archived-lighting

[night shell]

or potentially texel invalidity

but also I can see that the resolution is really low

[fervent swift]

Thanks @night shell - turns out there was a hidden object in front of it

[night shell]

ah ok

[fervent swift]

Are hidden objects baked into lightmaps?

i guess^

[night shell]

hmm technically no

but also I was going to suggest since the resolution of your lightmap on the wall is really low

I would not mark your picture frames to be static

or to lightmap them

since they appear to small to affect the lighting of the wall drastically

[fervent swift]

Thank you @night shell that makes sense!

[deft fiber]

Depends what you mean by "hidden"
In Unity it refers just to hidden from scene view in the hierarchy

[slow sierra]

anyone know how to get right of that ugly lightmap noise?

[night shell]

Yes, use denoising

[slow sierra]

how?

[night shell]

Send screenshota

[slow sierra]

ok

cuz my lightmaps look terrible rn

when i used realtime they were good but not baked

but realtime i got like 50 fps

also how do i use reflection probes correctly

[night shell]

one step at a time first of all

[slow sierra]

okay

[night shell]

as for the lightmap noise

looks like low sample counts

what settings are you using for your lightmapping?

[slow sierra]

i tried using the advanced filtering thing but i think it didnt do anything

[night shell]

use open image denoise

[slow sierra]

where's that sorry

[night shell]

denoiser options

where it says optix

[slow sierra]

oh ok

is that all?

[night shell]

rebake

beyond that I don't see an awful alot of distracting noise truth to be told

[slow sierra]

yeah

[night shell]

other than the obvious lightmap UV seams

[slow sierra]

yeah how do i get rid of those

oh wait i have an idea

i just merged the two objects

[night shell]

the meshes actually need to be merged

not just a simple combine through grouping

[slow sierra]

it's a probuilder thing

it should do that i think

so about reflection probes

mine are pretty much fine just I have a couple around my scene

Is there way to make them fade into eachother in a way?

[night shell]

Yes

If you are using deferred

What render pipeline?

[slow sierra]

universal

[night shell]

Oof, universal is strictly forward for the moment as far as i know

[slow sierra]

oh okay

[night shell]

So when it comes to blending reflection probes your a bit out of luck

The best way is to simply split up objects

[slow sierra]

It's only because I have a probe inside a building and when i step outside of it the colours of my pistol just snap to like red and green yk

red and green being the ones outside

Ok I rebaked

looks better

Alright well thanks a lot for your help then :)

[paper maple]

I am not sure what lighting it is, it might be the spotlight from the street lights as I have turned off all other light soruce besides the street lights

[reef oracle]

does anyone know why my shadows look so strange?

[tardy jay]

Heyooo. With a point light, I keep getting these hideous smears on flat geometry. Would anyone happen to know what may be causing them, or how I can go about making the gradient more gradual? Thanks in advance!
https://i.imgur.com/JOnraAw.png

[charred moth]

you can try disabling the lightmap compression and see if it works

[little condor]

On HDRP there is a 'Dithering' option on the Camera > Rendering component. That can help reduce those bands.

[deft fiber]

URP as well

[icy tundra]

I just created a new scene with the 2022 'Standard URP' template and shadows don't seem to work properly on directional lights...

Some obvious setting I'm missing?

huh. So now I look in my other scene that I know was previously working and distant light shadows are broken there too. WTF.

[night shell]

Check your camera clipping distance

If its too high that can usually be the issue

[stoic cave]

I struggle a lot with understanding why some lights are behind some objects. In this case I tested using a light source as a mouse cursor and the light is behind the wall but it's not behind the platform. Why is it behind the wall? I see no difference in the settings

[icy tundra]

Turns out it was the accurate g buffer normals setting in the renderer.

[north echo]

This is the first time that I've tried using baked lightmaps, and they don't seem to be working. I've set all my environment geometry to static, I've tried baking the lightmap several times, and I've tried cleaning the GI cache. When I look at the lightmap texture, it does seem to have stuff drawn on it, but nothing is being lit. If you have any ideas or need more information, then please let me know.

Not sure if this helps, but here's a screenshot of how most of my MeshRenderers are set up, and I screenshot of the scene lighting settings.

[arctic isle]

Did you check the 'Generate Lightmap UVs' box in the mesh importer settings for your geometry?

[north echo]

Sorry I stepped away for a bit and didn't see this. All of the geometry that I'm using is just the default objects like cubes and planes. I assumed that you don't have to generate anything for them.

[arctic isle]

You don't, so that's good. Your lightmaps seem a quite dark, are your lights bright enough and in reasonable positions?

[north echo]

I'm not really sure. They light up the environment when I enable realtime lighting.

When I add new lights to the scene, they interact with the environment, but they are using realtime lighting. As soon as I change them to baked and then bake the lightmaps, they stop lighting things.

[north echo]

Oh hang on. I forgot to set the lights to static. I'm not sure if that will fix it, but it is taking a lot longer to bake the lightmaps, so I'm guessing somethings working. I'll let you know when it's done baking if that fixes it.

[north echo]

Hmm, it's still not working. Setting the lights to static had no effect.

[reef oracle]

anyone know why my shadows look like this?

[hoary fossil]

Old screen shot I thought I'd share. One of my first uses of raytracing in Unity.

[north echo]

I'm not sure why, but apparently, the problem was that my material was completely metallic. I'm not sure why that stopped the lightmap from lighting it, but dialing back the metallicness a bit fixed it.

[arctic isle]

That makes sense 🙂
Baked lighting in lightmap and light probes is only diffuse light (aka not 'reflective' or specular light) so it makes sense that turning down the metallic property on the material would help. Place baked reflection probes if you want (more) accurate reflections in your scene.

[stoic cave]

any ideas?

[arctic isle]

maybe it has to do with the ordering of the sprite layers / which layers are affected by which lights

[stoic cave]

but both objects have the same layer and order

[arctic isle]

I am not sure how the 'Default' sorting layer works, but usually in 2D I've had better luck with defining different sorting layers for foreground and background objects

[stoic cave]

uuh it was the material

[arctic isle]

Were you using an unlit shader/material?

[stoic cave]

yeah I think I did

[arctic isle]

Yep, that'll do it 😄

[stoic cave]

oof xD

but how do you make a lightsource draw on top of a canvas?

I guess they need a lit material as well

[icy tundra]

Is there a way(In URP) to get it to not cull the shadows of terrain details that are offscreen?

[deft fiber]

I think you're meant to place meshes that need to cast off screen shadows as trees rather than as details

I never found a way to control how or when exactly Terrain culls meshes or their shadow casters

[icy tundra]

fun

[deft fiber]

Then I kinda gave up on using the Terrain since it seems like such a rigid black box

[icy tundra]

In this case I'm working with someone else who made a very lovely map and I'm trying to get it to work

[mental pawn]

Heya, any advice for getting cleaner lightmaps when they are all splotchy?

I've tried adjusting:
Lightmap Resolution
Direct, Indirect and Environment samples
Filtering: none, auto, advanced
Ambient Occlusion
Trying different light types

Only way I'm able to fix this is to bring the map into an image editor and blur the areas into some sort of smoothness.

[night shell]

those are texel validity issues @mental pawn

that is caused when your geometry has exposed backfaces

either fix the mesh, or enable double sided GI property on the material

[teal vale]

hello friends, a few days ago I was making a game. then one problem arose, namely when making lightning for car headlights. on the right Spotlight looks like it's cut off. does anyone know how to fix it?

[arctic isle]

I think the quickest way to fix this is to make the curtains double-sided as @night shell hints at.

[mental pawn]

Thanks @night shell and @arctic isle this has been driving me nuts for a while! Much cleaner!

[deft fiber]

You can find almost all possible issues described here
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/
Be driven to nuts no more

[mental pawn]

bookmarking for future reference!

[surreal abyss]

i am getting a lighting system setup for my 2d platformer, and im having an issue where i can see things through walls, i have a global light to make everything dark, and a spotlight eminating from the character, what should i do

i used a global light 2d so point light wont work

and how come stuff like this happens, where the background is hidden properly but items arent

[quaint coyote]

Wow! looks so realistic. Raytracing with HDRP?

[little condor]

Does that ground material use a Normal map? If it does, try disabling it and see if that fixes the issue.

Using the wrong type of Normal map can do this to lighting.

[deft fiber]

@teal vale The last time I saw this there were clues that it might've been a mesh normals issue

But it was inconclusive

[surreal abyss]

could anyone help with thios

[hoary fossil]

Yes!

[gritty fox]

best way to optimise a scene with just alot of realtime pointlights in an interior scene? They arent all visible at once because theres alotta walls but baked lighting doesnt seem to like certain scaling of UVs and messes everything up

[sly fox]

Do they all use shadows, because that will destroy your performance

[deft fiber]

If you let Unity generate lightmaps for your meshes the scaling issue should be eliminated

Light cost (and maximum limits) in forward rendering are per mesh per light in the light's range

[gritty fox]

Yup. Interior scene

[gritty fox]

Thank you

[wheat yew]

how do i uniformly light up this restaurant

any ideas

[sly fox]

Directional Light?

Or Area Light, but that's for baked only

[teal vale]

ok

thankyou its fixed

[limber delta]

Depends on what kind of look you want, you could for example use the unlit shader and everything would be uniformly lit. No need for lights either.

I'm talking about something like this

[wheat yew]

hmmm

ill try that for now

[limber delta]

Again, almost everything is possible 🙂 but for a uniformly lit scene I'd try unlit, it's cheap.

(correction above, it's supposed to be the unlit shader, not material)

[kind kraken]

Why the light is not "homogeneus"? You can see that the point light rays colors are not smooth

I am using URP and I have enabled HDR in my Render Pipeline

[night shell]

looks like banding

and is that fog? volumetrics? whats going on there

[kind kraken]

there are some volumetric spot lights

I found the shaders on github

[night shell]

link to these shaders?

[kind kraken]

lemme send

[night shell]

so its volumetric lighting that you have in that scene

[kind kraken]

but i guess that the shaders are not the problem

[night shell]

with that I think its safe to say the banding that yours seeing there is actually the raymarching samples

[kind kraken]

https://github.com/bladesero/Volumetrics_URP

[night shell]

from the volumetric lighting, if it is indeed that

yep most likely

[kind kraken]

oh

i just solved by enabling dithering on the camera

[night shell]

that would also help

[deft fiber]

was about to say that

Dithering smudges the bands between the color tones, creating the illusion of smoothness

[night shell]

it was either color banding, or likely just the volumetrics in that not being jittered with any kind of noise

because it could also be caused by that

[deft fiber]

This the volumetric light solution linked above?

[night shell]

nah this is my solution, but demonstrating the issue I was describing

[deft fiber]

Blue noise working wonders there it looks like

[night shell]

yep

someones got an eye, suprised you caught that

[deft fiber]

I just noticed the camera dithering setting also works on non-lighting things like shader gradients which is really cool

[surreal abyss]

How would I get shadows to go OVER the other things?

[gritty fox]

how is this done?

[little condor]

Select the model that you imported into Unity, then in the Inspector on the Model tab, select 'Generate Lightmap UVs' and hit apply.

[gritty fox]

thank you will try it now

[teal vale]

hello everyone, I made a spotlight on the mainmenu then I enlarged the shape. then as seen in Game Unity it looks smoother and doesn't really look like a disc. but when I build the game it turns into a disk, does anyone know how to fix that?

[forest rose]

What reasons could there be for me to have this bleaching?

[deft fiber]

It looks most like a lightmap compression artifact to me

[forest rose]

I think I have light map compression set to zero. Is that the setting I’m looking at?

[deft fiber]

Changing it on the lightmapping settings won't update the textures until another bake, but changing it on the lightmap texture asset import settings will

I'm not totally sure it is compression but that's my guess

[forest rose]

Anything from here I need to set?

[deft fiber]

No, it's not handled in model import settings
Rather either texture import settings or lightmapper settings

[forest rose]

So here?

[deft fiber]

Yes, as I mentioned if you reduce compression from there after bake, the lightmap won't update until another bake
But if you reduce it in the baked lightmap texture asset itself, it will update

[forest rose]

I don;t have any compression on and upped the resolution so what else could I change

or max lightmap size rather

[deft fiber]

It's possible that the changed compression is not reflected on the lightmap yet, but it's also possible that the issue is something else entirely
It's a bit hard to see what texture exactly the artefacting is on

[forest rose]

Well that isn't an issue anymore specifically but I think a similar issue that is linked can be seen here if you think it is related

[deft fiber]

In addition to compression it could also be a denoising related proble, texel invalidity or UV overlap

[empty condor]

Hey there, I've noticed (what I'm pretty sure is) some really weird behavior in the 2D lighting system, and I can't seem to find a solution. I'm using an isometric Z as Y tileset, and the tiles have an accompanying normal for lighting direction. Because of this, I have to use the 'normal maps' option of the Light 2D component. However, enabling this option seems to change the shape of the light to this cardiod-ish shape. I can't rotate it. no matter what options I select, I cannot get any section of the map with an 'up' normal to be lit above the center of the light. However, it still lights walls which are further away and have Left and Right normals. It looks really weird. Is this intended behavior, on account of the light only lighting things with the up normal if the light is physically above it? Either way, what can I do to get lighting that looks normal (pun intended)?

[deft fiber]

This shape typically occurs on normal maps that aren't set as type: normal map in their import settings

[quaint coyote]

Incredible! How did you render that? with cinematic? I would be learnt to see how you rendered that with raytracing.

[forest rose]

I've found that replacing all the walls and floors in Blender tends to help for some reason

[forest rose]

Don't think it's solved the issues anymore

[deft fiber]

It's important to pinpoint what the issue is
Did you check for texel invalidity and UV overlap?

Those are the easiest to rule out

[forest rose]

There is texel validity in the level but it's not near areas where it happens. There is also some infrequencies in lightmap resolution but not sure that would affect it right?

[west cipher]

URP realtime lights keeps popping on/off when i approach or get far of them

[deft fiber]

Then it must be something else

[deft fiber]

Hitting light limit per mesh most likely

[forest rose]

I saw someone had this issue before and the solutiuon was to remake the lighting, I did that ahd it's much better now 🙂

[upper fable]

That image doesnt tell much but I assume its issue with per pixel light count. Have you set it to 8 (max value) in URP asset already?

[west cipher]

Its 8, never changed it

[deft fiber]

4 is the default if you never changed it
You can also slice meshes into smaller segments and limit light ranges
Deferred and Forward+ rendering paths are also options to consider

[solar cosmos]

Does somebody know why is the ground not reciving light untill I will turn intensity up past certain value?

[safe fox]

try increasing the range and see if that helps

sometimes pointlights are behaving weird for me too and then i just increase the range and it works for no reason

[quaint coyote]

How can I get Probe Volumes?

Im using Unity 2021.3 LTS

[arctic isle]

They're only available in HDRP

[quaint coyote]

I see

[edgy aurora]

Hi, I need help from someone experienced with baking lights in Unity. I have a project, which is a horror-like game set in an office building. Our lights need to be able turn on/off, which is why I went with a mixed lighting setup. However, whatever I do, I can't seem to get the results I was expecting. On top of that, we are a tile-based setup for level design, and we are getting weird seams between the tiles in our roof.
Here's a screenshot showing how it looks right now:

how would I go about improving this even further? (without adding post processing)

also on a side note, baking lights seems to take way too long (over 10 minutes on a macbook pro m2 on low settings)

[arctic isle]

Make sure you're using the Apple Silicon (arm64) Editor and the GPU Lightmapper. Post your settings if you're still getting bad performance.

[arctic isle]

For this:

• Turn off ambient occlusion
• Consolidate your tiles in the ceiling to one mesh
• Increase the number of indirect samples
• Change to the OpenImageDenoise denoiser if you haven't already

For low-light environments, allowing a few more bounces may also be necessary

[deft fiber]

Mixed lights do not by themselves allow baked lights to be turned on and off
You'd rather use realtime only light sources for the ones that need to turn off, or use a script to swap the baked lightmap texture to another turned off version or to a blank black one

Mixed lights are for illuminating both dynamic and static objects, and for using the accuracy of realtime shadows for direct lighting for static objects

[arctic isle]

Ah yeah I guess also this but I kind of assumed it worked as you expected it
But if you need things to go completely dark, you need realtime gi or just fully realtime lights

[edgy aurora]

I'll check out these suggestions. Thanks!

[deft fiber]

@arctic isle Do you know if the new LightBaker v1.0 is different enough from Progressive Lightmapper that it would require its own specific troubleshooting guides and processes?

[arctic isle]

Nope, same user-facing output.

[upper fable]

Seems like you are hitting the per pixel light count. I think the intensity defines which lights are taken into account when the limit is exceeded so you must increase the per pixel light count enough. Deferred and Forward+ render paths are also something to take into consideration

[past forge]

Hello!
I have an HDRP scene with a global volume which handles things like exposure and indirect lighting, but for indoor sections I want to use a local volume in order to make things darker and have lights be visible during daytime. However, after setting up my indoor volume to my liking, the player arms continue to reflect the exterior light from the sun, only with much lower exposure. Why do some objects play nice with the local volume and others not, and how would I go about fixing this red:ish glow?
Thank you in advance!

[solar cosmos]

It seems like the pixel light count is the case here. Do you know any way around it, since from what I can see I already hit the maximum on Per Object Limit

[night shell]

any lads in here familiar with bakery?

I've been using unity lightmapper for years and am intimately familiar with it, but when it comes to bakery is it actually more performant and better than the progressive when it comes baking larger scenes?

especially in regards to memory management?

I could be baking a scene with 2000 lightmapped objects and easily run out of memory when I step up the max atlas resolution to 2048 or 4096 even on an RTX 3080

[arctic isle]

It depends. On RTX hardware / high-end NVIDIA cards Bakery is faster.

[night shell]

oh I know performance wise it would certainly outclass the progressive GPU at the moment especially on an RTX card, but I'm just curious also if its better in regards to memory management

[arctic isle]

In terms of memory management, it really depends on certain settings (like lightmap tiling) which are common to both.

Bakery has those settings exposed, we exposed them in 2023.1 for GPULM

The memory pressure in either case has to do with the size of the buffers you're allocating and passing to the GPU, there may be some discrepancy between the two but I wouldn't expect huge differences.

With tiling, we're splitting up each lightmap into smaller tiles and passing them to the GPU one-by-one so they can fit into VRAM. For 2K or 4K lightmaps that can of course create some huge allocations, depending on your Anti-aliasing multiplier in the lightmap parameters. If you have it set to 2 it will allocate 4 times the number of texels, for 4 it's 16 🙂 (numbers depending on version, we cleaned up recently)

[night shell]

oh yeah I know about the anti aliasing trick

I usually set it to 1 to turn it off effectively just to maximize memory

but even then usually it isnt enough sadly

so I suppose the answer then is basically no

for bakery that is, being better for memory

[arctic isle]

There are some scenes that won't fit on a GPU sadly. If Bakery can do it then I'd be surprised. That said, I don't have a lot of experience with it, so not sure. I know that Bakery is doing some OS-level tricks to maximize GPU usage, not sure if that applies.

[rapid tree]

my screenshots keep appearing super dark in hdrp, im thinking its an HDRP / lighting issue.. looks okay in scene, but not in screenshot. any idea what might cause this?

the screenshot is being created by a script and its using rendertexture

[frozen valley]

do someone know how to fix this lightings issues

[snow pollen]

Does anyone know if i install bakery to a project, then bake some lighting, then delete bakery that it keeps my baked textures and lighting?

[unique prism]

Please help

[slate ocean]

I have a quick question on Lighting. Unity recently posted their GDC talk on their new Adaptive Light Probe Volumes. Which is pretty awesome. In their example they show a comparison between that and the old Light Probe Group:

The example they showed on the left is a problem I've run into numerous times and I've never found a good looking solution for it. For those like me that are using 2021 LTS, how would you solve the issue in the first screenshot exactly? Is there simply no good solution to it?

[night shell]

you would use probe anchors

so manually overriding where the objects are sampling the probes from, and picking from spots that look the best versus what it picked automatically

the problem of course is that if you have alot of objects in your scene, that is alot of manual labor that you will have to do

LPPVs are also another way to help with that

[slate ocean]

For the entirety of the truck, yes?

[night shell]

sort of yes, also in that screenshot only certain parts of the truck

I can tell it has some seperate parts to it

but yes essentially

for large objects though unity already has LPPV

which would allow you to sample probes from multiple areas giving you a much better result

but the problem with LPPV is that its per object

[slate ocean]

LPPV is only available in HDRP

[night shell]

just like light probes are also per object

[night shell]

wrong

[slate ocean]

Really?

[night shell]

yes

unity has had them for a LONG time

light probe proxy volumes

those are pretty much what your APVs are, except the difference is that its more manual, and also is per object just like light probes usually are

and are definetly more expensive

especially when using in bulk

but yeah unity has had LPPVs for a long time now, since 5.4

[slate ocean]

Sorry, what I should have said was it's not available in URP

[night shell]

ah, yeah its not in URP you'd be right about that

but it is avaliable in the built in pipeline

[slate ocean]

I haven't used built-in render pipeline in a long time

I tend to stick to URP and HDRP

[night shell]

there is a reason I still stick with BIP rather than URP or even HDRP lmao

URP for a long time didn't have feature parity with BIP

and in some cases still doesnt

[slate ocean]

Yeah, definitely lacking in some areas haha

In the case of URP, I've been using Bakery to solve that specific issue like the truck example

But it's quite annoying to setup and get right

[night shell]

yep, so I geuss back to your question the only solution really is probe anchors

to manually pick pots where you sample lighting for objects

[slate ocean]

Right, okay. That's something I can look more into. Thank you

[ivory kiln]

can someone tell me why my shadows look like that?

[limber delta]

Do you have any exposed back faces?

[deft fiber]

Anchoring is practically an option only if the mesh is static
In which case I'd consider baking lightmaps for it for a similar (or better) lighting effect, assuming its UVs and geometry allow for it

URP will get APVs in 2022.3. I think

They're capable of a lot more than BiRP's LPPVs

[ivory kiln]

they are normal cubes, what do you mean by exposed back faces?

[slate ocean]

Wait, does it not work with dynamic objects?

[ivory kiln]

thats another screenshot. i dont really know much about lighting, but i want the shadow to appear like orthographic on the floor

[deft fiber]

Changing the probe anchor points changes the point where the probes are sampled
If you move the point for a very specific appearance in lighting, it will only be valid if the mesh doesn't move

[slate ocean]

Right, I see. That's better than nothing still I suppose

[deft fiber]

A realtime direct light would give you sharply projected shadows
Baked lighting will require some tweaking if you want sharp shadows without any bounce lighting
It looks like your bake in is in progress so what you're seeing is not final

Why are you using a totally ancient Unity editor?

[ivory kiln]

build target : n3ds

also, what about realtime shadows? when i make all realtime and non-static, the shadows disappear.

[lilac stream]

Hey guys, i have a question. Do somebody knows why my scene look like this when i do the scene change?

It should look like this

[deft fiber]

Realtime shadows depend on the graphics quality level supporting them, as well as the object shader supporting them
Assuming 3DS build target does support shadows I'd test in an empty scene with default scenes to try and get them to work, thought they should work out of the box
Baked lightmaps are an entirely different workflow and it's pretty important to study the guides and to practice to get a feel for how it works

[ornate mica]

Hello

I need some guide on RTX ray traced GI

and lightning

I tried to use RTXGI in this scene

but for some reason its really awful in looks

and not looks good at all

not realistic as well

any guides on what should I do?

[deft fiber]

This is a very common problem
You need to generate lighting for each scene from the lighting window (with "baked lightmapping" disabled unless you want to use it specifically)

[subtle nova]

is there a way to change the blend mode of multiple forward lighting passes

trying to clamp the final color of a surface shader to fit into a color ramp, but i don't get the correct results because each final color is added together

[vital halo]

Hey everyone, hoping for some help here:

If I set my lighting (using URP) to realtime, my directional light doesn't bounce, however it does bounce for point and spot lights. I've added images of this above.

Ideally I'm looking for a way to create the third image I have below except in realtime, including updates to the GI and bounce lighting as the sun moves across the sky - Am I running into the limits of my understanding of lighting, the limits of Unity or something else maybe?

Thank you 🙂

[mighty dome]

how do i prevent shadows from looking like this

there are a number of visible lines forming from the edges of the model

[subtle nova]

What could cause a point light to be 'directional' like this?

the background here is drawn with a standard surface shader and currently has no normal map assigned to it

the point light always points to the bottom left when my normal map is empty

turns out the default 'bump' texture is 0.5, 0.5, 1, 1

making a texture that was just pure blue channel and setting the normal to that resolved this

[dreamy locust]

Little new to how lightmaps as an asset work, is it possible I can handcraft a lightmap file that on manual application to a meshrenderer does absolutely nothing?

[lofty spear]

I have a problem that a material changes its color depending on the world position turning magenta

it only happens in the buld

[teal vale]

did anyone know what happend with my lightning?

[deft fiber]

Which render pipeline is it?

[lofty spear]

i managed to find the error it was something that i changed in the render features . I just revert the change and it worked. And it was on the URP. Thx anyways 😁

[deft fiber]

It would be interesting to know what exactly was it

It's proven a very elusive problem!

[lofty spear]

I believe that the additional light were disabled, and the main light had cast shadows off. I may be wrong but it was something in there for sure

and keep in mind that the bug only occurred in the build, in the editor workd good

[deft fiber]

Hm, odd
The best cure I know of is to delete and re-create the Renderer Asset
It sounds like something just gets messed up in there, if the problem doesn't seem to be replicable with any specific setting
Sometimes the whole scene might turn rainbow colors according to world coordinates

[lofty spear]

Just for future problems how can i re-create re-render assets?

[deft fiber]

Somewhere in the create asset menu, among all the rest

[lofty spear]

Okay thx, good to know. I'ts my first time in the server and it proven to be super useful. 🙂

[nova bramble]

Hi. I'm using emissive materials for baked lighting through bakery on unity 2019.4.31f. Is it possible to also use them to create shadows on dynamic objects?

[deft fiber]

No

[nova bramble]

Would there be a way to do so in Unity 2021?

[pastel elbow]

cache do you know any good free light cookies? I haven't rigged up my computer for asset purchases yet

also do cookies work for point lights

yes they do

ok

[soft fulcrum]

even if i know any free i dont remember

[pastel elbow]

ok then

have a good day

[soft fulcrum]

apply that inverse square faloff repo

he links to updated version in the readme

[pastel elbow]

ok then

[soft fulcrum]

i dont understand why its a thing even

there is no linear faloff in reality

[pastel elbow]

probably easier to make linear

it might also be less performance heavy or smth

idk

[soft fulcrum]

probably just a legacy issue

still could set new projects to use squared by default

[night shell]

more performant yes

doesn't look as good, yes

pick your poison

[pastel elbow]

how bad is the performance

bcause im already struggling with it

[night shell]

depends how many realtime lights you have in your scene

[pastel elbow]

many

like at least 27

probably more

[night shell]

it might help a tad bit, but there are ways that would likley be more effective at improving performance in your world rather than just simply adjusting the falloff

my first question though would be does your world have to have these realtime lights?

[pastel elbow]

yes

it is procedural so yes

[night shell]

well that certainly makes things harder

[pastel elbow]

yeah

[night shell]

are they all shadowcasting?

[pastel elbow]

it has to be procedural too

no I turned off the shadows

it was costing performance and it is fine without them

[night shell]

if its a procedual I reckon you should put some time into writing up a simple culling system

[soft fulcrum]

haha

David just went same way i did one to one

[night shell]

wait am I repeating what you've said? lmao

I didn't scroll back and read

[soft fulcrum]

yeah the squared lights was just already after all optimization suggestions

he has default linear which looks bad

[night shell]

linear is fast though

[soft fulcrum]

nah we were in other channel

[night shell]

no sqrt operations

[soft fulcrum]

yeah but culling is what will give perf

[night shell]

true

[soft fulcrum]

the rest is peanuts

[night shell]

that will

[pastel elbow]

there was a culling package you sent me right?

[night shell]

so what about the culling though, is that doable?

[pastel elbow]

should I just use that?

[soft fulcrum]

ive sent you 2, but there are more on github

just search for "unity culling"

i cant vouch for any

i just glance and see if its reasonably finished

does the RP version match, does it require native libraries

[pastel elbow]

ok ill get both of those things in

ill start with the non-linear one

[soft fulcrum]

theres one repo fully written in c++ which im scared to suggest

[night shell]

what kind of procedual world is this for the record, do you have some visual screenshots to show it off?

[soft fulcrum]

the hurdles of multiplatform with native unmaintained libs is too much

[pastel elbow]

ooooh hold on let me mess with the rendering path bcause im using forward rn

[night shell]

that would certainly help

what render pipeline are you in?

because deffered would be the perfect case for this

[soft fulcrum]

1 to 1

[night shell]

are you using urp, hdrp

[soft fulcrum]

are you me?

[night shell]

or built in pipeline

no lmao

[pastel elbow]

forward and deferred

[night shell]

sharing braincells mabye

[pastel elbow]

using standard pipeline

[night shell]

perfect

use deffered

[pastel elbow]

but forward looks nicer

[night shell]

how?

I don't see that much of a difference

ohhh wait

well...

[pastel elbow]

deferred is brighter

although maybe that goes away with the package

ill try it see how it looks

[night shell]

honestly they should be the same

but those differences are mostly small and honestly adjustable

but the real question

is performance better?

[night shell]

sharing braincells

[pastel elbow]

deferred is slightly faster by ~5 fps

ill use that one

[night shell]

yeah beyond that you'll need to put some work into a culling system

given that its procedual you'll have to make your own

unless the ones that @soft fulcrum suggested can work in a procedual context

but the idea is that in your procedual gen you would disable lights that are offscreen, or lights that you are too far from, or are also occluded

[pastel elbow]

culling like stop rendering when something cant be seen right?

[night shell]

basically yes

no reason to bother rendering it if you can't see it

[pastel elbow]

ok so
that sounds really performance heavy

[night shell]

it is not

culling is designed to save performance

granted

[pastel elbow]

like sending raycasts to every object and seeing if they hit

but that seems wrong

[night shell]

I never said anything about raycasts

culling doesn't have to involve raycasts

now

as I was gonna say

culling will have a bit of overhead

but compared to the largest problem you have here with having too many realtime lights

it will have a benefit regardless

culling is your best friend for retaining performance

so invest some time into making one, the general idea is to avoid rendering meshes/lights that you won't see

[pastel elbow]

when you say cull do you literally mean turn off the mesh renderer

for the object

[night shell]

cull as in both turning off mesh renderer and the light

because the lights are your main problem here

[pastel elbow]

or what have you

yeah...

either way I got the performance up to the point I like

[night shell]

my advice, start simple

implement a simple culling on just the lights

[soft fulcrum]

offscreen lights should already be culled, problem is in frustum lights/objects

[night shell]

to where turn off the lights when they are too far

[pastel elbow]

well they already despawn

[soft fulcrum]

occlusion culling should solve that which based on what you need in your game is the biggest perf drain

[night shell]

the problem is that most of those systems involve precomputation regarding how the scene is structured

are the ones you suggested able to work procedually?

[soft fulcrum]

lets see

https://github.com/przemyslawzaworski/Unity-GPU-Based-Occlusion-Culling

https://github.com/MPozek/Unity-Jobs-View-Frustum-Culling

https://github.com/FerzanK/Horus-Unity-Occlusion-Culling

the weird c++ one

[night shell]

hmm if your intending your game to be multi-platform I'd probably avoid the c++ one @pastel elbow

[pastel elbow]

ok

im going to go add some props and stuff

[soft fulcrum]

the first one with pixel test is clever i think ive seen this somewhere

ah right lol the basic rasterization

[night shell]

trying out bakery for the first time

used unity lightmapping for years

[deft fiber]

Enlighten hasn't changed
Reading again what exactly do you mean by "creating shadows on dynamic objects"?

[night shell]

using emissive materials through baked lighting for casting shadows on dynamic objects...

yeah can you clarify?

technically there are a couple things you can do to get you close to that

[nova bramble]

Dynamic objects when only baked receive no shadows from what it looks like, receiving only changes to their lit amount globally across the whole geometry.

I have shader-based AO to ground some dynamic objects more in the world, but that's just a patch on the issue. My current method has limitations.

[night shell]

there are some techniques

you can use SSAO which is a more global ish solution

I suppose also using LPPVs would help

sampling multiple probes, and if your probes are well populated you can certainly get the impression that shadows are being cast

[nova bramble]

For example, dynamic objects with emissive materials don't cast that emission to anything, they contribute nothing. And dynamic objects don't receive any shadows whatsoever, from what it looks like.

I've never worked with LPPVs, but I'll definitely look into it, thanks

But with my current methods, that emission doesn't contribute anything. All shadows cast on the object are shader-based AO.

It just gets more or less lit, as it travels through more or less lit areas of the room.

[night shell]

yeah that dynamic emission is not going to do anything

you'll have to approximate with realtime lights

or if you have the chops, in theory you could write like a screen space solution for tracing emissive light

[night shell]

LPPVs are more for the reciving end though

in receiving light

(light probe proxy volumes)

[nova bramble]

And SSAO is deferred only, right?

[night shell]

no you can use SSAO in forward

[nova bramble]

Ah, Screen Space AO. You mean that I should enable the post-processing effect in my volume?

[night shell]

yes

[soft fulcrum]

bakery has probe volumes, they work

[nova bramble]

It's on already, on multi-scale.

[night shell]

well does that help you achieve what your looking for?

SSAO is a global solution though, so for defined shadows it will never be able to achieve that fully, but it can help give the impression of it

there are ways to get more defined shadows though

but I won't jump ahead just yet

[soft fulcrum]

@nova bramble there is "blob shadows" approach, there is volumetric lights volume approach as well

[nova bramble]

I'm currently using probes, more than enough. But that doesn't do much for real-time changes, other than scaling the lit amount of objects as they pass through. No shadows on or real-time emission of dynamic objects.

I'm open to using Shadowmask, at least kind of. It seems to not interact well with baked lighting.

[night shell]

ok wait

can we circle back a bit

seems like you have multiple questions

can you reiterate what you need help with

and what your trying to achieve

I just wanna make sure there isnt any confusion

[nova bramble]

It breaks in play mode for some reason, I'm not sure why. I get double-vision. In preview, it's entirely fine. Built-game, I don't get double-vision, but I don't build much to test. So I don't know if the AO works at all.

[nova bramble]

The entire room is lit by baked light from emissive materials.

[night shell]

mhm

[nova bramble]

But dynamic objects don't receive any actual interaction with these emissions, they simply get lit more or less instead.

You don't get a strip of light on character's feet, for example.

[night shell]

so basically you want these emissive lights to be treated as actual light sources in that they can also cast shadows for dynamic objects

right?

[nova bramble]

And the roomba doesn't have any emissive light cast to any static object either.

[nova bramble]

Yup. To interact more realistically with objects, preferably, in general.

[nova bramble]

Like this.

But I'm on Unity 2019 still.

So as far as I'm aware, my options are very limited.

[night shell]

not really honestly

but also, this is just an assumptionm from the screenshot

is this for VRChat by any chance?

[nova bramble]

Yup.

That's specifically why.

[night shell]

yeah... that will create a ton of limitations then

[nova bramble]

Yup.

[night shell]

still workable though

[nova bramble]

That's precisely why, I can't even use C# scripts, and have to work with Udon instead, which has a fraction of the functionality.

[night shell]

but first I think its important to understand that emissive materials in unity are not actual "light" sources

sure they worked in a baked lighting context, but they are not really "real" light sources

[nova bramble]

Yeah. Which is unfortunate, I'm used to working in Unreal Engine and with their Lumen, despite the screen-space limitations.

[night shell]

and because of that, that obviously is creating problems that you are currently dealing with

now lets start simple first

the easiest problem that I saw was that you wanted objects

dynamic objects, which have emissive materials

to cast light onto the enviorment yes?

[nova bramble]

Yup.

[night shell]

so again knowing that its VRChat, your options are super limited

your only solution really here is to use realtime lights

to approximate those emissive lights

on those dynamic objects

[soft fulcrum]

bye bye performance

[night shell]

^^^

[deft fiber]

Enlighten to my knowledge doesn't use any light probes, which would be necessary for lighting dynamic objects with emissive light sources
The documentation is pretty lacking for it so I'm not sure

[night shell]

thats the obvious drawback

[night shell]

enlighten actually does use lightprobes

its a bit iffy at times though but it works

[deft fiber]

Its own or the pre-existing ones?

[night shell]

prexisting

[nova bramble]

Yeah, it does use probes, but when I last tried to use Real-Time GI, it also didn't do much for my issues. I think it also doesn't work with point lights in the first place.

Only directional?

[night shell]

no

enlighten does work with all lights

except area

the only differences

is that for spot/points

it doesn't support indirect shadowing

[nova bramble]

No indirect. Yeah.

[night shell]

it can do bounce lighting, but not indirect shadowing

[deft fiber]

With realtime precomputing?

[night shell]

yes

its been a bit iffy for me at times

but I've been able to get it to work

[night shell]

but does that make sense @nova bramble ?

[deft fiber]

So it should be able to update spherical harmonics at runtime when the emissive light source changes

[night shell]

in theory yes

I rarely use emissive lights in my own work though so I never tested that

[nova bramble]

Yeah, that's the main reason I said options are limited. Have to work with Udon for scripts with much of C#'s functionality gone, even ones that help with performance. Then I have to keep real-time things very limited to keep things working in VR and VRChat with a decent amount of performance, preferably above 120 fps.

While also not using any post-fx that don't interact natively with the post processing stack, since VRChat doesn't support scripts on cameras.

[nova bramble]

Yeah, it does. Just strap a small range light to the front of the roomba, for example. That does solve one issue, at least.

Should I enable enlighten for that though?

[night shell]

lets step through this one at a time lol we are jumping quite a bit

[nova bramble]

I'm using bakery, so I'm not sure how the real-time will react to the baked.

[night shell]

but for having dynamic objects, which have emissive lights, casting light would be solved by approximating the output of those lights with a realtime light

now...

as for having BAKED emissive lights casting shadows for dynamic objects

that is a different story

[nova bramble]

That'll be much more difficult, yeah.

[night shell]

and given also that your in VRC, again your options are very limited

but there are solutions that can be applied thankfully 😛

so AO would be the first one, but like I said the problem with AO is that it won't give you those defined shadows your looking for

case and point

but it would certainly help

[soft fulcrum]

if you could setup some sampling data, similar to probes but manually crafted
for example those line lights on the floor, you would setup a line object,
you could have a system that would simply reposition 1-4 dynamic lights based on proximity but that would only work for single avatar

[night shell]

^

the other solution is to use simple blob shadows

old school, but works

[soft fulcrum]

well reposition and set light params etc, its far fetched

laborous and not scalable

and questionable if possible with Udon or what that is

what is it btw

reading up

[night shell]

Udon is basically a propetiary node based scripting thing that vrchat has

designed to work only for VRChat

since vrchat at its core is all about user content, compiled C# scripts wont work

anyways

SSAO is a solution, blob shadows is another

the other is an idea that just came to mind

actually I might just implement it now for myself

but its similar to blob shadows

https://github.com/ozlael/PlannarShadowForUnity

but the idea is basically a custom shader for an object

and its a "planar shadow" meaning that the shadow is only on planes or flat surfaces, but it basically transforms the existing model into a "fake" shadow on a floor

if that makes sense

if you are familiar with stencil shadows (i.e. doom 3 or other games of the era) this is sorta similar but not quite

[nova bramble]

Yeah, but other than me using a shader for the floor already, this would also be an issue.

I don't use planes.

[night shell]

yeah thats one drawback, same for blob shadows as well

[night shell]

yeah well sadly in that case, AO would be your only solution

if it wasn't in VRC though there would be alot we can do to help you out but yeah VRC won't let you do much

[nova bramble]

Well, it is enabled already, but it doesn't really ground dynamics into the world much.

[night shell]

yeah like I said thats just a downside of AO, its designed to be a global solution, it won't get you the defined shadows you'd expect

again if it wasn't VRC we would point you more in the direction of using an analytical shadow solution

either one you can buy from the asset store, or there is a free one I made (still wip though) that would be more what you'd expect probably

https://github.com/frostbone25/Unity-Capsule-Shadows

[nova bramble]

Yeah, it's unfortunate. It's what I meant when I said I use 2019. I forgot to add that I use it because of VRChat in the first place, which adds layers of limitations onto the project.

[night shell]

to pivot to the another thing you were talking about though in reciving more accurate illumination on dynamic objects

you can use LPPVs

[nova bramble]

So I just attach an LPPV component to the gameobject, and that'd be about it?

[night shell]

roughly yes

now it depends how populated your light probes are though

if your probes are super sparse, there won't be that much of a difference

[nova bramble]

There's plenty.

[night shell]

ehh its not too much honestly

[nova bramble]

Yeah, there are some blindspots.

[night shell]

also if its an interior enviorment you shouldn't have probes outside

[nova bramble]

You do see it from the outside as well.

Hence the bridge.

There's a look-out platform.

[night shell]

oh ok

[nova bramble]

Yeah, I wanted to make sure the outside is baked as well.

Correctly.

The light probes look like this inside.

[night shell]

as long as its placed well in the correction transitions points for lights then it should be ok

as a test you can throw a unity cube in there

put an LPPV component on it

make sure that the mesh renderer on the cube uses proxy volumes instead of blend probes

[nova bramble]

yeah

I'll definitely have to set more probes though.

[night shell]

but yeah sorry, not to many options especially in a VRC context but hopefully anything that we've suggested helps

[nova bramble]

No problem, thank you.

[spring igloo]

I just..need help troubleshooting the issue of this not baking at all.

I've left it for probably an hour and no progress.

I have tried clearing the GI cache, restarting unity, and restarting my pc

also tried changing settings a bit

[night shell]

if it takes forever to bake it could mean a few things

but most obvious would be that you just have too many objects that you're baking

[spring igloo]

My scene really isn't that big, and it NEVER has taken this long, let alone not bake at all.

[night shell]

how many objects?

I mean size in terms of the quantity of lightmapped objects

because you can have a large map but only a few lightmapped objects

or a small map, but with a massive amount of lightmapped objects

so how many objects are you lightmapping?

if you don't know gimme a sec I can lend you a script that'll tell you

drop it in an Editor folder

[spring igloo]

Sorry, I have returned from some stuff.

[spring igloo]

Right, I am a bit dumb so I don't know how to use that script, but it doesn't matter what I set to static, or remove from static, it always gives me the same issues.

[night shell]

what lightmapper are you using

and on what hardware?

[spring igloo]

GPU Lightmapper with unitys built in stuff, and RTX 2070

Progressive GPU Lightmapper*

[night shell]

also for this like I said, just drop the script in an Editor folder in your Assets directory

[spring igloo]

Well, after that, what do I do with it?

[spring igloo]

Ah, I see.

[night shell]

also if it has an error just remove the first line

accidentally left that in

[spring igloo]

Okay, there was a lot more objects than I had expected, 2129.

[night shell]

lightmapped objects?

the number of objects contributing to GI is the objects that will be used by the lightmapper

[spring igloo]

Oh, It seems I misunderstood it? It says mesh renderers receiving lightmaps is 1241

And contributing to GI is the same number, maybe thats bad?

[night shell]

no that isnt

the tool I wrote there is a bit jank and not fully clear

but the number of the objects contributing to GI are the number of objects in which you are lightmapping in total

and the two numbers below are more specific

[spring igloo]

Yeah.

[night shell]

since you can have objects that contribute to GI and recieve a lightmap

but you can also have objects contribute to GI and just only use lightprobes

[spring igloo]

Right, well regardless I got 1241 with lightmaps and GI.

[night shell]

I mean that is large amount

what do your lighting settings look like for the GPU lightmapper

[night shell]

damn that is a lot of samples

[spring igloo]

It was given to me by a friend and it has worked like a charm until now.

[night shell]

especially with the bounce settings since those act like multipliers in a sense

well if its preparing to bake forever then something is clearly wrong

so first thing I'd do is drop all of those settings down in quality quite a bit

[spring igloo]

Alright.

[night shell]

8 sample counts

bounces to 1 minimum

max to 1 or 2

lightmap resolution drop it to like 5

and then just try to bake from there

and see if that allows you to even bake

[spring igloo]

Nope, same problem, 5%, then the time left just increases over..well time

[night shell]

just give it a bit of time

I've had it happen

to where sometimes the number does climb

and for whatever reason its never accurate

but giving it a bit of time i.e. around a minute or more it'll then finish prepping the bake and then it will start the real bake

[spring igloo]

Well, when it climbs, it never stops. Like I've had it hit 20 hours while just leaving it hoping it'd work.

[night shell]

just give it a minute or more

and if nothing changes we can try something else

[spring igloo]

Okay.

No progress so far, again, 5%.

[night shell]

unmark all objects in your scene

specifically unmark the Contribute GI static flag

[spring igloo]

Yeah.

Now let me bake.

And it..instantly started baking lol

This amount of objects never affected me negatively before like this though..

[night shell]

it could be due to a number of things

but to narrow it down I would start by enabling the objects in the scene little by little

just to narrow down what could be the problematic ones

[spring igloo]

Okay.

[night shell]

also going forward, in my experience even for production ready scenes you never need to really go that high for sample counts

[spring igloo]

Oh, I see, what do you recommend?

[night shell]

I've had sucessful good looking bakes 95% of the time with settings like
direct samples - 32
indirect samples - 64
enviomrent samples - 32
min bounces - 1
max bounces - 4

and what takes it most of the way is to use the denoising within the filtering option

and the denoising always does a great job at cleaning up your lightmaps

especially with low sample counts, and its very fast

[spring igloo]

I had set everything off of static, then slowly re-added them and its baking now.

So, that seems to work lol

And these settings are baking much faster, and from the stuff that has baked so far, it looks just the same as the one with WAY too many samples lol

[night shell]

yep

you could probably lower it even more and you might not notice the difference

also untick the progressive updates, that can make it go a little faster

[spring igloo]

What does it do at all?

[night shell]

basically it tries to show you a preview of your lightmap quickly from where your camera is currently placed

but if you move the camera you will lose that view anyway

[spring igloo]

Oh, so its using extra computation for a little thing thats..basically pointless when you step away regardless

[night shell]

pretty much

[spring igloo]

Good to know, thanks.

Yeah, these new settings much better, my old ones hit 0.59 gigs, this is at 33mb when its mostly done lol

[night shell]

well thats because I told you to lower the lightmap resolution

[spring igloo]

Yeah.

[night shell]

that means lower quality

[spring igloo]

Well, it looks the exact same to me sooo

[night shell]

I'm not too sure how familiar you are with lightmapping, but lightmap resolution is a multiplier and basically is responsible sort of for allocating objects in a lightmap

the higher the number the more every object will use up an atlas

which will mean more lightmaps of course

but better quality

due to the higher allocation

and if you want more quality you can increase the max lightmap size which will increase the overall lightmap size allowing you to get even more quality

yatta yatta

thats the dumbed down jist of it

[spring igloo]

Yeah.

It just finished and..as I am looking at it, there is a very few amounts of like..artifacts of light that shouldn't be there, stuff like that. But in my game you're not in awe over the lighting, you're just socializing and all so, I am happy with this.

I had no idea lightmaps had such an effect over the game size, it's literally halved..

[night shell]

you can optimize them even more

and make it way smaller

[night shell]

doubt your still interested @nova bramble , but made a modified version of the technique I talked about here

works alright with fully baked lighting

[edgy aurora]

Hi, I'm trying to bake lights on a unified mesh. I am working with a tile based approach, and baking lights directly onto them gives me some weird artifacts between the seams. I previously got advice to combine the meshes into one, so I did that. Now I'm having a couple of problems:

1. I'm getting a weird "grid" of shadows over the entire mesh
2. The mesh is always uniformly lit up, even in dark areas

and here's the previous Issue I had:

[deft fiber]

Mesh has no lightmap UVs
You should be getting a warning about that in console

[edgy aurora]

The only warnings I'm getting is about UV overlap. I'm getting an error that says Assertion failed on expression: 'openCLRenderBuffers.HasBakingBuffers(), though

[deft fiber]

The mesh needs lightmap UVs

You can set them to be generated in mesh import settings
Also, you'll want to make sure the wall panels aren't simply joined, but also merged

That way they don't need lightmap seams between them

[edgy aurora]

so, should I bake it with the individual tiles, then pass the uv2 property to the joined mesh?

[deft fiber]

No
Make the geometry continuous in modeling program so no seams between tiles
Enable "generate lightmap UVs" in Unity in mesh import settings
Bake

[undone surge]

Hello hello ! Already made a post on the forum but maybe some of the discord community would have any idea about that,
I have some weird behavior with baking lights that are going through a wall and I don't understand why. I tried a bake in GPU, I have the good light intensity but with artifacts so I decided to go for the CPU bake as I heard that it was better but idk why, light is going through a wall.. I let you the thread here just in case !
Thanks for your time reading this ! :)
https://forum.unity.com/threads/trouble-with-baking-lights-that-are-going-through-a-wall-hdrp-14-0-7-unity-22-2-17.1436704/

[gloomy marten]

anyone know why this is happening ?
in blender UV is fine but when i import it to unity i get overlap warning and this the result

[little condor]

You might have to generate the lightmap UVs. In the Project window, select the model you imported, check the Generate Lightmap UVs option, then hit save.

[gloomy marten]

i have done it to

[forest tree]

How do you make sure TMP texts receive shadows in a 3d scene? Right now it looks like my signs are glowing

[arctic isle]

assign them a material that is using a lit shader

[forest tree]

That ruins the text, it just becomes blocks

[gritty fox]

Got a scene like this, all interior so no skybox or whatever and this is the sort of look i want

but when i bake it goes weird like this

Whats the best settings for mixed lighting as baked doesnt go very well for me

[night shell]

that AO is really really strong

[gritty fox]

it is?

[night shell]

very

AO should never be that strong

as for the baked lighting

[gritty fox]

ill try bake it without then. I dont remember changing anything on it so i thought that was default

[night shell]

nah its usually off by default

also your settings for the lightmapping are incredibly high

I would set them to something like
direct samples - 32
indirect samples - 64
enviorment samples - 32
min bounces - 1
max bounces - 4

and then use the denoisers within the filtering option (set from auto to advanced)

there won't be much of a quality drop and it will bake so much faster

[gritty fox]

crashed 😆

even the reporter crashed after lol

1 moment

[trim glade]

How can I make this sign shiny?, I added Emission and I have Post Processing, I'm new and not sure how this works.

[gritty fox]

ah

same results

[twin sun]

Whats going on with relfection probes?

my first bake took two minutes, but every subsequent bake took far longer, like half an hour estimated now

i even lowered the settings in between

[night shell]

not sure what you mean here

you mean shine as in lighting up the enviorment around it?

shine as it making it bloom?

or shine also in to make it reflective/shiny?

or all 3?

[trim glade]

yes, I'm trying to make it light the enviorment around it

I think adding bloom somehow will fix this issue but not sure how I'll try and look up tutorials

[night shell]

well emissive light sources in unity will not emit realtime light

well technically it can but not in the sense that it works out of the box

if you want it to work in realtime you need to use enlighten

and realtime englithen GI within your scene

if you don't want to have enlighten realtime GI you can also bake the lighting in your scene

and emissive lights will then show up

as a note also I would advise that you don't light areas purely with emissive when using baked lighting, I would suggest you use area lights and roughly place and shape them to match the colors/light intensity of your signs

[trim glade]

thanks man, appreciate it.

[trim glade]

I fixed the issue, I made an Empty parent object and added a bloom effect to it, almost works, it does shine but not on the enviorment around it, any ideas how to fix that?

I think I need to bake the lights but if there's a better option I'll be happy to hear

[frozen valley]

When i make the intensity on the lamp to the right higher than the light to the left the light just stopps reflecting and spread light, and if i stack the lights up by three only two makes reflections, if someone understand my problem I would be very happy to get some help, Thanks!

[night shell]

I did explain briefly how you can make the light actually affect the enviorment...

[night shell]

I suppose the other option for emissive lights is that you can approximate the lighting from it using realtime lights, so you can place spotlights or point lights around the sign

[frozen valley]

When i make the intensity on the lamp to

[trim glade]

thanks that worked, just added a point light and it seems like its actually from the sign.

[timber lichen]

anyone got any idea why using Baked Lighting turns my map green?

[night shell]

bounce lightinggggggggg

thats why @timber lichen

although that bounce is intense, either you messed with the indirect intensity/multipliers or you have green lights/emissive sources in there

[void orchid]

dose anyone know how, or why this occurs?

im using HDRP

lights are not supposed to be flickering at all

[night shell]

for backrooms it seems rather fitting 😛

[void orchid]

hah, this is what it should look like

[timber lichen]

what should i set it to?

[trim glade]

looks like one of the levels in that backrooms game

[void orchid]

The Hub

wdym

[void orchid]

anyways ill just bake the lighting

[mellow sierra]

@trim glade Don't harass people here, or you'll be kicked. We have zero tolerance for that nonsense.

[mellow sierra]

!ban save 799190212638539796 See ya

[tawdry schooner]

Bate#5598 was banned.

[night shell]

well I would investigate first

in the sense of make sure you don't have any green emissives in that area or green lights

but if you don't, then check all of your lights and make sure indirect multiplier is at 1

and in your lighting settings also make sure that Indirect Intensity is set to 1

and albedo boost is set to the lowest one, which I think is 0?

[summer aspen]

It looks like you are hitting the limit on shadow casting lights. You can have much larger amount of them without shadows. Should post more details for exact answer.

[void orchid]

Yea, I just need to bake the lights

[night shell]

I thought HDRP was mostly deferred?

[summer aspen]

When using shadow map for dynamic shadows it still has limits

[void orchid]

really?

hm

[summer aspen]

You can extend number of shadow casting lights by increasing shadow atlas resolution (I'm not completely sure about that I only used URP and it has that) https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@14.0/manual/Shadows-in-HDRP.html

[deft fiber]

I think by default it's a tiled kind of forward, similar to forward+

HDRP has a lot of lighting stuff I don't know, but some ways to troubleshoot it would be to see if the flickering happens with smaller meshes, different types of lights or with shadow casting disabled on the lights

[uneven karma]

How do I stop the clouds from being lit up like this on the sides of the planet when looked at from behind? (front vs back view)

[timber lichen]

why when im in Scene everything is fine but when i press play the game becomes very pixely

[little condor]

Is it your scale in the Game window?

[little condor]

Well it looks like your clouds are transparent, so the light is going through them.

[night shell]

ohhh I think I might know where your green light is coming from, and its probably your caves text

and you have the emission intensity property on it set to something sky high

[fallow sorrel]

Hi, does anyone know how any possible methods to block 2D lights, especially using tilemaps. For reference I'm using URP and Light 2D. Thank you!

[uneven karma]

Making them non transparent does not fix the issue.

[little condor]

Can you show the material that the clouds are using.

[uneven karma]

Sure, once I get on my PC

[deft fiber]

It's a bit hard to see from your original picture how the clouds are exactly, but if you remove faces from their mesh underside then light cannot be reflected on that side

[uneven karma]

Its made in Blender, do you know any tips on how to do that?

[deft fiber]

You would delete the faces of the clouds facing the planet
Blender doesn't cull backfaces by default, but Unity does

[uneven karma]

I'd do this in blender, correct?

[deft fiber]

Yes

[uneven karma]

Thank you, any specific tools / modes you do this in blender?

(Sorry about all the questions, I'm new to blender)

[deft fiber]

Selecting and deleting faces in edit mode

[uneven karma]

Thank you

:D

[uneven karma]

It worked! Brilliant! Thank you so much, I've been attempting to solve this issue for days!

[timber lichen]

Hey, anyone have an issue when baking lighting where most lights dont generate and instead break and show up randomly on things?

[deft fiber]

You probably have warnings about lightmap UV overlap in the console
The scene window debug views can reveal that and other issues

[timber lichen]

On baking or in general, because right now I have no warnings

[deft fiber]

With baking
I recommend check the debug views first for issues, then look for your issue from this guide
https://forum.unity.com/threads/lightmapping-troubleshooting-guide.1340936/

[timber lichen]

holy moly i never noticed that tysmmmm

[timber lichen]

alright ill bake on low settings to see what happens. also forgive me im new to unity in general, where can I find the debug view?

[deft fiber]

These in scene window
Note that data displayed for baked global illumination is valid only for one scene during the editor session when you baked the lighting

[timber lichen]

Oh very useful, and the thread is very informative, I'll look into it. Thank you so much :)

[timber lichen]

this doesn't seem good

[frozen valley]

i have no idea why this light wont appear, when i am going closer to the lightsource it start to apear, someone know this problem, Thanks!

And do someone know why this decals wont render in scene view like it should, its very hard to edit them when you only can see them in particular views

[night shell]

per pixel light limit

are you using urp or built in?

oh wait your the same guy I told you before

[frozen valley]

Urp

I know

[night shell]

did you not set it?

did you change the option in the URP settings? @frozen valley

[night shell]

ah well if that is the case then you most likely have hit the limit on the amount of realtime per pixel lights you can have in your scene

so there are a few things you can do

1. bake the lighting (but that means some lights will not change, and judging from your project name that says "horror" I imagine that you want these lights to be togglable)
2. cull/hide/disable lights in other rooms when your in one room

[frozen valley]

Can you change the limit

[night shell]

no

[frozen valley]

What is the limit

[night shell]

the limit is there because realtime lights are expensive

8 is the limit which you've already maxed out

I just told you a couple of ways you can get around it

[frozen valley]

Is it any simple way to hide the lights when you are in another room

[night shell]

yes, you can code like a simple trigger systen

to where when you enter certain rooms

you forcibly disable lights in other areas

its not difficult

again, you can't change the 8 per pixel lights limit, that limit is there and enforced because realtime lights are expensive especially in bulk

now

with that said

I suppose if you really wanted to

URP on an experimental branch has deferred rendering

which means no limit on realtime lights

URP 12.0.0

you can switch to that

not sure if the unity version you are on will allow you to upgrade to 12.0.0

[frozen valley]

I have another question, my camera is hiding my decals from rendering in the scene view, that make it very difficult to edit them in the scene, and thanks for the help before!

[night shell]

I'm unfortunately not familiar with the URP decal system so ask in the #archived-urp channel

[frozen valley]

ok👍

[deft fiber]

Isn't it considered stable in 2021.3. rather than experimental?

[night shell]

I'm not sure I haven't used URP in a while

so it might be stable now

[deft fiber]

Forward+ is experimental in the beta releases at the moment I think

@frozen valley the simplest workaround to light limits is to split your meshes into smaller segments, since light limits are per mesh

[night shell]

oh true yeah forgot about that, that is another way around it

you'll still be hitting the limit though if the lights are in close proximity (or if your lights have large ranges and just intersect everything in the scene

[frozen valley]

So that could be the reason why the lights reflect on the furniture and not the walls

[frozen valley]

ok👍

[deft fiber]

Yes

[night shell]

but yeah those are your solutions

1. bake lighting
2. create a light culling system
3. split up meshes
4. upgrade urp version to 12.0.0+ to use deferred rendering
5. switch from URP to built in pipeline and use their defered rendering (or stick with the forward in BIP but in there you can incrase the per pixel limit as high as you want)

pick your poison

[frozen valley]

Thanks!

[frozen valley]

Could you help me with a question in the #archived-urp tab?

[deft fiber]

I'm not familiar with decal issues

[floral fog]

Hi everyone!
So, with 2 friends, we are making a horror game for a school project.
I wanted to implement a nice flashlight, but it is flashlight is cutted in half ??
I don't know why, and I haven't found anything on the internet about that...

Does someone know how to fix that? (I haven't changed anything in the graphics settings)
Thank you in advance!

[pulsar gyro]

Does anyone know how i can get lighting/shading like this?

[night shell]

range

light range

[night shell]

lightmapping 100%

[night shell]

also for the shadow being cut in half I would make sure that if your casting shadows, that you don't have anything in front of the light that would occlude the source, causing it to appear in half. If not I suppose I would make sure that you have no light cookies on that might be causing the issue

beyond that not sure what else could be causing that, too little information

no idea what render pipeline your using, how many lights are in your scene, etc.

[pulsar gyro]

Where is that?

[night shell]

built right into unity

in the lighting tab

[pulsar gyro]

Sorry im stupid where is it in the lighting tab?

[night shell]

this whole thing

[pulsar gyro]

How do i set it to 100%

[night shell]

oh I was just saying that as like a confirmation

I can tell your going to need some help so I'd suggest starting with these

https://www.youtube.com/watch?v=KJ4fl-KBDR8&pp=ygUddW5pdHkzZCBsaWdodG1hcHBpbmcgdHV0b3JpYWw%3D

https://www.youtube.com/watch?v=okYhs6kQ0xw&pp=ygUddW5pdHkzZCBsaWdodG1hcHBpbmcgdHV0b3JpYWw%3D

[pulsar gyro]

Thank you

[uneven karma]

How do I stop these outlines from appearing at the back of the rings?

[deft fiber]

You can limit its angle to avoid the wall, use a shadow caster to have the wall block the light or use sprite sorting to avoid lighting what's behind the other wall

[deft granite]

How to fix this lighting on that tree, is highlighted even though it is behind the player's back

[floral fog]

hey !
first of all thanks for your reply :)

i tried what you told me to do but it doesnt seems to work.

To show you, I created this simple setup (one simple basic spotlight and my wall which is from my blender 3D model) to show you (first pic)
As we can see, it is cutted in half :/

I can notice that the line correspond to the horizon as when i make the spotlight look down the problems doesn't seems to occur anymore (pic 2)

Finally i also noticed that when i remove my wall and put a simple cube the problem is just gone (pic 3)

It seems to be a problem from the 3D model no ?

Is there anything i should modify onthe 3D model to get rid of that ?

[deft fiber]

Where is the model from?

[floral fog]

my friend made it on blender

[deft fiber]

I'd check the normals
But if you didn't make the mesh it might be harder to troubleshoot

[floral fog]

I can ask him to check that anyways

normals have to be checked on blender or on unity ? (sorry im a real noob ahhahahaah)

[floral fog]

I LOVE YOU IT WORKS

ive been on that for 1 week now

[subtle nova]

Im using a camera that culls everything except for my player to render my player to a render texture
Image
the issue is that by culling everything except for the player, i'm also culling the shadow casters which block the environmental light
is there a way i can only render the player to the render texture without culling the shadow casters?
(note in the image that the model in the scene has no rim lighting, but the rendered sprite does)

[haughty jolt]

Hi, does anyone know why my baked lightmap shadows seem to pop in and out when I move the camera towards them, as if they were a realtime shadow? Im using baked indirect as the lighting mode

I thought one of the points of baking was that I wouldnt have any pop in from it

[subtle nova]

The player is a 3D model that gets captured by a camera that runs through a custom downsampling algorithm and fed into a render texture to be drawn ingame as a sprite

If that camera can see more than the player this effect breaks as I’m now drawing parts of the world on top of itself at not necessarily the correct scale or depth

[deft fiber]

URP would let you use renderer features and HDRP custom passes to render specific meshes again with a different shader, such as one that's invisible save for casting shadows
There's probably a way to replicate that behaviour in BiRP somehow
Or duplicate mesh renderers as shadows only for the other camera