archived-lighting

[graceful shoal]

After alot of testing, errors and re-imports, I kinda got the hang of it, there are so many things I need to do to get the right lighting... Which is good! Starting to get the hang of it.

But as I was testing I noticed how my spotlights needed up to 10k+ lumen, just to be visible, is this how it's supposed to work with hdrp?
I max the sliders in the inspector, and no light is visible, add a couple of 0s as the end and I just about see the light, add a couple more and I get the strengt I'm looking for, but the lumen is going insane

[daring haven]

I don't understand why, but I have observed similar. I now keep adding zeros to get the right ballpark figure, then fine tune from there. I sometimes use EV instead as the unit - it seems more linear rather than exponential. I know daylight is supposed to be like 130k lumen, but I often go much higher than that for spot lights.

[deft fiber]

@graceful shoal @daring haven In HDRP how birght a light is depends on its intensity relative to exposure
It's recommended you use real world light intensity values and adjust exposure to get the desired look

Different light units result in different light intensities depending on the type of light source

[graceful shoal]

Oh yea, don't get me started on the exposure thing, it's driving me insane.

When setting up my lighting, should I set the global directional light (sun) to the lumen I want (say 100k), then adjust the exposure after this? Then there's this other exposure thing (adjusted exposure or something)

I'll probably figure it out later today when I sit down, but if there's a complete step by step guide on how to do this, please let me know!

Also, there is a massive difference between the hdri and physically based sky when it comes to settings, right?

[daring haven]

I think the "right" way is look up wiki pages etc for "a street light is 5k lumen, roadways might get up to 19k, bright sun is 130k" etc. Then adjust exposure. But I still get weird effects - you cannot have too many lights near each other due to limits and shadows going insane etc. My exterior shot for example has the building reflection being way brighter than the building. Its a asset store asset for rain puddles - so not Unity's fault, but I have to work around it.

[deft fiber]

I don't know if there is
The light and exposure stuff is "industry standard" so they don't bother making much guides for it
I would use the light intensities and exposure settings from the sample scene, or find some online

[graceful shoal]

I'll probably so this as well, I got a decent setup now, gonna finish my scripts tonight, then start building a simple world before I jump back I to lighting and getting it to look nice

Ty!

[shadow zodiac]

Alright thanks I'll check that

[old nova]

they both have the same material but its not visible on the other one

they both should be red

im generating the big mesh at runtime, why doesnt this work?

[old nova]

fixed didnt calculate normals

[timber lichen]

Hello, would it be possible to make this star shine like this star without using post processing layer?

[timber lichen]

That yellow star only looks good when I zoom in with the telescope

[chilly kettle]

you could use a simple yellow to transparent gradient as an overlay to fake that " shine "

[timber lichen]

How?

[chilly kettle]

well, i know nothing about your project, so i cant tell you how you could do it ^^
But in the end its just a sprite with a 2D Texture that you could lay infront or behind your star ^^

[timber lichen]

I have a 3D project, I can't use post processing layer because you can't see the details of the particles when you zoom in and it looks weird

And the star is made of particles

[chilly kettle]

did you try emission on the particles + postprocessing bloom?

[timber lichen]

Postprocessing bloom is the problem, you can't see the details if you enable it

It'll fix the shine effect but it'll make another problem

[chilly kettle]

i see

[timber lichen]

looks like this with the postprocessing bloom enabled

[fathom bough]

Is there a way i could render a light only on one camera?

[twilit elm]

I think you can do this with light layers

[worn tapir]

not sure but either you simply have a light somewhere
or it might be unity reserving that extra slot for indirect lighting

[gleaming inlet]

Heya so I tried baking lightmaps but some of my models seem to have weird lightmaps? it seems to happen to regular cubes aswell only when these rocks are included. Any ideas?

[deft fiber]

Check lightmap UV overlap and texel invalidity debug views if they reveal clues

[gleaming inlet]

This is the UV overlap view. Let me look into how to analyze this

[real hill]

a bit of a weird thing happening here to my shadows on URP, if you look at the edge

[carmine saffron]

Can someone please please help me. I have such a simple concept, but in execution seems virtually impossible. I've made a diagram in hopes of that helping someone understand. I'm using the 2D lighting system as a "field of view", for lack of a better word, and it works beautifully, but now I'm seemingly completely unable to add lighting to my scene because each god forsaken light just cuts right through the obstructed vision making the "field of view" technique useless. It seems that I either get my "field of view" or simple lighting in my scene, which isn't an option for the dream game I have and I'm contemplating just throwing it all away because nothing is working. Please, any ideas will work, I'm cool with implementing whatever, I just need a solution.

I practically just want to know if it is possible to draw shadows above lights, or some how decouple shadows from a certain light blend mode, or something. Because its not like I need those light nodes to cast shadows, the only shadowcasting "light" I need is the "field of view" the player is emitting

[eternal pasture]

URGENT SHORT QUESTION

I'm sorry, but this is really urgent. Is there a way to increase the brightness of a baked light map?

I need to make the whole scene brighter without changing the settings of dozens of lights and re-baking it.

[little condor]

If you're using HDRP/URP then you can use the Indirect Diffuse Lighting override on your volume:

[eternal pasture]

Thank you so much!

[dawn pawn]

I want to have different lightmaps on different places in my scene (lets say building1 has lightmap 1, building 2 has lightmap 2 with different sun position)

How can I bake the lighting for just those game objects?
Right now it bakes the whole scene, which is not needed and will increase memory usage

[dawn pawn]

https://forum.unity.com/threads/bake-lighting-per-area.1361620/

[deft fiber]

No such feature
You can however detach baked lighting data from scenes using something like this
https://github.com/Ayfel/PrefabLightmapping

[fringe plume]

does anyone know why area light goes through walls (point light not) or is this why it's called area light?? very confused

[daring haven]

You may need to share which version of Unity, which pipeline (built in/URP/HDRP), which mode (baked/realtime), what shadow mode you are using in project settings, etc. So many options! E.g. I remember in HDRP giving up on area lights for a while, but I think work now. So some versions of the pipeline might have had incomplete implementations.

[limber delta]

Also interested in why area lights go through walls. Using v 2021 and URP. Baked lights only.

[arctic pier]

maybe add an emissive ?

[deft fiber]

In this case lightmap resolution on the floor is too low to bake the shadow without leaking
You can increase it, but ideally for the light baker the floor and wall are geometrically connected, not just sitting atop each other

[timber lichen]

I did, but I already fixed it

but I don't remember how I was just trying everything

[arctic pier]

Ok ok

[jaunty thicket]

What lighting do I apply to a UI? The white isn't coming out white enough

[deft fiber]

To the best of my knowledge UI is unaffected by any and all lighting

[jaunty thicket]

ty turns out my source image was not true white

[fringe plume]

hdrp, realtime (i tried changing to baked too), i try to change version now too

[short isle]

Reduced additional punctual light shadows resolution by 2 to make 216 shadow maps fit in the 4096x4096 shadow atlas. To avoid this, increase shadow atlas size, decrease big shadow resolutions, or reduce the number of shadow maps active in the same frame

I get this message in the scene view after implementing some point lights. I reduced shadow map resolution to make the error go away.

Am I correct in that if I had baked my lights, I wouldn't have received this message?

[fringe plume]

is this the purpose of area lights or a bug? i still dont know. I have shadows enabled and the light still goes through walls if they are in the range, with point lights i have no problems, it stops at walls even if the range is bigger

[daring haven]

I don't know. I thought I was using area lights successfully in realtime mode, but I found a statement in docs "Because this lighting calculation is quite processor-intensive, Area Lights aren’t available at runtime and can only be baked into lightmaps". I am not using baked lighting, only real time, and am getting them light things up. So I am confused myself.

I was using area lights for indoor lighting from the ceiling so I could get sun coming in through the window casting shadows on the floor using a directional light that casts shadows. I don't want to add to the brightness of everything outside the window. So I am scratching my head too. Point lights and spotlights were not a great way to generally improve illumination inside.

[tight parcel]

hello, when looking from the side the shadows look really low resolution, but looking from the top makes them crystal clear, does anyone know how to fix this?

[timber lichen]

I understand that shadow resolution and distance are tied and inversely proportional, but is there not a way to override this and just make the editor and game more demanding to run?

[tight parcel]

i already have my graphics on max

so

i wish there was

[deft fiber]

Yes, you can increase both shadow resolution and distance

[timber lichen]

I want to increase both without degrading

that's the problem

[tight parcel]

how

because for me when i increase the distance the resolution gets worse

like the pics above

[fringe plume]

yeah ok :/ if you find a better solution or something, tell me

[wheat wing]

Anyone here have expereince with Bakery lightmapping?

Why would a bake cause something like this....

[trim glade]

Any idea why can't I see the my terrian in my Scene? I'm really new to unity

[chilly kettle]

No Lightsource? ^^

[trim glade]

I do have a directional light but it only works in game

moving it around the terrian does nothing...

Ohhh I got it fixed, I had fog on my bad 😅

[chilly kettle]

👍🏻

[trim glade]

wait is there a way to make it that I can't see fog in Scene but ingame I still see it? disabling and enabling it every time is kinda annoying

[trim glade]

Wow, tysm!

[chilly kettle]

np

[granite jasper]

anyone can help me in making this type of result in unity.

working in srp

[vague atlas]

Hey! I have problem with casting dynamic light on my game. How can I make shadow NOT pass through the floor?

[chilly kettle]

Which is the result you want? 😄

[chilly kettle]

It looks like your floor is not blocking the light, thats why its going through.

[vague atlas]

how can i block the light

[chilly kettle]

i dont know how your scene looks. Is it a 3D Model or just Flat 2D?

[vague atlas]

flat 2D

[chilly kettle]

Maybe this helps
https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@7.1/manual/2DShadows.html

[raven flower]

you want this effect?

[vague atlas]

i want to achieve effect simillar to this

[granite jasper]

the second image result in the unity one's the lightning, i mean maximum near that XD

[deft fiber]

@timber lichen @tight parcel Increase both variables together
I don't quite see why this is a problem

Realistically you'll want to use cascades

if you want to have shadows far away, but keep resolution up close

[trim glade]

https://gyazo.com/c40a1d589ea0d833e419f10812e4e536
I got this weird bug but it only happens when I set the Camera to Solid Color and then to black, how do I get rid of this annoying bug?

[trim glade]

it happens because I'm using a render texture (I found out by removing it) any ideas how to fix this?

[daring haven]

Are you using TAA or similar antialiasing on the main camera? I don't know why the small circle unless you have a light shining forward attached to the camera or something, but I get artifacts kind of like that using TAA (temporal anti-aliasing) for anti-aliasing when radical light/dark changes occur. It fades out after a bit.

[frank folio]

Is there any option to get a smooth transition for lighting when objects move into the range of a light? Right now the lighting goes pretty much from 0-100 instantaneously for the affected object, which is very noticeable

[daring haven]

What sort of light is it? A spotlight? There are the two angles for spotlights (inner and outer) that gives you some control the drop off rate at the edges of the spotlight. The image on the left seems to have a narrower focus with harder cutoff range? Also check the range of the light and I think there is a separate distance based falloff as well? (I have not used that one myself yet.)

[hidden void]

need help figuring out why the left scene light is so bright

both direction lights are using the same stings

its 2 diferent projects

using urp in both

[hidden void]

in the left one the direction light does not have the "light appearance" option

any one know how to make that show up?

ok solution was to change color gama to linear in player project setings

[heady veldt]

Hello; for my game i would like to have a slider where you can change the Brightness. I was thinking to allow the player to adjust the Post Exposure property of the Color Adjustment override. What do you guys think?

[trim glade]

I'm not using anti-aliasing but I figured out this bug is caused by my render texture any way to fix it?

https://gyazo.com/62ad53c39a8b3fe2a5d237df8701a77c

[trim glade]

and I also don't have a light shining forward attached to the camera

[daring haven]

(1) buyer beware, I don't claim to be an expert - just learning too! (2) I have not used render textures before, so just reading the docs now. I am looking for anything that sounds "temporal". E.g. TAA for antialiasing looks at the previous frames, which can result in shadowing if the contrast changes too much too quickly. But I cannot see anything. Does anything else have that effect? Like its not bloom or some other post processing effect that is combining with the render texture to cause the problem? (3) Basically I don't know. I would try turning more things off bit by bit to see if it is some interaction going on.

Do you have chromatic aberration or something on? Why is there a "glow" sort of effect around the material?

[trim glade]

Oh sorry I didn't mean it like that, I'm just really frustrated, I apologize

[daring haven]

No problem at all - just warning you my advice might not be very good. I frequently get frustrated by Unity too!!!

Sometimes just talking it through helps.

[trim glade]

That's fine, fine advice is better than no advice at all, thank you man, I tried removing the chromatic aberration that's how it looks now: https://gyazo.com/c29738bb17f876151fc718a1b44dca8c

really weird 😅

[trim glade]

oh nvm its the Vignette off that is causing that

[daring haven]

That is, ummmm, well, yeah! Have you considered an exorcist? That is... different!

At the end of my knowledge sorry!

[trim glade]

Alright... ):

@daring haven do you happen to know anyone that is able to fix that issue?

someone with a lot of knowledge..

or either, another way to make the sky black instead of setting it to Solid color and to black?

Solid color is also a cause to this

[knotty shadow]

hey guys, I've been having trouble getting my lighting right.. I want to bake the directional light (sun) and that works with the "baked indirect" mode and setting my directional light to baked only, but that obviously removes the dynamic shadow that my player has from the sun. So I'm trying mixed mode for my directional light but that doesnt give my static objects the nice shadow as if I baked them before.. I get pixelated ("realtime") shadows for everything.. my entire environment is set to static so I assumed that only the static objects would get the nice baked shadow and that only the player would get a dynamic one (which is lower quality, but that is fine for now)

so how can I bake my entire scene with the nice baked lighting, and only have a dynamic shadow for my player?

[daring haven]

I don't sorry - this Discord server has been my best source of getting answers. And no, they don't all get answered! You could try the forums as well in case different people visit there. I started there, but you get faster and more interactive responses here on Discord.

There are some good people here, but I leave it to their time availability rather than calling them out by name.

[trim glade]

Alright thanks man

[little condor]

If you're using HDRP, you can change the size of the texture used for your realtime lighting in the Shadows section of the directional light. Using a larger size will give your scene less jaggy shadows.

[unique terrace]

I'm having an issue where the light probes just don't do anything. I can place them into the world, but they ignore anything I pass between them, like they aren't even active. They are physically there, but that's all. I've baked and rebaked but nothing changes. I could really use some info on what might be causing the light probes to just stop working.

[trim glade]

I fixed this issue!, finally setting "A" to max in the color of the Camera will fix this issue immediately.

[trim glade]

Anybody knows why is my flashlight (light) not going up and down and is freezed in rotation or smth?
https://gyazo.com/3f2211b609a42d8bf4dfa2d45bb6758f

[daring haven]

I assume something else is controlling its Y rotation (like another script).

[warm hemlock]

I have put a composite collider on the wall as well as a composite shadow caster, but the player light (shown in image 2) is still simply going through the wall instead of being blocked by the shadows. As you can see, it is set to receive shadows. Does anyone know why this may be?

[trim glade]

anyone knows how to make dots in the screen like that? (these tiny pixel dots)

[unique terrace]

I'm hoping someone can give me some ideas as to why the light probes seem to be unresponsive. I've placed them and baked them, but see no reaction between the light probes and the non-static object in the scene. It behaves as if they are not even present.

I've built MANY worlds with light probes, and I've never seen this problem before now.

[winged elk]

hiya anyone know why the light going through the ground, fank you.

nm i had shadow type turned off im dum

[lunar dirge]

Hello, I am facing this issue where, in HDRP, i need to crank up my point light's intensity to 9999999 Lumen to even start seeing any light. Does anyone know why this could be happening ?

[crimson orchid]

can someone teach me how to make good world lighting

a bit realistic too

lens flares all that stuff

[little condor]

HDRP uses physical light units based on 1 unity unit equalling 1 meter. So you need to keep you models to scale.

If you create a cube and don't scale it, does the point light look correct when next to it?

You may have to post a screenshot of your setup so we can what you're doing.

Also, please don't post questions in multiple channels. It gets confusing when people start replying in different places.

[lunar dirge]

If I make a 1x1x1 cube and put a point light next to it, at 40000 Lumen, there is just a slight bit of light being cast onto it

[little condor]

Hmm that sounds odd. To replicate a lamp, for example, should be around the 400 mark.

Is this an empty project, ie you haven't got any fog or other post-processing going on?

[daring haven]

I have found as soon as I have gone crazy with the strength of one light, I start cranking up everything else - when the real solution was to reduce the strength of the other light (and adjust exposure instead).

[crimson orchid]

can anyone give me tips on this

[runic quarry]

this fresnel effect in URP is way too intense, it seems like the edges are glowing (even in shadow areas)

any way to get rid of this?

this is apparent in the eyes, where increasing the smoothness worsens this reflection

[runic quarry]

here's one very serious example

expected result (blender)

[daring haven]

https://create.unity.com/hdrp-guide ? ("The definitive guide to lighting in the High Definition Render Pipeline (HDRP)")

[daring haven]

I don't know if its the same, but I had problems a bit similar (white like that) due to "smoothness" being too high after importing into Unity. Cranking down smoothness in the material solved it in my case (for leaves on trees).

[runic quarry]

turning down the smoothness dims it slightly but doesn't quite solve the issue

the person in this thread partially solved the problem by switching to specular workflow instead of metallic, but again that's another workaround that doesn't quite solve the problem https://forum.unity.com/threads/please-help-to-fix-crazy-fresnel.375346/

[thick burrow]

hello, i recently started using Enlighten for lightmapper, and i'm using unity 2021 and it takes at least 5 hours to bake, is there any way to make the baking process faster? like 15 minutes maybe?

[chilly kettle]

Reduce Resolution

[thick burrow]

What do you mean by that?

[chilly kettle]

Btw. Enlighten is deprecated

[thick burrow]

it is available in unity 2021

[thick burrow]

i saw that in 2019 but in 2021 it works

but takes hours to bake, but the results are flawless

[chilly kettle]

Yes it is..and it says that its deprecated ^^

you should use Progressive GPU for Lightmaps

this will speed it up very well

[thick burrow]

i have baked in GPU before, but the enlighten baking gives a much more flawless result than GPU

at least for me

[deft fiber]

Different tools for different jobs
If you're getting worse results with progressive lightmapper you probably haven't configured it right

[thick burrow]

Not worse, it's not bad but i'd prefer enlighten over it

[thick burrow]

also by resolution do you mean enviorment reflections?

[thick burrow]

oh i see

[chilly kettle]

thats the thing how detailed your lightmap is.. and how big and how long it takes ^^

[thick burrow]

yeah it makes sense why it took so long 😅

[chilly kettle]

The Resolution depends on the scene, the amount of lights etc.
You want to keep it as low as possible.

and as high as you need ^^

[thick burrow]

i don't have that many lights they're probably less than 20

but yes i was messing with these values in GPU and i forgot i change them

thanks for the help anyway

[warm hemlock]

I have put a composite collider on the wall as well as a composite shadow caster, but the player light (shown in image 2) is still simply going through the wall instead of being blocked by the shadows. As you can see, it is set to receive shadows. Does anyone know why this may be?

[warm geyser]

hey guys, so im making a game that i want to be pc/vr and im using the universal render pipeline for a good balance of performance and visual quality, but the lighting is just so off

its like, they used the realistic formula for light falloff but didnt use it right so lights are far too bright up close and very dim at a distance

even when baking

i found that the only way to get it to look good is to use linear color space, but i know this decreases the performance considerably

does anyone know how much worse linear color space is? is it worth using for a game that will be demanding in other aspects (pbr textures, extra cameras rendering with post processing)

should i just bite my tongue and try to make gamma look as good as possible

[chilly kettle]

Im doing VR Projects for years now and never used gamma ^^

[warm geyser]

is it performant?

i dont want my players to get nauseous

is linear performant**

[fickle needle]

pretty sure there's little to no GPU/CPU performance cost to using linear over gamma

[warm geyser]

oh okay lmao

[chilly kettle]

Maybe 10%

But you will have other problems in performance than the lightmode

[warm geyser]

wdym

[chilly kettle]

Drawcalls, Polycount, Materials, Realtime lights etc.

thats the stuff you should care about, not gamma/linear ^^

[warm geyser]

aight

im going for a phasmophobia-style look so most of my models will be lower poly with the detail in the textures, and the only realtime lights will be flashlights

i think thats manageable

[chilly kettle]

yep

[shadow horizon]

Baked a pointlight (set its mode to baked) but once baked, it produced no light. is there common things i need to check so i dont waste time baking and not getting results i want?

[deft fiber]

Can't think of many reasons
Make sure that the light is Contribute GI static, and that the evnrionment is likewise and set to receive baked light from lightmaps

As always, bake on the GPU and at the lowest resolution you can get away with for test bakes, and a simple test scene is ideal for ironing out the kinks in the process so it's more likely work the first time in the big scene

[tiny mesa]

hey guys any idea why the light keep passing through the interior?

[deft fiber]

Due to limitations of rasterized shadowcasting, sharp edges in geometry often leak light
The best solution is to make extra shadows-only geometry to pad the walls or corners with

[tiny mesa]

is it somthing i should edit in my importation option?

[deft fiber]

No, you would add entirely new mesh renderer gameobjects

[timber lichen]

Im wondering what this lighting glitch is called, this is not in Unity

[daring haven]

"Pretty in pink"?

[olive hinge]

Hi, How can I achieve lighting quality like this Unity's VR example? My lighting is somewhat blurry.

[timber lichen]

can anybody help me with makin room dark?

[stone cargo]

use post processing volume

[timber lichen]

i did it with ambient thing

[timber lichen]

do you know how can i add light to the object?

like i have a sphere and i want to paste the light inside of it

[stone cargo]

is the sphere translucent like a bulb

[chilly kettle]

increase shadowmap resolution

[timber lichen]

its a transparent sphere

[stone cargo]

yes

and put the light as child under the sphere

[timber lichen]

i have the same lmao

[chilly kettle]

Show Screenshots 😉

[timber lichen]

its not necessary anymore 🙂 i used ambient thing in render settings

[timber lichen]

doesnt look good

i mean i need a sphere to glow

so it will produce light too

[stone cargo]

yeah but if the material is translucent the light should go through it

[timber lichen]

annoyin💀

[stone cargo]

what happened there

[timber lichen]

its just when i tryin to fly closer it just happems

i swear its for everyone

[stone cargo]

then its not a problem

[timber lichen]

still it looks like a light from no where

[stone cargo]

https://www.youtube.com/watch?v=bU1sBNfbdM4

it has to definately do something also with the textures

[timber lichen]

it just doesnt work lol-

help-

[stone cargo]

did you watched the video

[timber lichen]

yes i did

i made it how i wanted

[timber lichen]

thanks tho!

[stone cargo]

what did you did then there was it on the textures

[timber lichen]

wat

[stone cargo]

how did you fix it

[timber lichen]

just turned on emmision and intensity and then putted light inside

and now i need to make this bloom but i cant because tutorials are outdated

why is unity changing so fast

can you help me-

[stone cargo]

https://www.youtube.com/watch?v=bkPe1hxOmbI

[timber lichen]

donee

thanks

this grid inhibiting.... how can i hide it?

[deft fiber]

Grid visibility button in scene window

[timber lichen]

yeah just realized, thanks!

[twin sun]

Hey, can anyone confirm what light falloff lights in the built-in renderer uses?

[deft fiber]

iirc it's linear, as opposed to logarithmic in URP and HDRP

[pure kindle]

How can I become better at lighting?

I feel like this looks okay but it's not quite perfect

is it just because the walls and floor are missing textures and environment?

[pure kindle]

Textures seem to help a bit

[limber delta]

As with anything else you just need to study it and then apply what you learn. Over and over 😊 There are probably books and videos on YouTube to check out but my tips would be to study real life as well as games and movies. Perhaps grab a still from a movie you like and then try to recreate the lighting in that shot.

You should also study color theory and composition as they kind of go hand in hand.

For your environment some tips would be to start simple. Perhaps apply some kind of hierarchy to the lightning. Right now everything is evenly lit and its very light as well.

For example, you could first establish a feeling you want to convey, then try to work towards that. Keep it simple.

[deft fiber]

Learn all the ways the engine / render pipeline can do lighting and how to best use them
Beyond that it's just studying references from real life places, photography as well as art by more experienced artists
With lighting the subject matter is really important
The room you have would look strange no matter how "good" you were are at lighting
How often have you seen a featureless chamber dotted with industrial lamps? Always think about what purpose the space is meant to serve and what feeling is the scene meant to convey

[little condor]

And often, less is more, so reduce the number of lights, reduce the amount of AO and reduce the reflections.

As mentioned above, find a reference photo of a simple scene to try and replicate and learn the various tools Unity has for lighting, there's no single solution unfortunately.

Also, if you want to learn realistic lighting the you'll need to understand how PBR materials work and interact with lights.

[pure kindle]

Thank you all for your tips! I’ll check all of them out 🙂 happy thanksgiving!

[oblique crown]

guys, does anybody knows why I am not seeing the probes created by apv? i can see the bricks, cells just fine, but there are no probes

[pure kindle]

https://cdn.discordapp.com/attachments/787408359853654077/1045588311378509845/bandicam_2022-11-25_01-34-16-556.mp4

@limber delta @deft fiber @little condor I think I made improvements. What would you all say?

[little condor]

Huge improvement, looks really good. The lettering in "HELP" looks too neat, but the scene definitely has spooky vibes now. I'm also not sure what the room is meant to be, but still, you're on the right track. 👍

[pure kindle]

Thank you 🙂 I'll continue adding more props and such to give an idea of what the room is

[candid drum]

Hi, what is causing this square shadow in URP?

[chilly kettle]

Maybe an hidden Plane or something? ^^

[candid drum]

I'm 100% sure there is nothing, I think it's related to light settings

[limber delta]

For sure! Looks sweet, great job.

[pure kindle]

Thanks!

[pure kindle]

Since I'm on the topic of lighting, is anyone familiar with trying to get a mirror to work with HDRP using a Planar Reflection Probe? Or do I have to create a custom shader and render a camera onto a quad?

[chilly kettle]

Have a look on Screen Space Reflections

[pure kindle]

Screen Space Reflections don't seem to work for me

they don't work with the decals I'm using plus it loses color in the reflection

[deft fiber]

Why could you not use the existing planar reflection probe?

[grave edge]

what does this mistake mean?

I did generate lighting in workflow through lighting

[pure kindle]

It could be because I don’t know how to use it, but I just wasn’t able to get it to work

There’s no tutorials on it really, and I followed the Unity steps for it and it didn’t work

[pure kindle]

Okay I got the mirror working

However, if you look I have 2 lights per fluorescent light

I have an area light which is for general lighting and a point light for specular highlighting and making the area above the light brighter

However on the mirror you can see the point light floating because it shows up as a specular light

Is there a way to remove specular highlights in HDRP on a per-material or per-object basis? I tried disabling specular highlights all together but I need them for wall reflections of lights to make it more realistic

do I have to write my own shader perhaps?

[safe moat]

Hi! the lighting in my scene was fine for months and suddenly one day I got an error saying "lighting data asset ‘lightingdata’ is incompatible with the current unity version. please use generate lighting to rebuild the lighting data. realtime global illumination cannot be used until the lighting data is rebuilt. unityengine.guiutility:processevent(int32, intptr)"

So I did generate the lighting and now it looks super weird

what would be the best approach to fix? Should I have been using the latest unity version?

[safe moat]

And another scene has this lighting now:

[deft fiber]

It currently looks like how lighting looks like at runtime if it's not generated, so perhaps it has failed to generate somehow

[deft fiber]

Hard to say
Have you been jumping between unity versions with your project?

[safe moat]

No, I have been consistently using 2019.4.4f1

[safe moat]

Hmm. seems like it did generate since it didn't ask to generate again. Is there a way to check?

[crisp helm]

im trying to have a light shine where the cursor is pointing and the pointing part works fine but the spot light isn't lighting anything up. anyone know if this is a common issue or what i could do to troubleshoot?

[crisp helm]

nvm

[snow pollen]

hey guys im using bakery to bake my lights, but im getting these weird artifacts, what settings in bakery would change this?

[deft fiber]

I don't know about bakery, but having lightmap UV seams running all across the mesh is problematic, because each seam needs margin space

Without which color and compression artifacts will bleed over from adjacent UV regions

Voxel modeling software have the bad habit of creating extra edges and UV seams absolutely all over

If you can't modify the lightmap UV unwrap, you could disable lightmap compression and increase its resolution

Also, in practical scenarios having textures on surfaces helps hide lightmap compression artifacts and other imperfections

[timber lichen]

I keep running into an issue where my bake keeps stopping at one specific point and the time perpetually increases.

Do you guys know how I can fix that?

[whole bramble]

lightmapping breaks static batching

whats the solution\

[deft fiber]

Nothing about lightmapping is supposed to break static batching, and I can't find examples of it happening

[safe pewter]

Getting shadows like this, not really understanding why.

No baked light maps (disabled in project). Default unity sphere (so probably not a geometry problem)

Changing cascades/bias/etc does little to fix the problem

[deft fiber]

It looks like shadowmap is being drawn on the mesh, but the shader is not calculating shadowing in the same place

Normally that jagged edge is hidden by diffuse shading

[safe pewter]

i assume that means that it isn't possible to solve since I'm not using diffuse shading (unlit material)

[deft fiber]

Unlit shaders are excluded from shadow casting entirely to avoid this, but if you want it to be shadowed and not suffer from that problem then I assume you need some kind of diffuse shadowing, a cel shader for example

[cunning lake]

im having issues with lighting

because idk how it works

9 point lights, its all nice and good

i add 3 more and things get dark and buggy

[daring haven]

It depends on the render pipeline, but for HDRP I think point lights are like 6 lights (6 surfaces of a cube), and there is a limit in project settings (which is 24 lights per tile). So 9 = 27 (wont notice a bit missing), 12 = 36 (more likely some will be lost). Spotlights use just 1 if you can get away with it. But if your camera is using automatic exposure, the other thing that can happen is parts go darker because other parts are now lighter.

[sonic mason]

when i bake this , it looks like this

is there a way to bake something with this type of uv unrap using atlas ?

[deft fiber]

Unity can generate lightmap UVs which are separate from texture UVs

You should specify if you intend to bake lightmaps in Unity or in Blender

[mellow sierra]

@timber lichen You've been told before not to crosspost. This is your last free one.

[timber lichen]

oh true

[timber lichen]

How do I fix this?

[chilly kettle]

What is "this"?

[timber lichen]

Light colour objects become black when a light its hitting them

[limpid ivy]

hey there, I'm having an issue in my game where the lights I have in the scene for some reason render in big square areas on the terrain. I'm not really sure why it's doing that. I'm sure it's some setting or something but I don't even know where to begin, if anyone has any thoughts i'd be super grateful! thanks

[haughty trail]

Hi, I'm working on a project where I'm using a skybox I found on the unity asset store. I'm a little new to lighting in Unity and I'm not sure why it's displaying so weird, can anyone point me in the right direction?

[limber delta]

Not sure, but looks like fog is on.

[deft fiber]

@safe moat You don't need baked lightmapping enabled to generate lighting if you only need the ambient probes

I should have mentioned that earlier

[coral talon]

How do I decouple ambient lighting from directional lighting (hdrp)? The directional light seems to have its own ambient light linked to it

[deft fiber]

I don't think it does, but if your Volume component defines sky as physically based sky, it'll calculate ambient lighting using the directional light

If you make a new "indoors scene", you'll have Volume settings that do not add any ambient lighting regardless of directional light's presence

[safe moat]

thanks. how do I only enable ambient probes? Also, I noticed when I baked it you were right it failed due to GPU error. I try to follow the forum to fix but no luck. I am suprised at the error though because my laptop is super powerful and never gave that error.

[deft fiber]

By hitting "generate lighting" it generates the ambient probe and a reflection probe, I believe
If you also have "baked lightmapping" checkbox enabled it attempts to do a whole different process that you do not need unless you specifically want to calculate baked lightmapping

[safe moat]

thank you! I believe I unchecked it. It is better and no longer giving an error. but still not as good as it used to be. very dark

[deft fiber]

The gentle blue hue seems to be what I'd expect in those conditions, and since it isn't pitch black anymore the original problem is eliminated
I didn't see what it looked like originally

[safe moat]

not the exact location but close

[deft fiber]

I see, you could double check Environment Lighting settings, the Source and Intensity Multiplier

[safe moat]

thanks. I played around with it and it didn't seem to do

I might have to ask the terrain creator

[deft fiber]

If you use gradient, you control the brightness of the ambient lighting with those color fields
And if you use skybox as the source, it'll be the sky multiplied by Intensity
Just remember to Generate afterwards to make sure the changes stick

[safe moat]

Copy. ah I forgot to generate! It doesn't let me change from Gradient

[deft fiber]

Perhaps you're using a custom asset that's overriding it

[safe moat]

ah I see. Let me see if procedural worlds can help me fix. Maybe I reset something by accident

[deft fiber]

Pretty important to mention if you're using custom assets that take control of these things

[proper viper]

Hi I need help with something, so when I put a light looking at the positive number of the Z axis the lights just don't work correctly, but when they look forward negative Z the do light correctly, both in the same object and same material.

[merry abyss]

Im trying to set up lighting for the first time following various online guides but I am not havinh much progress with it.
Is there a way to cast light from the skybox itself? the objects reflect the skybox despite there being no lights in the scene, but the reflections are dull and muted and also there's no light in the scene

[worthy relic]

Is there a way to evenly distribute the light so everything has the same brightness?

those are the light settings

[merry abyss]

How do I get my skybox reflections to not be so dull? the white is supposed to be light sources

the reflection probe shows it correctly

but the mesh/material does not

[proper viper]

Hi I need help with something, so when I put a light looking at the positive number of the Z axis the lights just don't work correctly, but when they look forward negative Z the do light correctly, both in the same object and same material.

[limber delta]

You could try using an area light.
Another option is the unlit shader.

[worthy relic]

I want to use the area light but I have no idea what baking a light is, all i know is to click the generate lightmap button once in a while 😭

So how would I go about baking the area light

[limber delta]

Start with this: https://youtu.be/hMnetI4-dNY
Then just search on YouTube: "unity light baking" for example

For a quick summary of light baking. Mark you object as static, then click generate.

[worthy relic]

thank you 🙏

[limber delta]

No problem!

[timber lichen]

https://cdn.discordapp.com/attachments/497872424281440267/1047345081058852904/image.png

does anyone know how to get rid of this weird blockyness?

I don't think it's a resolution issue, unless the resolution neds to be ubsurdly high, because rn the resolution is sety to 800

and it's still blocky

and only does this on surfaces close to the light though so idk

also standard render pipeline/build in render pipeline

https://cdn.discordapp.com/attachments/497872424281440267/1047345244166946866/image.png

my settings

like this is really really annoying

[crude lintel]

Try increasing "scale in lighmap" property of the object.

Also min chart size param

Also just share the lighmap data of that object.

[timber lichen]

wdym

[crude lintel]

The mesh renderer should have info related to the light bake. Share it here. Take a screenshot and share it.

[crude lintel]

Expand "realtime lighmap"

[crude lintel]

That's pretty small

[timber lichen]

how do I increse it?

[crude lintel]

Try reducing the "min chart size". Also, was scale in lighmap set to 100 when you last baked?

[timber lichen]

yes

[crude lintel]

That's weird then.

[timber lichen]

is there a way to fix it?

[crude lintel]

Try the min chart size thing

How many objects are you baking? Can you share the whole lightmap?

[timber lichen]

idk how to share the whole light mapo

but the ground the wall and the neon lights are the only thing that are marked as static and to use global illumanation

[crude lintel]

There are lightmap tabs in the lighting window.

[timber lichen]

also i am currently bakling

I reduced the min chrat size and started baking soz

[crude lintel]

Okay.

[crude lintel]

I'd that all?

[timber lichen]

yes

[crude lintel]

That's not a lot. I guess you're doing something wrong. I suggest looking up some tutorials on lightmapping.

[timber lichen]

this bake is taking a very long time so maybe itll work this time

[timber lichen]

I literally have 4 objects in the scene

theres not a lot to bake...

literally it

it did not fix it @crude lintel

[crude lintel]

If you're doing something wrong, then it doesn't matter how big of a bake it is. That's why I recommend learning about it first.

[timber lichen]

I have watched multiple tutorials and read docs on it I do not know how I'm doing something wrong

[crude lintel]

Me neither. I just see that your baked texture is really small, causing the issue at hand. As for why, I'm not knowledgeable enough about the lightmapping myself, and there's probably a lot of settings and context involved, so I can't really say what it is.

[crude lintel]

What tab is that screenshot taken from btw?

[timber lichen]

scene

[crude lintel]

What other tabs are there?

[timber lichen]

game inspector lighting hiearchy project console

[crude lintel]

Ok, then you didn't read my message properly. I asked to take a screenshot of the whole lightmap and specified that it should be in one of the tabs in the lighting window (tab).

[timber lichen]

yeah it's in lighting I already sent that

[crude lintel]

Okay, then what other tabs are there? In the lighting window. Not the whole editor.

[timber lichen]

scene enviroment realtime lightmaps baked lightmaps

this is baked

[crude lintel]

And realtime?

[crude lintel]

Ok, so what you have is not really baked lights. It's data for realtime global illumination, which I'm not entirely sure how it is applied to the objects.

[timber lichen]

it still has to bake it

[crude lintel]

Take a screenshot of the lighting settings asset.

[crude lintel]

Scroll it down so that all lightmapping settings are visible.

[timber lichen]

I did it!

I did the same thing I did with the neon lights to the wall, and then tthat fixed the blockyness

[crude lintel]

Wait, were you not showing the wall all this time..?😅

I guess it's my fault that I didn't specify which object you should adjust...

[timber lichen]

no I was showing the neon sorry

[covert flower]

im trying to use a skybox, im not sure why but this mesh is not affected by the environment lighting at all, every other object is fine as can be seen from the blown out lighting, does anyone know how to solve this?

[deft fiber]

@merry abyss I assume you've made sure the test materials here are perfectly smooth, metallic and have purely white albedo
If that's the case, you'll probably want to increase the cubemap's exposure
Or better yet use a cubemap texture that's stored in HDR format

Cubemaps that capture lights need to be really bright in the light parts

[waxen hull]

I have something weird going on with the lighting in my game scene. When I load the scene in unity and click play everything is lit properly, but when I load the scene from the "play" button in the main menu, the side of the buildings aren't lit and the color isn't right. I'm not sure what's happening

This is what the scene looks like when I load it through unity

This is what it looks like when I load it through the main menu

[astral escarp]

i think you need to bake your lights

why in my reflection probe texture, metallic materials turn black?

[waxen hull]

This was the solution. Thanks

[candid sundial]

Hello, not sure if this is the correct place for my question because I'm pretty new, but any assistance would be appreciated. I'm trying to create 2d lights/shadows for a top-down game.

I would like to simulate a sun at the top right casting a shadow on all objects in the scene. It would be a big scene and the camera will follow the player around, so a point light doesn't seem to work.

Similar to https://www.youtube.com/watch?v=slT_ArW60Xs&t=6s

I was wondering how to achieve this with the URP lighting system that Unity has, or do I need a custom script or asset from the asset store?

[sharp goblet]

Anyone have suggestions to improve the GPU usage of the GPU lightmapper? I've got a 3080 reporting 350 mrays/sec (not sure if this is low or appropriate for this hardware), but the GPU usage in task manager never goes above 10%, which the CPU usage is 60%+

[worthy relic]

How can I light up the entire indoor scene at once? I'm trying baked area lights because I heard they were good for it but as you can see they didn't work out too well and they overlap

[daring haven]

Have you tried a directional light? It lights up everything (they are not point lights).

[river parrot]

Somehow my terrain is dark no matter what i Do

URP

[worthy relic]

Directional lights don’t seem that ideal for the game I’m making

[limber delta]

Try increasing the range on the lights

[warm scroll]

is there any way to make pockets of darkness with a global light activated?

i have a 2d world and want the deeper parts of forests to be exempt from the global light

[rustic fable]

Does anyone know which parameter (URP) causes my shadows to have this strange shape? Compared to a straight line, since the light comes from the column

[silver grove]

nice painting

try increasing the shadow resolution

[deft fiber]

The column is a straight line but the shadowmap is made of pixels which can be tilted relative to the column, resulting in a jagged shadow edge
You can try increasing shadow resolution as mentioned, and another trick that can help in some scenarios is to rotate the light source around its forward axis to align the projected shadowmap with the column

[rustic fable]

I see. That makes sense. The lightmap are pixels, not lines

[idle hinge]

really simple question here: where is the setting to increase the distance that shadows lower resolution in HDRP

[timber lichen]

I have this problem with light that I really cannot fix. When a light touches a light colour it becomes black

I couldnt find the solution last day

[worthy relic]

Isn’t range just how far down it goes? My range is at 5 because it’s at y 5 and the ground is y 1

[limber delta]

From my testing I've noticed the shadows become softer the higher the range

I don't know why they act as spotlights though, never found an answer for that. Think it has to do with URP, but I don't know

[worthy relic]

Interesting, I’ll give it a try later

[worthy relic]

yoo it worked and it looks way better thanks man 🙏

[night shell]

pure metallic materials are esentially mirrors, the solution there is to increase your reflection bounces to 2 instead of 1

because in the first bounce, the metallic material doesn't have any reflection probe assigned to it basically so it appears black, if you increase the bounces to 2 then the reflection probe will be baked twice essentially to where that reflection is actually included in the actual reflection probe so to speak

think of it like layering basically

the bounces also can be found here in the lighting tab

[tulip meadow]

Hello everyone, I was hoping if I can get some help achieving a very similar lighting with my project compared to another I found of the internet? I understand I don't have the proper visuals such as the walls for my project right now and how that might affect how the overall look of the lighting will have on my project. Help will really be appreciated, thank you.

[night shell]

some questions

1. whats your platform target

because there are two ways typically one could go about it, either fully "baked" lighting (which means lights are baked to textures, which are typically way faster and higher quality but are not dynamic), or fully "realtime" lighting which is fully dynamic but not quite as high quality

[tulip meadow]

Just so I understand what do you mean by platform target?

[night shell]

basically my question boils down to whether or not you want potentially laggy but dynamic lighting, or if you want fast but static (non changing) lighting

platform target by that I mean is it for mobile, vr, desktop, etc.

each platform demands differnet things, some have alot of raw power, but others don't have alot of raw power which means your game needs to run efficently

[tulip meadow]

ah ok I understand. My target right now is Windows, Mac, Linux.

[night shell]

so as for replicating the lighting style they have in the scene its worth studying what you see within it

your scene first of all is lit from top down, but its harsh lighting and there is also no "ambient" lighting so everything in shadow is basically black

you are also missing little point/spot lights that are mounted to the sides of the wall like in that image to give little hotspots of light/intrest

first thing I would do is within your unity lighting tab to switch your enviorment lighting source to something other than skybox (because in your scene it looks like there is no skybox and therefore no ambient lighting)

this will brighten areas in shadow and make it so they are not pure black

you can also switch it to color mode which is simpler (but doesn't look as good)

I would also just remove the directional light you have in the scene as well

and with those changes that should get you most of the way there minus the wall lights

[tulip meadow]

wow, thank you, ill try it out now!

[tulip meadow]

This is the result, if I followed everything correctly (without the lights), is this what you were expecting to see, if so I'll start adding some lights.

[night shell]

you can increase the intensites of those colors also to brighten it up since that is overly dark

since they are HDR colors, there is an intensity field on the bottom that you can adjust

[tulip meadow]

ok one moment

[tulip meadow]

I see what's happening here, just gonna work on the colors. Thank you so much for the help.

[dense wing]

how can i make lights react to sound in unity pls tell

[deft fiber]

Find examples or tutorials of sound visualizers
They produce a changing variable which they use the drive the visuals which you should be able to drive lights just the same way

[dense wing]

oh okay thanks

[astral escarp]

That was the solution thx a lot ! ❤️

[fluid elbow]

Hi, sorry ahead of time if this is a question you get a lot. I'm working on an assignment I set for myself to learn basic lighting fundamentals in Unity for 3D level design – stuff like leading the player onto the right path with a spotlight or godrays – but I feel like I'm pushing against a brick wall with how little progress I'm making with the actual lighting tools.

I'm following Brackey's 2018 Lighting guide and various other guides and I've learned a few neat things, like making a new material for the skybox to adjust its properties or how to add PostProcessing. But the simple act of adding Emission to a material and then putting that material on a surface is giving me extremely weird results. In Brackey's video he simply dragged the emission material onto a surface, marks everything as Static, and then it begins lighting things as expected. Yet I do the same and...nothing.

I tried fiddling around in the Lighting Settings too and it gave a bunch of very odd results, but nothing that actually resembled the simple lightbulb-glow I was trying for.

I'm currently not at my computer but I'd love any kind of guiding advice or leads like tutorials or documentation.

TLDR: The basics arent working for me and I have no idea where to get started to make things work.

[timber lichen]

I found what is the issue but Idk how to fix it

When a light overlaps another one the object becomes black

like if there is a light and another light hitting the same object with a light colour it becomes black

any idea?

the point in wich both of the lights iluminate it becomes black

also if there is global light counts as a light

hitting it

[fluid elbow]

bump, sorry

[safe moat]

Perhaps you re using a custom asset that

[deft fiber]

Emissive materials only light up surroundings if the lighting is baked or precomputed
Both are pretty involved processes with a lot of moving parts and things that can go wrong
It'd help to know which system you're calculating the lighting with, and what the problems visually look like

Brackeys tutorials are easy to get into but they tend to skim over important details, and sometimes get them wrong altogether

[warped roost]

I'm using Emission plus Post Processing to create a neon strip effect, and it looked cool until I switched to baking my light instead of real time; now it looks... blurry when you stand near the light

I assume its something to do with bouncing, although I've disabled baked global illumination, so i cant change the bounces, or any setting really (if i enable it, the light just doesnt bake for some reason) and the quality is as high as I can put it with the same issue

[fluid elbow]

I see! Thank you, I will check when I get home later today and report back

[fluid elbow]

Okay - I'm at the computer right now. Going to tell as much as I can find about my scene's current setup.
I'm using the "Standard" shader for everything, I'm aware URP may help make the process smoother but I want to just make sure the bare basics works for me first before trying that (might be a bad decision)

currently the outside of my scene (indoors) looks like so - I made the skybox a bit funky color-wise on purpose partially because I like how it looks and also because I want to make sure I know when the light is coming from the outside

once indoors, the idea is for the square lamp in the roof to emit a basic yellow glow. Even with light turned on in the scene view though...nothing, no shadows cast.

i went into the Rendering -> Lighting tab to experiment with what may go wrong, and turned on RGI just to try. It did at least make the indoors of the room dark, but the lamp still doesn't seem to actually emit any light and there's still unnatural green lighting from the outside inside the house

lamp material looks like this for the record - completely basic, just following Brackeys, but has an Emission

[arctic isle]

@fluid elbow Hey! I can help you debug this. Can you change the emission setting to baked?

"Global Illumination"

Under the material properties

Then turn off Real-Time GI in your Lighting Settings and add a Point Light where your lamp is

[fluid elbow]

Ah, is an actual point light asset needed?

i figured (again from Brackeys) giving the material emission quality would make it function as a point light

[arctic isle]

Yes it more or less will but emissive materials can be noisy when path-traced

[fluid elbow]

i see

So what does the material placed on the lamp-cube do?

[arctic isle]

So add a point light and make it Baked

[fluid elbow]

ah yes was gonna ask about that too, thanks

now the room does have that faint PointLight-y glow, but its still not dark and seems to be affected again by the skybox outside despite being an interior

[arctic isle]

depending on the kind it contributes to in global illumination it's taken into consideration more or less as a light but because it has an entire emission surface it's much more difficult to compute enough rays to make it look great

ok lovely! Can you select all your mesh renderers here and turn on the static checkbox at the top right of their inspector? this will make them be "Lightmap static" and so then you can bake lighting into them

[deft fiber]

@fluid elbow You need a reflection probe indoors to prevent reflections from the outside from being seen indoors
In some render pipelines, a mesh can be affected by reflections from only one probe so if your wall is seen both inside and outside, it may not be able to determine which reflections it should be displaying
I think rather than hunting one by one all the things that are amiss or which Brackeys neglected to mention, it may be better to follow some more tutorials
https://youtu.be/KJ4fl-KBDR8
https://youtu.be/okYhs6kQ0xw
Either or both of these for example

[arctic isle]

we'll get to the reflection probes 😄 but yes @deft fiber is correct

[fluid elbow]

done, all the physical assets in the scene are in the "Level" parent and I changed the children as well. Should do!

[deft fiber]

In my experience there's so many things that could go wrong that you learn this process mostly just by repeating it enough times until you start getting the idea of what the importance of each setting is

[fluid elbow]

thats definitely the vibe I'm getting haha

[arctic isle]

Yeah it takes a while to wrap your head around all this

If you decrease your direct and indirect samples in the Lighting Window and turn off Real Time Global Illumination

and then press "Generate Lighting" things should start to work

and we'll get to reflection probes and light probes next

[arctic isle]

Take them down to 32 or 64 for now for quicker iteration

(GPU Lightmapper is faster if you have a nice GPU)

[fluid elbow]

indirect samples to 64 too?

[arctic isle]

Yeah

[fluid elbow]

gotcha

its looking nicer!

[arctic isle]

Very good!

Ok now let's get rid of those environment reflections

Create a new ReflectionProbe

[deft fiber]

You could make a thread, looks like it'll be a while

[arctic isle]

Yep thanks

[deft fiber]

I would start from tweaking the bloom settings (and first making sure there's no blurriness when bloom is turned off)
A very intense bloom can wash out details, and light baking can change the final brightness of a surface

[pure kindle]

Is it possible to get volumetric lighting with area lights?

My scene really needs volumetric lighting to feel a lot more creepy and foggy

but the area lights don't seem to be supporting it

[timber lichen]

When I try to bake my lighting, this happens:

Shader error in 'BOXOPHOBIC/The Vegetation Engine/Default/Prop Standard Lit': Couldn't open include file 'Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl'. at line 1332

[PathTracer] InitializeLightmapData job with hash: 30331b40bd6293dee3e1e32b25a3fc49 failed with exit code 2.

Line 0 in (null) - OpenRL reported error code 505: OpenRL error occured: RL_OUT_OF_MEMORY: fbd375255ca62aa482ca6b24af5a1e4c:0 exceeded available memory

Line 0 in (null) - OpenRL reported error code 508: OpenRL error occured: RL_INTERNAL_ERROR: A fatal error has occured.  (Error is non-recoverable, OpenRL context must be shutdown)

[night shell]

your running out of memory on your PC when baking your lightmaps

[night shell]

yes

[pure kindle]

How?

[timber lichen]

dang... I have 16gb ram and 8gb vram though :/

[night shell]

are you using urp/hdrp?

[timber lichen]

I guess I'll have to get more or make my scene smaller

[pure kindle]

Yes, HDRP

[night shell]

or built in?

[timber lichen]

oh hey moddingdudes

[pure kindle]

what's up

[night shell]

ah then in HDRP i'm not sure, but if you know shaders then you might be able to do something similar

I wrote a baked volumetrics solution that supports all

https://github.com/frostbone25/Unity-Baked-Volumetrics

though that is only built in pipeline, you'll have to port it or find a way to make it work in HDRP even though I know HDRP has its own volumetric solution

but if it helps you and you know a thing or two about shaders then looking into that might help

[pure kindle]

yeah I tried getting into shaders but I'm not too good at it yet

in HLSL/ShaderLab at least

[night shell]

if not then I think current solution would be to somehow fake the light cast from an area light by mabye using a spotlight that affects the volumetrics

I know in HDRP you can actually make lights that are basically only "voluemtric" if you disable both "affect diffuse" and "affect specular" on them

[pure kindle]

Hmm. I'll have to look into that. I ended up using 2 spot lights for now and it looks okay

[flint zinc]

Super basic Q:
I've added some objects and a directional light, but get no shadows:

... What am I missing here?

[deft fiber]

What shader are your objects using?

[flint zinc]

Whatever game with that, The issue I think is I put them into a scene made from the 2D tempate

And I'm not sure whats different

making a new project with 3D tempate

to see if it fixes it

[pseudo ember]

General question regarding lighting:
I'd like to use spotlights more, due to better performance.
But my rooms always end up to dark, when I use spotlights exclusively.

Anyone want to share their tipps for lighting rooms?
Placing a single point light in the middle of the room, just to increase lighting
works, but doesn't look that great (because lighting is not even inside the room).

[flint zinc]

Alright, now I import: https://assetstore.unity.com/packages/3d/props/low-poly-ultimate-pack-54733
And all materials are pink. I have URP, the materials are marked as URP so not sure what could be wrong?

[flint zinc]

So I have URP installed, and using the correct shader buy still pink. Any ideas?

[deft fiber]

Installed and configured?

[flint zinc]

Where is the configurations?

trying to look for them and google

[deft fiber]

Check pinned messages of #archived-urp for instructions

[deft fiber]

1. Only shadow-casting point lights are significantly more expensive than shadow-casting spot lights, afaik when shadowless there isn't a huge difference
2. Don't optimize unless it's causing a performance problem. Don't generally put too much effort into solving problems that aren't problems.
3. If you've got ceiling lamps or standing lamps, I find it handy to point one spot light down, and another weaker one up right below it (without shadows) to simulate bounce lighting from the floor. Still more expensive than just one shadowless point light though.
4. Consider baked lightmapping workflow if you can work around its limitations. It simulates shadows and bounce lighting and is cheaper too.

[flint zinc]

Sorry to keep bothering you, but I've found that, upgraded, but still have no shadows... How do I get shadows? My directional light has shadows ticked, each of these materials have shadows ticked.

[deft fiber]

Create some default cubes and view them through the game window to verify that they are recieving lighting and casting shadows as expected

[flint zinc]

They are not, and are grey

[wispy slate]

Hey does anyone know how to stop the directional light lens flare from appearing in front of terrain?

[warped roost]

I was able to fix it, I'm not really sure what I did but i think you were right about the bloom settings, it looks much less Neon-light which im not too fond off but its better than fogginess i guess

[lapis sphinx]

does anyone know how to fix this when i generate light

[night shell]

@lapis sphinx looks like you don't have lightmap uvs

[lapis sphinx]

oh ok thanks

[limber delta]

If also recommend baked lighting if possible. I usually have a main light, for example a point light. Then I add one or more area lights to simulate bounced lighting.

[limber delta]

Not sure what's happening exactly, but make sure it's marked as static if it is not moving.

[night shell]

might be best to elaborate on what exactly is happening in your scene

i.e. how your lighting is setup, if your using realtime/mixed/baked lights or etc.

[edgy yacht]

Is there any way to get an enclosed box completely pitch black (without lights), while having the outside be normal lighting?

[night shell]

yes

[proper saddle]

whenever I start my game the skybox turns white. I am using unistorm and I believe I set it up correctly. The setup process was a lil wierd for this plugin, but I do not know what is wrong...

[edgy yacht]

how would I do it then?

nvm figured it out

[autumn night]

One thing to add to @deft fibers answer: spotlight cookies. If you think about light sources in real life they are often directional and not circular - windows, led strips, panels. Also great for hyper optimized setups, if you ever need to work with platforms with limitations on amount of lights

[stray pike]

I'm new to unity (especially 3d), so I dont know whats the problem :(
at some angles my spotlight breaks and at some angles they are just fine (this started to happen only when I have more than 4 spotlights in my scene)

[chilly kettle]

Do you work in URP?

[stray pike]

no

[chilly kettle]

Which render pipeline do you use?

[stray pike]

I use unity's built-in renderer

[chilly kettle]

normally this is a URP problem. You can only use an amount of up to 4 (standard) or max. 8 lights per object.
But built-in should not have this limit.

[stray pike]

is there anything I can do about it?

[timber lichen]

Why

[chilly kettle]

Have a look into he renderpipeline settings.
Im not sure if this setting exists there

[stray pike]

where is it? cant seem to find it anywhere

[arctic isle]

where is it cant seem to find it

[night shell]

The issue your running into is that by default the built in render pipeline has a limit of 4 per pixel lights. When that limit is reached then realtime lights are shaded per vertex. That is why your seeing that strange issue. There are many ways to go about fixing it but the most obvious is to go to the quality settings and increase the per pixel light count

I.e. the quality tab under project settings, in there if your on the built in pipeline you'll see a field for per pixel light count

Whoops should have looked in the thread lol your question was already answered

But lots of per pixel lights can be taxing so like was suggested i would recomend baking... Or you could switch to deferred rendering which has no limit and is very efficent in regards to being able to have 100s of per pixel realtime lights

[sonic mason]

this is my blender version, my normal maps look great

but in unity , the normal maps ,specially when baked , its very hidden

[night shell]

your using the standard shader yeah?

[sonic mason]

yes

[night shell]

yep I think your running into there issues with the unity standard shader when it comes to baked lightmaps

one more question though, are you baking with directional lightmaps?

[sonic mason]

im using bakery
im using full lighting

[night shell]

I see there directional mode is none

what are your options?

I don't use bakery so I'm not familiar with it

[night shell]

directional mode, not render mode

[sonic mason]

sorry i misclicked 😛

[night shell]

yeah bake with a directional mode, mabye try dominant direction

baking with directionality means that if your materials have normal maps, it can shade using that directionality

[night shell]

getting you close to your desired result

[sonic mason]

ah thx ill try that

[sonic mason]

its far from the blender version still , :/

[sonic mason]

live lighting does work , but when its baked its meh

[night shell]

yeah I'm aware, and there are ways to bring that detail back

I would try the different directional modes and see which ones brings back the detail you want

[young plover]

Why is this limited to 8? I can't seem to find the ''Pixel Light Count'' since it says there's a ''Scriptable Pipeline'' in use and I don't know much about that, then I went to the HDR settings and found this alternative, yet I need more than just 8 for the project that I'm working on. Can somebody explain how can I expand the limit to at least 12 or more?

[night shell]

sounds like you need deferred rendering

[young plover]

What's that?

My issue is actually that every time I look down, the light turns off, which is odd.

[night shell]

huh, looks like URP is forward only so looks like you might be out of luck

the reason why its capped at 8 is because per pixel lights are expensive

[young plover]

Wait no

I'm wrong.

Everytime I look down the lights turn ON

[night shell]

probably because they are being culled

but I would ask do you need 8 realtime per pixel lights?

can you get away with baking lights for your project

[young plover]

I just thought it was a quick fix for it, but I guess I was wrong.

Do I use the deferred rendering?

[night shell]

if you need alot of realtime per pixel lights in your project then your probably going to need to use a deferred renderer

otherwise if you can't, then you need to cut down on the amount of realtime per pixel lights in your project

baking is one way to do that

[young plover]

Ooooh.

Thanks, I'll give the deferred rendering a try, I'm not really sure about baking though, I've heard its helpful most of the times but never used it or had any knowledge to use it before.

[night shell]

if you've never used it I highly recomend giving it a try and learning about it

baked lighting will often times lead to way higher quality results than you can achieve in realtime, and its all very performant because its basically "baked" or "static"

just to illustrate the point, here is an example on a pretty old project of mine comparing realtime lighting and baked lighting for a VR project

realtime

baked

[young plover]

Thing is I don't have any knowledge about lighting or any other category. I've come back to Unity after a few years of owning a system that was built in 2006. If you look for my old messages here you might see the idea I was using Unity 4.x, which really demotivated me from learning much more about unity and/or using it at all. I got a new system and I'm looking forward to learn much more about Unity, thank you for the help, I'll try to find information about the baking system and deferred renderer, since I don't have any knowledge.

[young plover]

This actually looks gorgeous. Might give it a try honestly.

[night shell]

https://www.youtube.com/watch?v=okYhs6kQ0xw

I've also written a tutorial for a company I work for on how to lightmap a scene as well - https://sdk.massiveloop.com/tutorials/lightingTutorial.html

[young plover]

Thank you!

[stray pike]

I actually dont know where to send this, but it looks like a lightning issue to me
my walls have these stripes for some reason, how do I fix it?

its not a material issue because with no material its the same

[chilly kettle]

Should be solved by changing the shadow bias

of your light

Its called shadow-acne
https://docs.unity3d.com/Manual/ShadowPerformance.html

[stray pike]

thank you

[limber delta]

This is great. Will be recommending to whoever needs help with the basics!

Oh, and I learnt about filtering 🙂

Never experimented with that

[ruby urchin]

I'm new to Unity and this could be a silly question. Only a limited number of lights are affecting my objects (8 point lights + a directional light). 4 point lights aren't reflecting with the ground. How would I change it so these lights reflect with objects in my scene?

[chilly kettle]

Are you working with URP?

[ruby urchin]

Sorry don't know what that is. If it's by default then yes.

[chilly kettle]

The URP (Universal Render Pipeline) hast a light limit per Object of 8

[ruby urchin]

Is it something I can change or would I use another pipeline?

[chilly kettle]

As i can see, you are doing some VR Chat stuff.. so it would be smart to bake lighting.
Because realtime light is heavy and not recommended performancewise when you do mobile/VR Stuff

[ruby urchin]

Ah okay! Thank you I'll look into how to bake lights

[chilly kettle]

Does your train move?

[ruby urchin]

No

[chilly kettle]

okay ^^

https://www.youtube.com/watch?v=hMnetI4-dNY

[karmic crown]

My URP 2D Light is showing gray and it’s creating like a beam of light that in the corner kind of works as a mini map because shadows that are casted with the main one show up as a mini version in the circle, if I can’t get rid of the circle I can just move the camera in, but I want to be able to have the light not gray out everything

[unreal ember]

hey does someone know what this causes?

[deft fiber]

Your meshes lack lightmap UVs if you find them being generated with identical or repeated lightmaps

[edgy yacht]

Do mixed lights bake for static objects, and use realtime for non-static objects?

Are they more performant then?

[sleek notch]

Hey i don’t know why i didn’t ask here straight away, so i made a day and night cycle which just rotates the directional light along the x axis over time, one thing i noticed was that when its fully dark, the items somehow still get lit from underneeth by the directional light

any fix to that?

like the light is going through my terrain

the mesh

^ also im using auto generate lightning if that makes a difference

[raven flower]

I believe the terrain is only rendered on one side no? the bottom would be the back-face. Light going straight through wouldn't be weird.

[raven flower]

like this: the plane is only visible on one side, therefore the light bleed through it onto the sphere without lighting up the actual plane.

[edgy yacht]

Does anyone know how to fix this with the directional light? I have a reflection probe around the cube but for some reason the directional light still goes through?

[sleek notch]

So i just change the terrains mesh renderer cast shadows to two sided right?

[unreal ember]

aa okay so im very new to this, any suggestions for tutorials or things i could read to learn?

[cinder raven]

Hey people. For some reason, shadows aren't being rendered in my scene view, but they exist in the game view. What's the matter?

[deft fiber]

Your specific problem is that the meshes aren't generating their lightmap UVs which you can search about
These are some good tutorials, but do also read the documentation
https://youtu.be/KJ4fl-KBDR8
https://youtu.be/okYhs6kQ0xw

[deft fiber]

Try the light bulb icon in case lighting is turned off in your scene view

[cinder raven]

It's on

I have lighting, just, not shadows

I've never seen anything like this before

It works in another project, but if I just copy the lighting settings from it I still get no shadows

in scene view, of course. I have them in game view

[unreal ember]

Thanks! i tried the first tutorial from unity you linked and it definitly improved the results

[quartz jetty]

Hey how do i make it where its really dark and the player cant see far but with the flashlight it goes further. This flashlight is being hindered by the unity fog. Is there a way to make it so it doesnt get hindered?
https://gyazo.com/34d8e2d9a2b0ef918339c670a3b6f764

https://gyazo.com/f17795104291a20f3c97b762053b1dc6

without using scripts btw?

[wheat pecan]

hi! i'm making an experimental minecraft clone and i'm getting some really strange lighting with my block textures. it seems to happen when i change the texture filter mode from bilinear to point. i'm using a single texture sheet with each block texture as a 16x16 section in that sheet

[night shell]

sounds like the exact kind of thing you would need scripting/shaders for

fog basically globally obscures anything beyond a certain distance like in your example, if you wanted the light only to reveal what is beyond the fog then you need to make some kind of custom fog solution, where you do fog as normal, but you also (just geuss work here) raymarch a cone shape in the same exact position that your current flashlight is in, and use that to lerp between fog and no fog. so the end result is that areas that are not within that raymarched cone are obscured by fog, anything inside is not

[daring haven]

Not at computer, but could you use separate light layers? (Can you bind fog to some layers and not others?)

Light layers allows some objects to not pick up some lights, so was wondering if useful here too.

[marsh fiber]

this point light gets cut off with a hard line when it shines on to this grass material here. if i take the material off and put a different material on the object then it shines correctly. looking for some help understanding why my grass material is causing this cutoff

with the grass material replaced by a different material

no cutoff

[quartz jetty]

So I'm really dumb, and I realized what I wanna do is make it dark not foggy. So is there a way to make it darker with all the lights in the map in a certain radius while also allowing the radius thing with the flashlight

[little condor]

I've had this happen if the material has the incorrect normal map applied. It should use the OpenGL format and not the DirectX format that is exported by some 3D software.

So if you're material is using a normal map, remove it and see if that is what's causing the issue.

[tight parcel]

whenever i add lighting i get these weird lines on my floor, does anyone know why?

[marsh fiber]

That's got to be it. I used the DirectX format instead of the OpenGL one because I don't know the difference so just picked one. Thank you very much for this tip, going to give it a try in a little bit.

[edgy yacht]

Why does this happen? If I remove the Skybox material it works, but I want the skybox material? I also added my reflection probe in the image. The walls and ground and ceiling are also marked as static

[edgy yacht]

Setting the near plane to 1 fixes the issue, why would that be? I thought that the near plane is supposed to make it worse if I increase that?

[marsh fiber]

I am sad to report this does not seem to the solution 😦

okay so its sort of the issue

if i remove the normal map then the light doesn't get cut off any longer, however, this seriously messes with the material because it drastically changes how it looks specifically in the color department.

[little condor]

Can you take a screenshot of your material settings. Perhaps the normal map is using Object space, rather than Tangent space?

Anyway, it looks like it's something to do with the material, so we'll need details of the settings to see if anything is looking weird.

[marsh fiber]

It's definitely using tangent space. One moment

[marsh fiber]

so marked with the T and the 1/2/3 on top are 4 different planes in blender that are individual objects. The "T" marked one is the "template" object with the "template plains" material on it - this is not actually a concern as I don't use this material in Unity. the 1/2/3 ones are the concern, they are to be used in Unity and are the materials I am having an issue with. These materials each have a slightly different color than each other (doesn't look like it in Blender but its much more pronounced of a difference in Unity) but otherwise have the same setup. The shader you see in the bottom half of this image is pre-baked, I will post the baked half in a moment.

so really the only difference between 1/2/3 is the "pos" value of the right side slider in that ColorRamp component you see there. plains 1 is set to 5, plains 2 is set to 5.5, and plains 3 is set to 6.

but otherwise shaders are exactly the same. from here i bake the materials.

to get this.

notice that on the right side on the material list i switched the material from "plains 1" to "plains 1 baked"

[little condor]

But this blender, the issue would be with Unity, so what is the Unity shader settings? I thought you were just using a Standard shader to be honest.

[marsh fiber]

from there i export each object as an individual .fbx to unity, extract textures, slap in the scene, turn them into prefabs, and assign those prefabs in the inspector to the script that handles creating them when i run the scene.

one second

first some more detail as this may be important. notice the dialogue on the top left after i import the model to unity, it mentions osmething about the normal.

this is the material itself in unity

[little condor]

Ok, so select the normal texture and make sure it's set as Normal map

[marsh fiber]

that it already seems to be

[little condor]

ok, cool.

[marsh fiber]

sorry for all the extra explanation but i just figured if i provide more details that may illuminate the issue

pun not intended.

[little condor]

Well, everything looks ok. Apart from the normal map being in Directx format, I can't think of any other reason for the light cutting off like that. Perhaps try a different normal map as a test to see if that fixes the lighting and keeps the colours the same?

[marsh fiber]

I actually switched it over to the OpenGL format that came with the texture.

this is the texture source and is directly whats on the object marked "T" in the first image https://ambientcg.com/view?id=Grass004

and is the basis for 1/2/3 with just the variation in the color

[little condor]

I'll try it out quickly. One sec.

[marsh fiber]

thank you much

maybe i just need to create the material directly in unity and not in blender but i wouldnt know how to get that color variation going there that alters the color texture.

never made materials directly in unity before.

and btw i used the 1k .jpg option.

[little condor]

I couldn't replicate the issue. On the left is a material using the DX normal map, on the right is a copy but using the OpenGl. They both look fine to me, which in itself is odd.

I tried both the png and jpeg textures and it didn't affect anything.

Sorry, I'm stumped 🤨

[marsh fiber]

did you make the material directly in unity?

or did you make it in blender, expport, etc

[little condor]

Yes, just created a standard lit material and added the~~ albedo~~ base and normal textures.

[marsh fiber]

Using URP or built in?

or would that even really matter?

so i just did the same as you and yeah it works. when i swap out the color that comes with the source with the color that i export from blender it still works but the color does not look like what it should on the end resulting objects its way too light in color.

im guessing the normal has something to do with how dark the color comes out.

and also the normal in the source isn't the same size as the normal in the blender export as i scale things to 2x to make the grass look smaller.

[iron gyro]

hello guys, i really need to your help. I will show few hours later my game demo but urp lights have a problem on terrain. looks like a terrain is divided into squares

[deft fiber]

Post only to one relevant channel, please

[iron gyro]

i'm sorry

[tawny skiff]

Hello, I bought VR/Metaverse Space Station on unity marketplace and I have a small problem I can't put the ship textures. I have the last version of unity when I try to put the reflections probs in the rooms of the ship it takes the colors of the base ship which is pink and not the relfexion probe that you made. Can you help me please, thank you very much.

[slate latch]

Anyone know why the ui for my lights seems to be locked? If I change the light source to a baked light I can change the intensity and what not, but when I change it to a realtime point light all the properties in the ui stop working, I can type in the intensity of the light and it resets to its previous value...

This light is in the root in the heirachy, it's not within a prefab or anything, it started happening recently, starting to wonder if it's because I upgraded to the 2022.2.0b16 beta

[deft fiber]

If your shaders are pink, that implies they are incompatible with your active render pipeline or that there's a shader error

[tawny skiff]

I don't think it's due to that because I can change the color as I want

[deft fiber]

Then I don't understand the question

[tawny skiff]

I bought an asset in the marketplace and there was a scene already made it's a ship except that there are no textures but there are reflections except that when I try to project the light in the room it does not work

[slate latch]

Anyone know why the ui for my lights

[chilly kettle]

is there a reason, why the scaling of my crystal is not 1 like i set it there?

The Terrain is correct

[deft fiber]

Is the mesh renderer gameobject's scale also 1? The "scale in lightmap" is another multiplier to the scale calculation, not an absolute scale

[chilly kettle]

No.. its 0.34532 also...
i see, that this is the same 😮

is this also the reason why i have overlapping lightmap uvs there?

[deft fiber]

That alone shouldn't cause UV overlap, but I guess it might if some objects have wildly large scale that's taking up space from other meshes
The more common causes are the lack of lightmap UVs altogether, and problems with margins

[deft fiber]

The overlapping areas here are so large I'd be surprised if it's not because lack of lightmap UV generation

[chilly kettle]

it should be okay

im baking with 20 texels

[deft fiber]

Then I'm not sure
I'd look at the whole lightmap using one of the views that shows you where everything is as wireframe to see what the overlaps are and to spot anything suspicious (shaped, sized or located weirdly)

[chilly kettle]

dont know why its not using the space of the lightmap :/

[deft fiber]

I don't know why it sometimes does that
Still, for whatever reason there's too many islands compared to required margins, relative to the space it's using

[chilly kettle]

yeah, it should take more space for placing the islands correctly

for other objects, it does perfectly 😄

[deft fiber]

That doesn't look right to me either, the margins take up more space than the islands

[chilly kettle]

yes, there its to big.. xD

[chilly kettle]

scaled the crystal from 0.34 to 1 now.. Now its not having any overlapping anymore

[chilly kettle]

But its 3 times to big for my scene 😄

[night shell]

if its not scaling to 1 then its likely that the object has reached its max size in the atlas

[winter cave]

Why do I always get these horrible artifacts when baking?

This happens in URP and HDRP

[winter cave]

Is it normal for objects to turn entirely black when a lightmapped light is turned off?

When I turn off the light, some but not all objects turn pure black

nvm, material was weird

[chilly kettle]

What means max size? i have massive space in the lightmap, and like you can see in my Screenshot, i want it to have scale 1.. but it has scale 0.34 :/

[chilly kettle]

when this happens, its not baked light

[tawny skiff]

Hi, how do I project in the room what is in the sphere? Thanks in advance

[night shell]

because like I said, its possible that the object has reached its maximum size in the atlas, it might appear to have space in the atlas but if you are changing the scale in the lightmap and the object scale doesn't change then its as big as it can be. This can be a case if the object has improper lightmap UVs with too many uvs elements, or in your lightmap you might have say too many small objects just taking up space in the lightmaps.

its worth noting also that the field there I think actually works like a multiplier instead of a definitive number.

I don't think you can make an object ever 1.0 size in a lightmap, as depending on the scene it can also be very inefficent because that means for every object in your scene it will need to have a unique lightmap because at the requested scale you want it at, means there is no room in the lightmap atlas to fit in any more objects to save on space/memory. Lightmap atlases always have multiple objects within them at different scales depending on how large they are in the scene

||(someone correct me if I'm wrong on this please)||

[fringe notch]

My light seems to overlap, when one is on, the other one is off, anyone know why?

[night shell]

can you elaborate more? provide screenshots if you can

[fringe notch]

when i move in the scene they alternate

they interfere

[night shell]

im not sure how internally unity computes this (again if anyone knows please correct me if im wrong), but say you are baking lightmaps at a max resolution of 1024, and you are baking a world with say mabye 5000 objects. with unity defaults it might only bake mabye 10 - 15 lightmaps. Thats basically 5000 objects fit into 10 - 15 1024x1024 atlas. If you try to increase the size of objects in their lightmap that means objects will have to be moved to other new lightmaps because a new one has to be allocated. And objects at their biggest scale i.e. 1.0 means that for that single object it has a 1024 lightmap for itself. for 5000 objects in a scene where if their set scale was 1 in an atlas that would mean 5000 1024x1024 lightmaps...

[night shell]

I take it these are realtime lights yeah?

and light overlapping as in one light appears to turn off or flicker when a new light is moved into an area/scene?

[fringe notch]

yes, right on your money

[night shell]

well that tells me that you've reached the limit of the amount of realtime lights you can have lighting an object

probably because your on forward rendering

if you don't know what I mean I can translate that to english lol

but if im right on the money then that is what that means

[fringe notch]

i do kind of know what that is

i dont remember how to change it tho

[night shell]

are you using the unity built in pipeline? or are you using urp?

[fringe notch]

urp

[night shell]

its always urp 😛 but anyways

there are ways to fix it

the quickest and fastest way is to go into the URP settings asset you have and increase the per pixel light object limit

[fringe notch]

oh? hold on then i can try

[fringe notch]

but will this permanently fix it?

[night shell]

it depends

which is where im gonna get into the other fixes, but also explain some notes that you'll need to be weary of

your running into that issue because there are too many lights per object in your scene

[shadow horizon]

Why would this happen? Some of my objects are not receiving lighting data at all (The Door) (I removed my bake data to verify, so now everything is real-time)

[night shell]

likely im assuming in this case that your level there is a single mesh

and if you read the settings carefully it says in URP you can only have a set amount of lights per object

any more than that and it starts to get expensive

[fringe notch]

ill try that setting rq hold on

[night shell]

there are a couple of ways to fix it

1. is you can actually split up your level mesh basically into different objects

each room can be its own object

instead of an entire level being one mesh, you'll hit the limit on that much quicker

so splitting it up into different meshes and objects is one way also to get around it

but the other and most common and recomended way is to use baked lighting

[fringe notch]

i was thinking of baked tbh

is there a quick way to switch or is there a procedure

[night shell]

a quick way to what

[fringe notch]

to switch from realtime to baked

do i literally just change it in the light obj

[night shell]

yeah that can do it but that won't immedieatly change the look of it because the scene then has to be baked

think of the mode as "marker"

[fringe notch]

how long does it take to render (i guess would be the right word)

[night shell]

depends

[fringe notch]

/generate

usually

its a small map

[night shell]

well it depends on alot of things, your computer hardware but also how large your scene is

[fringe notch]

ooh yeah right

[night shell]

if its a small map, but you have a powerful PC it might take a minute or more to bake depending on the lightmapping settings that you set

but if its a small map and you have a crappy PC it could take a while

[fringe notch]

so i'd just switch in the object

[night shell]

I wish I could give a definitive answer but it just depends on alot of things

[fringe notch]

no worries

but is there a way to switch all lights to baked at once

[night shell]

there isnt a dedicated switch but there is a way to do something similar

in your scene hiearchy tab you can do a search

t:Light

and then select all the lights

and change the mode to baked

[fringe notch]

ooooh

thats neat

and is that all?

no other step?

[night shell]

alright gimme a second, Im assuming that you haven't lightmapped before so I'll send some tutorials your way

https://www.youtube.com/watch?v=okYhs6kQ0xw

[fringe notch]

i havent really

ooo

[night shell]

i've also written a tutorial for a company I work for on lightmapping a world so this might be of additional help as well - https://sdk.massiveloop.com/tutorials/lightingTutorial.html

[fringe notch]

i'll check them out

thank you

the baked generated in .1 sec lol

[night shell]

you also need to when changing lights to baked

you need to have objects that are static

or contribute GI

in the static flags

[fringe notch]

im not sure what that is actually

[night shell]

whoops sent in the wrong order

but you can set the contribute GI flag (or just checkmark the entire object as static) which means that the object will be marked for "baking"

[fringe notch]

ahhh

could i select every object and do that?

[fringe notch]

or would that be bad?

[night shell]

hmm?

why would that be bad?

ohhh

yes

it can be bad

when it comes to lightmapping generally you only bake objects that are static or don't move at all

for example your level geometry would be static

but dynamic objects like doors or anything interactable would not be static

[fringe notch]

what would happen if i baked them?

or marked them

[night shell]

if you marked then and then baked them, they would have lighting but the problem is when the object moves or gets destroyed then the lighting is going to be the exact same on the object, almost as if its stuck in place. not only that on other surfaces there will still be shadows inplace of where that object used to be

[fringe notch]

i see

[night shell]

i'll just show what I mean visually so you understand

[fringe notch]

which lighting is generally the best looking in your opinion?

[night shell]

both

you combine realtime lighting with baked lighting

[fringe notch]

ooh

[night shell]

heres a lightmapped scene

and I have this stack of objects baked as well

if these objects were say dynamic physics props and I could move them

then you'll see these issues when these objects are moved out of place

or if I rotate the stack also

you can see the lighting is literally stuck on it

[fringe notch]

ahhh

i see

[night shell]

thats why you only bake objects that don't move

now I actually talk about this in the lighting tutorial I wrote here

https://sdk.massiveloop.com/tutorials/lightingTutorial.html

[fringe notch]

also, is there a way to make light not pass through walls?

[night shell]

so for an objects like the stack

you don't mark then contribute GI if they are dynamic and move

which that creates a problem later on which needs to be solved

case and point here

these clothing items here are not included in the bake for various reasons and they stick out

the positive is that one they don't mess up the lighting of the overall scene, but of cours they don't blend in

when you get more into lightmapping

this is where something like lightprobes come in handy

and they can be used to blend your dynamic objects back into the scene

these yellow balls are light probes

[fringe notch]

actually i have a similar situation in my game

hold on

[arctic isle]

@night shell @fringe notch can you use a thread?

[night shell]

sure yeah, my bad

[arctic isle]

No worries 😄

[night shell]

lightmapping

can you join the thread @fringe notch

don't really use threads so not sure how they work i ndiscord

[fringe notch]

sure

[loud pecan]

For some reason the compiled version of my game does not use the correct lighting.
In the editor (first image) the "wall/ground" tiles are lighted by a global light in a darkish purple.
The compiled version (second image) seems to completely ignore this and gives it bright color (I guess unlit?)

[deft fiber]

I recall when building to WebGL if there was ambiguity with sorting (gameobjects with the exact same sort depth), the build ended up sorting them inconsistently
It might be possible that happens with 2D lights as well as other build targets, but I'm not sure

[polar wadi]

Hi, could anybody tell me why some walls are fully lightened wile others are not ? You can see the light coming from the windows and casting shadows properly, same with furniture. But I can't figure out why the opposite walls are fully lightened as if outdoor? There is an outer face which is supposed to block the light

another example here. Wall fully lightened while it shouldn;t

[deft fiber]

Looks like the wall is shadowed from the directional light, but lit by what I assume to be a HDRi skybox or another shadowless directional light

[polar wadi]

Ok, I'll have to check. I'm using Enviro for the Skybox and lighting and there are a ton of options making it tricky to debug.

For the HDRi skybox, why would it make walls so flat but not the floor ?

[deft fiber]

If it has a bright area near the horizon, possibly simulating a sun or a sunset, the floors (and the closer wall) would be angled mostly perpendicular to it

Rough surfaces appear brighter when facing a source of light

[polar wadi]

OK thanks for your explanation, I'll check my lights and skybox then