archived-lighting

[deft fiber]

Look into shadow distance, shadow cascades and directional light near plane

Looks rather weird but probably related to one or more of those three

[fickle token]

Nope that didnt do anything, Weird.

[fickle token]

Fixed it 👍

[fickle token]

What about this? why does the light like glitch in the distacnc

[chilly kettle]

has nothing to do with light.
Your models are just to detailled to be shown correctly in the distance.
That are pixels "fighting" to be shown and the GPU doestnt know which pixel to show, because several share the same space

[fickle token]

Gotcha

[chilly kettle]

You could try some AntiAliasing or LODs

[deft fiber]

What seemed to be the correct solution

[fickle token]

https://gyazo.com/1d388c3727a022b60c337669a8e82045
Editing this and also using the near plane you suggested too

[fickle token]

Yeah thats what im trying rn

[deft fiber]

So all three solutions I suppose

[fickle token]

Oh yes, I didnt even see you said Cascades lmao

[deft fiber]

Note that there's "post processing antialiasing" and "hardware antialiasing"
The first type is on the camera and tries to approximate what's between the pixels, but cannot precisely know
The second type is usually in the renderer or graphics settings and usually is expensive as it actually renders what's between the pixels and smudges them accordingly

[fickle token]

Thank you actual ive been messing with the one on the camera wondering why nothing is changing lmao

[magic osprey]

I've started playing with Adaptive Light Probes and so far I love it. But I'm running into a situation where I may have to just go back to normal light probes. Essentially one of the main mechanics in the game will be power distribution systems, E.G. - power station. Anyways I want power to go out. Well the adaptive probes don't appear to do anything if lights go out, everything just stays baked with Enlighten Realtime GI. I know adaptive probes dont work with Enlighten. Which is fiine and cool, but it is there a way to make it just adjust to the current lighting changes? I mean normal light probes can do it (because of enlighten).

I mean I guess what i'm trying to ask is. Since ALP are meant to replace Light Probes, there should be some form of alternative i'd think? Like can I do it in code? Every time i've tried to do it in Code. AdaptiveLightProbes is apparently an editor class, so I can't do a a build with that to do AdaptiveLightProbes.BuildAsync(); or even have a reference to it...

Feel i should state - i'm using emissive materials for lights. Dont need the shadows, etc from lights.

[calm wedge]

Hey folks, can someone help me identify what may be causing this weird lighting bug? I've captured a video for reference, whenever I look at a certain angle, the ground around the player (seemingly) illuminates, but after observing the scene on the editor window, the ground doesn't even seem to be illuminating?

[split crystal]

Hello everyone,

I've been having trouble with seams showing up in my baked lightmaps in a modular environment (URP). The seams do not seem to disappear. For those of you struggling with the same issue, here is an important step to take to remove most seams:

• In Lighting settings, turn off all forms of Filtering. Simply select "None". Filtering will denoise textures, which will make it impossible for modular pieces not to show their seams, as the textures won't stitch well together.

I'm now facing the following problem:
When I zoom out at an angle in a scene, the seams will still appear (see screenshot). The floor in this screenshot is built out of 5x5 planes snapped together with ProGrids. The texture on top is a world position texture, but just to illustrate the problem I'm also showing it with the default Unity texture.

Does anyone know how to solve this? And do you know of a way to remove the seams without loosing noise reduction/filtering? Textures have to be baked pretty high res when there is no form of filtering...

Thanks!

[deft fiber]

The best solution is to not use modular geometry
It'll never play nice with lightmaps
The seams are from mip maps which are required to make textures appear correctly over distances

Or I assume they are anyway, you can try to confirm it by disabling mip mappin in the lightmap texture itself

You'd need very large Padding to prevent the seams, which you already have in excess of when each modular tile needs to have its own padding space, which quickly eats up into the available lightmap pixels

[split crystal]

But isn't building modular environments the way to go in game development? How do other devs solve the seam problem, not use lightmaps at all?

[deft fiber]

Modular environments are one particular workflow
Mostly they are used when you need everything as dynamic as possible, like for runtime level generation
Lightmaps are on the opposite spectrum of that since they are generated offline and extremely static in many ways

A lot of games use neither in favor of something else

Modular geometry might also be used in the modeling process exclusively, and then merged into continuous geometry before exporting

Tools for specific jobs

[split crystal]

Hmm makes sense. Let's say I don't have the option to do it on a modeling level because I do generate levels at runtime, what are your thoughts on Mesh.CombineMeshes (https://docs.unity3d.com/ScriptReference/Mesh.CombineMeshes.html)

[deft fiber]

If you generate levels at runtime you can forget about baked lighting anyhow

[split crystal]

Ah I meant in editor mode I've created generative tools that use my built models to populate walls floors and ceilings. The pass after that I bake the lightmaps

This of course to save countless hours placing all prefabs manually

[deft fiber]

Combining meshes alone wouldn't be enough, overlapping or nearly overlapping vertices will have to be merged (or "welded") and then lightmap UVs have to be generated for the new merged mesh

The mesh importer has functionality for both those tasks, maybe you can call its methods

[split crystal]

That's what I was affraid off.. Thank you very much for your input. Not the answer I was hoping for but thats reality 🙂

[split crystal]

Ah it has welding functionality, hmm I'll dive deeper into that.

[dusky nacelle]

I need a recommendation, I've a large scene to bake, like a pubg map, using Progressive CPU lightmapper,
I have 8gb ram in my pc
Should I buy
16gb ram + M.2

or 16 + 16 gb ram

(my project is in hdd and unity is also installed over there)

will 24 gb ram be enough to bake it... or I need 40 gb?

and M.2 or SSD can Improve the bake times by 60% i've heard, thats why im concerned about it within my Budget

[deft fiber]

You probably want something with a GPU and then bake with GPU

[dusky nacelle]

well, a 4gb vram crosses my budget, that's why I wanted to keep using my cpu

[zinc flume]

Cpu light mapper shouldn't have hard limit. But it will be sllloooowwwwwww to bake. The time - money ratio you waste by using cpu lightmapper will massively out scale just buying dedicate gpu.

[magic pivot]

Hey, did you ever find why it was like this and maybe a fix ?

[spice tinsel]

Hi guys, I have this weird bug that makes my main menu light go off after my player dies and goes back to menu. In first picture you can see main menu as it was supposed to be, bright and you can see everything and second picture is my main menu after I go back to main menu after dying in my game scene. Pls help!

[lunar pollen]

u could try using something like mesh baker to stitch the meshes together (that gave mixed results)

the true "fix" we found was to do exactly that, use mesh baker to stitch the meshes together, and if there are still seams, then open it in blender and actually weld/merge verts together

we did hundreds of baked while tweaking all the settings - there unfortunately isnt a setting that just fixes those seams 😦

[deft fiber]

I already gave you instructions, something the issue with them?

[thorny goblet]

Why does directional light shadows, look far better than spotlight?

[deft fiber]

They are calculated using entirely different techniques
And in this case it appears the directional light shadow resolution is blazingly high, while the spot light resolution is relatively low
Additionally spot light shadows become significantly more distorted when the angle increases over 90°

[thorny goblet]

Just tried adjusting the spot light angle, and it seems to make it more sharp, but now this look unrealistic. https://i.imgur.com/L1T0BuH.png

[thorny goblet]

What should i do for hallway lights then?

[deft fiber]

One option is to use a point light with a cube cookie

[thorny goblet]

Dont point lights tank performance though?

[deft fiber]

Yes, but that'd be the price to pay for sharp shadows

Point lights that cast shadows are 6 different 90° spot lights pointing in different directions, that's why their shadows are better

Maybe your performance budget allows for it, who knows

[thorny goblet]

How does this look? Would that light fixture emit light to the walls so high?

https://i.imgur.com/yeuA8Bk.png

[deft fiber]

No, that's why I suggest using a cookie

[thorny goblet]

Where could i find this square cookie, or is it just a white square?

[deft fiber]

Not just white, the point would be to use it to mask the light from going the full 360° but instead get softer and then fade to black towards the top

[thorny goblet]

So how could i make this cookie?

[deft fiber]

Point light cookies are cubemaps
https://docs.unity3d.com/Manual/class-Cubemap.html

Making entire cubemaps requires a bit of special tooling

But luckily you can use the Mirrored Ball mapping of the texture importer to convert a 2D light cookie into a 3D cube one

This mapping projects the edges of the 2D texture to one pole of the ball, and the middle to another

So any radial gradient will work

[thorny goblet]

Still looks bad. https://i.imgur.com/Pn427HO.png

[deft fiber]

Well what did you do? I see no difference from the last image

[thorny goblet]

I tried this.

@deft fiber

IS this right? or no?

[deft fiber]

The preview of the inspector shows you the sphere that's generated, and how the light will be filtered
I expect this kind of texture makes only a tiny dark hole directly above the light, or on one of the axes

[thorny goblet]

Could you provide an example of how to do this, to acheive what i'm looking for?

[deft fiber]

these type of gradients might work

[tight moss]

What is the deal with mixed lighting and the light overlap stuff?

like in a situation where you have evenly spaced ceiling lights in a drop ceiling or something... do you just carefully make sure every other one is baked and not mixed or something? and how do you solve for the specular contribution from the non-mixed lights?

[deft fiber]

The deal is that we're limited by the color channels of the texture for storing the lights to mask geometry from

[deft fiber]

Baked lights can contribute approximate specular response via cubemaps
With box projection that can be near perfectly accurate in ideal circumstances
"Emissive proxies" are used to help this process, see Chapter 5:
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/

[tight moss]

I've tried that before, particularly messing with the "specular probes" package from zulubo: https://github.com/zulubo/SpecularProbes but never quite got where I wanted

[deft fiber]

Why not, I wonder
You can see from the various examples that they do work to a great effect

Given the limitations of cubemaps anyhow

[tight moss]

yeah i think i'm just picky. in all the examples they're in ridiculously shiny metal rooms; if you're making something like, a spooky house with plaster walls and wood floors the fresnel is too powerful. needs some specular occlusion or something

i'm spoiled by bakery's baked specularity options

[deft fiber]

Why not use Bakery this time?

[tight moss]

diff project and I want to use betterlit shaders for some blending stuff, and the bakery support in BLS is kinda broken

[deft fiber]

BLS?

[tight moss]

better lit shader

[deft fiber]

Regarding this you'd be using reflection probes anyway for accurately representing the materials, with emissive proxies or not

The support for specular occlusion is close to none at least with the official tools so you might want to consider baking a reflection probe that only has the emissive proxies, with the surroundings artificially blackened or darkened for the duration of the probe bake

Even with mixed or realtime lights you'd still generally want probe reflections anyhow

But you can absolutely fake them to be dimmer

I think some version of HDRP's adaptive probe volumes support specular occlusion but that might be a bit too specific case

[tight moss]

@deft fiber i take it back... these results are pretty good 👍

using specularprobes

[deft fiber]

looks great

Box projection might make it even better

[tight moss]

yeah thats box projection dere

[deft fiber]

It is? I'd expect the reflection of the left light to line up with it better
Note to shape the box to match the room

[tight moss]

hrm yeah... its pretty well wrapped to the room

[deft fiber]

Should be right

I usually test by using a flat, metallic, very smooth material on the floor/walls temporarily

And then move the camera around to verify that the parallax of the reflection lines up

And when swapping the material back watching it so that the reflections do not significantly change position with the material

Just in case there's something odd with the normal map

[tight moss]

yeah i see what you mean... if i clear baked data to see where the "real" specular reflections are from the four lights, they don't line up too great

if i reduce blend distance on the reflection probe to zero, it lines up better

[deft fiber]

Surprising that blend distance has that kind of effect

I'd keep baked data and probes, but also add a realtime light or two into the mix, with a distinctive color perhaps

Then do the material swap test

If blend distance affects it, that may point there to being another reflection probe that also influences your walls since it's blending with something

[tight moss]

its the only probe in my test scene though 🤔

[granite coyote]

Hello guys : I'm making a Sci-fi environment in URP, and want to see how the light will be.
The environment will be Static and i want to bake the light, but doing so i lose the Highlights that are adding a lot to the visuals
By just baking the light i get a bland lock it feels like it is just a texture without volume.
Am i missing something? i feel like im close to the solution but still far.

[split crystal]

So the first image is without bake and the second with?

[granite coyote]

yeah

it feels like if you don't have a Realtime light you don't get highlight
It kind of make sense, baked light is "Baked" the only purpose is to be used on the baking processes after that can be discarded.
You can get Highlight in a baked environment just by having a reflection probe, but the problem is that the reflection probe has the highlight in completely different part of the geometry and it locks Off

[deft fiber]

We were just discussing this above you
Box projection can help it a bit, but ultimately the reflections will not be exact if your room is not box shaped also
Other option is to use Mixed lights instead

[craggy cairn]

Heya

So we have baked lights, all set to static, as well as baked into lightprobes.

When placing dynamic objects in scene view they work great with the light probes

However, on runtime, they turn full black

Anyone who might have a clue what might be causing this?

[granite coyote]

Thanks i will lock into what you guys mentioned

[deft fiber]

Does this also happen in a fresh test scene with nothing but some baked lighting and the probes?

It could be important to determine if it's a scene-wide problem or a project-wide problem

[spice tinsel]

You didnt explain why it happened and I didnt even use baked light

[deft fiber]

Scenes use an ambient probe and a reflection probe for environmental lighting, even when not using any baked lighting workflow
That's why I pointed out to disable baked lighting before generating
Generating is necessary because the editor generates it for you for your current scene, every other scene and the build require pre-generated lighting
Brief answer because it's easily googleable and gets asked about twice a week, you could've asked for more details rather than reposting

[tight moss]

@deft fiber i'm still on built-in RP and i downloaded filament's standard replacement shader (https://booth.pm/ja/items/3250389)

its got this feature called "Exposure Occlusion" that basically solves for the glancing angle fresnel issues i hate about unity standard

see this incredibly sharp, distracting line of reflection that should technically be occluded by the shadows/AO

and with filamented:

[lofty stone]

I'm having trouble with lighting in this scene. My Directional Light is disabled and the only light enabled is the spot light attached to the light. I'm trying to get the scene darker and have the spot light cut through the darkness

[dull bobcat]

Hey I encounter some issues lately .I change my verion to unity 2022.3.21f1 (URP) and I got 2 issues :

-I am trying to create a light effect on a canvas such as a light that intensifies then decreases like a slow glowing blink and I struggle on unity 2022.

On Unity 2020 I didn't have any of these problems and I imagine that I'm missing something obvious but I really don't understand it.
The purpose of it it to have some blinking element(with color) on my title screen(basically ,just a canvas with a image component)

[timber lichen]

how do you stop lights going through walls

[timber lichen]

(@ me)

[idle egret]

can someone just explain to me basic lighting in unity? Seems overly complex. I'm just trying to make this thing visible in the dark and everything lighting escapes my mental grasp. I have a inspect gun camera where you can spin the gun around 360 but it looks unprofessional imo that the gun is completely darkened half the ways you spin it. Maybe you lighting experts disagree idk.

But anyway this is the best I've gotten with adding a directional light to the scene with these inspector values.

[upper fable]

Why does the lighting change when you rotate the gun? Is the light attatched to the gun or something? Stationary lights from the direction of the camera that lights up the face towards the camera sounds like the way to go no?

[somber dragon]

Hello, I'm having a scene with Light as Mixed mode, Static trees. When I bake the scene it bakes well the shadows into terrain but it is not possible to combine baked shadow for static objects and also shadows into dynamic objects ?

[tulip tendon]

1. If the directional light is mixed it should also cast realtime shadows so maybe you have a setting disabled on one of the mesh renderers?
2. that shadow looks awful you should increase the lightmap resolution
3. Activate windows
4. You can try using adaptive probe volumes, they sample baked light and put it on dynamic objects with per pixel quality

[burnt brook]

How would I make a fake flashlight? It should just act as an overlay to give the illusion of a real light.

Kinda like this, but good

[onyx glen]

I gave each of the yellow dots a pointLight but why are only some not visible properly

These are the settings

[burnt brook]

Set rendering mode to important for the lights

[burnt brook]

I figured something out, light projectors from the 2018 standard assets. However I'm using URP, so that's a massive problem. Does anyone know an alternative?

[fickle token]

Im running into performance issues due to having alot of point lights in my scene, Any ideas on how to improve this?

[prime ruin]

Hello, the good looking one is from 3dsMax my friend rendered , and the other(ugly) one is from Unity , so basically he provided m with maps like albedo and normal and roughness and AO , but the quality is very not realistic like what he got in 3DS Max.
What I need help with is some tips and tricks for me to do so I can obtain similar render quality.
PS : I am using UPR and tried to make some Post Poc effects but no use
PS2 : If you are an expert and looking for freelance DM me

[gilded fractal]

Hello 🙂
I begin my learning on Unity after years using Unreal.
I want to bake the on some 3D mesh with the existing UV. I prepare the UV (chan 0 and 1) with a plan in mind for some FX but Everytime I bake the light, unity use some strange UV that I don't want.
How can I bake lightmap with specific UV (like the chan 0 but the chan 1 has the same UV) ?

I try a lot of different things, invert UV channel in importer, put the same UV on several channel...

I didn't check the "generate lightmap UV in the importer but unity still uses some stranges UV whitch I don't where they come from 🙂

[chilly kettle]

Unity always uses UV1 for the lightmap, if it is existing.
If not it just uses UV0.

[gilded fractal]

I will over check that but I'm pretty sure my models are made with the same UV in chan 0 AND 1... I reimport the models a lot of times... maybe I should restart from 0.

[chilly kettle]

how did you make sure, that unity does not use UV1 for the lightmap?

[gilded fractal]

On the left,; the UV i put in the 2 channels, on the right, the lightmap.

[chilly kettle]

Alright

[chilly kettle]

Hi.
Its not possible without a bunch of work to get a similar result.
To get a nearly similar result you need a skybox or the whole scene you use in max in unity.
You also need screen space reflections to get realistic reflections like in max.

[gilded fractal]

This is directly the model from Unity. I have my 2 channels and they contain the very same UV. I am now absolutly certain that UV0 and UV1 have the UV I want to use. But unity still make what's it want with it ^^

I will make a new project from scratch with these models... It is possible that some information were kept from precedent imortation with wrong parameters.

[shell juniper]

Projectors are replaced in URP by URP decals (which are way better anyways)

[chilly kettle]

i tested it with a cube i made in blender.
In UV0 i kept the standard UV and in UV1 i deformed it.
It works for me.

[gilded fractal]

Thanks a lot.
I am restarting from scratch 🙂

[chilly kettle]

check it out if it works for you. so you know if your model is wrong or something in unity

[gilded fractal]

I put your model in my new scene, and the lightmap use the form of your UV but resize it. I should have 2 lightmap, one with Your model in it and a second with my models...
But unity make one lightmap with all the model in it :

I see that the UV used are the good one but I don't want unity to resize them. I want the lightmap exactly as it is a texture ^^

(I wish to use it as a texture later, in fact ^^)

[chilly kettle]

thats not really usefull.
Unity packs as much different meshes into one lightmap to waste no space.
By default unity uses one 1k Lightmap and packs everythind into it, depending on the Lightmap resolution you tell him to bake

[gilded fractal]

My goal is to export the lightmap and use it as a texture in a material. I need the UV to be the same.

The planet will turn around the sun 🙂

[chilly kettle]

hmm.. i think we had a guy a while ago with the same idea.
@deft fiber - do you know how he solved that maybe? Im not sure if its possible to tell unity to bake the UV to fill the lightmap perfectly.

[gilded fractal]

If it isn't possible, I will paint my fake lightmap myself ^^
It's not a complex case but it is a good occasion for me to learn unity 🙂

[chilly kettle]

sure, but normally unity is not the right tool for that ^^
Because it places your UV into the Lightmap based on the resolution.

[gilded fractal]

I see that ^^

[deft fiber]

I don't recall
There might be a hacky way to decrease "max lightmap size" and increase "size in lightmap" to force it make a lightmap per object
If that's the goal here

[chilly kettle]

yeah, you could try increase "size in lightmap" until it nearly fits into a lightmap perfectly.
But thats a bunch of try and error ^^

[deft fiber]

If no lightmap UV packing is necessary I might bake the lighting in blender or externally otherwise

But I don't quite see the point of baking lights for that kind of space scene

There's not going to be noticeable indirect bounce lighting

[gilded fractal]

I've been thinking that i can bake the light for each planet separatly, one by one and assemble the several lightmpa in photoshop... Not really a time saver but when i look at the test made by Kjarudi , if it bakes on only one model, unity don't rescale the UVs ^^

[deft fiber]

The appearance of reflective objects is determined by what there is to reflect, so a HDRi in this case that's missing
Also appears that the smoothness of the blue object might not be right
Post processing might not make a huge difference but you may at least want to use HDR tonemapping

[gilded fractal]

It's a very smal solar system, in a room with lights. I want to bake only the light from the sun on them because when the planets turns, if they have light from other source than the the sun, light become incoherent.

It's not the real solar system 🙂

[deft fiber]

Light layers?

[gilded fractal]

It is some sort of light channel ?

I will search, thank for the lead !

[deft fiber]

Lets you decide which lights affect which objects on a per layer basis

[gilded fractal]

Oh ! that's exactly what I want to do !!
Go google 🙂

Thank you !

[midnight tapir]

Hello, im having some issues, i have shadows casted from my flaslight source in the editor but not when i actually play in editor is there somthing im missing ?

[winged forge]

Don't know if you figured it out already, but in Forward lighting mode, only 8 lights sources can be on 1 mesh at the same time.
Not sure if that important will fix that.

[onyx glen]

Ohh then what can I do 😔

Maybe just make the materials illuminated

[winged forge]

I'm not a lighting guru by any means, so perhaps other people have other ideas.
But you could cut the floor in more mesh pieces, or you could put the rendering mode on Deferred. Deferred afaik can do 256 lights on each mesh, or unlimited. Not 100% sure.

If you cut the floor in more mesh pieces, only the lights that are close are lighting up that piece. So that's why it will fix that problem.

[onyx glen]

Ahhh okayy will try that then

[winged forge]

When using Deferred Lighting, there is no limit on the number of lights that can affect an object. All lights are evaluated per-pixel, which means that they all interact correctly with normal maps, etc. Additionally, all lights can have cookies and shadows.

[onyx glen]

Does changing Rendering mode affect visuals?

[winged forge]

Yeah it does sometimes afaik. Like I said, not a lighting guru xD

[onyx glen]

xD understandable

[winged forge]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@17.0/manual/urp-universal-renderer.html
Here's a comparison, not sure if you found that already.

Seems you are losing some functionality by going deferred, but not sure if you need that functionality.

[craggy cairn]

Sorry for the late response. Just recalled I have notifications for this server turned off, including mentions 😵‍💫 .

Our programmer lead managed to fix it yesterday with a single line of code haha

[burnt brook]

Hey, does anyone know an efficient way of rendering light, or something similar as light? Maybe a github repo or a known method I could look up. I tried using projectors, but they don't adjust when changing between darker and lighter area, as well as being pretty inefficient too. I need to render multiple flashlights on quest 2. I use URP.

[deft fiber]

If this method is required, that implies you are loading different groups of light probes from separate additive scenes

[deft fiber]

Lights already are about as optimized as they can be for what they do
If you start reimplementing lighting you are likely end up in the same situation

[muted pasture]

cookie?

[deft fiber]

@onyx glen more info about light limits here https://youtu.be/y_vw-jzuNs0
In addition to deferred rendering, you may have the option to use forward+ rendering which theoretically has no downsides, or plain old limiting light ranges and slicing meshes

[burnt brook]

If I add one light with no shadows on quest my gpu usage goes up by 40% and the game is unplayable. I need to render at least four lights

[muted pasture]

I'm not sure if you can use forward+ on quest

[burnt brook]

Exactly, pretty sure you can't

[deft fiber]

How big is the mesh that the light is hitting? In forward rendering the mesh will have to be rendered again for each light that hits it

Are decals much cheaper in your case?

[ornate inlet]

baked lighting and this happened, why ?

[burnt brook]

It's a very simple scene. Maybe 5-6 objects at max, but it will almost certainly be much higher later in development

[burnt brook]

I assume, but how would I implement them? They look really bad, nothing like real lights.

[ornate inlet]

is there a way to bake lighting on individual/a group of objects?

[burnt brook]

I used a stencil buffer lightning shader I found online to achive this. The light on the left is real and the one on the right is fake. Distance based intensity I could do using a script, but it's lacking a cookie or falloff, so it looks pretty bad.

[burnt brook]

See what I mean?

Is there a screen space solution that looks more like a light and less like a decal?

[deft fiber]

Compare their performance, rather than assume

Then you know if it's worth the effort to implement them

[deft fiber]

The number of objects is not important, but their polycount
Since forward lights are rendered in multiple passes per object, the cost can balloon with complex objects

[deft fiber]

No

[ornate inlet]

Fuck

[burnt brook]

I mean just look at the text, theres no way I'd be able to implement them the way they are right now.

[deft fiber]

Not a Number error from the shader or a corrupted bake, and or texel invalidity probably
Can only guess what the error is since we don't know what it's meant to look like

[burnt brook]

The objects have like 20-60 polys they're just cubes right now

[deft fiber]

Performance is the only bit that matters at this point
If they beat lights in performance you'll know if they're viable even to consider

[burnt brook]

I mean let's assume it does, because it almost certainly will, what could I even do to make it look like a real light. Here for example, I'm using the stencil buffer technique on the left, there must be way to copy what that stencil thing does and slap it on a decal or implement a cookie to give it that flashlight effect, right now it only has hard egdes, which looks pretty bad. Here's the shader I'm using (https://www.patreon.com/posts/wind-waker-style-78831006).

[deft fiber]

Stencils are true of false, they can't have semi-transparent masks
Stencils are not necessary for emulating a light cone though, it can all be done in the shader itself
Let's not work on any assumption
You can compare the performance even without solving these issues, which will tell you if it's even worth to try to solve the issues

[burnt brook]

Alright I'll do some testing, but what do you mean by "Stencils are not necessary for emulating a light cone though, it can all be done in the shader itself", what techniques are there to emulate a light cone?

[deft fiber]

Could take a distance to a point in the shader to get the light distance attenuation, multiply by surface normal to get directional attenuation, and multiply by dot product to effect's forward rotation with a threshold to specify an angle (or a gradient for a lense type effect)

But then you realise this is precisely what unity's lights do

[upper fable]

One solution that we discussed earlier was to create cone shaped mesh and apply decal type shader to it similarly how some deferred shading solutions use light meshes to apply the lights afterwards. That I believe would be more performant than doing the lighting calculation on the shaders of every affected object

In deferred shading that appears to be called "light volume" by some sources (the light mesh)

[deft fiber]

There's a lot of good potential options here

First step should be to test them just enough to know which one's worth doing

[upper fable]

sounds reasonable. none of the potential solutions sounds particularly easy to implement (besides real light sources which is ruled out afaik) so ruling some out would be good first step

[deft fiber]

An important benchmark
Implementing an optimization all the way because it "has to" be better is a poor gamble, in any case

[burnt brook]

@deft fiber @upper fable Check this out. One draw call (even when displayed on multiple objects), screen space decal, srp batcher compatible, less then 0.1ms rendering time on my pc.

and supports cookies

[upper fable]

I don't really care about the draw calls and the render time on your PC isn't all that relevant either. You should preferably test it on the target device to see whether it performs well enough (you said you are going to have atleast 4 of them so you could make like lets say 10 decals and see whether the performance is at acceptable range, if not, you likely need something else)

[burnt brook]

I can't test it on quest right now, but so far im seeing pretty good results.

[upper fable]

compared to using light sources right?

[upper fable]

One very obvious problem with decals is that the light shape is cylindrical and not conical. If you move the decal closer or further away from the wall, the size won't change and neither would the intensity. That you'd have to fix with a decal shader

[burnt brook]

I'm gonna write some code to change the intensity and scale based on distance, that should do the trick

[upper fable]

If you are going to do simple raycast from the light and change based on that, I think there might be way too many edge cases where it doesn't look good that it becomes too much. Essentially the problem is that this way you only have one intensity and size value for each light likely resulting in flickering lights and unrealistic light sizes

[burnt brook]

Possibly, I'm gonna have to see and iterate from there

[misty bone]

Hey there, I need you guys' help again... I tried to bake the lights in Unity for a project, but when I press "generate lighting" , they just... disappear... (im in hdrp)

[deft fiber]

The scene window debug views can give you information about baked lightmaps:
https://docs.unity3d.com/Manual/GIVis.html
The most common problem is that your objects do not have proper lightmap UVs, which you will get a warning about in the console and which will appear in the debug view for UV overlap

[misty bone]

My console is empty

I'll check the link, thx

But where do I find the lightmaps do you know ?

[chilly kettle]

in the lighting tab or directly at your baked gameobjects

[misty bone]

mmh

DO I HAVE TO BAKE?

[chilly kettle]

sure 😄

[rancid axle]

Hi all. I'm looking for day/night
What's the difference between UniStorm and Magic Light Switcher + Bakery?
Afaik it seems UniStorm doesn't use lightmap? What's the implication then?

[winged forge]

Lightmaps are nearly free and real time lighting is not.
So they solve the same problem in a completely different way.

[rancid axle]

Would they be used together? Real time shadows on light mapped objects? Together with MLS's blended LM?

[winged forge]

Not sure how that would make sense, but sure you could do it.
All objects in the world still need to get real time lighting, why use a lightmap then?
It completely removes the whole point of saving performance and having nice baked lighting.

[deft fiber]

Lightmaps are nearly free but interpolating between different sets of them isn't necessarily
Depends what kind of optimizations those assets implement

[dusky nacelle]

aye from where you've got such scene , any link please? it looks amazing

[misty bone]

Hello Aurora, I have made it for a school project in Blender and textured it in Substance Painter ^^

So I have no links to give or anything ^^'

[dusky nacelle]

the art is amazing , great work

[misty bone]

Thank you so much, it means the world !

[dusky nacelle]

the skybox takes me to the royal medieval age

[rancid axle]

I did decide to use MLS+Bakery in the past. I need far distant shadows that doesn't need to be real time, but blended for day/night too. Realtime shadows then can focus on the closer objects (far dynamic objects gets culled anyways)

I haven't tried unistorm. Only tried the demo with far distant mountains and it seems to work
But i doubt shadows will look good when there are more nearby objects taking up the shadow cascades
Unless, well idk what unistorm does, really? How can it have far shadows like that?

[craggy cairn]

We are, yes, our whole project is based on loading scenes additively. I'm not a programmer though, just a puny artist, so no clue if that's good or not.
Seems to work fine for now (besides this small hiccup) 🤷‍♂️

[vestal blaze]

are probe volumes completely unusable in the unity 6 preview? for me they work fine in the editor, but the probe lighting is missing completely in the build as if you didn't even bake at all.

[midnight tapir]

Is there a documentaion on probs any one has a link for i can read?

nvm i found one!

[rancid axle]

Hi all
I'm on URP, 2021.3.35
I have this flickering shadow problem, even on a very basic scene
Anyone know why?
Cheers

[rancid axle]

Only with directional light
Point light is fine

[dusky nacelle]

is shadow projection set to "stable fit" in the quality setting?

[dusky nacelle]

probably you wanna tweak with the near and far camera clipping values

increase the near clipping a bit

is it true guys?

[deft fiber]

I would look into updating graphics drivers first, then trying with different render APIs

[deft fiber]

Can't speak for it since I don't have 32 GB of ram
But conventionally if all the memory required for the task fits in your ram, you won't benefit from having more on top of that

[rancid axle]

The setting is not there. Maybe that's only for BIRP

[rancid axle]

Updated. Still flickering

What do u mean by different render API? Like try BIRP and HDRP?

[deft fiber]

https://docs.unity3d.com/Manual/GraphicsAPIs.html
Just in case your machine is not playing well with the current one

I can think of no other graphical settings that may affect it

Especially if your project is a fresh one, there shouldn't be any lighting artefacts

[rancid axle]

Fresh URP project doesn't flicker
This new project with adding asset is the flickering one. Deleted all assets and still flickers

Sry my artist did all the asset adding
He said might be Unistorm related

[brave bloom]

Hi, I tried to import a unity scene I worked on inside an other project, when I launch the scene directly I get normal lighting, but when I switch to the scene from the main host project through SceneManager.LoadScene and SceneManager.SetActiveScene, I get a completely black scene

[strong igloo]

how would I make a light flicker effect, is it at all possible on a baked surface or would it have to be a dynamic light?

[dusky nacelle]

hey just slect your camera and find the "near clipping" , then increase it , if doesnt work, then decrease the far clipping

[dusky nacelle]

https://assetstore.unity.com/packages/vfx/shaders/gi-light-system-151941

this might be useful

[tulip tendon]

wait, how does light have anything to do with the tris, vert and batches? thats mesh stuff

[strong igloo]

Issue is that it’s an idea for a custom map for a game so I can’t confirm I can use certain packages (even bakery has a couple issues with some stuff)

[dusky nacelle]

you wanted light flickering on baked surface

and it does it , but in optmized way

[deft fiber]

Realtime lighting is the simplest, can also be done with enlighten realtime global illumination, which the linked asset also utilizes

Or you can swap between baked lightmaps, but that's not officially supported directly

[deft fiber]

In forward rendering path, meshes are rendered again in every lighting pass for each light that affects them
This means more mesh geometry that ends up being rendered in a way that can't be batched

[brave bloom]

anyone had similar problem before

[split crystal]

Can you check what happens to the skybox and the actual lights in the editor when you enter the scene through the loadscene function.

[rancid axle]

Ok my flickering is fixed. Screen space shadow....

But changing to Deferred fixes this for me
However, there's this thread that flickers in Deferred, so maybe not related
https://forum.unity.com/threads/urp-12-unity-2021-2-0b5-screenspace-shadows-flicker-in-deferred.1150265/

[lean shoal]

how do I stop the light from going through an object?

[deft fiber]

Shadows
They are enabled but we can see no shadows are being cast

So they could be disabled in the URP asset, or elsewhere

[lean shoal]

Thanks for the answer! I'll try checking the URP asset.

fixed it thanks!

[magic ether]

why am I getting this strange lighting bug?

tried different lighting settings but nothing seems to be fixing this

[deft fiber]

If you're trying to bake lightmaps, it's not gonna work on a mesh like that

Too many seams and edges

Adaptive Probe Volumes instead of lightmaps could work though

[dusky nacelle]

is APV supported in built in renderer pipeline?

[rancid axle]

Hi all, is unistorm a stable asset?

[slow night]

maicraft

[deft fiber]

No

Can you show how it looks like and share some details like what kind of objects they are and what kind of lights they are

[deft fiber]

Best to ask in their communication channels

[dusky nacelle]

i wonder why unity has kind of divorce with the built in renderer , all they contribute now is only for URP and HDRP

[deft fiber]

Because they deemed BiRP too difficult to maintain after about 15 years of adding to it

[keen valley]

does anyone know what the darker areas in the Indirekt view in the Debug Draw Mode mean? they seem connected to darker artifacts in the lighting.
I've been googling for 2 days straight, i need some help :<

[errant plank]

can anyone help me? For some reason, there is this one object that just is way brighter than the others after I bake my lighting. Any fix?

[brave bloom]

does it have same normals as the others

[errant plank]

yea

[deft fiber]

What type of lighting are you baking, realtime or baked, and what do the actual lighting artifacts look like

[deft fiber]

You should show debug views for lighting overlap and texel validity after baking
https://docs.unity3d.com/Manual/GIVis.html
And demonstrate the lighting issue itself also, of course

[severe condor]

Good afternoon, everyone. I've run into an issue and am hoping that this is both the correct place to put this and someone is able to help me figure this out. I've recently started working on loading scenes additively but have ran into an issue; the lighting makes the gameplay scene I'm loading additively look like it took a bath in raw sewage. I've read multiple forum posts about generating lighting or copying the light from one scene into both scenes but neither resolves my issue.
In the image below:

1. 'Gameplay' Scene is loaded.
2. 'GameManager' scene is loaded, with 'Gameplay' Scene loaded additively.

Both images in the screenshot above are with lighting generated. That said, only the 'Gameplay' scene has a directional light; the GameManager has none.
Also, if I switch the active scene via code, the lighting is fixed. Is there a way to have one scene be the active scene but use the lighting of another? I'm currently using Unity v 2022.2.7f1. Any help is appreciated.

[misty monolith]

Hello ppl, I'm doing a separate light source for the player and the minimap.
I've set the separate culling mask and assigned them to their corresponding light source and set the cameras with the layers they will each display but the camera still shows all the lights.
I've tested with objects, it seems that the cameras will correctly exclude the object on the layers which is not in the culling mask of the cameras but not the lights, they still displays no matter what

[crude wind]

I dont think that lights are affected by culling masks. Pretty sure you have to manually manage (disable/enable) the lights when rendering a different camera

What render pipeline are you on?

[misty monolith]

I didn't specifically set any, in my project settings there's none

I'm working on this kind of map, which the map will be relatively dark and I want the minimap to be much more visible

[deft fiber]

Might need a script like this
https://forum.unity.com/threads/mutltiple-cameras-with-different-lights.779375/

[crude wind]

Okay. You need to adjust the lighting before rendering the minimap camera and reset it after

[crude wind]

I think for builtin RP it would be OnPreRender+OnPostRender instead of begin/endCameraRendering events

Though the minimap camera could just be rendered manually with Camera.Render, change the lights before and after that

[deft fiber]

Oh yea this one is for hdrp apparently
But the idea is the same
Wonder why lights don't respect culling layers

[crude wind]

It always felt a bit odd to me, yeah

Light layers aren't helping here either

[misty monolith]

so that is render the minimap camera before the scene and stuffs all happens using the script provided

[crude wind]

I personally would just

1. Adjust lights to minimap mode
2. Camera.Render()
3. Reset lights to normal

When you do that is up to you. Start of scene could be a good choice, yeah.

And make sure to disable the minimap camera when not used so it doesn't eat your performance

[misty monolith]

hmm so adjusting to light to minimap mode then adjust it back and the minimap will keep the settings it was assigned. Then the game plays in real time when the minimap starts moving with the player it'll still applies?

[crude wind]

I mean presumably the minimap can be rendered just once, not every frame, right?

What I do is render it once when the scene starts and the I have some UI script that centers the image to the player in the minimap view every frame

Or maybe idk what you are asking

[misty monolith]

oh yeah that is a way to do, the approach I was going for is have a camera on top of the player facing down

[crude wind]

Yeah its way more efficient to just render it once and reuse the image

Just needs some extra scripting for the UI

[misty monolith]

but how to do the scale for the player moving and other things moving on the map was the problem I faced

[crude wind]

Maths

[misty monolith]

Yeah this is why I took this approach

Thanks for the help @crude wind

[sterile jetty]

okay
can someone briefly explain what all these blue boxes are?

this is a baked light map

wait I'm dumb

I just couldn't find my object on there because it's really fricking tiny for some reason

[dusky nacelle]

lightmapping used to take 2 mins, now suddensly its taking forever ad , cpu isnt being used at all , nothing is changed in the scene , previously I had the problem but solved it deleting the library folder and restarting unity , but this time , it isnt working at all , what should I do?

it is stuck at "preparing bake"

[winged forge]

Without seeing your settings I wouldn't know. So perhaps post those in a screenshot?

[deft fiber]

If GPU baking is an option you could try that instead

[dusky nacelle]

i dont have a good gpu, its gt 1030

well, after a lots of tweaking (installing bunches of new editors , reinstalling the windows etc) I have finally figured out that the problem was actually not with the editor , not even the library folder , the only problem is the position of the object , it was like 30000, 893, 45000 in the x,y,z , it's actually a position where the x86 floats are limited

taking them around the origin simply solves the problem

now I get even faster bakes than before somehow, probably because I've got my pc cleaned up and reset

[deft fiber]

Still probably faster than CPU baking, as long as the editor supports that card

[dusky nacelle]

if I reduce the direct and indirect sample 4 times less in the CPU baking I will get what exactly the GPU baking gives out , and in the same timing the GPU takes

[dusky nacelle]

My scene is too large , and VRAM is 2gb only

though the new editor supports 2 gb as a minimum requirements now, but Im afraid it throws "out of memory" stuffs during the bake

I have 40 gb ram, and 6 core cpu, I guess it will be stable for desired bake results

[deft fiber]

When the editors were made to support low vram gpu's that means they were made to support low vram gpus, with improved partitioning and caching of the task

I'd test it out rather than work on assumptions

You don't need to convert your project for it, just move that scene alone into a new project for a test bake

Light baking is an extremely well parallelizable task, which GPUs excel at with up to thousands of cores

[brittle flax]

Hi everyone, I'm pretty new to unity so sorry if it's a stupid question but does anyone know why this specific window model from blender is lighter of color then the cube wall from unity? they use the same material. it happens when I bake global illumination

[heavy merlin]

I've got a skybox for lighting and I've enabled realtime global illumination, I also tried baking light but it didn't work properly. I can't see any shadows in the scene other than on the two textured objects, please can someone help?

nvm found out you have to go in and manually tick "contribute to global illumination" PER object ????

[deft fiber]

You can select and edit multiple objects at once
And in most cases you don't want absolutely everything to contribute to GI

[languid blaze]

@young flume so, you need to either create lightmaps in Blender (stored in UV1), or ask Unity to generate them for you

turn on "Generate Lightmap UVs" on the model importer for the latter

[strong plank]

Has anyone encountered this bug in 2022, 2023 and 6000 in HDRP where alpha clipped materials do not cast cutout shadows properly?

it was fixed in 2023, was not backported to 2022.3 LTS and remains in 6000 but im not sure if anyone has figured out a temporary solution to get them working

And i worry that even though 6 is still early, Unity is still unaware that their fix doesnt work in 6000 or 2022 still

[shell juniper]

Make a bug report, it's weird that that it apparently got fixed in 2023 but isn't in 6

[golden mantle]

Question. I am using Bakery (latest update). I had my MonoSH lighting work in Unity 2019 since 3 years. I had to switch to Unity 2022 and it doesn't work anymore. I am using Filamented Shader (latest update) on all my static materials. How do I get my MonoSH lighting back to work? Not sure how to continue right now.

Specular map should look like this:

Baked it looks like this:

Material looks like this:

Light source looks like this:

Bakery settings look like this:

[strong plank]

In the bakery discord someone was having issues with that same shader, I was using BetterLitShader with regular SH and it broke after the recent bakery update. Luckily it was updated after Patching bakery it works 90% now.

All i know is recent versions of bakery have been breaking compatibility. Usually the one who makes the shader is the one that needs to update it to support bakery's new architechture.

Mr.F (the dev) added a way to occlude specularity so this means you might not have to bake Reflection probes (really cool feature)

IT seems to have broken shaders (BLS was doing the same exact thing in your screenshot).
You might try the regular Bakery Standard shader just for testing to see if this is the reason maybe? It should just work out of the box for that one and the URP one

[golden mantle]

Thank you so much for your help. I will try this. Also I saw that there is a Udon Adapter Component for making VRC be able to use SH lighting apparently. I never tried it since I always heard VRC only supports monoSH. Do you have any experience with that?

[strong plank]

I dont use MonoSH or make VRC maps but for static geom i've been using regular SH.

Okay so for HDRP regular SH works great but breaks on non static geom. The whole point of using Volumes is to prevent having to use Light Probes so i was stumped..

At the moment I use regular SH for static and actually Vertex SH for characters. Its a little bit scuffed sometimes with the light leaking but works good enough for me.

I'd maybe take a look in the Bakery discord cause it seems like half the people there are VRC devs and they know their stuff

[golden mantle]

Oh god, I lost overview in which channel i was asking about VRC related stuff and which one only Unity related stuff. Sorry.

I appreciate your help a lot. Thank you!

These are a lot of things I haven't even heard of yet. Pretty interesting

[zenith carbon]

I'm using Bakery an it keeps getting stuck at this 2021.3.16.f1

any ideas why

[sonic mason]

https://cdn.discordapp.com/attachments/534472776841691137/1251075683573039165/image.png?ex=666e9406&is=666d4286&hm=e62e037ab99dd64cfa474f6cd2b4480d5f617c15159a6f1b74a20735ca6ce3fa&

why does my trees have white edges ,
it doesnt do this when i remove the emission , but my emission atlas is all black so it shouldnt emit anything

[chilly kettle]

There is a bakery discord

[deft fiber]

Is it truly? These types of artifacts often appear when a color from outside of the UV area starts leaking in due to mip mapping or another texture sampling side effect

[sonic mason]

the thing is , the tree is the only thing it does it to , its a whole atlas that the whole world uses

[sonic mason]

let me double check

@deft fiber
so this is the uv with the albedo ,

and the emission

[deft fiber]

So there are non-black colors around it
Mip maps will effectively blur the texture so at certain distances the beige below your UV region could reach the tree

If disabling mip map generation on the texture temporarily seems to fix the issue, that suggests it's what's happening

[sonic mason]

just disabled it , nothing happened

or actually it helped a tiny bit

but only a tiny bit xD

so horrible XD !!

[deft fiber]

To the best of my knowledge this should solve it fully, or have no effect
I don't have a guess why it seems to work partially
Except unless your LOD models have different UVs
Or if it's actually an MSAA related problem

I would try to rule those out and then experiment with different UV layouts, or different emission maps in an effort to pinpoint where exactly the color bleed seems to happen

[sonic mason]

its weird cause it disapears once i go close , like shown here

[deft fiber]

Texture sampling gets less accurate over distances, usually due to mip maps
MSAA edge artifacts depend on how many visible edges pixels there are

[vagrant hearth]

I really need help. I'm working on my game for a game jam but I'm having this issue where when the scene gets reset, the lighting goes all dark. Can anybody help me fix this?

[deft fiber]

Generate lighting from the Lighting window for each scene with Realtime GI and Baked GI disabled

[vagrant hearth]

It worked. Thanks!

[sonic mason]

ye i re did the UV's and it works perfect now 😄

thanks for the help @deft fiber

[karmic elbow]

I need help with baking in my levels, whenever I bake the lightmaps are always black how do i fix this?

before and after baking

[chilly kettle]

no baked lightsources?
Shader not supporting baked light`?

[karmic elbow]

the lights are set to mix, we did switch from unity 2022 to 2023 and before the switch the shader was working fine

[dry abyss]

anyone ever have these artifacts in internal lighting using APV in HDRP?

Unity 6 latest build

[winged forge]

Until someone who knows better comes around, did you enable Generate Lightmap UV's on your model?
AFAIK it uses that to store the APV data too, and lightmaps without it also create such artefacts.

[dry abyss]

That didn't seem to fix it but doing some basic debugging it shows that probes inside my mesh are considered invalid, i shouldve checked this from the start XD

[dusky nacelle]

does using multiple light probe group has any disadvantage than using only one and generating multiple light probes out of it?

[chilly kettle]

Nope. No difference.

[shell juniper]

Looks like you might have a ton of exposed backfaces invalidating probes inside

if your meshes are modeled with double sided faces make sure your materials are double sided

[errant plank]

Can anyone help me? I’m trying to bake my lighting but the waiting time sometimes gets longer and longer or it just chooses not to even bake. And sometimes it does bake but the system can’t allocated memory. Can anyone please help me?

[dusky nacelle]

try reducing the lightmap resolution

[shell juniper]

I think you pinged the wrong person

[raven jewel]

Hello. I am having issues trying to bake lighting for this door. The door is simply a solid rectangle with windows cut out (using booloen modifier). The square in the windows have a long rectangle plane going through it for the glass. It appears that the baking does not light this plane going through the inside of the door. Does Unity not like objects inside an object? does it mess the lighting up?

[dusky nacelle]

sorry man, it was supposed to be the person next to you

[shell juniper]

no worries, I just mentioned it in case you wanted to ping them instead

[ocean bobcat]

Why does my skinned mesh have inverted lighting on it? Normals in blender are all blue and looks fine but when I import it into unity, the lighting is acting as if it is being hit from the other side of the mesh

[whole flare]

Hey, I am trying to bake lighting for my backrooms game, but almost no matter what I do I can't get these weird shadows & artifacts to go away.
heres my lighting settings and some screenshots.
I am using probuilder cubes and flipping their normals in order to create the rooms. is this causing the issue? is there a workaround?
i've used all lighting modes and there are zero overlapping uv's in the scene

[whole flare]

using unity 6 but this occurs in every version I've tried. HDRP As well.

[errant plank]

Yo I am using baked lighting and I am trying to bake this one area of the game but for some reason, the lightmap just looks horrible on it. Like there are shadows in places that are not supposed to be there. I have no clue what to do.

[dusky nacelle]

are you using any transparent shader?

if yes, then check on the double sided gi box under the material

if if's not the case, go the mesh importing setting on the mesh of that object and check generate lightmap UVs

if that's not the case as well, then create a custom lightmap parameter on the lighting setting and set the push off value to 0.001 or something

the problem will go away with any of these 3s

[arctic isle]

I think these look like denoising artifacts- if you turn off filtering you'll be able to see the individual samples. Increase the indirect samples, increase the bounces (will take longer to bake) or add more lights in areas with low samples.

The other possibility, although it doesn't really look like it, is that it's an issue with backfaces in the scene, so just make sure you don't have any backfaces exposed to the rest of the geometry where light could bounce.

[vagrant ridge]

Helloo, im having some issues with terrain and lighting. I have added a light source, global volume and reflection probe to my scene. However, after adding stuff to the global volume and baking the reflection probe my trees on my terrain have a weird flickering edge. like its some kind of reflection or something that flciekrs when you walk through the scene. Anyone that knows what could cause it or fix it. Im using HDRP.

[charred merlin]

how would i fix this? was working perfectly until today
this is mine and i had bought a new pc and forgot my login making me have to extract it

[deft fiber]

It's important to know:
Fix what
How was it "working"
What does login have to do with lighting
What did you "extract"

[deft fiber]

You could show what the flickering edge looks like
I would look at the reflection probe preview to confirm it doesn't look weird in any way, and also make some Lit materials for testing, one of which fully nonmetallic and rough, another fully metallic and smooth and apply them to objects
A rough nonmetallic object will not use reflection probes for lighting, while the metallic one will
The tree issue might appear on those too

[bold zinc]

Hi everyone,
I'm working on switching lightmaps in runtime and everything works perfectly fine on single scene, however when I want to use multiple scenes there's a problem.

I use container that stores all lightmap data, cuz we cannot use Lightning Data Asset outside Editor.

So, I bake both scenes on the same lightmap, when I load both of them at the beginning everything is fine, changing lightmaps work on both of them. But when I unload one of them and then Load it again it is not affected by lightmap at all.

When I bake them od seperate lightmaps and each scene has it's own lightmap manager and I load them 'LoadSceneMode.Single' then everything works fine, but when I use 'LoadSceneMode.Additive' then second scene is again not affected by lightmap at all, and on top of that first scene is affected by lightmap from second scene.

Someone know how can I fix that?

[vagrant ridge]

this is the best i can do, you can see the white dots on the trees. its mosty visible when walking in the scene

[vagrant ridge]

what do you mean by Lit Materials?

[deft fiber]

HDRP Lit is the most default shader that HDRP has
Placing them next to the trees as I described would help us pinpoint if the issue is purely in the reflection probe by testing if reflective Lit materials exhibit the artifacts as well

But it could be a shader related issue as well

[vagrant ridge]

so then id create 2 objects, with those 2 material types, apply the shader to them, then preview the reflection probe to see ifthey have any issues?

[deft fiber]

I would do that in hopes of getting some clues

If they reveal no issues, that points out the problem being likely not in the reflection probe itself, but something with trees specifically

[gleaming horizon]

this is my issue too Are you using the latest version Unity 6? this is because of Volumetric clouds.

I sent a bug report to unity fourm

[vagrant ridge]

yeah i am using volumentric clouds too, did removing them fix it?

[gleaming horizon]

yeah

[vagrant ridge]

thats good :)

[gleaming horizon]

I think even unchecking the shadows in volumetric clouds will solve the problem

[vagrant ridge]

alrigth, then ill see if i can do that too

thanks for the advice

[gleaming horizon]

but they will fix it in next update no worries

[vagrant ridge]

perfect

[rustic skiff]

hey i have an issue with my lighting on these walls. You can see a weird shiny effect on it and i dont really know why this is the case. I imported these assets from blender. Does anyone know where the problem could be?

[chilly kettle]

Did you mark the edges as "mark sharp"?
I guess you have smooth edges there.

[rustic skiff]

i didnt :) ill give it a try ty <3

[rustic skiff]

still the same issue :(

[chilly kettle]

Can you show your model in blender?

[chilly kettle]

You can see everywhere, that you have problems with your normals, because you didnt provide smoothing groups.
Thats a problem in Unity.

[chilly kettle]

This weird shading is caused by bad normals caused by no hard edges.

[deft fiber]

The parts that have bevels also need weighted normals
The parts that don't will need auto-smoothing by angle

[timber lichen]

anyone know how to fix this?

[deft fiber]

What do you need fixed about it

[dusky nacelle]

suppose I have a scene that needs 13 hours to be baked , now if power outage happens during the bake time after 9 hours , and if I rebake again the scene , will it take that 9 hours again?

[deft fiber]

Unity cannot interrupt and later continue a bake as far as I know

[dusky nacelle]

well, that's a bad thing..

[tulip tendon]

if your scene takes that long to bake your doing something wrong

[rustic skiff]

im not that familiar with this stuff... whats the easiest way to fix it? like what do i have to do?

[timber lichen]

The lights are on the inside, and I need them to not go out

[pastel gulch]

Hello everyone, how i can fix this flicking light?

[hybrid estuary]

how can I make it so the weird transparency error goes away?

[errant plank]

I know its been like days but the problem didn't go away

[chilly kettle]

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

If it helps, leave a like 🥳

[quartz tapir]

Hey I'm really new to these lightning stuffs. I'm not too sure why the camera just shows dark, but be something with the lightning/renderer that I messed with a couple months ago. If anyone can provide some sort of guidance/assistance would be greatly appreciated!

[dusky nacelle]

no, it's normal,, the map is so much bigger and most of the objects are set for lightmap.

it's usual to take 13 hours, I thought it would take at least 2 days to complete the whole scene. anyway, Unity should make a support for pausing and resuming the bake

[winged forge]

Why are you not using the 2D lights in a 2D game?

[loud gazelle]

I have this model as a light source for a warehouse but I have a problem with it. For gameplay purposes it NEEDS to be able to turn on and off, so using an emissive material which is baked is not feasable. From the accesible realtime lights none of them look like such a light tho as for example that type of light has an elongated light source instead of a point light if you understand what I mean

Any idea on how I might get that to look somewhat decent?

[tulip tendon]

you should not bake a scene that big in the first place

for scenes this big either use realtime GI or APV's

[dire matrix]

Question, does indirect resolution matter?

[loud gazelle]

could you explain this more? I have that issue aswell. In what cases should I bake?

I just assumed that baking is the only viable solution to most things

[young flume]

Just started with adaptive probe volumes

1. All of the light leaks
2. Why don't the windows provide light?

[tulip tendon]

it really depends on the scene

you dont really want to huge open world scenes because that would take forever

for those you should use APV's since they bake way faster or realtime lighting

[loud gazelle]

hmm do you have an compatible idea for my issue above? What should I use for that? I mean baking is not really an option anyways as I need to be able to turn it off

[tulip tendon]

which render pipeline are you using?

[loud gazelle]

built in

[tulip tendon]

yeah..honestly you really dont have any good options

to use Adaprive Probe Volumes you need to use URP or HDRP

to have realtime GI like SSGI or RTX you need to use HDRP

[loud gazelle]

hmm I don't really wanna switch tho as the game is my first actual full game and the rest is pretty simple

[tulip tendon]

in that case you would need to fake it

use ambient light that changes based on the time of day

and add volumes that change the ambient light in interiors

[loud gazelle]

II dont' really understand you, for context: The light is in a ware house and is controlled by a light switch. The player is the one deciding to turn on / off the light

[tulip tendon]

i see

i was kinda imagining a city

how detailed is your scene?

[loud gazelle]

very

the ware house is full of smaller objects

[tulip tendon]

can you show me a pic?

[loud gazelle]

yeah gimme one sec to load it up

I turned off the lighting rendering so you can see it better

[tulip tendon]

ok you dont need to bake every item there

even with the items that should not take so long to bake

what are your settings?

[loud gazelle]

pretty high, but you have to know that this is only a single room of a much bigger game

my main issue was to get somewhat realistic lighting from the lighting tubes

[tulip tendon]

that can be an area light

[loud gazelle]

but that isn't realtime no?

[tulip tendon]

oh yeah in birp is not

actually

use the area lighting and try the precomputed realtime GI

[loud gazelle]

I don't know what that is, but I assume I will be able to find a yt tutorial or something

[tulip tendon]

in the lighting tab there should be a realtime dropdown

just check that box there and uncheck the baked GI

[loud gazelle]

like this?

can you explain what that does? I love to learn new stuff in unity

[tulip tendon]

yeah

it basically bakes realtime lightmaps that can be changed well, in realtime

it is a deprecated feature but it should still work fine

[loud gazelle]

Wouldn't that be extremely resource intensive?

[tulip tendon]

no

unless you have a billion of lights

[loud gazelle]

I guess it will work

hopefully

[full umbra]

tried following a tutorial for baked lighting not exactly sure what happen here, the map is made out of non merged blocks, everything is static

[winged forge]

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@17.0/manual/probevolumes-fixissues.html#fix-light-leaks
Not sure if you fixed it already, but this is from the manual on how to fix light leaking in APV's.

[chilly kettle]

Like Minecraft blocks? If yes, that’s nothing you should bake. Because to many faces will be in the dark but will still need space in the lightmap.

[full umbra]

that was baked i dont know why it looks like that

this is how it looks with real time lighting

[chilly kettle]

Not sure how you made the map, but if its made from thousands of 1x1 blocks, baking is not the way to light your scene.

[deft fiber]

Because you have too many separate parts with seams between them, which baked lightmapping can't deal with
You would have to combine the meshes and merge their overlapping vertices before generating lightmap UVs, or try a different way to bake lighting like APV which does not rely on lightmaps

[full umbra]

i thought maybe i setup the bake settings wrong, i currently dont have any way to merge the objects, i plan to use modular 1x1 blocks to build my levels

[deft fiber]

It's not a problem with the settings
Lightmapping simply will not work with that kind of mesh

[muted pasture]

hey i was changing my lighting settings to get some ambient light when all the sudden my whole level got weirdly colored

what did i do wrong?

[deft fiber]

It looks like you got some ambient light

Since your scene's ambient lighting is from the sky, and we can't see they sky, we can't visually confirm if those glossy reflections match the kind of lighting your scene's sky currently has

[silent beacon]

Any suggestions to get the shadows/lighting of the asteroids on the right to be more like the left?

[deft fiber]

The ones one the left are being affected by multiple light sources, a white one and an orange one, and there's also ambient light illuminating their shadowy parts

[silent beacon]

Thanks... wouldn't the ambient light reduce their shadowy parts?

[deft fiber]

"Reduce" how?

[silent beacon]

Reduce... like make that shadows less (more bright)?

[deft fiber]

Ambient light illuminates the parts in shadow, which are not illuminated by other light sources
On the image on the left the shadowy sides are much less bright

[silent beacon]

I'll give it a try... Thanks

[silent beacon]

Better?

[deft fiber]

It doesn't really look like there's ambient lighting, if that's what you want anyway

[silent beacon]

I'm not sure how to get ambient light in URP?

I did add a volume with bloom.

[deft fiber]

With those settings you're showing here

Your ambient light source is a black color, so you get no ambient light
Your skybox is undefined, so you get no environmental reflections

[deft fiber]

I cannot precisely tell what you changed

[silent beacon]

Tons of tweaks, added the ambient light, any more and its probably to white on the left. Its really suddle... which tells me its good for now... 🙂

[deft fiber]

Ambient light's intensity should reflect (quite literally) the surroundings of the objects
In space you may get nothing besides the faint glow of stars, unless near large illuminated surfaces or galactic bodies
The reference you have looks even a bit overexposed to me, considering the dark background

[silent beacon]

I have a global volume set:

When I turn it off, I get this:

Maybe, I need to redo the strengths without the volume?

[pseudo umbra]

I made this level in blender with textured planes. When I put it in unity the directional light goes through the walls.

[upper fable]

The lights will if there's no shadows enabled. If your walls are one sided, you may need to enable double sided shadows from the mesh renderer in order to make the backfaces cast shadows as well

[deft fiber]

Since your bloom becomes more intense without your volume, that implies you have another volume with a more intense bloom

[pure vine]

why this black areas happen in baked light? and why the ceil gets that weird lighting? there is only directional light in the scene

[deft fiber]

First order of business check UV overlap and texel validity debug views
https://docs.unity3d.com/Manual/GIVis.html

[clear meadow]

Hi guys, can u guys tell me how to setup lighting like that?

My lighting setup

[deft fiber]

Your seems functionally identical

Ambient light may be a bit different, but with different colored surfaces also it's hard to tell precisely

[upper fable]

Also judging based on the shadows it looks like the light above is little bit more angled which may give bit more uneven lighting between different faces of the objects

[clear meadow]

What color space do you think they used for this game?

[deft fiber]

Probably gamma since it's mobile
But with this kind of low contrast scene it could be either
You only really run into limitations of gamma space if you have extremely bright lights, emissives or some type of adaptive exposure

[clear meadow]

Somehow I found something that seemed useful. But I don't know how the ambient light from the 1st picture can become like the 2nd picture

[deft fiber]

More ambient light, less direct light
You are familiar how to control environmental lighting?

Not totally sure what you mean by "can become" though

[clear meadow]

As you can see in the first pic there are parts that are blown out and the colors are not as good as what we see in the second pic.

[deft fiber]

I don't know if you mean that happens in your project or if you want to know what to tweak for a similar change

[clear meadow]

I want to know what to tweak for similar change!

[deft fiber]

More ambient light, less direct light, as mentioned

[clear meadow]

I'm trying now and how can i have a purple overlay layer like in this picture?

[deft fiber]

Color of the ambient light, I bet

[clear meadow]

I tried doing that but as you can see in the two images below, my edges were still too bright and there was no clear color distinction.

[deft fiber]

Ambient light is still clearly different between the two

[glacial imp]

decent lighting

but my pm is all black

player model

[static bluff]

hi, please help me I m running out of ideas. My terrain gets all black when I bake the lightmap. It's set as static and all

[glacial imp]

i sometimes get that issue but idk how to fix it it just fixes itself for me eventualy

[glacial imp]

scary or nah?

[spring gale]

i set up realtime lighting and yet my point light is not lighting up in the scene or when I press play

[glad fox]

I have this scene with a bunch of lights, This is an UnBaked version but If I bake it many walls become black...
I'm also using Light Probe Group but still...

Could it be because some ugly UVW Maps on the meshes?

[chilly kettle]

what is turning black?

[glad fox]

Some walls and floors, but I notice that is because the "sun" the directional light that I've placed outside.

I need it because it have to lit some stuff from outside but it will influence the interior 🤔
Maybe I could work with Layer Culling

[chilly kettle]

Sure, the dircetional light isnt visible inside.
To light big indoor areas use area lights.

[glad fox]

See 😕

This how in game looks like 🤦‍♂️

Ok I'll change the prefab and I'll palce Area Light 😉

[chilly kettle]

this doensnt really makes sense
Did you check "generate lightmap uv" in the import settings?
I guess this is the Polygon asset? you have to generate the lightmap uvs for the models.

[glad fox]

It's because the "Sun"
https://streamable.com/w5ze4x

[glad fox]

The room is totally closed but the light outside still illuminating and shadowing it inside

[chilly kettle]

do you active cast shadows on the directional light?

[glad fox]

Yep 🙂

Oh... I set the Shadow Strength to 1 looks better!

[chilly kettle]

Its set to realtime, didnt you want to bake it?

[glad fox]

Yes, I could, Indeed why not.

Definitely was about the Shadow Strength 😁👍

[muted frigate]

hello! im currently facing issues regarding spotlights and surfaces. as seen in the video, i have a flashlight that's a spotlight, and the lighting from the ceiling are also spotlights. the issue now is that sometimes the flashlight does not cast the correct lighting on the surface, and so does the ceiling light. has anyone encountered the same issue? and if so, what can I do to fix it?

I also have a FlickeringLight script that flickers the light every few seconds or so, could that be a problem?|
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class FlickeringLight : MonoBehaviour
{

public Light _Light;

public float MinTime;
public float MaxTime;
public float Timer;

public AudioSource AS;
public AudioClip LightAudio;
// Start is called before the first frame update
void Start()
{
    Timer = Random.Range(MinTime, MaxTime);
}

// Update is called once per frame
void Update()
{
    FlickerLight();
}

void FlickerLight()
{
    if(Timer > 0)
    {
        Timer -= Time.deltaTime;
    }
    else
    {
        _Light.enabled = !_Light.enabled;
        AS.PlayOneShot(LightAudio);
        Timer = Random.Range(MinTime, MaxTime);
    }
}

}

[fallen jacinth]

anti flicker with deferred Rendering Path in Light/ing , but if something moves that way - it would not Light it, like in default: Realtime ?
(no else there is no realtime bake light, if moved cube is released for pbr ambient)

[proper viper]

Hi, does someone know why ligthing doesn't go through transparent materials? Nor does volumetrics. It's weird because sometimes it works, sometimes it doesn't, I have projects made on URP and sometimes transparent materials in that project let light go through, and sometimes not, the same for HDRP.

[vestal canopy]

hey guys!
any idea why my light map baking keeps getting stuck on 50%?
here are my settings and the memory leak errors i got in the console

[spring gale]

how can I make it so my lights dont get darker as I get closer to them? (hdrp)

[tulip tendon]

color curves, exposure and other post processing stuff

[queen shell]

theres a slight issue on my wall from the emission (baked lighting)

[quasi kindle]

Why does the baking process take so much time? What I'm sure of is that I won't make a mistake somewhere. Do any of you know my mistake? I'm sure 7 hours is a very long time. At one point, even the sun, which revolved around the terrain like a solar system, was giving the light I wanted. But I don't know where the mistake is in this baking process. If anyone knows and can help I would be very happy.

[chilly kettle]

Depends on your scene, if it’s really huge or has a bunch of small objects, it will take long.

[chilly kettle]

That’s right

[chilly kettle]

Or use GPU which is way faster that CPU

[quasi kindle]

Thank you very much, I will do what you say

[quasi kindle]

Now it shows 20 minutes instead of 7 hours. Thank you very much for your help.

[glacial imp]

help me my lighting works fine when its in non play mode, but when i join, my lighting just stops working.

mp4:

[sudden cipher]

I have a layer called "front bg". When I set a light2D component's Target Layer to "front bg" through the inspector, I can see the light in my scene. However, if the Target layer is set to anything else, my light doesn't show.

[sudden holly]

Accidentally started baking lighting, cancelled it and all light just broke. The right image is before baking, the left is after. How do I restore lighting?

[obsidian rover]

Why does this happen and how can i fix it?

[candid jungle]

how can i make a normal like fade into darkness?

[chilly kettle]

What is „this“

[chilly kettle]

Convert it into one mesh.

If its baked

[glacial imp]

help me my lighting works fine when its in non play mode, but when i join, my lighting just stops working.

[leaden dirge]

check camera settings?

like exposure

[glacial imp]

alr ill check

[pure vine]

So... it means something wrong with the assets?

[pure vine]

have you tried clearing it? you can clear the lighting

[pure vine]

enabling this for the mesh fixed the problem. but is this the correct way to do it?

[sudden holly]

enabling this fixed the problem

[cold jungle]

hey

how do I give an ambient light in hdrp?

it looks black on one side

[timid veldt]

Hey im making my first game with HDRP and im noticing that my lights are bleeding through walls, but this only happens when I am far enough away from the light source, if I get closer the light leak stops and everything looks as intended. the change is extremely sudden like the moment I step X distance away from the light source the light leaking starts. Does anyway know whats causing this and how to fix it?

[obsidian rover]

the blue fading at the edge of the floor

[cold jungle]

anyone?

[chilly kettle]

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

[unkempt zealot]

how do i get this ugly shine off? this is supposed to be a rocky dirt but it looks like an oily ice cream

my other two textures don't have that silvery shine on them

what can i do to remove the shiny wet look to my dirt texture

[chilly kettle]

Lower the smoothness would help.

[copper moon]

Hi all,

I'm a bit lost here --
I dragged my player prefab into one scene where the reflection is working (the bluish-green one), and this other scene where it is not (the purple one). It looks like that extra spot light around the player isn't rendering either when I dragged it in.

I checked my global lighting settings and they seem to be the same, but the player reflection texture renders black in the purple scene.

Is there anything I should check to see why it's not working?

Thanks!

[raven jewel]

Hi everyone. I am really struggling to find out why I am not getting shadows cast from my 3D unity cube. The point light source has shadows enabled, and the 3D cubes objects has cast shadows enabled

[obsidian rover]

thanks

[raven jewel]

Yes i'm using URP. Thsee are my URP render settings. It seems like shadows are enabled in my URP settings.

[hybrid estuary]

Adding visual environment to the post processing usually works

[tiny bramble]

I’m making a 2d top down shooter and I have shadow casting. Sometimes I have thin lines that aren’t the colour of the shadow around the wall. Does anyone have a solution?

[sonic vine]

does anyone know why light goes through inclosed places even thought theres no reason it should be? (in 3d)

[winged forge]

The wall probably isn't thick enough.

[sonic vine]

Ah

Thanks

[pure vine]

when I bake the lights, I see where 2 walls intersect together. even with relatively high sample values. is there a fix for it except for using a single wall? because I don't wanna scale it.

[pure vine]

So I guess I should accept it how it is

[chilly kettle]

The best way to avoid this is to merge the mesh or hide the seam with some additional geometry

[chilly kettle]

or Stitch Seams option is available in the Mesh Renderer component, under the Lightmapping header. By enabling it, Unity will attempt to fix seams by blending color values between UV shells that share a stitchable common edge in the model.

Note that this option only works with single GameObjects

[pure vine]

So there is not an actual solution, weird. Thanks

[chilly kettle]

Its just not really possible for the lightbaker to fix this.
If you dont need your mesh to be seperated, you could join them and its fixed.

[pure vine]

so I should remake all the levels in blender and join them

[chilly kettle]

Mesh.CombineMeshes method combines meshes into one, achieving the same result as merging them in a DCC package like blender.

[pure vine]

So can I write a tool for it to combines the meshes. and then bake again

[chilly kettle]

possibly.
But automated merge is not always 100% accurate.
You could also export your walls as a fbx, merge the meshes and reimport it to unity

[timber lichen]

anyone here that could help me out?

[night shell]

you shouldn't have to remake everything in blender btw, you just adjust the problematic areas

[night shell]

better to post what your having trouble with rather than asking if there is someone that can help you out

[pure vine]

I used modular asset. So grounds, walls and ceils are all tiled and has the same problem. so basically "almost" everything

[night shell]

right, modularity is good for convivence but when it comes to lighting especially in the context of lightmaps this is a common issue one might run into

because from the perspective of the lightmapper, each single piece that you are "lightmapping" it treats them like seperate objects, sure they might appear continous to you but to the lightmapper its two different things. It will do it's best of course and will try to stitch such things (there are tools/solutions that exist also to mitigate such things like increasing padding in the lightmap UVs or enabling lightmap stitching (which is on by default)) but generally in such cases the best and simplest solution is to just actually join the meshes so that surface is indeed one continous mesh/object

just like kjarudi mentioned, just wanted to pop in to elaborate a bit more on it

if you want to get the best results with lightmapping/baking, it helps to learn more about how it works and that will allow you to leverage its strengths and work around it's weaknesses

[pure vine]

thanks

[night shell]

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

this is a good way to learn about it, but also using it as a guide to fix any more things you run into with baking

[mellow pilot]

i have a building that can be upgraded to a much bigger, nicer looking building. so i'm trying to bake the lighting with the upgraded building enabled and the original building disabled. then i make duplicates of the lightmap textures and isolate them in a unique folder and bake again with the opposite, upgraded building off and original building on.
when the player upgrades the building it's supposed to switch from the original building lightmaps to the upgraded building lightmaps. but for some reason the upgraded building lightmaps don't look like how it does when i bake the scene with it enabled.
i've been using chatgpt to help me figure out how to do it in the first place but regardless of cgpt's help i can't figure out what's happening. everything seems to work and be linked correctly when the building is upgraded but it just doesn't look like how it should.
how can i troubleshoot this or is there a better way to accomplish what i'm doing? also I'll link the code i'm using

https://hastebin.com/share/nojizuwoyo.csharp

oh and all my lights are set to Mixed mode and I'm baking with Subtractive mode

[novel plaza]

For light probe volumes, in reading the docs, it says meshes should be changed to receive GI from Lightmaps to Light probes. You have to do set this on each mesh?

[deft fiber]

I guess that's what it means
You can filter the hierarchy by type MeshRenderer and then select them and change them in one go

[novel plaza]

That worked thanks... went down a rabbit hole of trying to set it via an editor script

[timber lichen]

why does my baked lighting make these strange dark squares

please i am so confused

[chilly kettle]

https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/#post-8467202
Chapter 15 i guess

[deft fiber]

Could also be chapter 9

[raven jewel]

I created a new scene for my project. However, i just cant generate simple shadows. I am using URP. My options have receive shadows ticked on. And, my realtime point light has hard shadows set. I have no idea why I just can't cast shadows. Any help is much appreciated.

[chilly kettle]

[raven jewel]

I will try this tomorrow. I'm sure i did try clicking this. I will let you know tomorrow if it works. Thank you

[hard yarrow]

guys
i need to light up every single thing in this red part of the sword so it gives out good red effect on the sword

[hard yarrow]

pls tell

[deft fiber]

You'll want an emission texture that's black outside of the red parts
Additionally bloom post processing if you want the glow to "glow"

[hard yarrow]

hmmm ill try that

[green kindle]

Hi guys I need help for lightning in unity Is anyone come help me in voice chat

I have a light but it is not working even if I change the value of the light

[deft fiber]

I don't see any active HDRP volume in your hierarchy
You always need a volume override for tonemapping and exposure, and light intensities are then relative to that exposure

[green kindle]

I see

But I dont know how to add that

[deft fiber]

You must learn
https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@17.0/manual/understand-volumes.html

[green kindle]

Thank u ❤️

Actually I just started like 1 week ago trying to learn

[deft fiber]

And to make the process easier you can use the HDRP sample project as a starting point and to get volume override and light properties from there

[raven jewel]

Thank you. this was the problem

[dire bramble]

Hello everyone, I have a problem here with the URP light, I can't understand why the light is passing through some parts of my scene, does anyone know what I can do to solve this problem?

[chilly kettle]

Is there a bright area behind the wall?
If yes, its possibly because the resolution is to low.

[dire bramble]

There is nothing behind the wall in this case, even the other part of the wall is also leaking light, and there is only one directional light in the scene

[chilly kettle]

Ok.
Can you show the bake settings?
Did you generate lightmap UVs for that models in their import settings?

[dire bramble]

Yes, I genereate lightmap UVs for that models
and bake settings here

[chilly kettle]

Hmm, you are working with realtime GI and Baked GI at a time.
Thats possible but requests some experience in lighting.
You may start with baked only.

[dire bramble]

I understand, I'll try just with bake then and thank you very much for your help!

[chilly kettle]

Can you also show the baked lightmap view in the scene debug view?

[deft fiber]

This looks like realtime light with an extremely low resolution, not baked or precomputed

Can you confirm which one it is

Scene view has a debug view mode for baked lightmaps to rule those out

[dire bramble]

here the baked lightmpas

Another strange thing is that the shadow here in one part is correct and in the other it is weird

[meager depot]

how were the shadows created in thronefall? These look cartoony and in my game the shadows just look like standard realistic shadows

my game

[deft fiber]

Since the problem doesn't appear on the lightmap view that confirms that it's a realtime shadow resolution issue, since your directional light must be Realtime or Mixed

[deft fiber]

The example appears to use a shader that applies shadowmaps as blue color

[meager depot]

thank you!

[dire bramble]

Hmm ok, where can I increase the resolution?

[deft fiber]

Quality settings of your render pipeline
Note that having no or few shadow cascades and a high shadow distance result in a relative decrease of shadow resolution

[jolly thicket]

how can i improve this shadows quality

[deft fiber]

Don't look at it through scene view, for starters

Your players won't either

[jolly thicket]

yes

its same

in gameplay mode

[deft fiber]

TAA must be enabled to denoise high quality shadows

[jolly thicket]

gimme moment

thanks

helped

but its still little blury

[deft fiber]

Blurriness is relative to light source size/angle/diameter

Note also that your game window has non-integer zoom level (not 1x, 2x, 3x, etc) so quality suffers in general, as you can see with the jagged edges

[jolly thicket]

man big thanks

[dire bramble]

I solved the problem by increasing the normal Bias value in quality settings, thanks for the help!

[dense bramble]

Hi everyone :)) I'm struggling with HDRP shadow settings, for my game, I'm wanting shadows to appear rougher or more pixelated, my shadows are currently much too soft, here are the shadows and my settings. (originally posted in hdrp, moved to lighting)

[upper fable]

It looks like they use custom shader for most of the objects anyway so they might implement their custom shadow logic there anyway (only possible with handwritten shader, not with shader graph). What is it about your games shadows that you don't like about?

[plucky bane]

guys, I have used baked lights and they are working really good but I got a simple question, If the map going to be all baked lights then the character isn't static how am I going to light him up exactly? do I use mixed light (I tried it before and was terrible tbh) or what should I do in this case?

[shell juniper]

Assuming your entire lighting setup is static use APV (If on the latest unity preview release) or legacy light probes

Mixed light usually works nicely with baked data though, so for anything dynamic (think a flashlight) try it out

[wind aspen]

does anyone have any idea what could be causing these strange white patches that appear in this room where it should be dark?

ive already tried messing with just about every setting in the light baking menu

the only thing that affected it was lightmap resolution but it didnt fix it just changed the pattern

im using HDRP if that helps

[chilly kettle]

Quite sure this is not a lightmapping thing.
Can you have a look in the Lightmap Debug View?

[wind aspen]

im not sure how it could possibly be anything other than a lightmapping error, it showed up from baking the lightmap and the patterns in which it showed up changed when changing the lightmap resolution

how do i access the lightmap debug view? i have to be honest, i didn't know that was a thing

[wind aspen]

(also heres a closer up screenshot of the artifact)

heres the lightmap with the artifact if thats what you meant

[chilly kettle]

At this button is a lightmap debug view

[wind aspen]

thanks

not really sure whats most useful here

[chilly kettle]

@deft fiber - Any idea how to improve the lightmap? I already pumped the Samples to 2000 and use Open Image Denoiser, but i cant get rid of this artifacts on the ceiling.

[pallid bear]

What kind of lighting setup should I use for an HDRP game where the only light sources are minimal ambient light and a flashlight? I'm a bit confused by hdrp

[chilly kettle]

Why do you want to use hdrp?
Do you make something high realistic?

[pallid bear]

yes

[chilly kettle]

Baked is the most performant lighting + a realtime Flashlight i would say

[pallid bear]

so baking for the ambient light?

[chilly kettle]

if its static and doesnt change, yes.

In Indoor areas you might need additional Area lights

[pallid bear]

It's just going to be a large underwater cave

Everything is indoors kinda

But I can only have 1 ambient light source and my flashlight...nothing else makes sense

[chilly kettle]

ambient light doesnt reach indoor scenes if you bake.

[chilly kettle]

why not?

[pallid bear]

Well what else am I going to have in underwater cave tunnels?

Can't have random light in there

What about realtime GI or screen soace GI? I just need a little bit of light so it's not pitch black

It's the flashlight's job to illuminate

[chilly kettle]

Yeah, most realistic would be to have a baked environment light, which bounces realisticly (maybe) into the cave.
And for the Flashlight you can use Realtime GI that bounces in the cave.
Thats a good way to go.

[chilly kettle]

depending on the setting maybe some light illuminating mushrooms ^^

[pallid bear]

yeah raltime gi for the flashlight is good

I don't think baked environment light would work, it would just work at the entrance

[pallid bear]

I'm going realistic

but are you talking about screenspace GI?

[chilly kettle]

yeah.. and its realistic, that it works only at the entrance ^^
im only using URP, i dont know the correct name for Realtime GI in HDRP. But it seems to be Screen Space Global Illumination (SSGI) or ray-traced global illumination (RTGI)

https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/Override-Screen-Space-GI.html

https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/Ray-Traced-Global-Illumination.html

I would test it with completly realtime GI and have a look how it works

[pallid bear]

yeah ok I will experiment

I don't know if it works with the underwater of the hdrp water volume tho

the water system underwater behaves a little weirdly

I will need to experiment

[chilly kettle]

happy if you spread some screenshots here if it works 🙂

[pallid bear]

after a bit of googling around, it seems like ssgi looks bad and is lame.

see the pic in the post a bit below

https://forum.unity.com/threads/hdrp-and-global-illumination.1012255/

seems like either I'll need to do some baking or use raytraced GI

I will investigate further

[chilly kettle]

thats 4 years old ^^

[pallid bear]

true

but raytraced still looks a lot better

I have a lot of experimenting to do

[chilly kettle]

sure ^^ Thats the essence of gamedesign. Try and error 😄

[deft fiber]

All samples to 2000? I'm not familiar with nitty-gritty of denoising and filtering, but check chapters 16 and especially 17 just in case
Note that if you will apply any textures to your geometry, they'll likely cover up that level of variance easily

[chilly kettle]

yeah already did, thats why i increased the samples so high

[deft fiber]

Any luck with different denoisers or swapping to different filtering methods?

[chilly kettle]

tried everything and this is the best result (or even with 2k samples) - not much difference

[chilly kettle]

its okayish, but you can still see the artifacts on the ceiling.

[deft fiber]

Could also try APVs

[pliant bobcat]

i put everything to static and started baking the lights 2 days ago, for some reason its still 1 percent and isnt baking at all

it sais 58 days left but ive never had this ploblem before

[deft fiber]

I could hazard a guess that it's stuck
This can happen for many vague reasons

[timber lichen]

How do i add URP to one item and not the entire map

[languid blaze]

that question does not make any sense

"URP" is a rendering pipeline

your original question in #archived-code-general made it sound like you want to make a light that only affects one object

[timber lichen]

what

[languid blaze]

If not, then I have no idea what you're asking about

and you need to show what you're doing

[timber lichen]

i aint a professional

idk what that is

[languid blaze]

you don't have to be a professional to explain what you're trying to accomplish

what are you trying to make your game do?

[timber lichen]

how do i add a glow to an object basically

:shug

like this

[languid blaze]

You're asking about bloom, then.

Bloom is a full-screen effect, so you can't really just apply it to a single object.

[timber lichen]

yeah but i have bloom but it does the entire map

[timber lichen]

but i've done it before

[languid blaze]

But you can adjust the bloom threshold so that only very bright objects get bloomed

[timber lichen]

ooh

I DID IT

So what i did was

i added a new material

then clicked emission

then selected a colour

@languid blaze Do you know where i can find textures like this?

[languid blaze]

consider AmbientCG

#💻┃unity-talk message

[pliant bobcat]

what are some of the reasons

[wind aspen]

yeah ambientcg is where i get most of the materials i use from its great

[unkempt zealot]

where is smoothing? apparently it can reduce the wet shiny look of my models

[unkempt zealot]

i need these last 2 to be less wet/shiny

[chilly kettle]

In the Material

[limber veldt]

I use emission material

But any other method should work

[unkempt zealot]

in the material what? where?

i don't understand

[chilly kettle]

.. did you watch any unity fundamental tutorial?

[unkempt zealot]

Not on lighting

I’ve only watched tutorials on setting up lobby and walk cycles

[chilly kettle]

a Material has nothing to do with lighting. (maybe a little ^^)
A Material holds all the information about the view of your 3d model.
So the Color, Smoothness etc.

Means you take a look into your dirt material and change its smoothness value

[unkempt zealot]

That’s what I keep asking where is smoothness. Older posts on here say to turn smoothness to something other than 1 but I have no idea what area has that

Were you trying to say there is a material tab “in the material- tab”

Because “in the material”does not make much sense considering the normal map and height map for this texture is rough

[chilly kettle]

normal and height map doesnt effect smoothness

Klick on your model, klick on its material and change smoothness to 0

[unkempt zealot]

Ah that’s where! I’ll go fiddle with that

[runic quarry]

I have this plane with an unlit shader and a texture with alpha clipping
However, when I bake the scene the plane casts an ugly shadow, even though "contribute global illumination" and shadows are turned off

anyone know a way to fix the shadow? Ideally I don't want to uncheck "static", since there are a bunch of these planes scattered around the scene

[mossy pivot]

If you have multiple rooms and do not want real time lights to leak through walls do you use layers and lighting culling mask?

[deft fiber]

"Static" contains multiple different static flags, contribute GI being one of them
If that one's disabled, technically the mesh should not exist as far as the lightmapper is considered

[deft fiber]

The simplest option is to have thicker walls

Light layers work but it can very quickly become very manual to set up

[mossy pivot]

yes there are many hacks. But was just wondering if layers are the only way to avoid lights affecting some things in range

[deft fiber]

I think probably yes

[chilly kettle]

or manually placed shadowcasters, but that would be annoying after a while i guess

[mossy pivot]

yeah actually these are usually none shadow casting though - maybe can use fake projectors in some case. Not sure what URP has in that space - decals?

[deft fiber]

Forgot to mention
Baking won't benefit you if your cave has no static light sources at all
Since you're on HDRP you may be able to fake bounce lighting with an additional light source with a large size/diameter, placed somewhere near where the flashlight's cone hits to mimic bounce lighting
Some games have used that to a great (and efficient) effect

[deft fiber]

I don't think decals can be occluded like shadowcasting does, but I could be wrong

[mossy pivot]

no but you can be very specific with the area affected hopefully with the projector volume

[deft fiber]

Specific in what sense? I believe the way to limit them is also with light layers

[mossy pivot]

I am looking at Decal Projector component which has width/height projection depth

[deft fiber]

Those are somewhat equivalent to a spot light's Near Plane and Range properties
Though in URP point lights always have perspective while decals are orthographic

[mossy pivot]

somewhat but with far more falloff control I hope. Anyway must experiment

[deft fiber]

Decals are so different from lights that I'm not quite seeing how they would help you in your original problem of a light going through walls

Do you have a demonstration of how the issue appears

[runic quarry]

The situation is a bit more complicated unfortunately. To bake the lights, I have another person in my team do it by selecting the parent object and marking all children as static. Since these rooms move, they all have to be unmarked as static after baking. Ideally we want to minimize the amount of steps to bake the lighting since we do it so often. Another option is to use a particle system that's constantly looping, but I don't know how performant that would be

In the past we tried making an editor script to select certain objects to change the static flags automatically but that didn't work (used chatgpt)

[pallid bear]

That actually sounds pretty good. You raycast from the flashlight z, place a dim but wide point light at the hit point?

Is there nothing actually inbuilt that is better at runtime than that?

Also, this will all be underwater (unity hdrp water system) with dust/silt particles flying around...idk what kind of effect the water system has on all of that if any

[deft fiber]

Not directly at the point, there should be a sweet spot somewhere between the hit point, starting point and nearest surface, since the point is to mimic bounce lighting
It's very cheap compared to any realtime GI alternatives and can look much better than them in many situations, but the illusion may also break apart easily so it takes some tweaking and cleverness

If the dust and silt are lit particles they should work excellently with all light components

[pallid bear]

Yeah they are lit

I have some shuriken lit particles, but I also wanna experiment with some sparse fog coloured to mimic silt

Will see what looks better

Maybe both

[deft fiber]

Spot lights aimed away from the hit point are also worth experimenting with, and you could have multiple light sources if it seems there should be multiple spots where the light would be bouncing around from

While not dynamic, I found a similar technique works well for room light fixtures
The ceiling would normally be lit by light bouncing up from the lit surface, so I use a soft spot light pointed up to fake it

[pallid bear]

Are there any tutorials for that setup? Cause I can't think of how exactly I should set up the light and where

Maybe I should just experiment

But I need to fix my terrain first...digger shader unfortunately doesn't work with unity 6

I should either export the terrain mesh and color it somehow as a splat map

Or Iveheard the microsplat shader works with unity 6 and digger...I will need to experiment

[deft fiber]

Haven't seen any
It's something a bunch of people have thought of doing separately on their own, I think

[glossy stone]

I don't know if this is the right place to ask this, but I'm having an issue where a repeated texture creates noticeable patterns over large spans:

you can notice the grid created by the repeating texture

Is their a built in way of mitigating this effect?

[deft fiber]

#🔀┃art-asset-workflow

[tight parcel]

Hey, my game has baked lighting and where there's no lights it's completely pitch black. Is there a way i can set a minimum lighting level or something? Just so you can at least navigate

[nocturne shuttle]

Why doesn't my skybox light up my scene in Unity 6 Preview?

[neon rampart]

yo. I'm trying to bake the lighting of a team fortress 2 map, 2Fort, but whenever it's done baking I get a nicely shaded terrain but with loose objects becoming dark and unshaded

I'm pretty new to lighting so I'm wondering what's happening here

here are my settings

[neon rampart]

the object is set to static though

it's a random bit of scenery that won't move anywhere so I set it to static

[deft fiber]

Environmental lighting from the Lighting window
But note that if you're baking lights, ambient light will be occluded from areas it cannot reach

[deft fiber]

Your lighting might not be generated, according to this
And likewise when baking the lighting from your environment will be occluded from interiors

[deft fiber]

It may not have lightmap UVs, and small objects like them probably should not anyway
Even if they're contributors to baked GI, you can set them to receive baked lighting from probes rather than lightmaps
You will need to add light probes for that
TF2 also uses probes for illuminating any non-brush static meshes

[tight parcel]

Yeah i noticed that before but most of my game is indoors so that doesn't work for me 😔

[deft fiber]

The brightness of the darkest pixels can be boosted by editing the lightmap texture assets directly, though it might not look very good
Bakery has a feature for that that doesn't require editing the assets

[regal bone]

hey guys i need some help with my light baking, I've made sure to set my models to Static and generate lightmap UVs, but most parts of my model isn't lighting up, only my yellow pipe has baked lightmaps. The white and orange textures are the emissive lights. How do i fix this? im using urp

heres one with a realtime light

these r my settings

[timber lichen]

how do i stop my lights from buging into the side like that? I've messed with the tilling option does nothing

[languid rune]

Hello, why I cant use mixed mode since I only have 2 lights in my scene ? (this one and directional)

[shell juniper]

Are your lights also set to baked?

[regal bone]

Hey, just a few minutes before you sent that message I managed to solve it 😂
everything was okay, but my textures were metallic so i had to put a reflection probe for the metallic maps to light up

[gentle dune]

how can i make the skybox have less effect on the terrain?

[pallid bear]

There is a setting for that, can't remember off the top of my head

maybe window -> lighting -> environment, then there's an option for skybox intensity or something like that

[cinder night]

Anyone have a good tutorial for Lighting?

also how do you add texture to stuff?

[timber lichen]

wrong server

wrong server didnt mean it here

i meant it for erlc support

they are absoultely useless in there

[nocturne shuttle]

is there a way it can light my scene when my lighting isn't baked?

like how it worked in the older project

[timber lichen]

gtag fan game??

[nocturne shuttle]

maybe

[timber lichen]

Can i show you mine?

[nocturne shuttle]

sure

[timber lichen]

how did you make that map btw? Is it probuiilder or blender

[nocturne shuttle]

I use probuilder