archived-lighting

[deft fiber]

After
Otherwise there isn't much to look at

[wispy dome]

So, Im in uv overlap mode but it only shows white

[deft fiber]

Then you might not have any significant UV overlap issues
Does the baked lightmap look weird in some place?

[wispy dome]

I dont think so

so i guess it is fine then?

[deft fiber]

You tell me I suppose

[wispy dome]

welp, thanks then!

thank you too!

[deft fiber]

Looking at the baked lightmaps themselves through the lighting window can give you more information about potential issues, if you know what to look for, but if there visually isn't any issue then it's unlikely that effort needs to be put into solving issues that may or may not exist

[tender breach]

Why do I get these lines on the screen on every object

[deft fiber]

If you have SSAO I'd try turning it off to see if the problem persists still

[cursive rapids]

Hey, i actually learn unity, and i created "backrooms" level but my light have problem, is very high in roof, what is the problem ?

[chilly kettle]

How did you create the lights?

[cursive rapids]

In game object then light then I applied it to an object to make a light like neon

[neon pebble]

what kind of light?

point/spot/directional

[cursive rapids]

point

[neon pebble]

i think you need spot light instead

try it out and see if it fits, it will only spot to a certai direction

[chilly kettle]

Do you want baked or realtime light?

Its nearly not possible to get a good result with realtime lights there. You will always have a light blob on the ceiling.
I would recomment using a big area light for the whole room and bake the light.
Then add emission to your "lights" so it looks like they are bright.

Or like Murado said, use spot lights with a very far angle

[zenith flax]

Is there any way to have shadows/ights follow the QualitySettings.shadow variable in URP? Or is the only two options for shadow manipulation in URP shadow resolution and shadow cascades?

[cursive rapids]

okay thank

[deft fiber]

Probably pixel light limit

[quick jackal]

How do I fix this ( what are the deafult coords and rotation for the light )

[deft fiber]

What's the "this"

[ancient laurel]

Hello! Can someone help me and explain why when I load the scene directly the shaders and shadows look good, but when the load goes through a transition from another scene the shadows break?
Some people have told me that this is an editor error and that was when I was building the game for the first time. But when I made a new one after a while, my build now looks like on the third screen.

[gusty jetty]

what's this weird screen space reflection caused by? i'm using raymarching

it's all black for some reason

[deft fiber]

SSR cannot reflect anything that's not in screen space, hence the name

[gusty jetty]

Added reflection probes and it works now

[deft fiber]

SSR and cubemap reflections work in tandem, with SSR taking over for the pixels it's able to

[jaunty sun]

Hi the Unity Team , do you have any idea why on my main camera I can see the sun reflection but on the scene screen i have nothing 🧐

[chilly kettle]

Do you have the Scene Lighting activated? 😄

[jaunty sun]

Yes but the problem it's not that, I want no light 😅

[jaunty sun]

I thinks i can disable the sun when he is at 180 in x rotation 🤔

[chilly kettle]

You want no light?

[jaunty sun]

yes

Because to create a day/night cycle I rotate the sun in X with an animation but when he is between 180 and 0 (night rotation) I have a this little reflection on all object in scene 🥹

[chilly kettle]

There are plenty day/night circle tutorials out there

https://www.youtube.com/watch?v=L4t2c1_Szdk

[dry kindle]

hey, couldn't find the words to search for this online - i'm playing with my scene lighting right now and was trying to figure out what light modes i can make use of for lights that i want to be toggleable (e.g. hitting a light switch) in-game? do i simply need real-time lighting for that or can i somehow configure the lighting engine to be able to switch in and out of using baked lightmaps on a per-light basis?

[chilly kettle]

For this you have to use realtime lights.
You can switch lightmaps with 3rd party assets also, but thats not a smart way für a lightswitch.

[dry kindle]

thank you for the guidance, is it possible to precompute the GI with realtime lights then? since they will be in static positions

i switched to realtime but there's an odd effect where as i move around, lights near me get toggled on and off - it seems related to which light probe i'm near...?

[chilly kettle]

mhh. dont know. maybe with hdrp

[chilly kettle]

Do you use urp?

[dry kindle]

oh! i'm on URP by the way

that is useful info

yeah

[chilly kettle]

URP only shows a maximum of 8 lights per mesh

[dry kindle]

ah, so it's because all of the lights are affecting the ceiling?

i would expect it to then cull lights based on distance, not just random ones

[chilly kettle]

it does, but if there are more then 8, getting confused😄

[dry kindle]

i getcha, dang

that is tricky

yes, as i disable lights below 8, it stops

[chilly kettle]

i think there is a possibility when changing rendering path from forward to deferred

but not sure it urp supports it too

[dry kindle]

haha, i just read that as well in a forum thread

[chilly kettle]

But, normally you dont want this many realtime lights in urp

because you use urp if you want to do a game for low end hardware?

[dry kindle]

yes, I didn't want to do anything expensive, just have light switches for the house

but maybe that's just expensive

I'm sure I can just do some tricks and reduce light count per room and sneakily disable lights in rooms you're not in... that kind of thing

[chilly kettle]

Well, working with urp is working with "faking" stuff 😄

Like putting a black plane infront of the camera and changing its alpha, or working with postprocessing.
Or just splitting the ceiling into a few more meshes.

[dry kindle]

I was getting the problem also on walls and stuff, which was a bit surprising, but i guess even with very distant lights it counts towards the 8 limit

[chilly kettle]

depends on the lights range

[dry kindle]

anyway, I'll just try deferred, maybe it fixes the issue without more hassle

actually! the forward+ path seems to just fix it completely

https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@14.0/manual/rendering/forward-plus-rendering-path.html

[chilly kettle]

ah nice. im on a older version of unity. dont have this right now

BUT.. realtime lights are expensive 😄 keep this in mind

especcially point lights

[dry kindle]

yep, it'll be one of the first things I look at optimizing

but nice to have the option for design time at least

[dry kindle]

you may be interested to know that based on my research forward+ has some rather exciting optimizations built in for this - real-time lights are clustered together in an improved culling step to optimize their rendering, unlike Forward or Deferred rendering

(also, thanks for your help!)

[chilly kettle]

👍🏻

[stone sigil]

Does object scale affect lightbakes? I scaled a scene up 10x and got very different lightbake results with the same settings

[chilly kettle]

yes it does. the resolution is texels per unit. If you scale it up like 10 you get 1/10 of your quality

[stone sigil]

Ah, so for nice lighting should I just scale my stuff pretty small or is there a drawback to that?

[chilly kettle]

well, you should keep the scale in mind 1 unity unit = 1 meter

and you are fine

[stone sigil]

Practically that doesn't really mean much though...

[chilly kettle]

Well it does.
Its important to keep everything in a realistic size.

[stone sigil]

Why? You could just scale everything down and the player wouldn't see the difference. (Assuming you wanted to get good lightbakes quickly)

[chilly kettle]

Because you will get problems with shadows in small scales for example

[stone sigil]

Okay, that I can accept

[chilly kettle]

well, do what you mean. I can just tell you how you should do it ^^

[stone sigil]

I appreciate the advice. I just was curious since I had two scenes at different scales and even though I upped the resolution in the larger scene my results were still pretty bad. It was only when I scaled the larger scene down that I got something decent.

[chilly kettle]

Its like when you have a 1x1 meter poster, and you put a 1000x1000 pixel image on it. It looks fine.
But if you have a 10x10 meter poster and use the same 1000x1000 pixel image, it looks worse.
But on the other hand, you should always try to stay in a realistic range of scales, because unity dont really like very small scales.

[thin kernel]

Does anyone here know how can I add shadowCaster on tilemap? Shadowcaster2d and comositeshadow caster dont do anything(changed material in tilemap rendered to sprite-lit-default)

[timber lichen]

URP

I'm 3 years deep into Unity but haven't touched graphics. Made a simple scene in blender for what will be the map.
I don't know how to make water
I don't know how to do lighting/shadows
I don't know what the topology for terrain to look like in order for it to be "natural"

Links to resources would be great, or more direct suggestions

[tawdry schooner]

There are tons of tutorials for all of your artistic questions on youtube. To improve your scene though, I would start with adding a custom skybox, then filling out the environment more with some terrain/rocks. Find a free asset pack that can you practice environment staging with so you aren't bogged down with modeling new things from scratch. Here's an example tutorial for doing terrain that's decent. Terrain requires some assets/textures before you can do it though. https://www.youtube.com/watch?v=2XdQkwSw-bA

[timber lichen]

The player will not be on the beach

Only on ship

If that changes anything

basically terrain will not be closely inspected, I guess I just need to make the "environment" look good

[timber lichen]

Lol

yeah I'm diggin it!
4.5 fps

Cool tutorial but nothing I don't know already (that I intend to use)

terrain maker is not applicable here, I think

fog is a good option, should try

and other global lighting settings

I'm looking for something different though

[blissful ether]

What type of game are you looking to make?

But regardless, I'd start with learning some of the light settings more in depth, tune it to something you really like the look of in one of the sample scenes and start a fresh project with that. It'll help you make better decisions for your level design.

If you're not a 3d designer, use models that have already been made to practice level composition, and figure out what looks good to you. Analyse shots from games you like for inspiration. You can then tackle custom models etc if that's something you're interested in.

It's important to break the problem down into different areas you can focus on.

[timber lichen]

Multiplayer FPS

Cargo ship map, all gamplay will be from that ship

[blissful ether]

Yeah in that case honestly I'd just get some nice light, and block out the level and playtest from there. Mechanics are going to be more important than visuals to a game like that.

After all the game can exists with coloured blocks

The game can't exist with just pretty visuals

[timber lichen]

Most of my mechanics are done

Player gameplay is like 80%

[blissful ether]

Great well I'd follow what I said above.

[timber lichen]

I've been mechanicing for 4 months 😢

[blissful ether]

Allow to me to repost this, have any advancements been made recently?

Does anyone know if there's a way to get the high quality bounce lighting offered by bake lighting with realtime shadows cast onto / from moving objects?
https://support.unity.com/hc/en-us/articles/207820473-Mixed-mode-lighting-my-baked-objects-are-not-casting-shadows-on-RealTime-objects
All I've found is this so far.

[opaque prawn]

oy lads. i've got a point light asset and it illuminates objects that are covered behind another, and i'm not sure what to do to fix it.
this here is an aerial view of what i'm seeing.

i've done some research on my own, but the answers i've seen some people with similar issues get are a little too advanced for me to understand, and i feel like this is something with a simple solution that i just haven't seen.

[tawdry schooner]

does the light have cast shadows turned on?

[opaque prawn]

it does

[tawdry schooner]

you may have shadows disabled in your renderer settings if turning on shadows doesn't fix it

not the most optimal solution though

[opaque prawn]

i've confirmed i have shadows turned on for both the lightsource and the renderer settings

[blissful ether]

Create a test scene with plane walls, see if it behaves how you expect

[tawdry schooner]

I would check your mesh renderers to see if they have "cast shadows" on as well because that will also let light pass through them. If that doesn't work, I'd do L's suggestion and test on a fresh project with default settings.

[lean vault]

I'm having an issue with light currently with the 2D Universal Render Pipeline. My issue is moreso with the normal-map I'm assuming, but not sure what's wrong.

Currently, I have a 2D Spot Light, and when Normal Map is disabled, it shows a full ring around the light.

The moment I turn on the normal map, direction 0, the light ends up only shining in a certain area, even though the top face should still be lit, right?

It works well when lighting the edges properly, just doesn't feel like it's working on top properly.

[chilly kettle]

Is this a 3D Model you got there?

[lean vault]

Nope, everythings 2D

It's got a Normal Map though, so lighting treats it and acts like 3D

[chilly kettle]

Is the normal maps type set to normal map?

[lean vault]

Yeah, if that's what you mean, ^

It's set to Normal Map

[chilly kettle]

in the import setting

[lean vault]

Where do you mean?

[chilly kettle]

In the import settings of your normalmap texture

[lean vault]

All I had to do was make it a secondary texture, under NormalMap, and then throw the normal map in the texture place.

[lean vault]

Ahh

I have it set to that now.

It's reacting better now.

Still not quite perfect, but better.

[chilly kettle]

Good - maybe increase the lights range if you want it to brighten more space

[lean vault]

I'm just not sure why it's having such a harsh line of light now I guess. I figured it would light in 360 degrees, but seems to only be lighting in 180

[chilly kettle]

sadly i have no clue about 2D 😄

[lean vault]

That's fair, it's for sure an interesting thing making 3d lighting in a 2d space.

[chilly kettle]

Is your game really 2D?
Looks more like 2.5 D

or is it really just a flat 2D Image on the Y Axis?

[lean vault]

Tis Isometric view, but all art is pixel art 2D

[lean vault]

Yup

[chilly kettle]

Maybe this helps https://www.youtube.com/watch?v=-gzw_DHfoKU

[lean vault]

As ya see, it's all flat, on the Y axis

[chilly kettle]

If it does, tell me whats the problem

[lean vault]

I'll give it a watch

Unfortunately that video doesn't talk much about Normal Map's, which is where I think the root of my issue somehow is lying, due to the light works normally if I disable the normal map.

Without Normal Map:

With Normal Map:

[blissful ether]

I'd be curious as to what your normal map actually looks like

[lean vault]

It's in the thread

Although I've changed it a bit due to suggestions

[thin kernel]

I have issue with spot light 2d. For some reason it isnt smooth and draws circles as you can see on them image. Whats the problem?

[timber lichen]

hi guys, how to get rid of theese badly baked edges?

[opaque prawn]

that helped me figure out what was wrong, thank you

[blissful ether]

No problem, what was it in the end?

[opaque prawn]

truth be told i'm not sure. i think i mustve goofed something up when making a prefab and editing the settings. but following your suggestion prompted me to troubleshoot each property to find out what was causing the light to come through, and the shadow strength of the prefab kept acting like it was at 0.1 instead of just 1

or i just never properly adjusted that property?

[drowsy talon]

Does this surface consist of several different meshes? Are the seams on the borders between meshes?

[drowsy talon]

Does your main camera have HDR enabled? If not, try enabling it. Also, are you using Gamma or Linear color space?

This kind of banding can sometimes happen when your render target doesn't have sufficient precision, and will be made worse by the use of Linear space. Switching to HDR should force the render target to FP16 format by default, rather than 8 bit per channel

[deft fiber]

Camera dithering should work with 2D lights as well afaik

[errant marlin]

howdy all, New to unity and just starting to mess with lighting as of now.
So, the main issue is that the light (spotlight) is projecting itself through walls on the floor and on other walls and generally im just at a stump at what to do.
I made the light red to try and showcase it easier, alongside the inspector.
And to show the walls with their box colliders:

[thin kernel]

Where is that? I dont see it

[timber lichen]

surface consists of several meshes yes, and they slightly overlap but no z fight whatsoever

[charred moth]

guys can someone help me

idk what i have donewrong

oh i fixed it

[regal turtle]

Guys when you only look at these two cubes with Spotlight, you get a bug like this

How can i fix it

[oak dawn]

this looks a bit like z-fighting, which is caused by two objects being placed in the exact same place

[burnt brook]

How can i have these reflections without Realtime lights?

[regal turtle]

no, it only happens when you see it with spotlight and the two objects are not in the same place

[burnt brook]

I already found a solution: https://github.com/zulubo/SpecularProbes

[oak dawn]

then it's probably a shadow artifact if you have them enabled, spotlights do seem to have a lot of shadow acne and stuff especially on soft shadows, but if it's not z-fighting or shadow artifacts then i actually don't know what could be causing this

[wild scroll]

I have some serious issue with lighting, it makes it impossible to work on my project. Whenever I do a slight change the global illumination preprocessing starts calculating but I've turned it off.

Does anyone know what's causing this?

[little condor]

That's just a feature of baked lighting. If you have Auto Generate enabled, Unity will rebake the lighting everytime it recognises something in the scene has changed. So just keep it turned off and bake it manually when you need to.

[wild scroll]

The problem is, it is turned off

[little condor]

Ah, sorry, I didn't read what you wrote properly. Must admit, never had that issue.

[solemn yarrow]

this is also exactly what I needed thank you

[long island]

Anyone know how to bake lighting (only have certain lihgts enabled) for different lighting scenarios?

[oak dawn]

if i understand your question correctly, you need to bake a few different lightmaps and then switch them through script, you can check out tutorials on youtube or just google it if you need to

[crisp marsh]

guys, my area light does not work, what should i do?

[deft fiber]

It does "work", so you would have to be more precise in describing the issue

[lone pier]

Is there anyway to increse a point lights quality further? The lighting is passable when it's range is < 100, but past that I get shadows that looks extraordinarily pixelated

It also culls out way too close

[oak dawn]

if you're using birp sadly no, other than lowering shadow distance or increasing shadow resolution, also the second image looks like you're using too high of a shadow bias

[lone pier]

Sorry, I am a huge novince to Unity's lighting terms. What is birp and where do I adjust the shadow bias?

[oak dawn]

though you can look in there was an asset for BiRP that adds dithering edges to shadows which helps sell the illusion of higher resolution, but it does add noisy visuals so you have to choose a trade-off between dithering or pixelation (i prefer dithering)

[lone pier]

I could live with dithering

[oak dawn]

BiRP is built in render pipeline, it is the one you get when you create a project you select 3D or 2D, if you select URP you get urp, if you select HDRP you get hdrp (which has nicer shadows as well)

[lone pier]

Gotcha

[oak dawn]

you adjust bias by selecting the point light and next to the shadow options (soft, hard or off) there are 2 values, normal bias (which pretty sure doesn't affect a lot) and bias, but if you lower it too much you get shadow acne which looks bad so play with it

[lone pier]

I try to avoid HDRP as much as possible because it's my understanding that won't work well on older or mobile devices

[oak dawn]

oh and about the dithering shadows asset first of all it's on github and you need to be using BiRP and deffered lighting (which is less performant for mobile games but better for huge games with tons of lights)

[lone pier]

Awesome, I try to always use the deffered renderer

Do you know what the git repo is called?

ah, found it. It's called UnityDitheredShadows

Yeah, adding the filter, adjusting the bias, moving the point light closer to the map, and decreasing it's range a little bit makes it look a ton better. Thank you!

[lone pier]

One last question, do you know why the shadow distance decreases itself when running the game, even though I have it set higher in the settings out of play mode?

I have it set to 150, but during play mode it drops to 20 or 50

[remote dirge]

Does anyone know how to resolve directional light going through meshes entirely. SS is a completely closed mesh that is still receiving light from a directional light (hdrp)

[little condor]

It looks like there are no shadows being cast. Check that shadows are enabled on the light (which it probably is) but also check that your objects are are set to cast shadows too.

[remote dirge]

Looks like I've got all of that configured properly. Good suggestion tho. Hmm

Just made a super quick little box in pro builder - I guess I would expect the right and bottom walls to be shadowed

Rather than completely illuminated on the entire plane

[oak dawn]

sorry for the late reply, but it must be something to do if you have multiple quality presets or you set the distance at runtime, and i checked out the scripts from the dithered shadows and they don't seem to affect it in any way.

[deft fiber]

Decrease shadow near plane to reduce the cutoff, and decrease max distance to increase overall quality
I see you're using shadow cascades so make sure those are set up right

[dry kindle]

my directional light is showing up as a specular highlight on shiny surfaces indoors - is there a way to stop this from happening?

[deft fiber]

Shadow casting geometry

[dry kindle]

this is indoors - the directional light does not light up the surface at all, so i'm certain the roof is shadow casting

it's only the specular

scratch that...if i disable the light it does affect the lighting, somehow

ah. for some reason shadow strength was set to 0.9

[little condor]

Does that box have polygons on the outside. They should be casting shadows that the interior of the corridor receives.

Alternatively at a stretched out cube to the top and left gand side to force the correct shadows.

[remote dirge]

I created a new project using hdrp and imported the same model and shadows functioned how I'd expect. I don't know what's wrong with my current project but I'm trying to compare the two

[deft fiber]

Light and shadow settings in your HDRP assets most likely
When working with HDRP it's often good to use the Sample Scene template so you get all kinds of settings ready to go, and plenty of references for lighting setups

[remote dirge]

I think you're likely right. I think I'll go ahead and do that. Really appreciate all the help, guys/gals. Have a great day!

[deft ingot]

is there a way for lighting to work properly given that all floor tiles are separate meshes? I'm a complete novice with basically all things lighting so eli5

[native viper]

there is a way... uma merges seams in different body parts when that happens... maybe look there

the problem is with your normals

[whole wadi]

Basically, you have to copy the normals from one mesh to another where the vertexes match.

[keen crow]

I can't figure out why there doesn't appear to be any ambient light in my scene.
Anyone have any ideas?

This is URP. Ambient environment light works fine in other scenes 🤔

I've tried Color and Gradient mode with no success. Same for auto-generate vs manual

Hmm. Seems to be the shader I'm using. It's a pretty simple triplanar lit shadergraph tho so idk why it would handle environment lighting differently

Ah ok Ambient Occlusion was set to zero in the graph, but it's supposed to be 1. Sounds backwards to me but whatever 🤷‍♂️

[errant plank]

Guys, when I bake my lighting it all looks dark, how do I fix this

[little condor]

Need more details. There are certain steps you need to bake lights, what have you done so far? Are your lights set to mixed or baked? Are your gameobjects set to static, and have you generated uv light maps for them? Etc.

[errant plank]

I made everything baked, I turned every object I want to be baked static as well as the light source I have I also decided to have my shadows as soft shadows, and my range was 10 and my intensity was 1

[little condor]

If you view the Baked lightmap debug, can you change the lightmap exposure to see if there is some sort of lightmap there?

[deft fiber]

The lighting appears seamless up until you go above 4 lights, and 4 lights is the default per object pixel light limit

[burnt brook]

What is this Lightning?? (I'm using 4 spot and 1 area light)

[deft fiber]

Looks like it could be texel invalidity
https://forum.unity.com/threads/faq-blocky-artifacts-appear-when-i-bake-a-scene-how-can-i-fix-them.951444/

[burnt brook]

I don't have Double Sided GI because i use urp

I enabled both render faces and now it looks fine

[burnt pendant]

Good Day everyone,

I have been stuck for a few days on lighting.

I am trying to replicate these type of lighting from Neon Bars that what i assume to be made by PostProcessing Bloom effect which i have made fine in my world. But what i cant replicate, is how these neon bars emit actual light. I know the unity PP Bloom doesnt actually emit light so they must have maybe put an Area light intop of the Bar? I have tried all sorts of combinations and its actually messed up my project (i can show later but my lighting is totally messed up). May i ask anyone here for help?

Yes i do Bake the light aswell, maybe im doing it wrong with the wrong settings

[oak dawn]

i don't know which one's the one you are trying to replicate, but the way to emit actual light from the neon bars is to either bake or use realtime global illumination, not so sure about how to use realtime GI in unity but baking should be fine if your scene is static

[burnt pendant]

okay, im planning to replicate jsut the idea of placing neon bars that light up the room to create atmosphere

Do you think that these creators added a point light just to add to it?

[chilly kettle]

Hi. You create a mesh that looks like the neon bar. Then you create a material in Unity with a Emission (Blue or Orange in your case).
If you set it to static and bake the light, it will effect the surrounding static models.
It will have decent effect for close objects.

[deft fiber]

For (mostly) accurate reflections you'll also need box projected reflection probes
And for it to affect dynamic objects there must be light probes

[burnt pendant]

Okay thank you everyone, I will redo all my neon bars, and add the probes.

[oak dawn]

Hello everyone, is there a good way to optimize reflection probes? GTA 5 has a ton of reflected cars but the performance is very good on that game, and from a post i read, it says it renders a cubemap consisting of 128x128 HDR images and also it uses LOD meshes and textures instead of the full quality ones, and it doesn't render dynamic objects such as cars and players, is there any way to recreate that on unity's reflection probes? i can only think of creating a low quality scene and put it onto another layer that doesn't get rendered by the camera but only by reflection probes, but that seems like a very hacky solution, is there a better one?

[deft fiber]

That doesn't sound too hacky to me

It'd be cool if we had LOD bias setting just for the reflection probe but since we don't the only options left are kind of hacky

[oak dawn]

well, alright then

[deft fiber]

You can also toggle rendering layer visibility for the scene view so that may help working with it

[burnt pendant]

Hello guys, i have made progess with Neon bars. Just curious though, what would cause this grainy reflection in the corner?

[chilly kettle]

Maybe Texel invalidity, but not sure.
You can check this by checking the editor debug view and set it to texel invalidtiy

[deft ingot]

Is there a way to raise the limit

[burnt pendant]

Sorry, i found the debug, but i cant seem to find the Texel Invaliditym

[burnt pendant]

sorry if im spamming too much, but here it is, the place i marked blue is the screenshot i took, It seems to look okay?

[deft fiber]

Yes, in your quality settings (quality settings asset if URP)
You'll also want to decrease light ranges enough so they don't reach more floor tiles than your light limit permits
Other options are to look into deferred and forward+ rendering paths

[deft ingot]

Yeah I had lower light ranges but that made the atmosphere way darker than I wanted it to be, can you screenshot hnity UI and like circle where to click

[chilly kettle]

looks ok.
Maybe you find your issue here:
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/

[chilly kettle]

Looks like Chapter 19: Compression artifacts

[deft fiber]

My money's on Chapter 16

[burnt pendant]

thank you both ill have alook

[deft fiber]

The seam in the wall that separates surfaces with two different lightmap resolutions doesn't help either

[burnt pendant]

oh you know what, before i read, Compression sounds right because that piece of the wall is a piece i copied from a piece that was a larger section and shortened it...

[deft fiber]

Depends what render pipeline you're on

[burnt pendant]

no it doesnt ill for sure fix that

[deft fiber]

Since you're using emissives, they need a lot of samples or you'll get denoising artifacts

[deft ingot]

Im on whatever the default lighting pupeline is

[deft fiber]

Then you can find pixel light count here
https://docs.unity3d.com/Manual/class-QualitySettings.html

[deft ingot]

Thanks im away from home rn but saving that for layer

Later

[leaden pilot]

im trying to make a pixel art based game but my lightning is too high graphics lagging my system i dont need these is there a way i can lower the quality of this?

[oak dawn]

i'm guessing you can just remove lighting all together and use a single ambient color, but everything will look terrible and also games from the late 90's used some sort of realtime Gouraud lighting and baked lighting, so you can lower the shadow resolution or disable shadows.

[leaden pilot]

but those damn lines my computer dont like is there a way to get rid of them?

[deft fiber]

You should start by pinpointing both the performance problems and the visual issues
If you change shadow settings or disable them entirely as suggested it should become apparent if either or both of the problems seem to respond to it

[gloomy marten]

hi, how do I make a light setup like the one on the left using URP?

[stark temple]

You mean on the right? I have no idea why you don't have the option to switch away from Color and use Filter and Temperature. Presumably you're on an older URP version

[regal mulch]

how do i get rid of this?

[stark temple]

Kinda looks like your vertex normals are wrong

Though I could be looking at something different because "this" is vague af

[regal mulch]

ill try to make a clearer example

[stark temple]

That's just zfighting. You have two intersecting pieces of geometry

[regal mulch]

does the zfighting influence the lighting?

[stark temple]

I still think you also have issues with vertex normals. It's unclear what your setup is, but you should also note that if you're not using deferred lighting you can only have a limited number of lights affecting a single mesh

[regal mulch]

reduced the lights and it looks better now thanks

[gloomy marten]

i using unity 2022 and urp 14.0.8

[stark temple]

Try switching this to All Visible

[gloomy marten]

nothing change

[chilly kettle]

i have never seen this filter and temeprature on URP.
im quite sure thats a HDRP or Built-In thing?

[stark temple]

Yes, it exists in URP.

You may be able to get it via switching the inspector to debug mode and checking Use Color Temperature

[stark temple]

Is the color space Linear in Project Setting > Player > Other Settings > Rendering?

[gloomy marten]

oh, it worked
thanks

[deft fiber]

It's been an option for some time, this is from 2021.3.

[deft fiber]

Exceeding the pixel light limit on your mesh is one of the problems you have, but there's clearly more

[timber lichen]

I have the option to enable baked cookie's which I enabled them but they aren't showing up on my light source's, I also have the cookie texture
unity version is 2020.3.25f1

[burnt pendant]

Hi, im not sure if this is the right channel, but i have 143 overlapping UVs in the console, how do i fix this? i saw on youtube you Click Generate UVs on the imported objects but i havent imported objects

[timber lichen]

I am using built in URP so when i remove URP from my graphic pipeline it shows up

[dry kindle]

is there any way for me to simply put the scene in "fullbright" mode while in the editor? the button to disable scene lighting kinda sucks because it just switches to some kind of surface lit mode where if you look at a surface at a shallow angle it turns completely black

[deft fiber]

Where are your meshes from in that case?
https://docs.unity3d.com/Manual/ProgressiveLightmapper-UVOverlap.html Check this

[burnt pendant]

i am using ProBuilder and its Boxes

i have seen this and went to the UV Overlap and there was no Red a peering

[deft fiber]

If there is no visible problems, you might have no problems
ProBuilder has options for lightmap generation, I think, but I don't recommend using meshes controlled by ProBuilder for baking

They can be exported out to non-ProBuilder meshes
Otherwise you may run into weird issues or ugly results

[burnt pendant]

How do i use probuilder blocks without the meshes?

By exporting out do you mean export the model as an FBX file an reintroduce it?

[deft fiber]

Meshes built by ProBuilder are procedural and in a way unpermanent
They can be saved out to simple permanent non-procedural meshes, but I don't know the exact buttons to press for that

[burnt pendant]

Sorry for being dense, im very new

okay i get you

[deft fiber]

If ProBuilder has an export option it's probably that
But I don't expect you need to use the separate FBX exporter package for it

I would make a permanent version of it for baking if I used ProBuilder, but I don't think it's guaranteed to solve any issues here

Just avoid unexpected future issues

There probably are some lightmap UV options within ProBuilder also

But I've been avoiding the tool so I can't give specific instructions

If you only see white in the UV overlap debug view then it's no harm anyway

If you look at the baked lightmaps through the Lighting window you have another set of debug views for the texture itself which may reveal issues you might've missed in scene view

[burnt pendant]

0kay i understand i am actually remaking the whole building because settings were getting too messy. Ill see what probuilder has with the UV light

ill check that out

[burnt pendant]

Thank you very much for your advice and help!

[deft ingot]

is there a way to prevent these little corner shadows? I am using soft shadows already

[deft fiber]

Can you point out exactly what you mean by corner shadows?

[deft fiber]

Thanks! To be able to soften those shadows you'd need HDRP for its advanced shadow filtering, or if you're not using HDRP then a custom asset that implements complex shadow filtering to your choice of render pipeline

[deft ingot]

how would I add HDRP?

[deft fiber]

There's instructions for it pinned in #archived-hdrp but let me warn you
HDRP is much different from URP and BiRP and fully expects you to know how to work with industry standard lighting systems
Furthermore upgrading to HDRP is not a reverseable process

[deft ingot]

oh alr then I'm prolly just gonna accept corner shadows then

[deft fiber]

That's probably for the best
If you want to try HDRP I recommend you create a new project with the HDRP template, import your room into it and then polish it up using HDRP's features

See how the process feels and how it works out

[tired inlet]

Oh

My

God

Hello everyone, I am pulling my hair out over here

In HDRP I have a bunch of baked lighting, however now matter what color I set on the light some of them bake as dark orange

But it only applies to a few of them and any new ones I create

Every other baked light bakes correctly

Here's a cold blue light baked

Once again that's a blue light, it does not matter what color I set it to it will bake dark reddish orange

Those other two lights on the wall are mixed and bake with their correct color

Anyone have an idea? ❤️

[glossy pike]

when i bake lights the GI time keeps going up and it doesnt bake at all. help?

[glossy pike]

im gonna clear the gl cache and see if this works

it doesnt

im getting this error: Progressive Lightmapper: Material render job skipped - out of system memory.

o shit i know why 💀

[tired inlet]

Okay I'm not sure why, but it seems to be because I'm decoupling the environment baking skybox to bake a brighter indirect for my night scene

So that functionality might be broken then

[distant flower]

Dam your good 😮‍💨

[deft fiber]

Realtime generally cannot simulate bounce lighting or global illumination

[tired inlet]

Using mixed lights will give you the best of both worlds

There is a limit of 4 mixed lights that can overlap at the same time though

So sometimes you can still fake it by having one baked light at low intensity and a higher indirect multiplier and one realtime light in the same place and balancing them out to try and get a good looking result

[fierce oxide]

Anyone else have this issue where if "cast shadows" is turned on you get some ugly shadows on the model?

[shell juniper]

Mess around with your shadow bias settings

[fierce oxide]

yeah thats what i found out

[timber lichen]

hello, I am having a really big issue that i've had for a long time but now it's just really bad

I bake my lighting with my GPU and it'll switch from GPU to CPU

it'll either switch from GPU to CPU after the bake is done or in the middle of it

it is really slowing down my game's release

[deft fiber]

How much VRAM does your GPU have? Baking requires quite a bunch

[timber lichen]

do I check VRam in taskmanager?

[deft fiber]

That should be enough, but if you're using unity editors older than 2021 then the progressive lightmapper may be somewhat unstable

[timber lichen]

i am using 2020

[deft fiber]

There generally is a message in console why the CPU fallback happens but older editors might not have them

[timber lichen]

it's very annoying because it doesn't happen in any other scenes

I usually leave my computer alone while it bakes I could leave it for a hour and forget its baking and it'd all the sudden be baking on CPU

before I can bake it once with my GPU but if i want to rebake I need to restart my unity
now it just doesn't let me do it

[deft fiber]

You could try disabling potentially problematic gameobjects (especially static meshes with custom shaders or with a lot of polygon density) and do smaller test bakes to try to hunt down the issue by process of elimination

Also make sure your GPU drivers are updated

[timber lichen]

that's what I was doing

[deft fiber]

Other than that I might try upgrading to 2021 or 2022 editor to see if that improves it at all
But always do version upgrades with back ups of your project

[timber lichen]

ima try to disable everything, make a empty cube and bake

it could be a lot of stuff as I use shaders a lot

[deft fiber]

Animated shaders will cause issues if you try to bake meshes that have them

[timber lichen]

as long as they aren't static right?

[deft fiber]

Only lightmap static meshes are included in the bake

[timber lichen]

I baked 1 cube that is static and my lighting folder and it's baking twice in a row

so it's most likely a bad mesh then?

or shader

[deft fiber]

Most likely not
To rule out potential weirdness make sure to clear baked light cache before baking again

[timber lichen]

so far it's baking fine the only thing I have disabled is my map

ima try to enable my map see if that does anything

[timber lichen]

its so annoying

I have no clue why

[heavy mulch]

how to fix some black thing in my object when i bake lighting?

[timber lichen]

what does this mean

[timber lichen]

what i do to fix those is just moving 1 vertice

[heavy mulch]

what do you mean?

[timber lichen]

bro

my unity

just

crashed

these were the errors

I have 1TB of ram but not on my CDrive

[timber lichen]

did you make that model in blender?

[heavy mulch]

yes

[timber lichen]

I usually move 1 vertice the smallest change

I am not good at lighting, are you using light probe's?

[heavy mulch]

no

i using point light

[timber lichen]

what is a GI Cache

[burnt pendant]

Good Day all

I have a massive Texel Validity problem and I saw online a possible fix is to enable Double Sided Global Illumination. Which i have and only very slightly improved the problem. May i ask for further advice?

I used pro builder and its cube to make all this

[chilly kettle]

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

[burnt pendant]

i have looked through that, Chapter 15

[chilly kettle]

If you follow it, it should help ^^

[burnt pendant]

okay okay it did help but i did it before and didnt work, i dont know what i did differently

I just added a new material to everything and it was all turning green -_-

Sorry for the stupid post then

[chilly kettle]

😄 good that it works now

[burnt pendant]

And ofcourse, thank you

[verbal mica]

I was seeing artifacts when I baked lighting on a test scene using URP, only to realize that under the Lighting tab > Realtime Global Illumination is checked. Once I disable that, assets appear under baked lightmaps instead of realtime lightmaps and it's all working fine. But I'm trying to understand when that option is even there, since from the doc it says realtime GI is deprecated in URP?

Using Unity 2022.3.5f1

[rocky fox]

What could possibly be the issue with (some) of my walls appears completely unilluminated when baking a lightmap. Some info is all the walls are one object, it's set to static, and my point light is set to "mixed"

[timber lichen]

hey

I found an error that might be causing it

I bake my lighting wait like 5 minutes right as it hits 1 second everything just refresh's and it goes to CPU and rebakes

[timber lichen]

this is really bad, my game is planned to released on the 14th and it's the 12th

I need to bake my lighting but if it's gonna keep switching to CPU then I can't

[chilly kettle]

Show your bake settings

[deft fiber]

The last time I recall you said the bake works when you disable your map mesh, correct?
That implies it may be too big to fit into your vram, either due to complexity (or some problem that causes the baker to get stuck, such as animated shaders)

It may help to show what that mesh looks like, including wireframe and mesh statistics, and what kind of shader it has

Like I suggested previously you could try upgrading a backup of your project to a newer unity editor
New editors, particularly 2022 and 2023 have improved how GPU VRAM is utilized so much bigger scenes can fit into it

[timber lichen]

so what I have is I have 1 mesh that is the entire map, if i were to load another map i would just disable the stuff inside that map

I figured out what map is causing it

right now I am disabling stuff inside of it

it'd be way easier to VC

[timber lichen]

I am about to buy a computer with a 4090

[chilly kettle]

Unity didn’t found a GPU as it’s written there. I think you have to fix this 😅

[chilly kettle]

It could also be possible, that this map is just to big for a 1024px lightmap

I would try to fix the Not found GPU and then increase the max lightmap size to 2048 or 4096

[timber lichen]

it says that but when i start the bake it shows that I am using my GPU

[deft fiber]

Show us the mesh and experiment with the newer editors

If you're for example baking a 1:1 scale model of the earth at 40 texels per unit then no GPU in the world will have enough vram

[timber lichen]

I am not good at lighting sorry

I am testing something

[timber lichen]

so should I make it higher or lower

it's a virtual reality game where you free roam

[deft fiber]

That's not what I suggested

[deft fiber]

Max lightmap size is just for one lightmap, but the lightmapper can make multiple per scene as needed
I don't know what it'll do if one mesh is too big for any lightmap size however, I haven't seen it be able to use multiple lightmaps per mesh

[chilly kettle]

That’s why I said, I would try a bigger lightmap size. I think it will break if the mesh is to big for the 1024.

But not sure

[timber lichen]

I've never had issues with my baking, until I switched to 2020

[deft fiber]

From what?

[timber lichen]

2021

[deft fiber]

why?

[timber lichen]

2021 URP Mess's up the locomotion I am using

I am most likely going to switch

I remade my entire game with a new project I didn't downgrade

[deft fiber]

Well as you recall I've been saying, newer editor versions are much better at handling VRAM with the progressive lightmapper

[timber lichen]

what if I did this

[deft fiber]

What if you tried even one of my suggestions

We can't help you if you don't give relevant info about your scene

[timber lichen]

I changed it to 2048

i have no clue why Not Found GPU is there

its affecting my GPU in task manager so my GPU is there

[burnt pendant]

Good Day everyone,

if you look here, the floor is reflecting the living room ( the blue lights) and not reflecting the yellow lights. The floor is all one big piece through out the house using probuilder to extrude. I put a carpet mesh down to see and it is reflecting the yellow like it should. There is one Reflection probe in each room

Do i have to make the floor one mesh per room to fix this?

[deft fiber]

You might have to
I think HDRP and newer URP had probe blending per-pixel, but BiRP had probe blending per-mesh

[timber lichen]

could someone try to call me?

I can show my screen

I can pay on cashapp

5$ for someone to get this fixed

[burnt pendant]

Hello again, thanks for all the help you have given me

This is related to the Reflection Probe issue,

Do you know anything about Anchor Override in the Porbes section in the Inspector? An idea was given to set the anchor to a new transform, but i have not seen any tutorials on how to do that

[deft fiber]

If you've got per-object probes then the Anchor Override will use the referenced object's transform as the origin for finding nearest probes
Probably not much to tutorialize about it

[burnt pendant]

oh okay,

so not usefuly in this case is it?

[deft fiber]

It might be useful for fine tweaking of the probe influence but you still need to split your rooms into multiple meshes to have more than one probe affect the rooms
Assuming that's really the limitation we're dealing with anyhow

[burnt pendant]

okay cool thank you

[split jetty]

I'm having problems with baking my lighting. I'm new to unity so I'm not quite sure how it works. As you can see in the photo here one of the doors looks as it should (the left one) but the other one is completely dark. It's the same asset so I don't know what could've caused this. Any ideas?

here are my settings

[timber lichen]

I upgraded my unity version to the last version of 2020

so the one before 2021

as of now the baking seems fine

only issue is something is causing the baking process to just go up and never down

so I'm disabling stuff to figure out what

welp

it did switch to CPU

it happened what I enabled my light probes

[tired inlet]

Are both set as static?

[split jetty]

yes! And sorry, I solved the issue. It was caused by overlapping UV's

[tired inlet]

If your other door can't be static because it slides or something you'll have to add light probes

Ah cool 🙂

[thorny goblet]

Why do some objects just completely ignore baking? after baking: https://i.imgur.com/Pn3hs9f.png Before Baking: https://i.imgur.com/V6uVhZb.png

It's getting to the point where i may just resort to avoiding baking shadows and losing a little bit of performance, baking is so annoying.

[deft fiber]

Probably 80% of those cases is because of missing or invalid lightmap UVs

[thorny goblet]

How do i fix this, i have custom walls that i made for my game through blender?

[deft fiber]

You start by diagnosing the problem by checking GI debug views and console for lightmap errors

If that reveals lightmap errors (or other errors like texel invalidity while you're at it) then you can focus on fixing them

[dark grove]

Does anyone know why my shadows are so jank?

This is the light source

and the URP settings

[stable patio]

looks like depth bias problem, lower it until it fits, in too low of a setting can show some shadow clipping

[deft fiber]

@dark grove This problem is consistent with a too high shadow normal bias
However the 0 we're seeing in your quality settings isn't consistent with what we're seeing in the scene

I've noticed some similar weird inconsistencies between per-light bias settings and URP asset bias settings
I'd verify that the URP asset you're editing is also the one that's active from quality settings
But most importantly try giving custom bias settings for your light, such as 1 depth and 0 normal and see if it changes

[dark grove]

I managed to massively improve it, the range on my spotlight was 100 which seems too high

lowering it to 20 or so and adjusting the near plane to 0.1 made a big difference

I wanted the higher range since it's a flashlight and it wasn't really lighting up the night scene outside at lower values

[spark python]

point light affects particles only on 1 side(rotation doesn't matter), what may be causing the issue?(using URP)

[tired inlet]

Do the particles have shadow casting enabled in the renderer?

[blissful ether]

Does anyone have much experience with Bakery?

Is it a lot better than the default lightmapper in terms of speed / quality?

[spark python]

no

[deft fiber]

It's a bit hard to see what exactly is going on
Are your particles using normal maps? Sometimes normal map issues cause misplaced shadowing
Regardless of that if you're using billboard particles they are technically quads that face the camera, so any light behind them cannot illuminate themat least not with the default lit shader

[blissful ether]

Going to pitch this in here as it seems to be a lighting issue. I have a lit shader that appears fine in the scene view, but when the game runs receives no light from the (sole) directional light or the environment at all, and appears black as a result

I'm using a Mixed directional light, and I would've thought it would light my water, which isn't marked as static.

Scene editing ^

Same scene view when game is running ^, also how it looks ingame

The game camera view also renders it properly when the game isn't running.

I will mention it works with Realtime directional lights, but I don't want to use that for quality reasons. The realtime lighting also doesn't appear to shadow the water.

[plush valley]

Global Illumination. Preparing Bake is stuck at 6% and the remaining time just keeps on increasing

[blissful ether]

Cancel the bake and retry

[brittle briar]

I've been a big fan of the command prompt aesthetic and how bright and contrast-y it is so I took a screenshot of a bunch of hastags and tried to apply them to objects in my game as materials

but no matter what I try i'm not able to to get it to look bright enough

this is what it currently looks like

but I really want it to look super punchy bright and super high contrast, how could I do that?

[oak dawn]

yeah that's probably because there's lighting going on here, you need to make sure the material is unlit and with a white color

also the command prompt for me isn't even white, it's just a bit brighter than your image

also one last thing i forgot to mention, is you might want to switch color spaces (gamma or linear)

[brittle briar]

yea you were spot on here!! upping the contrast elsewhere and changing the material shader did the job

thanks!

[oak dawn]

no problem, glad you figured that out

[near gorge]

my middle barriers and road have light lines on contact points, the road is procedurally generated and cut into few meshes. it only happens with baked lights, what should i change in settings?

[chilly kettle]

The easiest way to mitigate seams is to combine meshes in a 3D modeling package. But you said, its generated. Mesh.CombineMeshes method combines meshes into one, achieving the same result as merging them in a DCC package.

You could also change them, to not be baked. It would be enough if they are lit by lightprobes i think.

you have something weird here too

OR if thats not what you want: Try using meshes to hide seams between objects. This is a commonly used technique in game development.

like a metal part there, that hides the seams between the barriers

[near gorge]

realtime lights are great and it is not happening but i've heard that baked ones are better for weaker pc. i can connect everyting into one mesh but is it going to be performance friendly? the road has a few kilometers. i will try to play with lightning settings and bake something better. thank you tho. sing meshes to hide seams between objects sounds interesting and i will do it but not on the highway

[near gorge]

is it possible to connect it, bake one huge object and then cut again to avoid rendering the whole highway at once?

[chilly kettle]

Lightprobes are not realtime.
You bake the probes and your Barriers will take their lighting informations from them.
Its overkill to bake your barriers, because they are so simple and you have no real benefit of baking them.
I guess you are driving quite fast and will not see any baked details in 90% of the time?
AND, you are using a low poly style that will fit a simple lighting approach.

[blissful ether]

I think Bakery (asset) has some sort of mitigation for this issue

[deft fiber]

Having to blend lightmaps of adjacent pieces of modular geometry is tricky
Here's how they did it TES: Scrolls https://www.youtube.com/watch?v=KbxiGH6igBk

[blissful ether]

Is there a way to have a light only effect realtime shadows (and no lighting)? I need a way to shadow my dynamic objects from static geometry, a lot of my game is indoors with sharp shadows

And having objects move around but receive no shadows isn't very immersive in VR

I know source(2) can use baked shadows for static geometry and realtime shadows for moving objects

The problem with just having 2 directional lights one baked one realtime is that areas are twice as bright as they should ber

[deft fiber]

Unity has this also in the form of mixed mode lighting
You can use these workarounds here:
https://support.unity.com/hc/en-us/articles/207820473-Mixed-mode-lighting-my-baked-objects-are-not-casting-shadows-on-RealTime-objects
Or shadowmask lighting if you want it perfect
https://docs.unity3d.com/Manual/LightMode-Mixed-Shadowmask.html

[blissful ether]

Seems like shadowmask is the right answe

Duplicating every mesh shadows only seems like it would tank performance pretty quick

[deft fiber]

Realtime shadows are technically cast by "duplicated" meshes

[blissful ether]

Why doesn't the article include shadowmask stuff?

[blissful ether]

In the shadowmask thing also?

Sounds a little icky, but I'm assuming there's some optimisations under the hood

[deft fiber]

Shadow casting lights in general are practically cameras that render each shadow mesh anew for the shadowmap

Baked lights don't do any of that since the shadows are just painted onto the lightmap

Mixed lights do both, in different ways depending on the mode

[blissful ether]

Sounds promising, and is easy to cut down for weaker hardware

I do wish the API was a little more extensive

[deft fiber]

Article is probably older than shadowmasking

[blissful ether]

(nvm, found it)

[deft fiber]

We always do
But the light modes and shadowmasks still have a lot of power out of the box, as long as you can wrap your head around them

With distance shadowmask you basically get the best possible shadows and lights from baked and realtime both, but it's got the biggest cost

[blissful ether]

Yeah honestly it looks great.

I do wonder if it could be optimised to just cover the edge cases of static geometry, but it works what I want completely now.

Idk if this belongs more in #archived-shaders , but is there a reason my plane isn't receiving any realtime shadows?

I know vertex displacement can make that tricky, but it'd be nice to know if I'm missing something

I'm using the lit shader graph

[deft fiber]

Can't say I recall any particular problem with it

If you've enabled receive shadows then it should just work, I think, regardless of vertex displacement

[dusty agate]

Hello, I have a big light problem. No matter what settings I make, Point and Spot Lights don't show up for me. I also tried different render pipelines and new projects. Is this or similar problems known?

[blissful ether]

Could be a lot of things, could you show us a scene you've set up?

What lighting settings are you using?

[blissful ether]

Yeah I thought this too, but no luck so far.

[blissful ether]

My shader settings

Plane settings

[blissful ether]

Assuming that seam in the floor is a seperate mesh?

Can you show t he settings for the car mesh? Or that floor

I'm assuming contribute GI could be unchecked

or receive shadows is off in material

Okay 🙂

Seems fine, do they receive realtime light properly?

[deft fiber]

looks like lightmap UV scale / padding / seam issues

[deft fiber]

could show what it looks like when you place a light next to a default cube in a new project

[drowsy talon]

I'd check how the car looks on the lightmap. If it is indeed lightmapped, you should be able to open the lightmap preview window from the its inspector.

Those settings are a bit on the low end 😛

Scale in lightmap of the renderer, lightmap resolution, lightmap size and lightmap padding can all have an effect on something like this

But inspecting the object on the lightmap layout should give you a better idea of what is going wrong

[blissful ether]

It may be worth trying those assets in another project, and seeing if the lights have similar issues

[deft fiber]

with low resolution padding pixels will consume relatively much more space, and with complex meshes they may consume all of it

if lightmap resolution is lower than minimum resolution defined in lightmap uv settings there will be problems

max lightmap size should be bigger like 1024 or 2048
It only forces splitting into multiple textures, which becomes a problem if they are too small

[spark python]

no normal maps and the lighting is constant no matter the camera rotations, although I fixed it by disabling custom vertex streams, not sure why it was happenning

[cold ginkgo]

Hello! First time asking a question. I'm working on an unity project that is serving as visual data gathering experiment for university. My issue is that my professor has provided me with models that he generated with specific camouflage textures. Due to the nature of how these were made it is important that they do not have any lighting applied to them from the scene and appear with their intended colours. I have created a new layer called unlit and set my light culling mask to exclude the unlit layer. However this make them too dark. I have attempted to search for a solution online but I couldn't find any. My best attempt was to apply an emission however this also affect the colour making them appear too light. Any advice would be most welcome! First picture is in blender, colour as intended, Second is unlit, Third is unlit + Emission with the setting in the forth picture

[deft fiber]

try Unlit shader
the shader in your screenshot is Lit

[cold ginkgo]

Unlit seems to just make this unfortunately

[dusty agate]

It was my notebook. The energy saving setting did not show the light sources. Thank you for your assistance @blissful ether @deft fiber

[drowsy talon]

Can you show the importer preview for the albedo texture? Does the texture look correct after import?

[cold ginkgo]

Sorry I am very inexperienced with models how would I see this?

[drowsy talon]

Find the texture in the project browser / file view, click on it, at the bottom of the inspector there should be a preview of it

You should just be able to click on the little thumbnail next to "Base Map" on the material inspector

On your last screenshot

To navigate to it

[cold ginkgo]

The one at the bottom here? Thanks for the help

It dose look like its not acting right there too

[drowsy talon]

that's the model importer you are looking at

See what I do on this gif? First use the material inspector to find the albedo (color) texture, then press on it to view the texture inspector

[cold ginkgo]

Ow here? I dont think I have exactly the same options as you for some reason

[drowsy talon]

Oh wow, that's tiny 😛

Can you send me the texture?

DM is fine if you don't want to do it in here

[cold ginkgo]

Sure thing

that should be everything for that ghost

I sadly have like over a 100 I need to fix

[drowsy talon]

On the texture inspector I showed you how to find, try choosing these settings:

woops wrong

like that

and then hit apply

[cold ginkgo]

Thats looking a little better but still not quite right

[deft fiber]

@cold ginkgo Set Compression to "none" also

It may help to disable "generate mip maps" with a texture that small

[drowsy talon]

change this to None

instead of Nearest

the texture is 10x10, I didn't realize

[cold ginkgo]

I think that may have done it

[drowsy talon]

Nice. It's on by default because usually you want your textures to have sizes that are powers of 2

But for a texture so small, which is essentially being used as a palette, it just blurs out the palette and smushes the colors together

The UVs are all on the centroid of 1 of 4 differently colored pixels, so I was confused changing the filter mode had an effect at all. Makes sense though, since the actual texture wasn't being sampled, but a blurred version of it

[cold ginkgo]

Thats great thank you so so much for your help @drowsy talon & @deft fiber !

[cold ginkgo]

I dont know why he had mad it so tiny

[drowsy talon]

For a texture that is being used as a palette, it makes sense to have a tiny texture. The stranger part is that it isn't a power of 2 size

That is very much the norm for these kinds of textures

[cold ginkgo]

I think he generated them in matlab so that might be why

[cold ginkgo]

I just applied everything to the other types of camouflage too and it all works. You have saved my master project thanks again!

[craggy ember]

Hey, map map in Unity is modular and i have problem with lightning on wall joints.
Do you know how to fix it?

Is there a way to fix this?

[chilly kettle]

You can try Stitch Seams

If this doesnt help, you can try disable filtering in the bake settings.

If disabling filtering does not solve the issue, try increasing Lightmap Padding value. When working with modular meshes, each mesh has its own UV atlas. Lightmap Padding property allows you to change the distance between UV atlases – but not between UV shells within the atlas - to prevent leaking.

[craggy ember]

Thanks for the answer, but none of this worked for me.

[chilly kettle]

Show me the bake settings pls ^^

[chilly kettle]

how many of these modular pieces do you have?

[craggy ember]

quite a lot

16 walls

[chilly kettle]

im wondering why your lightmap is only 512x512 px

[craggy ember]

I wanted to do a faster generation to see the preview result

[chilly kettle]

i guess your problem maybe is, that its quite dark there.
one more think you can try, is adjusting the "Scale in Lightmap" in the MeshRenderer of your walls

so they get more space

[craggy ember]

to be precise, my settings looked like this

I've seen games where whole maps were built from modules, so there's clearly something wrong with me

[craggy ember]

yes, it's horror map

[chilly kettle]

Your problem is sadly a normal thing when dealing with modular pieces

often seams will be hidden by placing other geometry over them, but thats not a thing in your case

[craggy ember]

But still, are there any ways to fix this problem?

[chilly kettle]

watch chapter 10 here:
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/#post-8467097

[craggy ember]

ok, thanks for help

[left cedar]

Is there a way to update the env reflection to always be in sync with the sky box gradient? (I'm changing the gradient colors during gameplay and would like the reflections to keep up with this)

[gritty fox]

Tried a few methods now but not getting anywhere than what I currently have. Can I get some advice on a better way to make the lighting better and actually look like its coming from the ceiling lights?
Of course with the point lights being so close to the ceiling the lights look odd. Ive tried spotlights but the ceiling doesnt become lit. Preferably need a way for mixed lighting+shadows.

[timber lichen]

hello, how to make the box going dark when going under the table

[deft fiber]

Unity already has an integrated method for this, which is the Source: Skybox together with
https://docs.unity3d.com/ScriptReference/DynamicGI.UpdateEnvironment.html
This should update both the spherical harmonics representation of ambient lighting as well as the reflection cubemap texture

Otherwise you'll need to be using your own math or pre-existing colors and cubemaps using the methods in
https://docs.unity3d.com/ScriptReference/RenderSettings.html

[deft fiber]

You need light probes in each point in space where the lighting has changed, such as below the table in shade and right around the shadow
Your probes should not be overlapping with the ground or other geometry like they are now

[slim rose]

Hey guys, I am new to unity lighting, I have tried to bake a scean all the objects are set to the static and generative lightmap check box is true. But still certain area are totally black and others are partially black why is that and how can I fix it.

[deft fiber]

Check lightmap overlap and texel validity views for potential issues

[light furnace]

right so i'm making a scp-087(infinite staircase) game and i'm facing a issue; i'm using HDRP lighting and my staircase is automatically generated when the game starts but i'm facing a issue of the game looking like this and i have no idea why. i'm new to HDRP in general so any help would be appriciated

[limpid notch]

Hi we have a problem with the leaves when i go forward the shadows behave strangely when we turn off the shadows everything is ok it only happens in the build in the editor its ok

[drowsy talon]

Are the trees using LODs? Also, how are the being lit? Baked shadows, or realtime lighting?

[limpid notch]

realtime lighting, yes they have lods

[drowsy talon]

If you disable the lodding, do you still see the issue?

You can crank the lod bias in project settings as a quick check

[limpid notch]

I see this only in build in editor problem doesn't exist

when I press play this works normally, I don't know why in build it act like this :/

[novel meadow]

Try disabling the denoiser

[meager basalt]

does anyone know why the shadows are returning as a random straight line in a build but correctly in the game view

[gritty fox]

Hi would like some advice on improving my lighting. I've tried point lights only vs spot light + baked emissive materials

this is with point lights only

and this is with spotlights+baked emissive materials

I feel like I should just stick with the point lights, but the lights on the ceiling look very odd because theyre positioned right on the ceiling lights for a more realistic shadows look.

any tips for this scene?

[zealous trout]

Can anyone help me fix why my lightmaps are bugging out like this?

[little condor]

Have you generated the lightmap for that model?

[zealous trout]

ohhh that makes sense, so no i have not yet

[iron dome]

Create your own uv maps for lightmap is an option

rather than letting unity auto generate it

[deft fiber]

I recommend letting unity generate it first

The problem usually is that there's no lightmap UV map at all

[mild quiver]

hey there, I'm trying to understand APV, and I was under the impression that the probes should adapt to the geometry, but instead they're evenly spaced throughout the scene. I checked every setting. everything is set to static, and when I switch to "Validity" in probe visualization it correctly identifies the probes that go inside of the geometry. dilation and virtual offset are both enabled with default settings. what am I missing?

[tired inlet]

Is there any reason mixed lighting in Baked Indirect mode does not bake indirect lighting to the lightmap, or that same indirect lighting in to the light probes? It will do if the lights are set to baked instead...

[tired inlet]

Baked indirect is purple/pink?

Lights are slightly orange on white walls

It makes no sense for the indirect to be this color I am losing my mind

[deft fiber]

That assessment seems right
Are your walls using a custom shader by chance?

[tired inlet]

No, just HDRP lit

I am using the baked indirect mode as it is required for my project

Maybe that gives a clue*

[deft fiber]

Required in what way?

[tired inlet]

We have a dense night time interior scene where we want to take advantage of mixed lighting and realtime shadows

Baked indirect seems to reduce our performance draw over shadowmask and removes the 4 mixed light overlap limit as it does not create the shadow masks for the baked shadows

But even a light in just baked mode bakes pink now

[deft fiber]

Ah, so not a technical limitation from using a weird version or something

I haven't seen this kind of issue before
In this situation I'd do some test bakes in a blank new scene with default cubes to confirm that baking does work as expected in a barebones situation

If it doesn't work as expected in a blank scene with some cubes, that means something is fundamentally wrong in a way that doesn't implicate your main scene, its meshes, lights or lighting settings

[tired inlet]

Yeah I'll give that a shot, currently trying a bake with CPU baker instead of GPU to rule out some of that "preview" buggyness

[tired inlet]

Okay yeah it works in an empty scene

Hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

[deft fiber]

So that means it's likely the mesh, lighting settings, lights or something else in the main scene

[tired inlet]

Yeah I'll start narrowing it down

Thanks for the brain picking

[deft fiber]

The process of elimination

[tired inlet]

I love these unity curve balls

I have been working with it for over 10 years and it's never a dull moment

[tired inlet]

So it worked when I created a new lighting settings asset in my main scene

But then on my second bake everything was pink again

This is some spooky shiz

If I then create another new lighting settings asset it works again

[deft fiber]

Any effect if you clear baked lighting cache between bakes?

[tired inlet]

I'll check that too

[deft fiber]

Which editor and HDRP versions are you using out of curiosity

[tired inlet]

2022.3.5f1 and 14.0.8

[deft fiber]

I might try patching to 2022.3.7f1
.4f1 and .5f1 in particular were plagued by many issues, though the whole 2022.3. is the least functional LTS I've ever seen

[tired inlet]

Unfortunately 2022.3.7f1 currently breaks a cloth plug in we use for character clothing

Unity is on a roll for sure 😛

If all else fails I could try updating to .7f1 to see if the issue is localized to this version

[deft fiber]

Patching should be pretty riskless
Could also try downgrading a backup to 2021.3. or upgrading one to 2023.1.

[tired inlet]

Yeah but we can't use it for production currently as it seems to break our cloth physics

But I'll still try and see

Thanks for all the brainstorming

[burnt brook]

Should i use box projection on reflection probes, or should i just place multiple reflection probes where i need them

[deft fiber]

Whichever looks better
Box projection lets you have parallax on the reflections but if the area isn't box shaped the parallax may look worse than better

[burnt brook]

Ok, all i want to know is: can i place as many baked reflection probes as i want and not have it impact performance

Because i get wierd issues when using big reflection probes in big rooms

[deft fiber]

They're not expensive but not free either, especially if you're blending between multiple

Maybe the "weird issues" are the root of the problem

[burnt brook]

I don't think so, they appear on multiple versions and even after i reset my entire pc

[deft fiber]

Any hints what they look like?

Anye details you can provide can help

[burnt brook]

https://cdn.discordapp.com/attachments/790622728712880209/1140000620602986576/d5979417de0854adb49865a0c4e7c2d3.png

[burnt brook]

Gets worse with lower resolution + only happens with box projection

[deft fiber]

You mentioned big rooms and big reflection probes
Can you show the probe settings?

[burnt brook]

Also it gets worse with higher intensity

[deft fiber]

Nothing looks unusual here
My guess is it might be some weird hardware incompatibility

[burnt brook]

They appear on my pc and my quest 2

They are worse on quest, probably bacause of the lower resolution

Here's a Video of them on my pc

It's hard to spot them, but on quest 2 (mobile vr headset) they are very apparent

[deft fiber]

What shaders are on the geometry?

[burnt brook]

Universal Render Pipeline/Lit

[deft fiber]

Nothing suspicious there either
I'm out of ideas

[burnt brook]

I am too, my current strategy is to disable box projection and just add a custom reflection probe for these speheres

But i don't know how performance heavy that is

[deft fiber]

What do you mean by "custom reflection probe"

[burnt brook]

A reflection probe just for these spheres, so i have a global reflection probe for interactables and stuff like that and then a custom reflection probe for every area that has static highly reflective geometry like these spheres.

So that they look accurate rotation wise

That the specular highlights face the right direction thats what i mean

[deft fiber]

I don't exactly
Reflection probes are independent of any rotation

You're supposed to have one probe per room or area
All objects within it will get their reflections from it

The lit shader will do all the rotation and position calculations for reflection relative to the probe

[burnt brook]

No thats now what i mean. Not relative to the probe but relative to the lights

[deft fiber]

Are you talking about realtime probes or baked probes?

[deft fiber]

Either I'm misunderstanding how your reflections are set up or you're misunderstanding what reflection probes do

[burnt brook]

I tried my best

Box Projection makes it so that the reflection is from a point in 3d space in that box

[deft fiber]

I know what box projection does but assuming you can't use them I'm not sure how a "custom" reflection probe will solve the problem or what it is

With probes custom usually refers to a custom provided cubemap texture instead of a baked one

But it doesn't have the parallax effect you seek

[burnt brook]

Its just a reflection probe that near the spheres so that their highlights face the actual lights in the room

[burnt brook]

I meant to reply to this

[deft fiber]

I see! Having multiple local probes to blend between has a cost but probably not prohibitive

[burnt brook]

Yeah its better then having these wierd issues or terrible looking reflections

@deft fiber here i enable the "custom reflection probe" to make the reflection look more realistic

[deft fiber]

Still by "custom" you mean "local", I assume?

A downside might be a jarring transition at the bounds between probes

[burnt brook]

I guess that what i mean, its just a reflection probe, i think you can't change between global and local. But this one is in another bigger reflection Probe

[deft fiber]

Basically so

[fathom mountain]

Hello, have had an issue understanding lighting for some time and I've got an issue getting it to work properly for me and I'm out of ideas. Any help would be greatly appreciated. All of these rooms are set to Two sided shadow casts and recieve shadows on. Yet I get these strange lights, stripes, shapes etc that don't follow the rest of the "darkness" so to say.

[chilly kettle]

What strange Stripes?

[fathom mountain]

Let me highlight them.

[fathom mountain]

Some areas get just pitch black, and it doesn't really follow a pattern to why it does so. Been scratching my head for the past month trying to figure this out

Here's a different angle, again with random squares of just darkness for some reason

[chilly kettle]

Okay. a few questions.

• Did you bake your light?
• What Pipeline are you on?
• Did you do the models & materials by yourself?

[fathom mountain]

It is baked.
Built-in
I did not do the models or materials.

[chilly kettle]

Can you show me the baked lightmap view?

[tired inlet]

I thought you might like an update, it seems to be localized to the GPU baker only

CPU is baking with no issues

[deft fiber]

The GPU lightmapper is known to be more prone to glitches but I find they're pretty rare still
I'd make sure GPU drivers are updated

[tired inlet]

RTX 4090 and fully updated yeah

I don't know I've been using GPU baking for a long time too, it's only after switching to HDRP our project seemed to be getting issues with light baking

[deft fiber]

Weird one

[dark grove]

Does anyone know what might be causing these shadows to change when you're far enough away from the light? Using URP

[deft fiber]

Looks like pixel light limit per object

[dark grove]

That's what it was, I was changing it on the wrong URP asset lol

thanks

[gritty fox]

anyone able to advise on this?

[tired inlet]

Depending on the pipeline area lights are also an option

[gritty fox]

HDRP

[tired inlet]

Then yeah you could try that as well, with an area light you more or less get the rectangular shape light

[gritty fox]

was gonna try them before but they were a bit odd ish to work with

[tired inlet]

If you don't have more than 4 overlapping you can set them to mixed for some nice indirect bounce lighting and shadows

[gritty fox]

ah okay

ill mess about with them

shadows arent very good and the area lights dont do anything for the ceiling

i think my best bet will probably be to make the lights/ceiling larger and stay on the point lights

[polar wadi]

Hello, is it possible to generate lightmaps at runtime? My scene actually loads custom asset from the StreamingAssets folder using Trilib so I don't have any lightmaps prepared for the asset. Moreover, the time of the day is dynamic so the lightmap would need to change all the time.

What's the best solution for this? Using URP

[blazing hinge]

Can I get one single light source to affect multiple layers of a 2D project? I have a light source that must only affect the background layer and one that must affect every layer of the foreground (like solid, transparent, decorations and so on...) is there a way for the second one to affect all those layers together?

[night shell]

not really such a thing as generating lightmaps at runtime, that is what realtime lighting is for

the closest solution you'd find within unity would be using enlighten realtime GI but that requires precomputation of the scene

not sure exactly if that would suit your case although I would assume not

[deft fiber]

Light probes and APVs can light up any mesh in their range, even new ones unlike lightmapping, though they can't be re-baked at runtime either

Blending between lighting scenarios is probably technically possible for light probes but not natively supported, for APVs it's supported now in HDRP and later in URP

[proper hemlock]

Hey guys
I have a normal sized map. Not that big with not too many details. But I have large rocks made into cliffs. And to reduce batch counts I merged those rocks. But when I bake lights, all the merged objects have patches of white spots on them

[chilly kettle]

You should provide us with some screenshots, because "white spots" can be everything ^^

[chilly kettle]

Did you bake the light after merging the mesh again?

[proper hemlock]

After merge

Yes baked the lights just now

And baking lights on this setting took me 5 hours 👀

Sorry I can't take a SS. I'm on companies PC and I don't want to use social media on public device

[polar wadi]

Got it. That would be a solution but quite complicated to implement indeed. I found an asset online, Lumina, which seems to do what I need. I'll give it a shot. Thanks for your help!

[rich knot]

why half of my map is black?

[marsh matrix]

Hi! Lighting noob here. I'm making a game where most of my objects are static. So I was thinking of baking all my lights. But since the player can place some objects in runtime, I realize these wont be getting any light/shading. So I was thinking that maybe there is a way of using baked lights, and only using realtime lights for the objects that the player can place? if so, how can I make sure that the realtime lighting only applies to the dynamicly placed objects? And is this even more performant than ONLY using realtime lighting for everything?

[chilly kettle]

Hi.
You can use "Light Probes" to apply the baked light onto dynamic objects. (Performant)
YOu can also use Realtime lights and add a "culling mask". Then you only have to apply a Layer to your Dynamic Objects and uncheck this layer in the culling mask. So they wont get lit by the light.

[marsh matrix]

Thanks!

[errant plank]

when I baked my lighting, my lightmap was dark, is there any way to brighten it up? pls help

[exotic knoll]

Hello! I'm blind and need a second pair of eyes. I'm working on a game that's in Unity but uses a custom voxel lighting system. That system was really cool when we first implemented it, but the person who wrote it isn't on our team anymore and nobody (including myself) knows how to work with it and improve it. It's hard on the GPU, it doesn't look particularly great compared to Unity's own lighting system, and we've decided as a team to replace it. But it has an effect that I don't know how to describe but that we want to keep. Wondering if someone could tell me what the effect's called and if it's possible to create it in-engine, or otherwise if someone can point me in the right direction.

Posting a screenshot of some lights in the game

I set this scene up myself in the game, there's two lights, one of them is white and the other has an RGB rainbow breathing effect on it

I wanna recreate that sorta fog circle around both the lights

I....don't know enough about lighting to know what that's called

[night shell]

almost looks like an effect called "bloom" but since one of the lights are offscreen but still has a circle around it it looks like an effect called "volumetric lighting"

[exotic knoll]

Yeah I've since looked in our code

it's volumetric lighting

[night shell]

doesn't look too good though it almost looks faked

[exotic knoll]

Not sure how I'd recreate that with Unity's built-in lighting though

[exotic knoll]

It's actually based on the lighting system from LittleBigPlanet 2

but yeah

it's really bad quality, we massively decreased the quality for performance reasons and uhhhh...it's still really hard on the GPU which is why we're replacing it

plus the game's moving from an LBP-style layer system to fully 3D physics/movement, so it makes sense to have 3D lighting as well

[night shell]

do you have any references videos?

[exotic knoll]

what if I just .... go into LBP and take a screenshot of a light in that

[night shell]

go for it

looking for what you describe on google but not really seeing results for it

[exotic knoll]

Sorry about the cut-off other light btw

That image was from a test level on Steam Workshop and the camera wasn't at a great spot when I published

[night shell]

found some articles, so it looks like its an actual volumetric lighting implementation they had in LBP2

which yep, I was right with identifying it, although in your screenshot it doesn't look quite

but to answer your question

yes its possible to create within unity

as a matter of fact there are various solutions that exist that you can browse

some paid, some free, not sure what criteria you are using for your project

i.e. if your using the built in pipeline, URP, or HDRP

[exotic knoll]

We're using the built-in pipeline because of the custom lighting system

and a decal system

anyway

just so we're on the same page

I wanna recreate that fog effect

the light on the left has 40% fog in the tweaks menu

the one on the right is maxed out

[night shell]

https://github.com/SlightlyMad/VolumetricLights

[exotic knoll]

Think this is the exact same repo I got linked to by another team member

Says it has issues with translucent geometry though

Since we do have translucent glass materials in the game though, that's probably not ideal

[night shell]

https://assetstore.unity.com/packages/vfx/shaders/volumetric-lights-2-234539

[exotic knoll]

Though idk how LBP handles that with its system

[night shell]

https://assetstore.unity.com/packages/tools/particles-effects/aura-2-volumetric-lighting-fog-137148

[exotic knoll]

hmmm it's even on sale

and doesn't look to be per-seat licensed

which is beneficial

[night shell]

not sure how critical it is for you to have a system that handles transparent surfaces as well but I would give the free version a shot first from github if possible

I haven't seen a system though with that specific edge case regarding transparencies for unity though. It's certainly possible but I just haven't seen it implemented

but even if those don't work, if you can find someone or are willing to do the work the unity 5 implementation should be a pretty good starting point for making such a system

[exotic knoll]

Yeah I....I don't know how to use shaders and have no interest in learning 'em

so

I'd rather

use something existing

Anyway, this is helpful

[night shell]

well in that case yeah I saw a couple of asset solutions you could check out on the asset store you could probably try

[exotic knoll]

The more the marrier tbh

As long as they're not per-seat, I can probably convince the project lead to buy 'em

[deft fiber]

Since the glow cuts off at the ground I don't think it's volumetrics
It resembles the "halo" feature of lights the built-in render pipeline has

A halo is basically a billboard sprite that appears on the light when scene fog is enabled

[polar wadi]

Hello, could anybody tell me why my HDRP directional light have no volumetric while my spotlight top has it ? I've enabled the volumetric on both lights and in the settings so I'm not sure what I'm missing.

Increasing the multiplier of the directional light does appear to increase the volume outside of the window but it doesn't pass through it appears ?

[polar wadi]

OK, I found out it was the asset Enviro I use in the scene which was overriding some stuff... Nevermind my question :x

[exotic knoll]

The fact it cut off at the ground was a limitation of the system and we don't actually want that anymore

[deft fiber]

The cutoff can be fixed even when using billboard sprites

[exotic knoll]

Still though we actually do want volumetrics.

[deft fiber]

Understandable!

If you need to fix billboard cutoff in some other situation, "soft particles" will help
They blend the color based on scene depth and additionally move the billboard vertices towards camera

[exotic knoll]

Since the latest commit is several years old, I decided to fork this and turn it into a Unity package

at https://github.com/acidiclight/VolumetricLights

I'm sure there's more work to be done

but it works fine in Legacy RP

and it's literally dead simple to add to a game

[polar wadi]

Hello, I'm having trouble getting SSGI to work in my HDRP project

I've added the SSGI volume, enabled SSGI in the RP settings but the room is still dark. Enabling SSGI ON/OFF makes absolutely no difference.

Shouldn't it at least make the room slightly brighter?? Am I missing an option somewhere?

Changing light levels do nothing either

I made sure it's enabled in the quality settings too

In the global settings too

[polar wadi]

Ok after playing around with the volumes, it appears the indirect intensity volume set to 0 was the problem. Disabling it fixed my issue.

[cursive lodge]

Hey I have a map with 12.000 Models and just one directional light
my max bounces are 2 and lightmap resolution 20 max lightmap size 515, lightmap compression normal quality. Shadow Render Distance 1000.
rest is default on Progressive GPU with a RTX 3090.
How long should it roughly take? I says 18 hours for me and google said that many bakes only take like 30minutes.

[deft fiber]

12 thousand models? I don't really doubt that time estimate

[cursive lodge]

halfing lightmap resolution made it 50 minutes

[deft fiber]

What are the models like exactly, out of curiosity

Small or high detail meshes not benefit from lightmaps or lightmap poorly, for those cases they can be set to receive lighting from light probes

[cursive lodge]

mostly lots of low poly tree instances

[deft fiber]

It might work fine in your case but forests often rely on LOD culling to be performant, which isn't easily compatible with baked lightmapping

Huge wilderness areas in general often are optimized by dividing them into chunks of data that are streamed in as the player moves forward
But worry about that only if performance or load times become a problem in your case

[cursive lodge]

In my case i will see the entire map at once. Im not really a game dev so i just hope it works. for this project 😄
Currently the project runs at 115 fps.

[trim citrus]

Hi ppl.

I'm trying to set up an emission material and it's not working how is an emission material set up? I'm literally asigning the color I want (no albedo), checking the emission emission, setting it to Realtime, and setting the HDR to the emission color I want with an intensity higher than 0. Nothing emits or at least nothing receives the liget from any object I've tried asigning the various test materials to.

[oak dawn]

i think you either need to setup some realtime Global Illumination, or set the emission to Baked and bake the lighting.

[trim citrus]

can't bake, objects b moving

[oak dawn]

then either add a point-light inside your emissive object or get some realtime global illumination

[deft fiber]

Depends what you mean by "light"
You need post processing bloom if you want it to appear glowy

[trim citrus]

that would solve my test object's problem, but my goal is to add this to a line renderer

[oak dawn]

then you either should add bloom to make it seem like it's glowing (it won't physically though) or get yourself some realtime GI solution

[trim citrus]

but that's thoretically built in with emission material no?

[oak dawn]

and with realtime GI it really depends on what render pipeline you're using and etc. since afaik built in has a sort of semi baked (it works in realtime though) and realtime GI system, and hdrp has a fully realtime one

[deft fiber]

As Rainys said if you want true light emission you need to bake the lighting, or use ray tracing or path tracing

[oak dawn]

nope

[oak dawn]

if you're using built in RP you could also check out assets like SEGI but in my testing they looked and performed awful, but i think you need to try it yourself.

[deft fiber]

The "realtime GI" of Enlighten only supports moving punctual light sources, emissive materials can change color but they can't move
HDRP has no true realtime GI system aside from that either unless you count ray traced SSGI and path tracing

Approximating the glow with realtime lights is not a bad option
You can have a huge number of shadowless short range point lights if using deferred or forward+ rendering paths, and HDRP supports realtime area lights which can be stretched to long thin lines

[trim citrus]

ah alright, I'll look into it, thanks!

[sterile cedar]

Was redirected here

I don't get how the lights are so janky.

This light is at 1.07 intensity

This is 1.08

If I scale the model up, shadows also stop being cast.

[deft fiber]

Is that the only light you have in your scene? Which render pipeline and Unity version are you using for your project?

And how much are you scaling it up

[sly talon]

hi, i'm trying to use point light but its not working in 2d urp, 3d urp or just normal 2d/3d

[deft fiber]

2D URP must use 2D lights and Lit Sprite shaders, none of which are cross-compatible with 3D URP's lights or Lit shaders

[sly talon]

nono, its just that my point lights are not working in any projects

[deft fiber]

So, to confirm you are trying to use 3D point lights on 3D meshes that have the Lit shader?
Did it use to work before? Any difference between scene and game window? Which Unity version?

Any screenshots or clues that we don't have to guess could help

[sterile cedar]

Unity ver is 2022.3.2f1, and it's not the only light but it's the only light in this area

Oh, it turns out it was actually too close to another light that had obscenely high range

Moving it out of the way fixes that

[deft fiber]

Sounds like light limit per object issue
URP has strict pretty strict limitations on how many lights can affect an object so it's best you keep ranges as low as possible

[sterile cedar]

Thank you!

[cyan mural]

I'm wondering... say you're making a 3D game that heavily makes usage out of a pixellated artstyle. What are some good approaches to rendering shadows within that sort of environment?

In a way that feels complimentary, anyway

I'm mostly just brainstorming, of course. I'm working on a 2.5D shooter, along the lines of stuff like Doom or recent stuff like Cultic, Project Warlock, Boltgun, etc.

And I'm just trying to pin down the artistic direction I'm going for, including the lighting

[deft fiber]

Depends what "pixelation" means exactly
If you specifially mean that characters are billboard sprites then there really isn't a "good" way to get 'accurate' shadows from characters, in my opinion

Project Warlock uses blob shadows
That's the best compromise you probably should aim for

[oak dawn]

well, if you're going for a Doom look you would need some sector lighting, if you're going for Quake you would need very low resolution soft shadows, but of course Dusk uses unity's baked lighting which also has GI which i believe the old Quake's didn't have, oh and about the characters, Quake 3 uses blob shadows and Quake 2 uses planar projection shadows (there are a lot of assets implementing that)

[polar wadi]

Could anybody tell me why my volumetric directional light does not show rays through the window? I can clearly see the volume outside but it doesn't seem to passe through the window...