archived-lighting

[subtle night]

using urp

[frigid bison]

WOW! thats so cool

[subtle night]

anyone knows?

[neon pebble]

Project settings>Graphics>Lightmap Modes

did you check this section. Is it set to custom or automatic

also what render pipeline

did you try urp

or do you have complex project

hmm

is this happenign on all plattforms or like only mobile or desktop

very weird problem here.

[languid blaze]

I'm putting down some reflection probes in a scene with lots of rectangular rooms. Is there an easy way to expand a probe until it runs into colliders?

I guess I could write a little editor script...

[west flax]

Anyone?

[languid blaze]

seems like bad normals to me

If you have smooth shading enabled, you can get very weird normals around hard edges

(since the normals will be getting interpolated between those two faces)

You may want to use an Edge Split modifier to make those edges hard

let me get an example..

Both are smooth shaded. The cylinder on the right has an Edge Split modifier.

The cylinder on the left has all of its vertices welded together. The one on the right is going to wind up being two discs and a tube.

after applying the edge split modifier and dragging the ends up/down

Here's an example closer to what you have.

smooth shading, smooth shading w/ edge split, flat shading

[distant yew]

Okay hear me out. I want the scene light to come in at a 45 degree angle .. but my character shadow to be at a 90 degree high noon angel. How?

I thought of putting a second direct light in and got it to only apply to the character but now I need his shadow to apply without it lighting up any of the scene.

I need the ground to accept 2 shadow sources but only 1 light source.

Yes I know this is unnatural looking. That's the point, lol

[chilly kettle]

You cant have 2 shadows and only 1 light on the ground, because shadow is nothing than the absenence of light.

you could fake the light of the character

[languid blaze]

I think it'd be easier to fake the shadow than it would be to jury-rig the lighting system to work this way

[distant yew]

I suppose your right and projection map the shadow or something...

[languid blaze]

maybe just a decal?

[distant yew]

Yeah like a decal

[languid blaze]

Decals can control a lot of things (albedo, roughness, normals...)

a pure black decal should be enough already

you'd also make it max out the roughness so that you don't get a shiny surface

[distant yew]

Basically going for the crash bandicoot remake appearance of having scene lighting but crashes shadow is always directly below him they do it but not in unity

They have a real time AND a circle fallback decal shadow

But no other objects cast shadows like that so they have some kind of way to do it... Calculate his shadow from a different angle

But again... Not unity I don't think.

[kind kraken]

Is it possible to limit a directional light to affect objects in a delimited volume? (HDRP)

[kind kraken]

I thought to use two different sets of lightmaps for the same scene but what if I want the lights to be realtime?

[tired inlet]

Hey @deft fiber coming back to this problem, I've tried to pin point it and haven't yet been able to

So in order to try and figure out the source I have turned off all the lighting in my scene

The scene is lit by lightmap only at this point, and the pizza box (a dynamic object) is lit by the light probe volume

I am pulling my hair out over this

There's more places this is happening in my scene, but the pizza box is the clearest point to show it off on

Hope you don't mind the ping 🤞

WAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAIT A MINUTE

On the volume override for the probe volumes there's a sampling noise adjustment

It's the probe volumes

By default animate sampling noise is off, but that's the one that makes it so that TAA can attempt to delete the noise

Enabled it and now it's no longer an issue with TAA enabled

Of course I realise this only after pinging you so I'm sorry ❤️

And hopefully this will help out anyone else trying the experimental probe volumes

[deft fiber]

Ah so this is an APV specific setting?

[tired inlet]

Correct! it blends probe information with a dithering noise to smooth out harsh results, but also gives this unwanted artifacting when not combined with TAA AND having the animate sampling noise activated

These settings live on the probe volume settings override

[deft fiber]

I see, didn't know they relied on denoising as well
Always remember to include the info like of what kind of light sources you're working with ^^

[potent siren]

Ok so im having yet another issue. Whenever i go to bake reflection probes in my scene i run into the issue where i get these errors and then no reflections. Ive baked the lightmaps already and even baked the light probes. Any ideas as to how to fix this? The other two screenshots are of my reflection probe in the scene and in the project files. Also note that in my project files it shows a reflection as you can see but for some reason you are incabapable of seeing that reflection. Again if anyone knows a fix that would be great.

Also for reference here the last 2 screenshots are from the scene before and after baking, i need to slightly readjust the power levels on things for it to look better but even without that there is still the issue of the reflection probes not being baked at all. You can see reflection on the first image but none on the second. If anyone again knows of any way to fix this that would be great.

[chilly kettle]

i would try baking with a little more texels per unit

[deft fiber]

Perhaps the textures are compressed in the second image but not the left image

If you change the texture meta data for the lightmap directly, I think it's possible that it ignores that on import and uses the compression quality defined in the lighting settings asset instead

[errant plank]

When I opened my unity game, my baked lighting was stuck at the part where they were making baked lightmaps for me, now my whole maps are pitch black is that okay still? Or do I have to. Rebake it

[hot beacon]

hi, i jsut create LOD, and just realize they doesnt have bake lightmap data, and i dont want to bake the scene again,is there anyway to use the lighmap texture to other game object?

[deft fiber]

You should be able to view to texture data in the lightmaps via the Baked Lightmaps tab to see if they look correct there
If not, you'll have to rebake
Make sure auto-generate option is disabled

[potent siren]

Ok so im having an issue where basically im trying to use area lights in my scene. I know how to bake objects and im just fine with that but for some reason the area lights will never bake. All meshes are marked as static and the light obviously is set to baked cause it doesnt allow realtime. So even after baking the thing wont bake into any of my meshes. Anyone know a fix for this?

[chilly kettle]

Well, as you explained it, it should work ^^

[potent siren]

it should but sadly doesnt

[azure river]

can someone help this happens when i bake my lighting and also none of my lights work

[chilly kettle]

Chapter 15
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/

[chilly kettle]

Did you generate Lightmap UVs for your models?

[potent siren]

yes

every other light type works

point lights will bake perfectly

but my area light wont even bake

[azure river]

i did what it says to do nothing changed

can a water shader mess the whole thing up?

[chilly kettle]

you clicked on generate Lighting? 😄

[chilly kettle]

can you show me the "texel validity" view?

[potent siren]

yes

i can even go to the lightmapped view in the scene and itll show the lightmaps

and i can go to the lighting settings and see the baked lightmaps

[azure river]

im kinda new to unity so where is that?

[chilly kettle]

?? i think you said you did what chapter 15 told you 😄

[azure river]

ok what does it mean if some of it is red?

[chilly kettle]

Weird.. i would try to have a look in a new scene. Place just a unity cube, set it to static, and a area light, and bake. See if it works

[chilly kettle]

15.1 Why does this happen?
Sometimes, invalid texels can be the cause of blocky artifacts in a lightmap.

Unity can mark Lightmap texels as invalid under the following circumstances:

When a given texel has not received any illumination via direct, indirect, or environment samples.
Rays originating from a texel have intersected back-facing surfaces.

means you have exposed backfaces

Show me a screenshot

[potent siren]

yeah imma try that

[azure river]

thats the same spot

and its not just that room its the objects that have a roof

[chilly kettle]

that looks okay

[chilly kettle]

are you sure its the "Texel Validity" scene view mode?

[azure river]

and this this inside the room

yes

[chilly kettle]

Show me the Bake Settings

[azure river]

on the right

[chilly kettle]

Ok.
Set the max size to 1024, because 512 is a little low.
And i would try to add a few more bounces. Maybe like 4 and try again

You have 14 Lightmaps of 512x512, that means you can easily make it to 1024.

[azure river]

ok im baking it

yeah no difference

[agile lodge]

why is my lighting doing this all of the sudden?

[deft fiber]

exceeding light limits per mesh

[agile lodge]

Best way to fix something like that? Like having multiple torches around an environment?

[chilly kettle]

the more lights you have the worse it gets

how many realtime lights you have in this room?

[agile lodge]

9

plus the player light so 10

[chilly kettle]

u cant have more than 8 per mesh

if you are using URP

[agile lodge]

what counts as a mesh? and what is URP

[chilly kettle]

hmm. i guess we have to start from scratch 😄

Your ground is a mesh. the undifined amount of polygons connected together

your wall seem to be another mesh

URP is the Render pipeline from unity for low to midrange hardware

https://gamedev.stackexchange.com/questions/199449/how-to-enable-more-than-8-light-sources-in-urp

You should bake lights, to avoid using this many realtime lights, because they are expensive

[agile lodge]

Okay so I need to change them to baked lights and that should fix the problem?

[chilly kettle]

you should always bake lights, when they do not change (e.g. turning on/off, chaning intensity etc.)

[agile lodge]

ah alright well thank you!

[agile lodge]

well, all of my lights are baked and its still affected by being too many on one mesh

Is there a different method of baking lights that I dont know about?

[deft fiber]

@agile lodge The simplest option is to use more meshes
For example instead of one big floor that stretches across rooms, use just one floor per room

And decrease light ranges to be no larger than necessary

Your lights aren't fully baked if the light limit pop-in issue is visible still

If you can get by with just limiting meshes and light ranges, baking won't be necessary

[agile lodge]

Is there any cons to light baking?

[deft fiber]

I wouldn't perhaps say "always"
Mainly because the workflow is slow, limiting and very easy to get wrong

[agile lodge]

Is there an easier way to get like plane structures to snap together and be right next to each other without clipping

[deft fiber]

Aside from complexity, it limits forces you to work with static geometry and requires storing and loading a lot of textures

[deft fiber]

Hold V, then you can click and drag the plane from its corner to another plane's corner so it snaps

[agile lodge]

You are a life saver

I have been adjusting the x and y my whole dev process

By like .01 numbers

[deft fiber]

You can also hold control while dragging the gizmos to snap to increments, which lets you easily move them in the grid if they're of standard sizes

To effectively or even successfully work with light baking you'll need to know a lot of concepts you might not be looking to spend time learning at this point
You'd have to on some level understand stuff like staticness, light types like mixed vs baked, lightmap UVs, texel validity, light probes and lightmapping device options and settings

It may be simpler to try to work around realtime lighting at this point

If the light limit per mesh seems prohibitive, other options that can remove it are the deferred rendering path (which has drawbacks like not support unlimited lights for transparent materials) or forward+ rendering path (which is new and unstable)

[agile lodge]

I can most definitely work with the mesh and realtime lighting thank u for the info

[modern badger]

Hey everyone,
I got a bit off an odd problem when baking lights in my project. After changing some settings of my lights (prefabs) I regenerate my Lightmaps. This works well 2-3 times and after that lots of my interior seems to lose the lighting/only gets affected by GI. You can see the table suddenly reflecting the skybox instead of being a dark surface and the sofa on the right being very reflective. I didn't change the Lighting settings.
Anyone got an idea what could be the cause?

[chilly kettle]

Do you have reflection probes there?

[modern badger]

I don't think so, they should show up in the light explorer, right?

[modern badger]

I placed one in the middle of the scene and it seems to have solved the issue. I increased the area to cover the whole scene, is that fine or should I put in more probes instead?
Also, could you maybe explain what the reflection does in this case and why it was working before? Thanks a bunch!
These are the settings for the table for example:

[chilly kettle]

If you have no reflection Probe, your reflective materials just reflect the skybox.
Normally you want to place a reflection probe in every room, or in every place of your game, that has a different environment.
Then you bake it.

[modern badger]

But then why did it work before? I did not create this project, so its possible that someone had reflection probes, baked the light and then removed them? That seems weird to me.

[chilly kettle]

Did you do something with the Material, Shader or Textures?

[modern badger]

I dont think so, its just turns many materials into very reflective ones when it happens.

Maybe I have a weird way of thinking how it "should" look like

and the materials are just too reflective

[chilly kettle]

i never seen this happening when baking light. That cant be the reason i think^^

Show me the material of the table ^^

[modern badger]

It is set to be quite reflective

[chilly kettle]

Yeah.
So if you want this table to have a metallic look, you can keep the metallic as it is and just change the smoothness slider to something like .2

[modern badger]

I think I understood the issue now

As you said it will reflect the skybox

the originals project skybox is empty/gray

i readded it

[kindred tendon]

Hey everyone. Is there a way to make some text mesh pro text get affected by light?

[arctic isle]

yes, assign a lit material to the text mesh pro object

[kindred tendon]

I've tried doing that, but there are a lot of lit shaders. And they all either make my text pink, low resolution, white boxes, etc.

I'm also trying to make some UI images get affected by light and I got that working using the Sprite-Lit-Default material (although, it seems like that stops them from being affected by masks - not sure what to do here). But that material doesn't work on TMP.

[whole bramble]

does progressive cpu lightmapper work faster if I attach more ram on my desktop?

[crude stump]

My terrain is shiny and I don't know how to fix it. I can't switch the Environment Reflections Source from Skybox to anything else without removing the reflections on water. I just want the ground to not be shiny.

I've already disabled the Alpha Source for both the texture and normal map. No dice.

[crude stump]

Took me a bit but I think I figured it out. Needed to change this:

[arctic isle]

make a new material and apply it to the text, don't change the shader on the existing material

[arctic isle]

not really

[kindred tendon]

And that creates me a Sprite-Lit-Default by default. If I attach it to my UI images, I get this _Stencil property error. They also stop being affected by the Mask component.

And when it comes to Text Mesh Pro, I don't even know where I'm supposed to attach that material.

[arctic isle]

Take a look at these shaders https://forum.unity.com/threads/plans-for-hdrp-compatibility-for-tmp.660598/page-2#post-7081120

[chilly kettle]

Hey! Does anyone have an idea how i can make sure, that this tile of stones at the bottom dont look so out of place? (screenshot 1)
The terrain outside is baked and the inner part with the labyrinth is generated and uses lightprobes (in fact all pieces use the same anchor, that sits in the middle of the labyrinth) my only idea is to go back and let every piece gets its own light from lightprobes. But the proble is, that the stone tiles dont have a nice, even lighting and you can see the seems between them. (like in Screenshot 2).

[deft fiber]

In BiRP you used to be able to use Light Probe Proxy Volume component to blend multiple probes
In URP there is no support for it, so the only option (aside from dynamic shadows) is to use APVs

But I don't know which URP versions or platforms support APVs

If any

[chilly kettle]

i guess i have to deal with my lighting problem then 😄

[deft fiber]

I think your best bet is to hide this limitation

Don't have shadows be cast onto the play area and the problem is as good as gone

It may increase gameplay clarity as well

[chilly kettle]

but loses charme 😄

[river hatch]

Hey hey, I just posted my question in the terrain channel, but actually this might be more appropriate...

I have a problem with baked shadows on terrain trees (everything works completely fine with hand placing trees on terrain). Using URPin Unity 2021.3

My terrain trees don't receive baked shadows if my light is in mixed mode when I generate lighting. All is fine with fully baked or fully dynamic lights. Dynamic shadows work fine in dynamic or mixed mode. Baked shadows appear exactly as they should in baked mode. Only problem with terrain trees - shadows work fine on the terrain itself, or anything that's hand placed.

Anyone have any suggestions what might be happening? Once again it's baked shadows not being received by trees, but only with mixed lights, and only for the terrain trees, nothing else.

[river hatch]

Ahhh, looks like it's a bug with that version of Unity - exact same set-up in 2022.3 appears to work fine.

[kindred tendon]

Hey, thanks. Those shaders help me add different effects to a text and even some sort of lighting. But they don't make my text get affected by Spot Lights 2D, Global lights, etc.

[rocky fox]

Hello! After some googling I've found some confusing answers on how to use externally rendered lightmaps. I'm trying to create a lightmap in blender and import it into unity, can anyone explain how this can be done and what exactly it needs generated?

[deft fiber]

I don't think it's an officially supported workflow
Why's the progressive lightmapper not sufficient?

[rocky fox]

I see.. A custom lightmap allows me to have more flexibility with my stylized textures, as of right now I'd like a custom lightmap to emulate pixelated lighting (by downscaling a lightmap to be pixelated and possibly modifying it too). It's also easier to get lighting to look right in blender too imo

Interesting to hear it's not officially supported though. I've heard a good few times of people who make their lightmaps in blender to use in unity

[deft fiber]

The lightmapper does a lot of things, as it creates a new UVs for each lightmap texture that includes multiple separate meshes, and extra maps if using shadowmasking
Instead of trying to modify that process it'd likely be more practical to make a shader that implements entirely custom lightmaps in a way that isn't so complex

But different much simpler options are to directly modify the generated lightmaps in an external editor, or use custom shaders that interpret the lightmaps in a particular way

here's an example of a Unity lightmap that I simply dithered in an image editor after baking

[rocky fox]

Wow! That looks really great

Okay so maybe I wasted all day trying to figure out how to do this in blender haha

Thank you so much

[deft fiber]

Here's a different effect that applies a stepped gradient onto the lightmap texture in the shader

As proof of concepts

The above dithering technique was really promising, but since there was no way to ensure that lightmap resolution and texture resolution are equal, I was planning to combine it with the second technique and do the dithering and pixelation all in the mesh's shader

Wouldn't require the extra step of editing the lightmaps either, but implementing that kind of shader was a bit too much math for me at the time
So it's still a good compromise to edit the lightmaps in post

Also, no need to pixelate the asset since you can bake at low resolution and set the texture filtering to point / no filter in import settings

[rocky fox]

Yea I'm not ready to pick up more advanced shader concepts yet 😅 I'm okay with the densities not matching up if it's not too jarring

About the lightmaps, I'm not really sure what any of these signify. Do you know which'd be the one I should look into editing?

[deft fiber]

the "light" one should just be a snapshot of all the light as it hits the surface and the one to edit

"dir" is a directionality map used for specular reflections, and not one you can practically edit
If you're going for something stylized or retro, it may be better to not bake with directionality at all
I think it may be a bit of an expensive effect as well

[rocky fox]

ahhh okay, yea I didn't know I had that enabled. Thanks ^^

[chilly kettle]

Hey. This is a channel for lighting in Unity, if you need support in Blender, i recommend a Blender Discord ^^

[crude edge]

ah i see

thanks

i thougt this was blender, but i'm just blind lmao

[chilly kettle]

But i think your Ambient Occlusion is not working correct

[crude edge]

it is, as it's all ray-traced
but it's still just off lol
/shrug

[rocky fox]

Hi! Is anyone familiar with the process of swapping out lightmaps? Ideally would like to pre bake two lightmaps in unity and then swap from one to the other when called.

For example I'd like to have this spotlight without all the other lights in one lightmap. And then after some point I switch it to another prebaked lightmap with all the other lights activated

[chilly kettle]

https://www.reddit.com/r/Unity3D/comments/gwjtl1/swapping_lightmaps_in_realtime_practical/ Second result in google 😄

hope that helps 😄

[rocky fox]

I looked into that earlier but didn't use it for some reason, forgot why though let me double take

Ah yes, it supposedly adds a lightmap per gameobject? I'd want a lightmap to be applied to the whole scene for performance reasons

[chilly kettle]

Well, every static gameobject has a lightmap attached, i guess you have to switch the lightmap on every object that uses lightmaps

But i never did it. If you can spend some money, there are plenty usefull assets out there. i guess some are also free

[rocky fox]

Ah, in my scene baked with the unity baker I just have one big lightmap for everything. I figured there would be some easier way to just switch between two of them if the scene is identical

I'll be testing a couple free assets. Though I might just go for the Magic Tools lightmap switcher if I can't figure it out practically, though it seems a bit overkill lol

[chilly kettle]

Yeah its a great tool. Eugene (the owner) always helps people on their discord

[rocky fox]

I'll be considering it, thanks for the help ^^

[potent siren]

Ok, so i have a world in unity, this world has a a bunch of lights mainly being area lights to get the most realistic look i could get. Well i baked these lights and it works great everything in the world is looking amazing. But i have one slight issue when it comes to non static metallic objects. I have light probes baked and it works fine for everything that isnt metallic but ive noticed that when i have a metallic object that isnt static it turns straight black. There are too many lights for me to make them mixed for performance reasons and most of them are area lights so i cant even make them mixed. Is there any way to make it so these metallic objects dont look black? for light related objects i have point lights, area lights, one directional light, reflection probes, and light probes. If there is a setting in one of these to allow the non static metallic objects to work that would be great. And if there is something separate i could do to make it work that would also be great.

note this is an indoor area for most of the map with a directional light for the exterior only

so i cant rely on mixed lighting with the directional light cause it doesnt touch all of the map

[deft fiber]

Metallic objects reflect no ambient lighting, but the cubemap from reflection probes or the scene sky only
Make sure the reflection probes cover the area and have valid baked cubemaps in them

[potent siren]

Got it, i mustve messed up a setting wih my reflection probes by accident

[vagrant flume]

Anyone know if it's possible to bake multiple lightmaps for one scene and then swap between them at runtime?

[chilly kettle]

It’s like 5 messages above 😅 #archived-lighting message

[dire eagle]

I'd like to change the ambient lighting on runtime via script.
using UnityEngine;

using UnityEngine;

public class ChangeAmbientColor : MonoBehaviour
{
    public Color newAmbientColor;

    void Start()
    {
        RenderSettings.ambientLight = newAmbientColor;
    }
}

Unity Muse tells me this. However I can't resolve the RenderSettings class. Any idea why?

[rare anvil]

After experiencing the joy that is Lumen in UE5 I'm curious if we have any 3rd party solutions on the UAS yet that could handle lighting in a similar way for Unity. Anyone can recommend something to look at for URP yet? 😄

[arctic fiber]

I'm having an issue with baking emissions.

All of these neon sign letters came from the same FBX. They are all using the same material, all have the same settings (other than transform positions) and yet these 3 specific letters refuse to bake the emissions. Any ideas?

[chilly kettle]

Are they also same mesh?

[arctic fiber]

no each letter has it's own mesh

well the fbx is all one

[chilly kettle]

is there a specific reason for that? ^^

[arctic fiber]

cause that is how the asset was given to me

I wanted to see how it would look in the scene first. I had the plans to merge it to a single mesh in blender

[chilly kettle]

i would try to just join the mesh in one and give it another try.

[arctic fiber]

aight

[chilly kettle]

the only thing i can imagine is, that there is no emission on the "H, E, S" but .. dunno

[arctic fiber]

¯_(ツ)_/¯

[deft fiber]

Enabled "generate lightmap UVs" in mesh import settings?

Maybe neon tubes are just prone to failing!

[arctic fiber]

yes

I am currently merging the letters to a single mesh and exporting it back to unity

[cloud swift]

Could anyone help me out. I'm getting this jitter on my players hand. I turned the material Unlit/ zoomed in on scale to get a better gif. I've turned off animations. Only rotation being affect is the camera. Only happens when the players rotates fast

I feel like I've reset everything back to basics and still getting this

[deft fiber]

Something to do with motion blur / motion vectors

[cloud swift]

ah It was the motion blur in the hdrp settings 😉 ty good sir

[dark jay]

can someone please tell me how to add more light layers? ive read the docs but theres nothing

[untold jolt]

Can anyone help me why is my door so dark?

[spring elk]

Hi, I'm trying to implement enemy and player vision using 2D lights. What I need here is to get the mesh of lights other than the global lights used in this project. I mean, I've made all the enemy's and allies' views using 2D Light, and I want to get a mesh or collider of these 2D lights and do what I want with them. Is there a way? Please mention.

[arctic isle]

I think Light2D.shapePath is what you want

So grab all the lights in a list and then access this field for each of them which should give you a list of Vector3s which are the shape of the light.

[arctic isle]

Hey, there's not enough info to go off here, what's your lighting setup? I see you've turned off environment lighting.

[arctic isle]

I don't believe you can do that, but you're right the docs aren't explicit about it

[dark jay]

well, im going to need at least 30 light layers. what can i do?

im using light layers because i dont want to use shadows

[spring elk]

Is it valid for other modes of lite other than that of the Freeform mode?

[arctic isle]

For point lights you could use the angle and range of the lights to calculate the vision cone if this doesn't apply to your setup.

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@17.0/api/UnityEngine.Rendering.Universal.Light2D.html

[gritty fox]

Hi ive been looking into some "IES files". I was wondering if they would be any help with making my lights look like actual lights like the first picture and how do I get them?

[deft fiber]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/IES-Profile.html
IES profiles capture the shape of a light and you can simply assign one to your light component
That's not strictly what's necessary to do what your pictures are demonstrating though

I would use an emissive material and a spot or area light to simulate that kind of light pane, instead of a point light like in the second picture

[worthy trail]

What would be the best way to use this for lighting? I mean one point light obviously doesnt work. Should I use emmisions?

[deft fiber]

What do you mean by "obviously doesn't work"? The reasons don't seem so obvious from here

[worthy trail]

by that i mean having a point line in the inside of it.

it wont work bc the inside of it captures the light, but near clip plane is only on realtime, where this is baked

[oak dawn]

use this for skybox ambient lighting RenderSettings.ambientIntensity = intensity; or what you seemingly want to do RenderSettings.ambientLight = ambientColor * ambientIntensity; so everything you're doing should work absolutely flawlessly

i'm guessing you should make sure everything's fine with the lighting tab

[uneven topaz]

hey

can someone please help me with this .im placing light probe group but i cant see the cluster
i have all the gismos on b ut still its not showing up

anyone?

@deft fiber

[uneven topaz]

why is there different color shadow

[worthy forum]

Anyone know why light probes don't respect layer masks? It's such a baffling and insane oversight by Unity

It makes so that one cannot make a distinction between lights that are meant to only bake into lightmaps and lights that are meant to be baked into lightprobes (to affect dynamic objects)

[prime ivy]

Hi Guys

i am working on a city environment and this is the road view i can see on my end

whereas, when delivered to developer, the light and reflections change completely

this is how it looks on developer side

i have also provided Quality preset to Developer

and Lighting settings and directional light settings are completely same except the skybox

the skybox he is using is different than the one i am using, what could be issue?

[worthy trail]

any updates on this?

[prime ivy]

the identified issue is of Roughness Map, but i dont know why is it acting weird on developer side

if the roughness map is removed and roughness is adjusted manually, it works fine

what could be wrong

[deft fiber]

Potentially the texture is set as "sRGB" in one end and not in the other

[deft fiber]

If the lights can be purely baked, you could use spot lights or area lights for each side of the light post lamp

[worthy trail]

thanks

[deft fiber]

Emissive materials work too but it's best to let light components do the heavy lifting
Ideally the emissive surfaces could lit the details of the lamp, which the light components might miss or overblow otherwise

[worthy trail]

I see

[cloud swift]

Trying to understand in general how I should go about lighting my scene. It would be aiming towards lighting in like P.T or even phamosphobia. Dark Interior, lights on and off, scene setting night time, everything would be static besides player/using flashlight if lights go out. I'm just getting into the struggle of how I want to go about the lights in the scene. I've been looking up about using baked lighting and switching light maps but it's a hard topic to find understanding on. I've seen about replacing lightmaps at runtime, which I could see if optimized/time spent could work. I'm currently using mixed lights atm in my scene and this an unbaked screenshot. While I've think I've watched about every lighting video/podcast there is, I'm still lacking practice.

Would it be as simple baking the scene for night/lights out and just enabling realtime lights if turning lights on?

ofc it's lighting so I know there is not just one way/depending on what we want, just looking for clarification

[cloud swift]

Also Using HDRP 2022

[uneven topaz]

How to use adaptive probe volume for andriod project

I have a big scene

I need to add light probes in

It will take me hours to setup

:(((

Magic probe just puts too many probes

Any other idea?

[dawn pawn]

Adaptive probe volumes work like this. Use the regular light probes to manually add lighting

[deft fiber]

How big? How complex? How are you placing the probes?
Note that you only need probes in spots where there are changes in the lighting, and can box select multiple probe points and use ctrl+D to duplicate them at an exponential pace
After duplicating them you can delete unnecessary probes or tweak them
For general purposes that should be quick enough to do manually, but there's also this tool to automate it according to your specifics https://github.com/cgaueb/light_probe_placement

[uneven topaz]

I got the probes

But the issue now is

How to get my LODS baked

Im using bakery assest

[uneven topaz]

any idea how to fix this issue

in first picture from outside there is different colours on the wall

and in second even tho im using point light source the area is too dark

[past quest]

hey, so i was playing with the shadows in my game because the default shadows just dont look good, and i tried modifying the cascades, but i dont know how to make the shadows look always like in the beginning of the video? Or in general, do you guys have any tips on how to make the lighting and shadows look realistic in URP?

[oak dawn]

if you want them to be blurry, just increase the shadow distance or decrease the shadow map resolution, though keep in mind artifacts, and if you want to remove the edges i believe there's a few ways like playing with the normal bias, two sided shadows and overall just fixing your meshes

[magic stag]

I'm fighting Unity's lightmap baker really bad, I've spent all day re-baking the scene because Unity misses 1-2 objects every single time. Do all of my objects have to be in camera view to bake properly? I've noticed my view position affects how my objects bake..

Also curious if backfaces are stopping my theorized camera rays from properly helping the bake. Unity says how many objects are in view or w/e when baking in the info panel. I'm so frustrated, help?

Here's the map for reference

[magic stag]

😔 I've re-baked this over 100 times in the past day no joke. Why, Unity?

It's like winning the lottery when it finally goes right. It's an absolute pain to have to change anything that would affect lighting, because that means playing the baking lottery for another whole day until I win..

[uneven topaz]

What am i doing wrong

Even though im using area light its not liting the olace

Place

🥲🥲🥲

Also tried point light source

Why are the colors on wall different?

🥲🥲🥲

Please help me

[deft fiber]

What are the objects that refuse to bake? The progressive lightmapper is functionally deterministic, errors don't appear or disappear no matter how many times you rebake
That is unless the pre-existing lighting cache has some lingering problems, but you can rule those out by clearing the cache before baking
What you're looking at in scene view has no effect on the final result of the bake, that's just the setting "Progressive Updates" that first applies changes to texels that are in view

I'd guess the objects that refuse to bake have no lightmap UVs

[magic stag]

They all have custom lightmap UVs, and the final object(s) that end up not baking are indeterminate, it's usually one of many interior items (a pile of boxes, a tunnel, or an entire segment of the map)

i've made sure all of their scales in lightmap are in the atlas range, so that's not it either

And before you ask, the UVs are in UV2 and I have generate lightmap UVs unchecked

[deft fiber]

There could be multiple issues there that make it look off
Are you using a natively HDRP project with HDRP template scenes, or did you get HDRP by upgrading an existing project and creating the settings for it yourself? Some settings could be off or missing, and you need to have proper HDR exposure for lighting to look right
Are you using PBR materials with shaders that implement HDRP's lighting features? If no to either, they can't look very good under any circumstances
Why does it seem like moonlight is getting through the ceiling? Are there reflection probes?

[deft fiber]

Hmm did you try with the automatic lightmap UV generation? It usually seems to work better with the automatic lightmap atlasing

[magic stag]

Here's an example UV and topology screenshot, this object usually bakes perfectly, but sometimes doesn't, like the rest. The blue light is emissive.

I was doing automatic lightmaps for a bit, but Unity's lightmap UV generator is sketchy at best and causes performance issues when switching platforms.

I'm using Unity 2019.4.31f1 for my VRChat world, so I'm bit out of date here but unsure how out of date as I'm not aware of how often Unity's lightmapper gets updated

That room is black in the previous screenshot because this is the (only) object that the lightmapper refused to bake this time around

[deft fiber]

That might have something to do with it
in 2019 the lightmapper was extremely work in progress
Now it's ready and stable

[magic stag]

Imagine a for loop that goes over a list of fischer-yates shuffled array of indices from 0 to mesh count, and it skips the last 1-3 indices. That's what's happening to me in simplified form

[deft fiber]

If you have meshes with organic/weird/detailed shapes you should avoid using lightmapping if at all possible

[magic stag]

These are mostly clean topology so idk

other than a few parts, the dirtiest topological areas usually get baked flawlessly

[deft fiber]

Even the manual unwrap is UV seam hell

[magic stag]

this turns out beautiful when it actually bakes

[deft fiber]

I guess it's not the issue here though

[magic stag]

well thanks for the effort, it's much appreciated and hearing that the 2020+ lightmappers are better, I might just upgrade & bake this in a new version, then copy the lightmap textures over

[deft fiber]

I guess you also have access to Enlighten for baking instead of Progressive Lightmapper

[magic stag]

that's true, I've never tried it

[deft fiber]

Which was much more developed tech at the time

[magic stag]

alright well hey thanks again, i'm gonna try enlighten & if that doesn't work I'll probably just port the scene to a new Unity version & copy the lightmaps over

[deft fiber]

Good idea! The newer Progressive Lightmappers should have much better features and optimizations overall too
If the new lightmap atlases don't for some reason match the old ones, you may be able to export the scene with just the meshes and lighting as a Unitypackage, with luck there might not be compatibility problems

But you can also manually modify the baked lightmap texture, since it's just an .exr image

Can copy paste the working parts over the failing parts in an image editor like Gimp that can save .exr

There's also a tool to attach lightmapping to prefabs instead of scenes / the lighting settings, that might make them easier to handle though I'm not sure about the compatibility of this
https://github.com/Ayfel/PrefabLightmapping/tree/master

[magic stag]

This is actually genious and I'm ashamed I didn't think about it sooner; just copy the parts that actually bake 😂 😭

[deft fiber]

It seems the simplest ideas occur to us either first or last of them all!

[coarse minnow]

Anyone know what could be causing my issue? Every time I go into play mode it always ruins my baked lighting, and I mean every single time, Even after closing and reopening.

[dry abyss]

Anyone know how you're able to blend between two lighting scenarios at runtime using Adaptive Probe Volume?

is it even possible or am I wasting my time 🤔

[dry abyss]

Everything ive read and everyone ive asked said it was possible, but I cannot find a single source on implementation of APV scenario blending

[dry abyss]

I found out, leaving this here in case anyone ever needs it

only took nearly 2 hours for 1 line of code

[tired inlet]

Any tips on how to reduce these artifacts?

Light radius is 0.15

Adjusting biases do not help

Shadow filtering on high of course

Lowering light radius makes the artifact thinner, but does not go away until 0.025 (basically sharp shadows)

[livid pilot]

Hi guys, why my point light don´t make shadows?

[timber lichen]

Do you have Shadows on

[tired inlet]

Hmm yeah this thing is making soft shadows un usable

Any value above 0 on the radius shows that seam artifact on any point light

Distance from walls doesn't matter either

[livid pilot]

i fixed, it´s just a little bug, i restarted the engine and everthing works fine

[gilded cloak]

https://streamable.com/lej86t

what is happening to the lighting on the right side of my screen as i turn the character? theres no model or anything for the fps character, no lights on it

[night shell]

looks like you are using SSAO and what your seeing there looks like the classic artifacts you get with it

SSAO - Screen Space Ambient Occlusion, which I'm sure you know

but its ambient occlusion in screen space, meaning that it will only work on things that are currently on your "screen"

so as the side railing disappears from your screen when you look away, so does the occlusion from it

[digital sigil]

Hi, I tried baking the scene from the vr tutorial, but I get this pixelated look. (The image is the baked lightmap debug view). Increasing lightmap resolution seems to do nothing. What could be the problem?

[arctic isle]

Hey, in the Player Settings choose HIgh Quality on the "Lightmap Encoding" option

for the platform you're currently on

[digital sigil]

Thanks, that's a lot better !

[gilded cloak]

is there anything i can do to minimize that look? i toyed around with the SSAO settings and nothing seemed to really help outside of just turning it off which looks worse in many ways

[night shell]

sadly not really, like I said that is just the nature of how SSAO operates, it only occludes what it sees on screen so if its not there, then the shading will disapear because it doesn't exist in the screen

you could try to reduce the radius of the SSAO so its less apparent

or if you have some shader prowess, you could render SSAO on a different camera that has a slightly wider FOV, that is then composited back to the main image and scaled up a bit so the "cutoff" of the occlusion doesn't happen immeideatly (your basically rendering more of the scene outside of your game view for the AO to work with)

although its a strange solution admittedly but it will help mitigate it

the other solution is to use lightmapped or some baked AO solution

that is on the scene level rather than as a post effect

[gilded cloak]

i can probably just live with it, was just curious if there was an easy fix. i appreciate the info and suggestions

[sweet wing]

I added a 2d light to my URP 2d project, it works when I add the Sprite Lit material to the sprites, however not getting any shadows even with added Shadow Caster 2D enabled on the mentioned sprites. Pictures incoming

my expectation was that the shadow would be cast from the character onto the rectangle sprite behind it, is this wrong?

[sweet wing]

is this still true?

[sweet wing]

I originally started this project as a 2D without URP and added it later, im guessing it has to do with some of the project settings

[sweet wing]

issue seems project specific, ugh 😦 shadows work fine in a new 2d urp project

[clear iris]

Hi
I have super strange light streaks on multiple of my 3D models's shadows. They look like this, for example. In Blender, the Model looks fine though. I tried fixing it with this tutorial, but the result still looks like that waffle-y shadow up there :/ https://www.youtube.com/watch?v=GelFADvLJXY Anybody have an idea on how to solve this or a resource you could point me to? 3D is still a bit new to me.

[deft fiber]

The only true solution to this is to have continuous meshes with smooth normals across your seams
The cause is that shadow casting must "shrink" the mesh that casts the shadow as to not shadow itself, but the shrinking happens away from mesh seams such as sharp normals or discontinuity gaps

Tweaking the biases can help but in most cases there is no good combination values that's possible to find, with the best compromise exhibiting both of the problems
It's best to keep biases at defaults

[clear iris]

Thank you for the explanation =)! I tried around and somehow when I set the material to Render Face: Both, the result looked like what I was hoping for. It might probably break stuff in the future, though. I'll have to check how/why I can fix it in another way; but that's a problem for future me.

[deft fiber]

Render face: both makes it a bit more expensive and plugs the shadow holes that would otherwise pass through mesh backfaces

But the gap problem still exists

Smooth shaded meshes don't suffer from the issue, and they can be rendered with flat shaded normals using shaders

[clear iris]

I kinda figured, but I hope in a scene with about maximum 40 elements in it, it won't be too harsh on the resources.

Hm, I need to look up what that means, honestly Still very new to the whole 3D thing and I don't yet have all the needed terminology.

[deft fiber]

Which part seems mystifying?

[toxic eagle]

How can I improve lighting so it still seems dark but you can still clearly see trees, enemies etc. My lighting right now is default apart from making the sky box colour a light blue

[dry abyss]

anyone know why my gpu is being so underutilized during an APV bake?

[sonic mason]

im baking with bakery, and all normal maps dont pop out as much as they do when there is realtime lighting ,
how can i make the normal map pop out more without having realtime lighting and only baked

[cloud swift]

Ty for replying @deft fiber , I was honestly testing few things and I didn't bake in the direct lighting yet. I was hoping for hopefully a summary of how I should go about the lighting. From the resources I'm finding. I am using my own settings, I started off with no lighting.
My Settings: Modern Home, Environment Light Coming from moon into windows, giving home some indirect light. Lights in home would be able to be turned off and on.
Gameplay: One Player, Most object's would be static besides doors and some interactables.
My Question: How would you suggest I go about the interactive lights?
My Current thought process: Using baking to bake any static lights in the home and environment lighting/using spot lights to give windows better direct lighting light god rays in a way and using real-time for room/main lights.

I'm just looking for some direction that I'm doing/understanding this.
For games like P.T and some other dark atmosphere games, with interactive lights. Is there more performant ways or ways to get around the issue of lights on/off with being able to bake the lighting.

[deft fiber]

What settings do you mean by "using your own settings"
HDRP settings? Or just light properties?

[cloud swift]

hdrp

my own light settings

atm

[deft fiber]

If you've tried to make your HDRP asset, it could be that you're not utilizing HDRP's lighting properly

"Lighting settings" affect only baked lighting

Unless you know HDRP's features inside out, you should lift your HDRP asset from the HDRP sample scene template

[cloud swift]

ok I believe I am, my apoligies. I didn't start with a blank template on the settings.

[deft fiber]

Toggleable lights are easiest to do via Realtime light components
Swapping baked lightmaps is possible but there isn't a supported workflow to do it

[deft fiber]

These are Volume Profile settings, not HDRP settings

Nevermind I missed the Frame Settings as well

But most of the settings are still located elsewhere, in the HDRP asset

[cloud swift]

and I was under quality HDRP in last pic

No

So I am using the HDRP asset

and ok so using realtime would be ideal for the interactive. I just wanted to be sure.

thank you

[twin sun]

Hey, i wanted to make a Linux build of my game, but i noticed that reflection probes would not work on any distro that i tested it on

well the probes seemed to report no errors, but relfective materials simply looked the same and pretended that the probes wouldnt exist

[vital halo]

I'm trying to bake out my lighting using my GPU and it's taking forever. I don't have much in my scene and it looks like my CPU is being used instead of the GPU - Any idea if this is normal or how I could troubleshoot?

[twin sun]

that has pretty much been my experience so far too

[night shell]

when it switches to CPU its usually because the vram has been maxed out

[twin sun]

better upgrade your GPU just to be sure 😁

[night shell]

I've been able to bake pretty large scenes on the GPU lightmapper, you have to have some fineese with it but the solutions involved are to reduce the amount of objects being lightmapped

turning down the lightmap atlas size

[vital halo]

I am monitoring the VRAM usage and it's only at 7GB of 10, BUT I don't know if that's because it would exceed 7GB were it not using the CPU. I'll test in a smaller scene to be sure

[night shell]

and also turning off some features

[vital halo]

I'll toy around, thanks for the advice 🙂

[night shell]

*allocated vram not necessarily like system max vram

but in my experience usually its because of that

the main tip I found that helps for me is making a custom lightmap paramters asset

and turning down the anti aliasing samples to 1

and using that in the lighting settings window

but also as I've suggested, reducing the amount of lightmapped objects you have helps as well

not every single object you have needs to be lightmapped

I see 193 lightmaps, which is alot

[vital halo]

Hmm okay, any idea how to reduce that count?

[night shell]

.

you can have objects still contribute to the overal lighting

but instead of them being lightmapped they can be probe lit

for instance say you have a bookshelf

with a bunch of book meshes

you can have the main bookshelf frame be lightmapped, but the books themselves be probe lit, but still contribute to lighting (so that means you will still get shadowing/bounce lighting/etc from it)

on the mesh renderer of objects there is a field where you can have an object recieve GI from the lightmap or probe

[vital halo]

Got it, I'll see what I can tweak about that too

[fossil radish]

yo

[deft fiber]

There's no need to crosspost
You have very little shadows, but beyond that there are no specific settings to make a scene look a specific way
Good colors and contrast in a 3D setting come from knowledge and skill in using assets and the available rendering features

[fossil radish]

ok thanks

[tired inlet]

Yeah contrast comes from both light and darkness which can be in terms of having light and shadows, and colors that contast more

Creating more shadowy shaded areas to contrast with lighter open areas

You could also bump the contrast in the post processing artificially, but be careful as that is easily overdone if you don't know what you're doing

[deft fiber]

But like also the kind of assets you use and their textures/materials are just as important to lighting as the lighting itself

[azure river]

anyone know how to fix?

[tired inlet]

On the import settings for your mesh you have to click generate lightmap uv's and then bake your lighting again

[slim vector]

Why I get these bruises after baking?

[vital halo]

@night shell I just wanted to come back to let you know that your advice was spot on regarding the custom lightmap parameters asset - Reduced the AA setting to 1 but also imposed a maximum Lightmap Limit - Reduced it from almost 200x512x512 lightmaps to 6x1024x1024 maps 🙂 Thanks so much for your help

[surreal grove]

Are there any 2d lights experts here? I just posted on here, but maybe this is a better channel for my question? Thank you!! #🖼️┃2d-tools message

[worthy trail]

How can I make something not occlude a lens flare? urp

[stoic hound]

Does anybody know why this is pitch black from some angles but well lit in others?

[polar wadi]

Hello, I've got 40cm thick walls, I still got light bleeding issues. How do I fix that??

[supple coyote]

Hello, I have a problem when I started using EasySave 3.
When I'm loading a scene (for example first mission) the scene is without ligthmaps - this happen in editor and build. This will not happen when I will load a scene without Easy Save 3. The lightingdata asset is correct in Lighting->Baked Lightmaps->Lighting Data Asset but still it shows scene without lightmaps. When I switch to different ligthing data asset and then go back to the good one everything is fixed.

This sample of script repair the problems, but not in build (UnityEditor library). Please anyone have any idea how to solve this?

[sly cradle]

is this for me?

[oak dawn]

yes

[sly cradle]

oh

k

thanks

[tardy jetty]

Hey, anyone know what the problem might be here? I need to bake my scene since there's too many lights, but when I do it ends up too dark as well as splotchy in some areas. From what I understand, all of my probes are set up right.

Left is how it turned out, right is how it should be

[slim vector]

After baking lights I noted that some points of the scene are too white, after checking the maps I noted that these spots are black on a thing called "Directionality"

Do somebody knows how to fix it?

[slim vector]

I kinda fixed by setting the light baking setting to Non-directional

[regal condor]

Strange lightmaps cause strange light effects on this wall, help

[supple coyote]

is Unity saving ligthmaps in some hiddens folder, appdata or something like that?
We have a problem where one player has the good lightmap, and the second one has the bad ligthmaps. They have the same version from steam.

How is this possible?

so we have a game on steam version 1.0 let's say with lightmap

we update the game to version 1.1 and deleted ligthmaps

So after that the players got the update trough steam, but they have ligthmap (and the funny thing, not all of them has this problem)

[arctic isle]

you have very different texel scales (scale in lightmap) for each of the objects. Adjust them so that the squares are even if the two objects are adjacent/part of a larger one like the wall.

[arctic isle]

That's interesting. Are you using auto-generate or are you baking using the Generate Lighting button in the Lighting Window?

[arctic isle]

Hmm kinda hard to tell exactly what's going on, looks like you either don't have UVs set up correctly or the lights/shadow settings are not set up properly

[supple coyote]

I need to achieve this:
Scene1 with lightmaps
Scene2 without any lightmaps, just directional ligth with realtime

[supple coyote]

but I discovered something more. We use additive loading scenes.
When I jump first into the scene2 without lightmaps its working
But if I go to Scene1 with lightmaps, and then go to scene2 where i dont want any lightmaps somehow these scene holds ligthmaps from prev scene

in scene1 I use generate lighting button

I even put the ligthdataasset empty, but still its swaps with lightmaps from previous scene.
SetActivating also dont work here

oh and in Lighting -> Baked Ligthmaps I have none, but when im loading the game, the lightmaps from Scene1 jumps here...

[arctic isle]

And you're using the Generate Lighting button only in scene 1, not when 2 is additively loaded?

[supple coyote]

if I understand your question correctly - yes
Scene1 has Generating Lightmap
Scene2 should have none

[regal condor]

I know but I adjust a lot of value in lighting tab, and I can only change them together, where can I change the resolution

[arctic isle]

Can you try to rebake your scenes, individually? So open scene 1, go to the Lighting Window, at the bottom click "Generate Lighting". But this without scene 2 open.

[supple coyote]

without scene 2 open?

[arctic isle]

These should be done on the objects in their respective MeshRenderer component Inspectors, using the Scale In Lightmap field

[arctic isle]

Yep! That way the lighting data won't be tied to Scene 2 at all

[supple coyote]

but you mean in editor?

[arctic isle]

yes

[supple coyote]

I did that yesterday, I rebake light without scene 2

[arctic isle]

Do you have Light Probes in the scene?

[supple coyote]

yes

delete them from scene2?

[arctic isle]

okay, add LightProbes.TetrahedralizeAsync(); after you switch scenes

[arctic isle]

if you haven't baked scene 2 then they won't show up

[supple coyote]

ok I will try

something like that?

[arctic isle]

It should come in when the scene loading is done, so maybe in your DoAfterNextSceneLoaded or whenever you have callback code to execute as soon as the other scene has loaded

Maybe WaitForAction takes care of that, but you want to do that every time you load a new scene with a diffrent Light Probe configuration

[supple coyote]

ok this did something. In editor works. I uploading this to steam and give a final test

[supple coyote]

@arctic isle OMG this helps. Thank you so much ❤️

could you help me with one more thing about light

This is the Scene1, which has ligthmaps.
Generating lightmaps make much darker scene, but I will handle it

on this screen, I have these strange, white "dots"/ "stains"

not everywhere I have this effect on this map, with the same ligthmaps

here is ok, zero problems. This is other side of the building

[arctic isle]

This is an issue with sampling, you can either increase the indirect sample count or try to solve it with filtering, use Advanced filtering where is says "Auto" and choose OpenImage denoiser and try again. Use a wider gaussian filter size (right underneath) if that doesn't work.

[tardy jetty]

Found out what it was. The blocks that the lights were inside of had shadow casting on, which blocked it from escaping.

[vocal canopy]

Hello, I'm just testing normal maps in 2D and it's all working fine, but IDK why but I have a weird black bordering that isn't affect by light (from what it appears to look like). Any way to fix or diagnose it?

Top sprite is a sprite without a normal map, bottom is a sprite with a normal map applied

[vocal canopy]

Testing out other lights and messing with distance, I can rid that border but it's quite inconsistant

[gilded cloak]

i added a couple of directional lights only affects the Worker layer since my npc models were kind of dark, having some issue where if the intensity is too high it seems to kill the shadows in the scene completely. 0.2 intensity and everything looks normal, 0.21 is shadow disappear. what causes that behavior? the lights for the NPCs themselves are set not to cast shadows

none of the objects in the scene are on the worker layer except the NPCs

[flint osprey]

hello. Im newbie at lightning. I want to make display which emits the light like in real life. I tried emission but its not real time but baked. I would need to make realtime. I tried using point light behind the display but it is shpere but i need rectangular shape. Dont you know how to solve it? :/ thank you 🙂

[deft fiber]

Without raytracing there isn't really a way to do realtime emissive material lighting
HDRP has realtime area lights which are useful for monitor screens
HDRP and BiRP (and URP unofficially) has screen space reflections which can allow emissive materials to give off accurate specular lighting, but not diffuse lighting
Enlighten's realtime GI can simulate emissive materials, but only the intensity and color can change, and the scene must be using Enlighten's precomputed lighting

[ancient laurel]

Is 10 light sources a lot? I put 10 ligth bulbs on my scene and its lagging now even in editor mode. What did I do wrong?

[deft fiber]

Light performance depends on many factors
Which render pipeline you're using, which rendering path, how big are the light ranges, do they cast shadows and what kind of meshes are affected by them, what kind of materials your meshes have

[ancient laurel]

omg, god save me.

[deft fiber]

Oh and most importantly the platform/device you're making the game for, if it's mobile the performance constraints are particularly stringent
God will not save your lighting but if you can provide any of these details we may be able to present suggestions

[regal condor]

how can i remove the seams between meshes

[brave goblet]

I'm hoping someone can help - I'm building a scene into an asset bundle, there's nothing in the scene except a room made out of simple cubes with a standard shader, some simple seats and a single spot light that's using baked lighting.

I bake the lighting then export the asset bundle and then download it in a different project and open the scene.

Once I do this I can see that the lighting is completely different - The entire scene is white except for some objects (which is also weird). I can't for the life of me understand why!

[lost sorrel]

Im pretty new to unity, I have a toon shader and a toon material setup I have managed to get the toon lighting to work on objects but I cant figure out how to make the light affect terrain grass It seems to just diffuse it, could someone possibly help or mention an alternate way of doing things https://youtu.be/2SaLs6dE12w would it be a thing I would have to edit in the gras material

[errant plank]

when I baked my lighting, it started to turn into this

pleas help

[errant plank]

Why is no one answering

[vague river]

Prob bcz no one has a clue yet

I cant help either cuz im not an expert in unity light baking

Sry

[deft fiber]

this warning in your screenshot tells you what the problem is

[slim vector]

Can somebody help me understand what are these dots? Light is baked

[chilly kettle]

Have a look on Chapter 14

https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/

[deft fiber]

Starry skies often cause that

It looks to be indeed the chapter 14 problem

[mellow sierra]

@lost sorrel Stop spamming your question across this server.

[slim vector]

Thanks for helping indentifying the issue, as suggested I tried to increase the samples (you can see the bake settings) but some of the Fireflies still persists, any suggestion on what values should I use?

[deft fiber]

Instead try baking with a black, very dark grey or blurred version of the skybox instead to see if the problem disappears

If you blur it you can still get the light from the earth but not the speckles caused by the stars, if they're the culprit

Then you can swap back to the sharp one and bake reflection probes

[slim vector]

Changed skybox, same result

I'd say it doesnt depend from the skybox, the artifact generated should have been at least different

[deft fiber]

Then I'd test for other issues like chapter 16 and 17

[slim vector]

Idk if I'm going in the right way but I noticed that just by toggling ON "generate lightmap UVs" the artifacs are a bit smoother

[deft fiber]

All lightmapped meshes require valid lightmap UVs but that itself doesn't cause artifacting
It simply can cause artifacts and other problems to be mirrored from other meshes

[thorny goblet]

You gotta love light baking: https://i.imgur.com/xNh5MpQ.png https://i.imgur.com/aDmG60X.png

How do i fix this? :https://i.imgur.com/LuU3QmT.png

[chilly kettle]

What do you mean?

[golden surge]

when i have multiple scenes loaded at the same time, its the active scene that has the lighting settings used right?

[deft fiber]

You should describe the issue unambiguously
Are you sure you've meant to have realtime GI and baked GI both enabled? They're rather different workflows

[thorny goblet]

In picture 1 the orangish color is from the directional light that is outside of the room, and it shouldnt be seen on the wall, and the common issue i run into, which is on picture 2, is all walls dont get baked, and some are just pitch black. Is there not a way to just bake the shadows as is, and my scene look the same as it did before baking?

@chilly kettle @deft fiber

[chilly kettle]

Did you set the Objects you want to bake to "static" ?
Did you generate Lightmap UVs for the Objects you want to bake?
Did you set the light to baked?

[thorny goblet]

Yes, all objects are set to static.

[slim vector]

Is there a way to visualize in the scene the area light size? I have no Idea on how tweak their Width and Height since there are no references

[deft fiber]

@thorny goblet so, are you trying to precompute realtime GI or bake lightmaps?

[thorny goblet]

I'm not sure, i'm new to this, i jsut want to bake the shadows, to help with performance.

What do you suggest?

[deft fiber]

Disable Realtime Global Illumination
Reset your lightmapping settings

Even if everything's correct, baked lightmapping and realtime lighting work in kind of different ways
It's not just intended to bake lighting to lightmaps, but also simulate indirect and bounce lighting

[thorny goblet]

Okay thanks

[whole bramble]

except the standard shader , which shader will support the reflection probe ? (for mobile)

[chilly kettle]

i guess every lit shader should

[sonic mason]

anyone know why im getting these issues ?

[chrome venture]

Something is very wrong with my Lighting and I can't figure out what the problem is.
My objects are completely flat and no matter what light sources are in my scene, there is no shading whatsoever.
Any Skybox material, even the default, makes the Skybox turn black.
I've messed around with Lighting Settings, Camera, Quality, Project Settings, URP Light Asset settings, Changing render pipeline, etc for over an hour. Absolutely zero change.

If anyone has an idea of what could be going on I would greatly appreciate it

2d lighting works fine though by the way.

Only thing I can think of is starting in a 2d project changes something fundamental somewhere deep inside lighting settings and needs to be changed for 3d scene but I can't find it after a lot of searching.

[deft fiber]

URP 2D renderer disables all non-2D shaders, including the sky and all types of lighting

No clue why

Swapping the URP asset to use the non-2D Renderer gives you all the lighting back, but disables most of 2D features

As does disabling URP to go back to Built-in Render Pipeline

This means that if you want to combine 2D and 3D, BiRP is your only viable choice

[chrome venture]

Thanks for the explanation, now I see what the problem is. I decided to make up a workaround where I just have two cameras and have one running the 2d renderer and the other running the Universal renderer and switching between them as needed, good enough to get the job done.

[long umbra]

How do I get a light in my unity 3D scene to also effect sprites?

[deft fiber]

The sprites need a lit material

[long umbra]

How do i do that?

[deft fiber]

Make a new material with a lit shader if URP, standard shader if BiRP and drag it to the material slot of the Sprite Renderer
You may need to enable two-sided rendering and alpha blended transparency or alpha clipping (or "fade" or "cutout" if on BiRP)

This is technically a hack so not all sprite renderer features might work properly

[long umbra]

Okay thank you

[dire eagle]

Very nooby with lights. I have this TV in a living room with a point light and a spotlight to simulate the TV shine.
What I wonder is why the rest of the room isn't illumunated just a bit. Shouldn't there be some kind of light bouncing? I am using URP - is this not a feature of it?

[deft fiber]

There is no realtime bounce lighting in basically any rendering engine out there

[dire eagle]

Ok well then I am just a naive noob 😄

[deft fiber]

An exception to this is Enlighten precomputed realtime GI, baked lightmapping and in HDRP ray tracing / path tracing

[gritty kiln]

I have 96 point lights in my scene, all "baked" and "Important" render priority, but they flicker when the camera moves, except when bloom intensity is disabled. However, this also seems to break the point lights, as they only work when you get extremely close to them and seem very buggy. How do I fix this?

[deft fiber]

Light limit, baked lights and bloom are all separate systems with no overlap

Baked type lights are rendered as realtime if you have not yet baked lightmaps

Bloom settings should have no impact whatsoever on the typical light limit flickering

[gritty kiln]

I have baked lightmaps

I think it's just I have too many, but I can't get rid of any

[deft fiber]

Baked lightmaps are not subject to light limit flickering
You'd have to first identify which one of the three systems is the culprit

If you can catch a video of it I can try to look

[gritty kiln]

Ok I'll send one over

https://imgur.com/a/qmqPUli

[deft fiber]

These lights have not been baked and thus are showing the realtime light limit per mesh
The bloom is flickering also, which usually happens if the emissive surface is too small in screen space
It also looks like you could be using lens flares or halos, which also are flickering, which would be worse with bloom

[tepid wigeon]

Okay so I'm testing baking but keep getting this weird light result where the light looks like a water coloured painting on the objects

[gritty kiln]

Although about half of the lights stop flickering after baking, the whole scene becomes much brighter when I bake them, and I can't change it

[chilly kettle]

Can you shoow bake settings? What is your Lightsource?

[tepid wigeon]

I tried using emissive materials then area lights but still get the same results. All set to static objects

[deft fiber]

You have multiple flickering issues
Tackle one of them at a time

Decide whether you want to work around realtime light limits or to fully use baked lightmapping
Baked lightmapping is a complex process that requires you to take time to learn it

[gritty kiln]

How would I work around the light limits?

[tepid wigeon]

I have posted it. Is there anything I can do?

[deft fiber]

Increase light limit in quality settings, limit light ranges and slice the mesh into segments
In forward rendering path each mesh within a light's range must be rendered again for that light, this is why URP caps the light limit to 8 and though BiRP doesn't have this cap it's not recommended to raise it above that for performance reasons
Alternatively there's the deferred rendering path, and forward+ rendering path if using URP
Deferred rendering path has some limitations like no hardware antialiasing and no deferred rendering for transparent materials, whereas forward+ rendering path has no limitations but may be buggy as it is new

[lost sorrel]

Hey I am having issues trying to get my toon shading lighting to apply to my terrain grass anyone got any tips or recommendations, do I perhaps have to code toon shading into my already exiting material for grass? I have already got a toon shader that work for objects as you can see on the box, or should this be done through a volume instead? (Not sure if this should be ⁠lighting or ⁠shaders) https://youtu.be/2SaLs6dE12w

[dire eagle]

I have an issue with lights here. Please see the small clip I made. As I walk into a room the light reflection on the ceiling game object is only appearing when I come closer to it. This is happening with different lights in my scene.
I added a screenshot of the light component configuration. Also a screenshot of the ceiling game object (green material) and screenshots of the global light configurations.

Lightning is very new to me so I just can't really figure out what the source of the problem is.

[deft fiber]

These are realtime light limits, I was just listing solutions to that two posts upward

[stuck flicker]

Hi. I'm having some problems with the Probe Volume. My terrain doesn't affect the lighting

[dire eagle]

oh what a coincidence. But where are those settings? On the light source itself I couldn't find them and in the Lighting window I couldn't really find the light limit etc

[deft fiber]

In the URP asset and URP renderer asset

Project Settings > Quality has each quality tier referencing one such asset

[dire eagle]

Hm ok it seems I have to increase per object limit. It's set to 8 which is already max. How can I increase this even further? Because my bathroom has more than just 8 objects... also is increasing a best practise here? Feels like I am going towards a performance problem

[deft fiber]

You can't, and it's lights per object, not objects per light
Since you're using ProBuilder I think you don't have much control over how meshes are combined
My previous post also went over the alternative ways to skip the limit if you can't work around it

[dire eagle]

Oh wait that's a good point. I can merge meshes into one object. That kinda would make the whole room one object and should solve the problem ? I will try

[deft fiber]

That would make it worse

[dire eagle]

😮

So lights per object means - how many lights can manipulate fragments/pixels of the mesh. I have 8 limit. The flicker tells me that I kinda get out of range of the maximum light and enable the bathroom light to be enabled?

Light Range isnt' a factor for this limit is it?

Is my camera?

So if I see <= 8 lights in my camera everything should be fine?

Ok but I think you pointed me to a solution. I need to stream different level sections to avoid having to much lights active. Thanks!

[deft fiber]

That's exactly not what I stated in the earlier post though

[dire eagle]

Sorry I am trial-error'ing while trying to figure things out and read your comments. Mixing things up here

[deft fiber]

limit light ranges and slice the mesh into segments
In forward rendering path each mesh within a light's range must be rendered again for that light, this is why URP caps the light limit to 8
If a single mesh is within the range of more lights than limit allows, the lights will get culled
Forward rendering path is not concerned with pixels or fragments

So logically smaller light ranges and less big meshes make it easier to not surpass the limit

Deferred rendering does lights per screen pixel, but it has no limit for non-shadow casting lights anyway
Forward+ rendering is basically forward with automatic slicing so you get a bigger limit with supposedly no drawbacks

[burnt pendant]

Hello everyone, I am trying to create a room with a similar lighting scheme to this.

How do you think this was done? it seems like it was light using an emission only and doesnt actualy use any lights, what do you think?

[rocky peak]

A combo of good mats + baked lighting with area lights specifically, and then yeah some emissives.

[burnt pendant]

area lights okay thank you

[deft fiber]

The standing lamp could likely be a point light using a cookie
If the glowing materials are emitting any light, it's extremely faint
They are showing post processing bloom and can be seen in cubemap reflections, so it's possible they're not even contributing to diffuse lighting
Emissive material lighting is very inefficient to bake, so usually you might just as well use point or area lights as stand-ins for them

[burnt pendant]

Okay so put in a point light inside an emissive object like a lamp

[night shell]

Watch out for this because putting lights inside of objects that are getting baked will occlude them

[burnt pendant]

oooh sht yeah that was a blonde moment of me

[deft fiber]

Yea in that case the lamp parts would not be GI static
Or you'd increase the light shadow near plane sufficiently
Though I don't recall if baked lights have that option

[burnt pendant]

i was thinking of putting a low intensity light in the middle of the room and make the range cover the entire room. Could be a god idea?

[night shell]

They don’t

Those options are only for real-time shadowing

[dire eagle]

Ah that makes sense now. My ceiling mesh is over all rooms and there the range of each room's light range is touching that object therefore coming over the limit of 8. Now I understand this.

[brittle geyser]

why does this happen? This is a point light shadow. The light is in front of the mesh but the shadow has holes carved in it.

[arctic isle]

yep, realtime shadows and path-traced (baked) shadows are fundamentally different so this option wouldn't really make sense

[red bison]

how do you turn off the transparency? my friend has a problem and i dont use unity

[deft fiber]

Transparency usually refers to material properties
But that looks like just the editor grid, which will show through opaque objects

[restive abyss]

I have a problem. I load Addressables that contain static lightmapped objects. BUT after I loaded the assetbundle, I want to move these objects to a different place in the scene. The problem is that under StandaloneWindows64, the mesh doesn't move, even though I changed the position of the transform.

[restive abyss]

Seems I found it. I need to disable "Static Batching" in the project that generates the lightmapped objects.

[timber lichen]

Hey guys

Im looking for support on the area of lighting and light settings

I'm using the Unity Asset "Bakery GPU lightmapper"

I am currently experiencing issues with my lighting across multiple projects

My baked lighting has this banding/wavy effect as you can see in the pictures

My real time lighting appears to have the same issue

Important information:

The photos are from my main project where I'm using Bakery. The builds are both Windows & Android

I have done testing without Bakery in a separate project and got the same results

The banding is present at all light levels

Iv been dealing with the issue for about a month and iv tried various "fixes" such as compressing my lightmaps to formats like ASTC for android

The banding is present even before compression

I'm hoping someone can shed some light on what's going wrong because I didn't have issues like this before a few months ago

The environment I'm trying to light up is a low poly sci fi city. The environment is dark

[deft fiber]

16 million colors we're limited to can't do much better than that

With realtime or mixed lights if you have "dithering" option on the camera that can be used to smudge up the bands for a much smoother image

But with baked lightmaps the bands exist on the texture and there isn't really a way to smudge them the same way

[timber lichen]

So this is caused by my color choice? If I'm understanding correctly

[timber lichen]

Hmm I'll give that a try

[timber lichen]

That's a pain

[deft fiber]

Some colors make it less obvious but every color suffers from it
The reason you don't see this problem in other games is that they tend to have surface textures that conceal the issue, and you don't need a lot of texture for that

But also you don't really pay attention to this stuff when just playing games

[timber lichen]

That's starting to make sense now that I think about it, my older world was a night club with detailed textures. There were hardly any flat or solid colors

This pack I'm using is low poly so majority of the objects are flat/solid colors making it more noticeable

I think my best option is leanring towards a shader that will cover it up more and see if I can do dithering

Since I'm doing an android build too I can't use post processing (this is a limitation caused by VRC SDK)

[mystic delta]

hi everyone, maybe it's some kinda easy and googable question but i can't resolve this problem with baked lightmaps

i've attached some screenshots how does the scene look with baked lightmaps, also there is my lighting settings. almost all my lights are set to Baked mode, cast/receiving shadows is enabled on all mesh renderers, i'm using built-in render pipeline

if someone can help me to sort this out i'll be really glad because i don't understand how it works sometimes

[deft fiber]

Any warnings about lightmap UV overlap?

[mystic delta]

in console? no, don't have such warnings

[deft fiber]

Hmm next step is to check the GI debug viewmodes of the scene window
https://docs.unity3d.com/Manual/GIVis.html
UV overlap and texel validity are the usual suspects
Note that this requires a bake having been made for that scene during the current editor session

Light overlap is another I'd pay special attention to

The cut-off shadows could imply that
They also resemble the kind of light distortion you get when using normal map textures that haven't been marked as of type: normal map

[mystic delta]

thx man!

[short lichen]

I have found that the easiest way for me to properly light an environment is to fill it with orbs with emissive materials. This makes nice smooth lighting.
Is this dumb? Is there a better way? I tried area lights but getting uniform light with them is frustrating

[deft fiber]

It's certainly smooth but not very believable or realistic
You're meant to use lights that match the lights that physically exist in the scene
It might be better to show what the "not uniform" results were like that you were getting previously

[night shell]

this is the most intresting way to light a room I've ever seen someone do

and also wildly unnecessary lmao

[arctic isle]

That's neat! By all means go with the method that fits your art direction. Usually we design light types to fit into physical objects in the scene, but you don't have to go for naturalistic design if you don't want to. Very creative, thanks for sharing!

[arctic isle]

an alternative may be to use point lights and increase the Baked Shadow Radius

[deft fiber]

Does the mesh have lightmap UV generation enabled?

I'd also check texel invalidity debug view

[mild hemlock]

Does someone know if Realtime Lighting baking uses the GPU or the CPU? And if it uses RAM or VRAM in case it's the GPU?

[deft fiber]

Impossible to answer without knowing what the "grass" is, what shader it's using and what shader you're using for toon shading

[deft fiber]

I'm pretty sure precomputing realtime GI uses CPU

[mild hemlock]

Thanks for answering!

[whole snow]

Any good tutorials on lightning for HDRP? I thought it was supposed to be modeled after real life, but I've got to use insane values to get any sort of actual visibility

[deft fiber]

https://youtu.be/DlxuvvYZO4Q This one in particular probably
https://www.youtube.com/@unity/search?query=HDRP The channel has more, and the Unity Learn site might possibly have more actual tutorials still
The lighting is modeled after real life, but if you end up requiring huge light intensities that suggests you may not have camera exposure working properly

[whole snow]

ty!

[deft fiber]

If you don't know the system inside out I think it's very important to always use the HDRP project and scene templates that set you up with all the necessary components and values, and give you a point of reference

HDRP will simply not work correctly if the Volume component doesn't have the necessary overrides

I guess it's also possible that you're looking at the light units wrong, since there are so many different ones

[whole snow]

that's a good point, ty for the exposure direction.. I was just looking into that

it's very cool, very much like a real camera

which I have a good amount of experience, but also think I broke it when I incorrectly configured Opsive UCC camera.. good times 😄

[lost sorrel]

Anyone have any tips on improving performance of casted shadows getting some major fps drops at night but cant figure out a way to optimize it, perhaps a making script that turns of shadow casting when not visible to camera might work but unsure if this is the best way to do it , currently my main issue is the shadows casted to my grass terrain material https://www.youtube.com/watch?v=FU13L494-ds&t=4s

[timber lichen]

my shadows are flickering, how to fix?

[timber lichen]

im using realtime lighting

also it doesnt flicker in editor

only in build

[dire eagle]

I have a question about the spread of light.
In this scene I have a small bedlight. The bed light should be sufficient to see the room properly for the player.
However I have only two options to make this happen. I can either increase the Range very high which let's low intensity light fill the whole room however because of the range I touch other objects as well and therefore add up to their lights per object limit.
The other option is lower range but higher intensity. However this results in a way too bright light source.

Any ideas what I can do here?

[deft fiber]

Do the lights need to be realtime? If not, you'll likely get best results with the baked lightmapping workflow

[timber lichen]

i found fix, but i dont like it. disable shadow casting for every transparent object

[deft fiber]

Do they need to be transparent? Looks like they could be opaque with alpha clip just as well

[timber lichen]

i mean

they are with alpha clipping

lol

[dire eagle]

Do baked lightmaps work with Postprocessing like Eye Adaption and Bloom and so on?
Also I wanna be able to turn lights on and off - does that already count as dynamic?
But what I really wonder is if the range/intensity configuration is really so limited - isn't there an Unity asset that allows more configurations?

[deft fiber]

1. yes 2. yes 3. yes 4. maybe

[arctic isle]

Do baked lightmaps work with Postprocessing like Eye Adaption and Bloom and so on?
yes, those are screen-space effects that are applied after lightmaps are rendered onto the geometry
does that already count as dynamic?
yes, if you want to do that you'd need to use Enlighten Realtime GI (if the geometry doesn't move)
isn't there an Unity asset that allows more configurations?
maybe? Unity's normal light attenuation is made to conform more or less to the natural way light intensity falls off over a physical distance

[dire eagle]

Hm ok. It just feels like the falloff is way quicker for light distance than I'd expect it in "reality". That's why I thought I might use the configuration of a light somewhat wrong

[arctic isle]

that's because with the realtime lights you only have direct lighting and no scattering of any sort which would fill the room

[dire eagle]

Does the range of a light affect objects (in terms of lights per object limit) even when the light won't reach that distant object?

[arctic isle]

you get that with lightmaps (realtime and baked)

[dire eagle]

Ah ok so lightmaps are bringing in those light bouncing effects

[arctic isle]

you get the first 4 most dominant lights per object rendered. that said, you will unnecessarily slow down you game if you have huge areas for each light. light range was made to limit the range of lights for performance reasons. normally they would be "infinite"

[dire eagle]

hm ok I think I really need to watch some videos about unity lighting. I am unfortunately not as bright as the lights in my scene

[arctic isle]

godspeed! write back here if you need help 🙂

and also the pinned messages have some useful resources

[short lichen]

does anyone know why these defects happen and how to fix them? Using Unity 2021 built-in baked lighting engine, Progressive GPU

[deft fiber]

These are invalid texel artifacts
https://forum.unity.com/threads/faq-blocky-artifacts-appear-when-i-bake-a-scene-how-can-i-fix-them.951444/

[short lichen]

Thanks! Setting the material to be two-sided fixed it

[timber lichen]

no background tasks, but there are still 'Cancel' button + Unity still eats CPU and RAM

is it okay?

[arctic isle]

Are you using APV?

[timber lichen]

what is it?

[arctic isle]

Probe volumes. I assume not. Hmmm... Maybe progress reporting is broken for some reason? Doesn't mean a bake isn't happening.

[timber lichen]

maybe

but it is still using my ram more and more

and cpu too

[arctic isle]

can you post an editor log?

!logs

[tawdry schooner]

📝 Logs

Documentation
Windows: %LOCALAPPDATA%\Unity\Editor\Editor.log
MacOS: ~/Library/Logs/Unity/Editor.log
Linux: ~/.config/unity3d/Editor.log

Unity Hub
Windows: %UserProfile%\AppData\Roaming\UnityHub\logs
Mac: ~/Library/Application support/UnityHub/logs
Linux: ~/.config/UnityHub/logs

[timber lichen]

yeah

a bit later, i will give it some time before giving log

maybe it will finish

[arctic isle]

[timber lichen]

so, it didnt finish

do i need to close editor before sending log?

or just send it while it running

it is doing something

because temp folder in root of project is bigger and bigger

wai

t

it is importing assets now

literally right now started doing it

IT IS DOING SOMETAHING

YEAAAAAAAAH

IT FINISHED

YAAAY

but the hell is it lol

[arctic isle]

there's probably a lot of problems with your setup

[timber lichen]

i downloaded unity 2023.2 beta for it

lol

[timber lichen]

okay

what should i do?

[arctic isle]

the geometry doesn't look like it has proper UVs

and you probably don't need the realtime gi

unless you'll have tons of moving realtime lights that need bounce

[timber lichen]

nah

i have one directional light

and it is not moving

[arctic isle]

so turn it off and the bake will go much much faster

[timber lichen]

realtime gi?

[arctic isle]

yeah

[timber lichen]

okay

and rebake?

[vestal canopy]

Is this map ported from a source engine game?

[timber lichen]

yep

csgo

from 2016

[vestal canopy]

Overlapping UVs* maybe? Csgo/cs2 maps are made in the hammer editor and it does some weird shit when doing the uvs for geometries made in the map(not models. Things like walls and ceilings made in hammer) and i personaly have had problwms baking lights in maps ported from the source engine

[timber lichen]

imported to blender and then exported to fbx

[timber lichen]

maybe

[arctic isle]

you would need to fix the UVs as well yeah :/

[timber lichen]

how?💀

[vestal canopy]

I tried porting* the borealis level from half life 2 beta and among other problems i had problems with baking lighting and got alot of artifacts

[arctic isle]

there's a little bug icon at the top of the scene view with a bunch of options, you can see how the UV charts are generated

[timber lichen]

did ya fixed them?

[vestal canopy]

Nah gave up lol

[timber lichen]

lol

[arctic isle]

each of the colored checkerboxes is a "texel" here

only some of the surfaces will receive proper lighting

[timber lichen]

okaaay

how to fix uvs?

[arctic isle]

see how this is distorted in the same way as you can see the checkerboxes on it-- you want the boxes to align, be the same size and parallel

well you have to UV unwrap the objects correctly in blender

[timber lichen]

okay

hell nah

it is impossible lol

[arctic isle]

Yeah...

[timber lichen]

ill better use realtime lighting

[timber lichen]

do you know how to fix this flickering for objects with alpha clipping?

[arctic isle]

You can probably get away with it

[timber lichen]

this is the only one thing that made me bake lighting

[arctic isle]

Hmm

Is this urp?

[arctic isle]

https://forum.unity.com/threads/urp-shadow-flicker-after-upgrading-to-2022-3-1f1-lts.1448665/

If not I'm not sure how you can work around it

[timber lichen]

guy said that it was fixed in 2023.1

so, time to upgrade lol

[arctic isle]

Last comment says it's good on latest 2022.3

[timber lichen]

im using 2022.3.10f

this is the latest 2022.3 version

oh, latest version is 2022.3.11f

anyway, it was latest some days ago

[arctic isle]

It say 9 was fine for them so maybe you're seeing a different issue. Don't really know how to help with this

[timber lichen]

ill try to upgrade unity version to 2023.1

also i will try to upgrade unity 2022.3 from 10f to 11f

maybe that will fix the issue

[timber lichen]

first

and then to 2023.1

[arctic isle]

I hope you find a good workaround if this isn't solved. Just turning off shadows is an idea though it might not look as good

[timber lichen]

oh shit

so, upgrading project is pointless

cuz it wont be fixed lol

[timber lichen]

tep, ive thiught about that like a fix

but thats literally not what i want

[arctic isle]

That bug was for hdrp and it seems like it doesnt repro but closed as "wontfix"

I looked it up internally

[timber lichen]

so i have a chance to get it fixed in newer unity versions?

[timber lichen]

newer than my current i mean lol

[arctic isle]

Yeah I hope so

You can also submit a !bug

[tawdry schooner]

Reporting bugs

🪲 To make bug reporting as quickly as possible, we made a bug reporting application for you. When running Unity choose Help->Report a Bug in the menu, or you can access it directly through the executable in the directory where Unity is installed. It will also launch automatically if you experience a crash.

📝 If your bug report is to do with Documentation, either an error, typo, or omission, you can report it by scrolling to the bottom of the page where you found the issue and click ‘Report a problem on this page’!

💡If your report is to do with a new feature idea, you can check the Unity Product Roadmaps page to see if your idea has already been planned.

For more complete instructions on how to report bugs, access: https://unity3d.com/unity/qa/bug-reporting

[timber lichen]

it is already submitted

[timber lichen]

.

[arctic isle]

This one was about hdrp, which render pipeline are you using?

[timber lichen]

urp

[arctic isle]

Then it's a different issue sadly

[timber lichen]

okay

i will try to upgrade project

if it wont work

i will report a bug

[arctic isle]

Great!

[timber lichen]

loook

if the Light Atlas Resolution is too low, it can break clipping

maybe this is my problem?

ill try tomorrow(because it is night for me now lol)

but i will google possible solutions

[arctic isle]

Maybe! Try it out, I haven't run into this problem before

[timber lichen]

also possible fix

and again, possible fix

[arctic isle]

This one is for baked lighting specifically

But maybe? Doesnt hurt to try

[timber lichen]

wait, IT WAS FIXED LOL

in 2023.1.14f

[arctic isle]

I wonder if it's the same issue. Hopefully it works in 23 then!

[timber lichen]

yep

wait

i dont need to upgrade my project because im already using unity 2023.2 now

so i just need to clear lighting data

and build it

[twin kernel]

Is it possible to cast shadows onto a tilemap? I have an art style similar to paper Mario and im able to cast shadows on Terrain, but I want to use tilemaps for the flooring instead, which isn't displaying shadows.

[deft fiber]

You can if it's using a shader that supports 3D lighting

[twin kernel]

So I'd need to apply a material to the tilemap?

I'll have to sus that out when I get home

[timber lichen]

it doesnt flicker in unity 2023!

[arctic isle]

amazing! happy it worked out for you

[feral knoll]

Is there way to block the light going to another "side"?

[lofty rune]

I was messing with the visual environment and somehow cause a bunch of ghosting:

Anyone know what might've caused this?

[mental mulch]

hey im trying to use someprefabs but they are showing up lek this

nvm i fiex it

but that error is sitll showing up

[fierce prism]

Is there an issue with baking lighting/bakery and probuilder? Having these complications when I am trying to bake my lights with bakery. Lighting is from a material with emissions (the neon light tubes). All objects are probuilder, with the walls have smoothing on, if any of that matters

[plush notch]

Does anyone know if there's a way in unity to have a model use a baked reflection from a different scene? I'm trying to get an N64 style effect of oldschool reflection mapping where a texture is rendered as a reflection. I've tried to bake a reflection probe with one skybox, but when I change the skybox later, all the reflection probes go black until I rebake them with the new skybox. Maybe there's a better way to achieve oldschool reflection textures?

[deft fiber]

You'll want to use a custom shader that samples a cubemap and outputs it as emission color or unlit color if you're not using unity's lit shaders
Or more precisely a matcap texture instead of a cubemap since matcaps are more like what the old games were using

[plush notch]

I'll try that, thanks!

[half summit]

hey.. I'm trying to setup lighting for my scene and I have strange results generating lightmaps.. I'm trying to make them for static ceiling, walls and floors, but it looks like everything is lit just randomly. All my lights are using mixed mode and have the same values, yet some parts are really bright and other strangely dark.. what am I doing wrong?

[deft fiber]

Could be missing lightmap UVs on the meshes so they don't bake right, could be exceeded realtime light limits
Most likely both

I would troubleshoot them separately as Mixed lights have a realtime and baked component, and the limitations of both

For UV overlap there's the scene window debug view to visualize them
https://docs.unity3d.com/Manual/GIVis.html

Exceeded light limit should appear by randomly turning the lights on and off when you move them or when you move the viewpoint around

[ripe current]

So ive been trying to bake a lightmap for the past week or so and it didnt work in unity 2021 so i upgraded my project to 2023.1.11f1 and tried baking it a few times on the lowest memory profile (my gpu only has 4gb of ram) until it worked and after trying it overnight there were no errors but the lighting ended up like this with all the weird branch pipe looking artifacts. Does anyone know the issue here?

I also had the ambient occlusion on the optix setting which only now i realised that it does not work on my hardware maybe that would have done something?

thanks for any help in advance

[arctic isle]

Can you open the texel validity view mode and the uv charts view mode? This is either invalid UVs or backfaces in the scene. I would recommend turning off the rest of the scene and focusing on the one house for debugging / rebaking.

[arctic isle]

"Using" optix here didn't do anything, it simply didn't use a denoiser. We clarified the UX for this in most recent unity.

[ripe current]

there doesnt seem to be any uv errors and i know its not incorrect backfaces because I made the models myself and went through and checked for that already. I have attached both views. I have attached the texel validility (it has some red spots not too sure what it means though) and the uv charts (which looks a bit weird).

[ripe current]

any ideas?
and thanks for the help

after reading up on the uv stuff now i see im gonna go and remap the house and see if it helps

holy crap the uvs are bad i must have forgotten about it

[arctic isle]

Yup the UVs do indeed look incorrect 😁

[ripe current]

let me show you what they look like in blender

its bad

cant believe i forgot them

[arctic isle]

Amazing

[ripe current]

thanks anyway

[ripe current]

update its looking beautiful now 👌

god damn uvs are annoying

[arctic isle]

NIce!!

[zinc flume]

Just tried 2023.2 beta, loving the interactive preview. Is this the same thing as realtime preview that's on the roadmap or that's a seperate thing? I couldn't find a way to apply the preview result into the non-debug view.

[arctic isle]

Very happy to hear that you like it! The short answer is no, it's not the same thing.

Longer answer: The realtime preview is under development and planned for a future release (post-2023LTS) and it will be in screenspace and instant with no baking. This interactive preview feature is a "stop-gap" solution for us getting rid of what was Auto Generate baking. This interactive preview is a heavily optimized version of the Lightmappers that you find in 2022 and before that outputs only lightmaps and only for the sake of debugging. These are stored in memory and never written out as we wanted to make this completely non-destructive.

What happens after you press the Generate Lighting button is a new (as of 2023.1) baking orchestrator kicks in, which is a fire-and-forget version of the old Lightmappers (which would continuously watch for changes in the scene causing myriad bugs). This is not a situation where we have two/three different systems that do the same thing-- one is explicitly preview and one is explicitly "for production", so what you would choose with higher sample counts and denoising, as the new architecture allows for much better stability, no CPU fallbacks etc.

[tepid kelp]

a little help XD

i tried to backed but when it finished my fps is now fixed from 5 fps before and now i have 90 fps but the lighting is broken

[arctic isle]

very hard to tell what's wrong here, my initial reaction is that you either have a lot of realtime lighting overpowering the scene or your lights are too high-intensity. very hard to tell from this screenshot though

[tepid kelp]

the scene was perfect but when i backed the lights for better performance this happend

thank god i did a backup of my scene here the original but its lagging

[arctic isle]

realtime and baked lighting requires different setup, they're not completely interchangeable visually

[tepid kelp]

all of my lighting were set on backed not realtime

idk why this happend and how to fix it

[ripe current]

Hello again
so everythings all good with the light baking now except that some of my trees shadows appear just offset. There are some with the right ones and some with the offset ones. I thought it may have been something to do with the lods on the trees but ive been messing around with settings for the past while and havent gotten anywhere. Also the texel validility screen shows red where the shadow starts and not where the tree actually is. Any clue on what is happening here?
Thanks 🙂

Fixed the problem
it was an issue with my array modifier for the houses in blender
seperating all the objects fixed it 👌

[ornate axle]

hi, im trying to get a couple urp realtime spot lights working in my game but when one is on the other turns off? and i cant figure out why its doing it. seems like its only allowing for one light to exist at a time near each other but that makes no sense.
anyone know how to fix this?

[stark temple]

Which rendering path are you using? Because Forward as a limit of 4 lights per object, Forward+ and Deferred are unlimited, though there are also per-camera restrictions

[ornate axle]

nvm. i found it. yeah i finally found the setting and turned it up

[errant plank]

Can anyone help? For some reason when I added URP to my game, it removed all my shadows, can anyone help

[deft fiber]

Shadow settings live inside the URP asset, and you should confirm your light sources have shadow casting enabled where needed

[errant plank]

I don’t see URP asset

[deft fiber]

You have to create one to be able to use URP

Detailed instructions pinned in #archived-urp

[errant plank]

Ok thanks

[errant plank]

Wait I have it now, how do I find that

[zealous orbit]

Hey guys!
Do you know where I can find assets for a skybox? I already checked out the asset store but couldn't find any that fit my purpose. I want something galaxy-/sci-fi-like. Kinda how it looks like in geometry dash but just in 3D:

[ornate axle]

Light flare (srp) is there a way to access the components variables in a script. Cant seem to access it,

[deft fiber]

What did you try? What error do you get if any?

[ornate axle]

Well I tried public LightFlare lightFlare; but I guess lightFlare and light flare srp are different so idk what to put. Couldn’t find anything in docs. Just trying to adjust the flare scale in code.

[ornate axle]

No errors just can’t get the component, seems like it isn’t able

[ionic wind]

Hi whenever I bake my lights it gets permenantly stuck

I haven't changed anything and I've tried leaving it on overnight

[arctic isle]

Can you post your editor !logs and take a screenshot of the Lighting window and Background Tasks panel while you are baking? Also 😄 which version are you on?

[tawdry schooner]

📝 Logs

Documentation

Editor logs

Windows: %LOCALAPPDATA%\Unity\Editor\Editor.log
MacOS: ~/Library/Logs/Unity/Editor.log
Linux: ~/.config/unity3d/Editor.log

Unity Hub

Windows: %UserProfile%\AppData\Roaming\UnityHub\logs
Mac: ~/Library/Application support/UnityHub/logs
Linux: ~/.config/UnityHub/logs

[deft fiber]

The URP lens flare is of type LensFlareComponentSRP and requires using UnityEngine.Rendering
https://docs.unity3d.com/Packages/com.unity.render-pipelines.core@14.0/api/UnityEngine.Rendering.LensFlareComponentSRP.html

[opaque ice]

its point light , but its shining too much at the middle ,
i want it to distribute low light equally throghout the room .
i had achieved it using point light and double the range of the room , but doing this affected lights of other room ,
how to do it pls tell me

Also , in android the lights look different ( more lighted) and in PC Editor it loooks differnet, how to fix that

[deft fiber]

If by different you mean more contrasted or harsher, that could be if your target android platform only supports gamma color space

[opaque ice]

contrast , phone has more contrast

[deft fiber]

If so there isn't strictly a "fix", but you can set your project to use gamma color space so you should be seeing the same visuals on both ends at least

Regarding the problem with light range, shadows and brightness, you would get much better results by baking lighting

It only works for static light sources, but should solve all those problems and could be cheaper to render too

[opaque ice]

i checked , its already set to gamma color space in player settings

[deft fiber]

In that case another thing that could alter the look of the game between platforms is if the desktop version has enabled HDR in quality settings and post processing, particularly tonemapping, which android platforms might not support either

[opaque ice]

baking lights , changes only the materials textures ?? .
Wouldnt baking give the same result without realtime rendering it the next time.
I actually dont know about lighting much , i should watch some lighting tutorials

[deft fiber]

Sorry, I don't fully understand
Baked lightmapping is a complex light simulation that's saved to another set of textures that are overlayed with your objects' own textures

[opaque ice]

i meant , what baking does is, it just replaces your current textures to a new texture (which has direct and indirect lightings calculated ) ?
in this case both baked and realtime would look same.
my point is Does baked and realtime lighting look different ? in a static scene?

[opaque ice]

oh i see , new terms, its better for me to just learn about lighting in unity .
thanks for the help tho

[deft fiber]

It doesn't replace texture but creates another set that's shown on top of the original textures
Baked lights do realtime/indirect lighting which realtime lights do not, making the lighting much softer
They also do shadows for no extra cost, which are very expensive to do on mobile for realtime lights

[iron vine]

Hello! I wanted to know why my lighting in my reflection probe preview is looking (like i want) and in the game itself it kinda sucks... Can anyone help me point this out please?

[arctic isle]

it looks like the lighting is missing in general, are you loading multiple scenes together?

[iron vine]

No not realy. Only 1 scene 🙂 thanks for the quick response btw 🙂

[arctic isle]

and the lighting is baked, right?

[iron vine]

yes i will sent you my settings

[arctic isle]

I think you have no lightmaps and just the reflection probe, which is why you're seeing this

Maybe if you rebake it will generate them?

The reflection probe looks like it was generated at a time when there were lightmaps

[iron vine]

it wont create lightmaps? 😒 i pressed generate lighting and nothing happens. It says baking but it remains the same.

[arctic isle]

it's also baking realtime GI, so that takes a while... do you need 'realtime global illumination' ?

realtime gi and static reflection probes are not exactly compatible

[iron vine]

now it seems to be doing something...

[arctic isle]

right, it should appear once the bake is done

[iron vine]

Very weird this...

I will delete the lightning data and try again

[arctic isle]

okay, can you go to the Baked Lightmaps tab

no wait 😄

[iron vine]

To late i'm re baking 🙂 sorry 🙂

will see the result in an instance. Hold on

Okay i did this and it stays the same:

I will go into baked lightmaps tab

all black?

[arctic isle]

maybe you didn't check the Generate Lightmap UVs checkbox in the mesh importers?

the lightmapper is either not seeing any lights or not seeing any geometry-- what you saw before in the ref probe was probably the realtime lightmaps