shadows. I'm wondering if modifying the assets at this point can mess anything up? Also will the baked lighting help or harm the overall performance? Considering its currently 1 light with no shadows. Thanks.

[deft fiber]

Baking lighting in Unity does not modify assets, rather it stores data in scenes for those objects

Whether it's helpful or not depends
Realtime lights consume processing power
Baked lights are saved as textures so they consume disk space, memory and load time when brought from disk to memory

Baked lights appear with more realism, but can't be moved

In your case though one dynamic light with no shadows is practically free on any platform

[tired anchor]

Thanks for the detailed response, that's good info. They are definitely prioritizing performance since it will be played on a Surface Pro.

[sly portal]

When you say not special, is it just some sort of classic glow/lighting? making the environment dark and just amping up the light from very small, controlled locations?

[deft fiber]

There's bloom, some lens dirt, chromatic aberration, surely some tonemapping and that kind of "standard" stuff

[sly portal]

Those are all... big brain concepts for me sadly haha

But it looks nice! thanks for answering 🙂

[deft fiber]

They come by default when using post processing with any of Unity's rendering pipelines

Often games have non-standard features like toon shading that controls how light appears on surfaces, or screen filters like posterization or overlays

which I would classify as "special"

[sly portal]

i vibe i vibe

my guess if I get better at programming before trying to create a game too out of my scope, im def gonna make some glowing cubes to minimize time spent animating or lighting things haha

floating cubes killing things~

[deft fiber]

Post processing is pretty fun and rather non-technical compared to everything else!
https://youtu.be/9tjYz6Ab0oc this video demonstrates well the common effects you could be using

It's a separate topic from lighting, though

[sly portal]

Ah yeah I watched this before bed at some point. Brackeys has been king for explaining general stuff

[storm bluff]

my reflection probe is just the sky anyone know whats happening

[languid wing]

You using baked, custom, or realtime?

[storm bluff]

baked

[languid wing]

Did you bake your lighting?

(with the probe present?)

[storm bluff]

ill try baking again

nothing changed

should the reflection probe be a component or a seperate object

oh my god i figured it out

for each object in the scene you need to set this

any downsides to doing this

[winter pollen]

Why do I have to bake lights in textures with images and with real-time lighting not?
I mean, what would happen, if you would use and update a real-time lighting only once if the game starts, instead of baking the light in many textures..?

[stark temple]

Actually, I think I do know.
Realtime lighting doesn't calculate all the shadows, it processes what is on screen, and it reuses buffers to do so.
There's no appropriate shadowmap that persists from frame to frame in most circumstances (dynamic situations).

[winter pollen]

so would be there a solution to make a room with lightswitch that turn ON/Off the lights only if the light switch changed instead of updating the light every frame?

like a event based light

[stone gull]

Hello, i've set my project to URP but everytime I'm running the play mode, it took a lot of time and I don't why is it that slow compared to standard shader project. Is there a way to turn off the feature that slows the editor in URP like lighting or any feature that I don't know.

[deft fiber]

Not practically
If the camera angle moves at all, or any object moves in the scene, the lighting will have to be recalculated
Baked lights are saved to lightmap textures, whereas realtime lights are saved to screen pixels

[sly fox]

i suddenly get this error spammed in my console after like 30 seconds of playing. Probably something with my flickering lights, but they dont go into negatives

[deft fiber]

What kind of flickering code is it

[sly fox]

no code

just with animation

[deft fiber]

That's certainly unusual

[sly fox]

its not really flickering, its changing to a darker color and then back to normal color

like an alarm

[deft fiber]

You could try debug.logging the light's values to see if they change unusually at runtime

[sly fox]

rip my console then

[deft fiber]

"Collapse" setting may make it easier to see repeated logs
Anyway it's temporary, and you shouldn't be debugging more than one or two things at the same time anyway

[sly fox]

with debugging it very rarely goes in the negative

but it never makes a problem out of it

[west rivet]

why is the object i exported from Blender isn't effected by the directional light from unity?

[timber lichen]

guys i need help

as you notice when i move close to a light it will switch to that light instead of the main light hwo can i fix this?

[azure fiber]

Hello!! I just duplicated a scene but in one scene the light reflects on water and on the other it doesn't

[ancient shale]

do unlit shaders recieve shadows?

[timber lichen]

Depends on the mesh settings

How come nobody helps in here?

[jaunty briar]

No

[ancient shale]

how can i get a standard surface shader to appear more vibrant? i went in GIMP and increased the saturation of my image, but when it comes into unity it looks very whitewashed and faded

[timber lichen]

Its hard to explain but you can turn off scene lighting in the top left below the default tab location and there is like a layer thing and a light bulb, under one of those is lighting settings

[timber lichen]

Emmision

Also just change it in unity

[jaunty briar]

You probably have environmental lighting on which can cause it to look washed out

[timber lichen]

Does anyone know how to fix my issue?

[timber lichen]

^

[jaunty briar]

Is your main light set to 'Important' ?

Sounds like it's switching between pixel lights or something. I'm not sure

[timber lichen]

No

Do I need to set that, and how

[jaunty briar]

I'm not 100% certain it'll fix it, but worth a shot. Just select it and check the 'Inspector' for "Render Mode"

[timber lichen]

Ok thx

Ill try it later!

[jaunty briar]

Do you have reflection probes in your scenes? Might be something up with them in that one scene

[west rivet]

how do you mean?

[timber lichen]

ye it didnt work btw

[timber lichen]

recieves shadows has to be on in the inspector and cast shadows

[carmine oxide]

in a 2d game, how can I make a sprite brighter than it can get in a spriterenderer's color?

like whiter and to a point where it's completely white?

[frosty glacier]

How can I achieve Realtime emission light with built in render pipeline? I've thinked about that, but I can't find any good solution for this

[eternal ermine]

hey guys

so i have a procedurally generated terrain... if I generate lighting... will the lighting be updated at runtime, when the terrain changes? or is the lighting baked for that specific terrain?

[velvet pulsar]

Why do I have leaks like this? The model is completed closed and triangulated from blender

walls are thick

is it a problem of the geometry?

[fast bough]

@eternal ermine I think with procedural terrain you just can't really bake the terrain. Maybe with modern graphics cards you could, but that's a whole different topic

[eternal ermine]

so how would i go about updating lighting in realtime?

[fast bough]

atleast that's the answer i found when i last time looked into it

[eternal ermine]

as when I build my game, there is no lighting

[fast bough]

oh there should be like a lighting of some sort

[eternal ermine]

I mean I have a directional light. But upon building the game, it's nullified or something, idk.

it just isn't there

idk how lighting works lol

[fast bough]

I think i had to make a lighting object I put somewhere in either render settings or the pipeline setting

I think there is a separate lighting setting, i recommend messing around in there

i personally use urp

I can look more closely into it if those very vague tips don't help :P

[olive iris]

I am trying to read the documentation for LOD and baking but I don't understand the documentation for progressive lightmapper. It says not to use light probes, then it says to use lightprobes. And it does not state if it is using lightbaking or indirect or lightmaps etc? https://docs.unity3d.com/Manual/LODForBakedGI.html

[fossil cosmos]

Anyone know why cascading shadows aren't working properly on my project? Took me forever to figure out that cascading shadows were causing this lol.

And with cascading shadows disabled.

[limber delta]

Could it be the UVs? I'd also try adding a shadowcaster and see if that helps.

[graceful beacon]

Can someone help me? I have this weird thing happening when it comes to lighting. If I run Bake Lighting Light (1) stops casting light, but Light (4) will cast light. If I clear the Bake Lighting data, Light (1) cast light but Light (4) will stop casting light. I have no idea as to why this is happening.
Baked Lighting:

Cleared Lighting Data:

[deft fiber]

What type are the lights

Baked or realtime or mixed

[graceful beacon]

I found out when doing a second pass through settings that the light count was set back to 4 (I had it at 8), so now realtime lights work. Also, I originally had them set to mixed, but changed it to realtime. I am assuming baked lighting does not work for dynamic scenes. If I am wrong, please correct me and tell me how I could do it (or point me how to do it).

By dynamic, I mean that the scene starts by placing existing geometry down in psudo-random places. Like a dungeon crawler.

[deft fiber]

You are correct
Mixed lights are considered static when baking light and dynamic against non-static geometry, so you can't go wrong with that really

[graceful beacon]

If I understand this correctly, even though those "rooms" will not move once placed by a script, it is still going to be considered dynamic. Only if they are placed by me, in the editor, and is meant to stay there, is it considered static. Thus the lighting cannot be baked into the mesh/texture.

[deft fiber]

Generally yes
If they're spawned or altered after the game begins and scripts start running, they wouldn't be static

It's possible to bake light into prefabs and spawn them at runtime, but not without some workarounds

To the best of my knowledge, static things are encapsulated within their scene, and cannot be spawned into the scene or removed from the scene
However, scenes can be layered on top of each other

Though staticness isn't an absolute thing, more of a guarantee that "this object won't move so it can be used for occlusion/navmeshes/batching/ other things that normally can't change at runtime"

[graceful beacon]

Oh, so even the workaround wouldn't be a good fit then because I would have 50x50x2, or 5000, room tiles (at least that is the goal). That seems like a lot of data and add a ton of complexity to the save file.

[deft fiber]

The only difference is that you'll be loading lightmaps along with the room tiles
The save file only has to know that there is a room tile of a certain type at certain position, no lightmaps need to be included there
You probably don't need to keep all 5000 tiles loaded at the same time unless they're all seen and acted upon at once
Rather generate the map asynchronously as the player progresses

And unload rooms that are far behind

[graceful beacon]

The plan is to generate the map, unload any rooms that are not within 5 room tiles (these tiles are big, they're 15.06 Unity Units). But that isn't the main concern as the save file is meant to hold the following:
Icon
Mods used
Map data
Map Size
Tile Info
NPC data
Player data

It might just be me over thinking, but it is going to be the whole mapping mod tiles to numerical data points that are going to be the most complex part as I see it, I would need to MD5 or use some other hashing algrithm the actual order of things. Because the main issue is that scene data is going to need to be checked against data to ensure that it's mapping is listed correctly at runtime. I want to ensure as little mod conflict as possible. The other option is to use strings and prepend the mod id to the scene name as an id, but string compares can be messy.

I want to make sure that people can mod this game if they so want without having to recompile the game. Unity already makes that possible by allowing people to exploit C#/.NET's dynamic ability, but I want to put modding as a core pillar.

[deft fiber]

Lightmaps would be just textures stored along with the graphical assets
I don't know what that has to do with saving or mod support

[graceful beacon]

I know that lightmaps are textures, but I mean the whole scene data (which to my knowledge contains more data than the model + textures) with said model. I am also a storage freak, so I want to take as little space as I can.

To my knowledge, a scene contains a reference to the prefab/model, so either way a model has to be carried.

[deft fiber]

Then you'll probably want to stick to realtime lights as they'll take no space at all

[deft fiber]

Carried?

You can load assets selectively at runtime

[graceful beacon]

What I mean is that the model(s) come along no mater what. So my point is that isn't it better to just use the models instead of scenes? The only other option I can think of is to write a shader that generates lightmaps at runtime and stores them in the save file, but I am not good with shaders atm to do that. So I guess I'll stick with what you said in that I should probably stick with realtime lights.

[deft fiber]

I don't follow
You'll load models in a scene if the scene has those models, but you don't have to include the models if you want to load them at runtime instead
Storing lightmaps for every asset in a save file would completely eliminate the storage benefit of not using lightmaps normally, don't you think?
Not to mention that generating them at runtime is practically impossible, and would defeat any computational savings of using lightmaps in the first place

Well, Enlighten is one way to generate realtime GI but still, I'm not sure what problem you are trying to solve

[royal spire]

hello, does the Unity Standard have the Fresnel effect implemented for the metallic/smoothness maps for PBR?

[deft fiber]

Fresnel is an integral part of PBR shaders which unity does use
Do you mean fresnel that you can control or something along those lines?

[royal spire]

no, just wanted to know if the Standard Unity shader has a Fresnel effect built-in for metallic and smoothness maps.

[deft fiber]

Wouldn't really be PBR without it

[royal spire]

so, does the Standard Shader have a Fresnel Built-in?

[stone gull]

Hello, what's the recommended number of lights that will not make the scene laggy and any ideas on how to optimize lightings in unity?

[hallow stag]

Guys, is there a way to apply lightmap manually, while still keeping it batched together (like how unity lightmap automatically does) ?

[bright escarp]

how to fix the ceiling

weird lines after baking

light

[deft fiber]

Check for lightmap bleeding

[bright escarp]

how

[deft fiber]

https://docs.unity3d.com/2019.3/Documentation/Manual/ProgressiveLightmapper-UVOverlap.html

[bright escarp]

so its good to add more margin pixel in uv

during modeling ?

[deft fiber]

Lightmap UVs are usually generated separately by unity, there are UV marking settings there if you're going that route

[jaunty briar]

If you want to you can copy your UVs to UV channel 2 and unstack any stacked UVs manually in whatever software you use. I prefer doing this than using Unity's auto-unwrapper. Just doesn't give very good seams. As with most auto-unwrappers..

If it's already unstacked and unwrapped by you, then you can just use it as is without enabling "generate lightmap UVs". It will use the first channel in that case

[bronze olive]

Hi everyone, I have a problem with the lightning in URP. I am making just a simple scene with probuilder objects, and sometimes I just bake the light to check everything is working properly, and on this room there is those noisy spots on the walls, and this is the only place where there is noise. I do not understand why, I was firstly thinking it was because of the lightmap size, but even when increasing it I have that noise... I have the default settings for the lightning Any idea ? Thanks

[jaunty briar]

Have you tried selecting the wall and in the inspector increase its lightmap scale? Although it might just be your indirect samples being too low cause of the shade it's in

[quasi copper]

hi i have a problem with my lighting its like doing a weird thing around my player (its only suppose to be a flashlight in front of my player)

[bronze olive]

I tried to set the scale from 1 to 3 and there is still this noise, (it's even larger now..). Is it because of the lightmap size/resolution ? (I have a crap graphic card so I have to use the CPU and it's taking ages to bake)

[jaunty briar]

I don't know how probuilder does their UVs, so unless it's a lightmap uv issue, I'm not sure what it is. Increasing your direct samples to something a little higher doesn't help either? Like 128 or 256

Sucks to be stuck with CPU though. Takes me a few minutes with my interior bakes using GPU with high samples ><

https://docs.unity3d.com/Packages/com.unity.probuilder@4.2/manual/Object_LightmapUVs.html

might be related, not sure

[bronze olive]

Yup I have a GTX 750 TI with 2Gb, and for the GPU Lightmapper I need at least 4Gb.. So I've tried again with 256 samples for the direct lights annndddd it's even worse. And I've checked all my map this is the only spot where there is this noise... @jaunty briar

[jaunty briar]

It looks like you have stacked UVs 🤷‍♂️

[bronze olive]

I just do not understand why, I've removed all the walls that are not working and replaced them with fresh pro builder objects. And it's still the same issue at the same locations. I'll checked in the "Texel Validity" view in the scene and there is this: (Same view as the last screenshot). So yes there is a problem but I do not understand why? (So normally it's not a lightning settings problem)

I'll continue to dig this down tomorrow x)

[bronze olive]

Ok fixed my problem I am SOOO STUPID. Basically I just made this little room quickly, and as you see there is no roof. But behind the camera there is a huge wall (it's just a plane) so the backface of the wall behind me is just in front of the red area on the previous screen, and this is a problem because the Lightmapper don't know if it's valid or not (completely normal) so i've just added a roof and now it's working perfectly... Next time I'll finish the stuff before baking it.. x) Thanks again. (Here's the article I found: https://forum.unity.com/threads/faq-blocky-artifacts-appear-when-i-bake-a-scene-how-can-i-fix-them.951444/)

[jaunty briar]

Ahh, didn't even consider that. Glad you got it sorted though

[jaunty briar]

For future reference, I think it would fix that by setting your wall to be two-sided as well btw.

[bronze olive]

You mean two sided in the Material (Double Sided Global Illumination) or two sided as part of the mesh ? Because I was wanting to use just planes in order to save performances (instead of having 6 sided walls everywhere), so for a room I only have 6 faces instead of having 6*6=36 faces if I use plain walls

[jaunty briar]

The "cast shadows" in the Mesh Renderer component set to "Two Sided". Backface also blocks lights then.

[bronze olive]

Oh ok, I'll try that, but does that kill performances or it do not affect a lot ?

[jaunty briar]

I don't know how much it adds tbh. Only info I find is "select Two Sided to allow shadows to be cast by either side of the surface (so backface culling is ignored for shadow casting purposes".
It shouldn't render it though. That would have to be set in the shader

[bronze olive]

Ok, I replaced my cast options to Two Sided to check if it helps (it's baking it right now), thanks again!

[jaunty briar]

Yea, just test it out I suppose. No worries

[bronze olive]

After making it two sided it do not seem to change anything, so I'll just stick with the normal "On" option x)

[jaunty briar]

Did you keep your roof on when testing though?

[jaunty briar]

Anyone can recall what causes these artifacts in baking? It's not backface issue (I'm pretty sure anyway) or overlapping.. I know I've seen it before, but can't remember the cause

[stone gull]

is there a good light cookie for a fire?

[stone gull]

is it shadow acne?

[deft fiber]

It does look exactly the kind of shadow validity issue that you were discussing with NaolShow yesterday, which would be caused by nearby backfaces
Maybe do a double check for those

[honest prism]

Hello
i got this procedural planet generation asset and i got this error
Any fix?

[deft fiber]

Check that your editor/project are compatible with the asset
Then contact the author about the problem

[honest prism]

Thank you

[jaunty briar]

Hmm. Nothing shows up in the texels validity view which is strange. Ah, disregard. Apparently it got fixed. He had flipped normals on a wall. So basically, you were right. :p

[brittle owl]

My graphics break in webGL when the graphics are high enough to have shadows. Anyone know why? Could this be because of floating point errors or something?

Generally graphics get worse as the ball rolls further from the start. But for some reason it happens almost instantly. idk if this is the right channel for this but this is the closest to my problem.

Also, in the picture I sent, there shouldn't be darker spots on the ball. They kinda flicker and also the ground flickers darker if I'm close enough.

Here the ground shouldn't be dark and again, the ball shouldn't look weird. Also, notice how the ground is dark only near the camera?

[slim flame]

I have all the lights disabled except one (obvious in the pic), and the ambient light is set to black. All objects have the same URP/Lit material and shader just with different colors. Why are some objects black and some gray?

[azure iron]

I'm using URP for lighting in my 2D game, and I'm trying to add lighting to my particle effects, but under the lights section of particles, I can't drag in my 2D point light into the light slot, it only accepts 3D lights.

Am I missing something obvious or can we not attach light to 2D Particle systems?

[mint halo]

im using the "default pipeline" and i cant find a way to change the filtering mode for real time shadows. anyone know if its even possible? do i have to create my lighting from scratch just to disable shadow filtering?

"point filtering" is what im after, cant find anything online about this

[deft fiber]

Seems there is no such option, unless you're ready to implement your own shadow mapping technique entirely

Or hack it somehow as mentioned here https://gist.github.com/aras-p/6197162

[languid ravine]

yo

What is this weird effect

on my mountains

when I added skybox

Like the texture is getting yellowish

Which I do not want

[deft fiber]

Reflection of the planet?
Your terrain is incredibly shiny

[languid ravine]

yes

the planet is the skybox

and its makeing my terrain shiny

[deft fiber]

Well, your terrain was shiny to begin with, now there's just something to reflect off of it

Turn down the smoothness factor

[rancid axle]

Hi
I'm using render texture and the RT is not being lit like the real mesh
I tried different shader and with double sided GI and nothing changes it

Ok.. increasing the far clip plane of the camera works, but that's not what i want (other players will show up in the RT)
What does the far clip has to do with lighting?

[modest berry]

how do I make light not go through some objects in 2D light?

like, I have walls all around me, with no windows, I want the room to be dark there

and theres no other layers

[deft fiber]

Shadow cascades are calculated using the near and far clip planes

[timber lichen]

I got weird result baked light
I use area light (on the ceiling) but I got some weird circle light
is it about range of area light ? how do I fix it ?

[deft fiber]

As the first thing check for lightmap UV overlap

[mint halo]

i see, atleast i have a direction to go in now

[deft fiber]

If multiple spots in the geometry share the same space in the lightmap, that would be the most likely explanation why lighting repeats or appears in wrong places

[slim flame]

Anyone have any thoughts on this? I'm still not sure what is causing it.

[deft fiber]

The objects with the grey sheen are definitely being lit by something

Hard to guess what without the scene

Perhaps a reflection or light probe that isn't up to date

[slim flame]

@deft fiber I reverted some changes to the lighting in the scene and now I'm getting a blue hue on everything and there are exactly zero blue lights anywhere. Is there an easy way to revert all light settings to the default?

[azure iron]

I'm using URP for lighting in my 2D game, and I'm trying to add lighting to my particle effects, but under the lights section of particles, I can't drag in my 2D point light into the light slot, it only accepts 3D lights.

Am I missing something obvious or can we not attach light to 2D Particle systems? Has anyone here gotten lights to work on particles in a 2D game?

[grizzled warren]

What applications are there for Reflection Probes and Light Probe Groups assuming the scene is populated only with Realtime lights and Baked and Realtime Global Illumination are disabled?

^ This question is coming from the fact that I don't have access to the Progressive GPU lightmapper, and am curious about my lighting options with Baked GI disabled.

I haven't considered Realtime GI since I've read it's deprecated? But, after typing this maybe I should consider it if my primary goal is just to avoid bake times..

Realtime GI is useful for lights that change slowly and have a high visual impact on your Scene, such as the sun moving across the sky, or a slowly pulsating light in a closed corridor. Realtime GI is not intended for Lights that change quickly or for special effects, due to performance cost and latency.

Hm, okay that's good to know, maybe don't need this now.

With both of these GI options disabled, I'm not sure if I'm seeing any use for Reflection Probes or Light Probe Groups..?

[carmine oxide]

in a 2d game, how can I make a sprite brighter than it can get in a spriterenderer's color?
like whiter and to a point where it's completely white?

[remote cairn]

need a custom shader that lets you put in an emission intensity then multiplies the color by it

you want to take advantage of the color picker in unity that lets you put in intensity

[deft fiber]

Correct
Well, you can also have an entirely a new variable for intensifying the emissiveness, but HDR color picker is a more elegant solution

[deft fiber]

As far as I know, light probes are baked in the lightmapping process, so without lightmapping there are no uses for light probes
Reflection probes are separate from lightmapping, and the cubemap contained within can be pre-baked, entirely custom or even updated in real time

[deft fiber]

2D lights aren't "lights" so they can't be used with the particle system directly
https://forum.unity.com/threads/lwrp-using-2d-lights-in-a-particle-system-emitter.718847/ there's a workaround script in this thread that instantiates them as gameobjects in the particles

[indigo silo]

I am looking for someone who has experience with 2d lighting and tilemaps. I have a game like terraria/starbound, and i didnt get shadows done. Maybe someone can help me... 😉

[foggy mauve]

I'm currently using v8.2.0 for Unity2D rendering, and I'm encountering a problem with shadows:

I have a composite shadow caster on my scene, and the shadow caster supports either "cast shadows on self" or not. What I'd like is a combination of the two: I'd like shadows to NOT be cast on the nearest wall, but other walls in the same layer would be occluded. The sprites do have normal maps.

I've tried this shader, but it resulted in pink textures on everything:
https://pastebin.com/gcXpQZF1

What I have:

[foggy mauve]

What I would like:

Does anyone know of a way to do this?

[azure iron]

Thank you!

[grizzled warren]

thank ya'

[carmine oxide]

how can I add saturation to a sprite?

[deft fiber]

Custom shader, selective post processing or directly altering the image asset

[agile totem]

hi, I just imported my trees and they look kinda dark in the under side of the branches/leaves? how do I fix this??

[hoary fossil]

re did the lighting for the Atmospheric house pack.

[timber lichen]

I opened a project from version 2019 with 2020, and the objects have now a blueish/greenish glow, and the floor & wall are supposed to be gray. The light is also set to white. How to fix this?

Fixed: changed from "directional" to "spot", changed the intensity a bit, moved around, then back to "directional", and it works now

[hard grail]

Hey guys, does anybody know what hits performance more on a pointlight?

Do shadows take up more performance or contact shadows?

On a point light

[shrewd linden]

Anybody have any advice for using volumetric lighting in a space game? My understanding is that volumetrics are essentially illuminating fog, but how can I make useful fog in a space game when many of the options seem to revolve around the fog having a height? Base Height and Maximum height aren't useful concepts in space. If I make a sphere volume with a fog override attached to it, is there a way to make that spherical volume have a perfectly spherical fog volume which is denser in the centre and blends out to no fog at the edges of the volume (in all directions), for example?

[versed stirrup]

hey,i have 2 scene and when second scene switch a first scene,lighitn is disable

why?

[hard grail]

Also, when I use point lights with shadows, but turn on 'onenable' ( i only really need to see shadows onenable) they don't work

[dire dove]

Hey all, my ambient lighting is set to use the default skybox with an intensity of 1. I'm also animating the directional light to do a day / night cycle of sorts. When i do this though the ambient / environment lighting is just black.

does the environment light need to be forced to calculate?

hmm.. seems to be related to which of my multiple loaded scenes is the active one. If the lighting is not in the active scene it is doesn't contribute to environment light.

if anyone has any insight i'd love to hear your thoughts

[dire dove]

set my lights to do not destroy and now the ambient light carries across all loaded scenes. Just incase anyone was curious

[deft fiber]

Good to know!

[plucky sandal]

Hi, im pretty sure this is a lighting issue. I painted some trees onto the Terrain and my camera has this circle where the shadows/details are showing but is lacking everywhere else... i went in and unchecked the shadow maps in the custom frame settings of the camera which removed the circle....
however i want the shadows to be present for the entire camera view... does anyone know a possible fix to this?
Thanks

And im in HDRP

[dire dove]

looks like a draw shadow distance value that needs to be increased

https://docs.unity3d.com/Manual/shadow-distance.html

says for HDRP you need to make a volume object and set the shadow properties there @plucky sandal

[timber lichen]

What light would be the best for cracks of light coming out of the wall?

[dire dove]

I would assume spot light

[limber delta]

I got these two plugins and they have worked great for us. I waited for them to go on sale:
https://assetstore.unity.com/packages/vfx/shaders/volumetric-lights-164149
https://assetstore.unity.com/packages/vfx/shaders/fullscreen-camera-effects/volumetric-fog-mist-2-162694

[shrewd linden]

Thanks for the reply! I should have mentioned though, I'm using HDRP (which those plugins don't seem to support)

[deft fiber]

I'd fake it with a transparent mesh or particles

It may not be necessary to run volumetric calculations just for a few subtle rays of light

[delicate sonnet]

I have a hopefully pretty basic question - I am trying to optimise lighting in my scene (I got a few static sources lighting up static meshes) but there is one global light source adding a yellow orange ish tint even when I turn off the directional light I also have - does this come from the skybox or my light settings? Ive been trying to change up a few things there since I want just neutral light instead of the current color but I cant seem to find the right one

[summer aspen]

@delicate sonnet In the Lighting settings there's an Environment Lighting settings, it is applied globally.

[delicate sonnet]

aye, I found that setting but when I change it to color and a grey value there's still orange colored light coming in from somewhere

do I have to bake the lighting again to see the changes?

[summer aspen]

No idea how it influences baked lighting, never used it.

[wispy hatch]

if you change bakes lights, you have to rebake it or turn on auto bake

[jaunty briar]

That definitely sounds like environmental lighting. Did rebaking help?

[timber lichen]

Got a question guys. I have a scene in my game where the player plumets into the basement right into a chair, and a mysterious man ties you up, then walks right out of a garage door in the room. Is there a way to raise/lower it while keeping light shining? For example, when it opens, I want there to be light coming in depending where the lights could come in at, and then when it closes, decrease the light as it closes

[deft fiber]

I got kinda lost
Are you looking for functionality that a spotlight can't provide?

[haughty plume]

i think my answer lies in needing to ask the question, why cant you bake a planar reflection probe?

like, there must be a good reason that option isnt available, like it not making sense or something

[timber lichen]

You guys don't know what I mean?

[fierce onyx]

Fun fact most of the lights in hollow knight were hand drawn

And I'd say it's the best lit game I've ever seen

[formal raptor]

Hey, could I make this tilemap stop the light and bleed through the blocks a little bit? I've tried using fade sprites but outer corners were a huge issue.

Any solution works, doesn't necessarily need to be light bleeding
Just need the block to fade to the black on the top

[formal raptor]

Didn't find anything online, refreshing the unread notif bc uh idk

[haughty plume]

is a planar reflection considered an expensive operation?

and if so, considerably more than a regular reflection probe?

[deft fiber]

Extremely so

Reflection plane will cause objects in the scene to be rendered twice

A reflection probe is just an image projected onto an object's surface

[haughty plume]

hmm. thats a shame. i have a mostly top down view the the planar probe does just what i want, i couldnt make a regular probe look right, it kept bending the reflection

[rocky steeple]

Hey guys, Does anyone have an idea on why my lights are acting funky with me mesh and not doing anything on the other 180 degrees

Of course after an hour trying to fix this, ten minutes after I ask for help I fix this by recalculating normals, tangents and bounds on the mesh.

[timber lichen]

Is realtimeGI that react to the object only work in enlighten ?

this is the scene with Progressive GPU baked

and this is Enlighten baked

[deft fiber]

Baked GI is not realtime
Progressive GPU is baked only
Enlighten can do baked and realtime

Enlighten's realtime GI is not strictly realtime either, rather accumulated over time, from what I understand

True realtime GI can only be done with ray tracing implementations

[torpid spear]

Hey guys, I am a complete rookie at Unity so I need some questions answered. I have a little project for a low poly game, but I wanted a kind of hazy lighting. Basically wondering if Im good to go with URP (which seems easier and thus more fitting for me as a total noob) or if I have to go with HDRP and use the volumetric lighting which almost seems overkill

[worthy timber]

hey there, im trying to make a simple rounded (2d- URP) glowy light like in hollow knight behind my player, but the circle shape is making a weird "+" shape everywhere? Its likely a really simple fix but im unsure what im doing wrong here

Solved: Updated to newer version of unity URP and then it suddenly started working!

[tacit fable]

Hello does anyone know a video or unity learning thing for good lighting?

[near bison]

I'm using Unity 2019 LTS. My lightmap settings are stuck on enlighten (deprecated) and the dropdown is greyed out. Does anyone know why I can't adjust this setting all of a sudden? I have a 3080 and it's worked fine in the past.

[violet night]

have u enable the baked global illumination?

[near bison]

No, I hadn't that seems to have fixed it. Thanks!

[delicate sonnet]

any idea whats happening to my object here when I bake lighting?