archived-lighting

[prime sedge]

I'm now realising I have like 1k objects to mark static

how would I combat this? the cupboard can't be static because it's openable/interactable, But the light won't cast light on it probably because it's a baked light

Would the solution be to just make lights that hit/are close to interactable/moveable objects be realtime?

Oh potentially 'mixed' is best for lights that cast onto/near these types of objects.

[supple nacelle]

You may want to ensure they are all static batched, but that is outside of my sphere of knowledge. But having them all as their own individual baked little objects is going to make for a crap ton of lightmaps being generated I would expect.

They don't have to actually BE static, but they need to be flagged in a way to flag them as to be part of GI. Its one of the Static options where you click to make an object static, or you can set it to contribute to GI on its MeshRenderer.

You also may want to make use of the Scale In Lightmap value on the MeshRenderer for those, so you can tell them to only use like .1f of a texture map

[supple nacelle]

Keep in mind there are two aspects to baked lights. One is the direct shadows, the other is the bounced light.

[prime sedge]

I noticed I dont seem to be getting shadows in scene view

is that normal?

I had this off in urp lol

Okay so I remember why I turned it off now, It was when I started because I was getting this weird issue

[supple nacelle]

What are we seeing here?

[prime sedge]

Look at the shadow of the wheelchair hard vanishing

and the table leg

When getting close

Another example

[supple nacelle]

you have a shadow distance setting somewhere, I forget which that is related to though

[supple nacelle]

You might also have an issue with your light having a near range value too high, or a bias setting

[prime sedge]

on the flashlight?

[supple nacelle]

yea. I am not the best person to be answering, but these are the places I would look first

[prime sedge]

Ah near plane was too high on flashlight

Dropping it down fixed it

It was also set to hard shadows (whoops)

Grrr damn shadows

[static igloo]

Okay, I found what's causing the bug

How could I make Area Light Range not overlap closeby Area Lights?

Because when one Area Light overlaps the range of a second, the second goes blank

[prime sedge]

Are you using urp?

There is a light limit

[static igloo]

Yes, I do use URP

[prime sedge]

URP:

Light Settings

Forward: 0 - 8 additional lights per object.
Forward+: no limitation per object, but 256 (Desktop), 32 (Mobile), 16 (GL ES 3.0) per camera
Deferred: seems to have no limitation

[static igloo]

Speaking of this?

[prime sedge]

Nopr

in your URP settings

[static igloo]

I have this

I can't seem to find the Data file

[prime sedge]

I myself can't remember how I found mine one moment lol

On this

Double click the option in renderer list

This

[prime sedge]

Yeah

[static igloo]

and could you come again with what should I set here please?

[prime sedge]

I'm personally using Forward+

Under rendering path

[static igloo]

i'm not used with this types of settings

[prime sedge]

As I have quite alot of lights.

Try Forward+

[static igloo]

done

[prime sedge]

Now see how your lights are acting.

[static igloo]

now should I do anything else?

or just continue

from what I've observer earlier, it's the Area Light Ranges that overlap

Let me test please

it's the same

[prime sedge]

Can you post a picture or short video of what the issue is?

I'm new to unity myself but had a similar issue so thought my solution may have helped but seems it's unrelated.

[static igloo]

one second

i can't build the game to get it tested with this :/

[prime sedge]

I tried to fix this the other day but couldn't figure it out, My lights go through my walls? and it leads to alot of strange looking things, this red light is a good example

What's the best way to combat this?

The walls are thick and double sided

This isnt the best example actually I think that red is just high reflection

Dropped the specular highlights to fix the stairs but as you can see the red light is going through the wall upto the staircase

little test area to explain what I mean

Oh figured it out, Have to crank the shadow str on the light

[static igloo]

yeah, i can't find a fix for my problem

[prime sedge]

So my lights are randomly flickering all over my scene at seemingly random points?

Also happens in the build

turning shadows off fixes it

and im being spammed by this every second

if i turn shadows from my flashlight off it stops the flickering, The shadow atlas is the max size it will let me have it also

Gonna try baking the lights and see if that helps

[prime sedge]

before and after bake some objects are just black

grrr not marked as static

[prime sedge]

Oh right.. because it's a door that opens, how the heck do I work around that

[opal trout]

how can i make these lights give more of a pop?

right now they look dry afs

asf

i tried bloom but just looks off

im using URP

[supple nacelle]

You probably should give a reference image of what you are trying to achieve

[opal trout]

something more like this

[supple nacelle]

That reference looks like mostly just a basic bloom on the light. One thing about bloom is it REALLY wants you to respect actual intensity. Like it will look better to have an overly intense light with a small amount of bloom on your scene, than a low intensity light with too much bloom.

What is the emission setting for your light texture?

Also, if you want a bit of realism your emitting light should have a texture to the emission, and not just be the exact same color on every square inch of your light.

This is assuming your post processing layer and project are set to support hdr

[opal trout]

hm i see

im still new to light

so you're saying i should put an emission texture on my material?

do i just search on google "light textures"?

[supple nacelle]

If you don't then, yes - you definitely need that for a proper glowing light. That will also make that emissive light render when you bake the scene

I would ignore the light texture for now, start with an actual emissive texture, and you probably need to make sure your URP settings support HDR

For proper bloom to work, you need overbrights to actually be a thing

[opal trout]

yea my URP supports HDR

overbrights?

[supple nacelle]

Then just cranking up your emission intensity should cause bloom

[opal trout]

hmm i'll see what i can do!?

xD

[supple nacelle]

In non-HDR colorspace the brightest anything can be is 1, 1, 1

[opal trout]

bit confusing but i'll get there

[supple nacelle]

In HDR it can be brighter than that, like 20, 20, 20

It will render to the monitor as white, but its actually much brighter than just white

Like in real life, if you take a photo of the sun, it will show up as white on film

[opal trout]

yea i got HDR, i'd like my emissive materials to also give light, since its a neon city that's super important

[supple nacelle]

But because of the brightness of the sun, it causes all kinds of bloom, lens effects, and global illumination

its not just white, its a VERY bright white

Crank up your lights emissive to like intensity 2, and then bake your scene

See what that does

[opal trout]

not much honestly

[supple nacelle]

You have bloom enabled?

Try cranking emissive way up to like intensity 10

You might not be set to have an HDR post processing

[opal trout]

yea this is my bloom settings

[supple nacelle]

That is enabled in your urp settings?

[opal trout]

yea and these are my lighting settings

[supple nacelle]

Lighting settings won't matter yet

[opal trout]

okok

[supple nacelle]

if you crank up your lights emissive and you aren't seeing bloom, then something is wrong

[opal trout]

if i crank up bloom i see a shit ton of bloom but its ugly asf

[supple nacelle]

Don't crank up bloom

crank up emissive

What does that do at extreme settings like intensity 100

[opal trout]

lemme try that and bake it

[supple nacelle]

No need to bake

you should see the bloom immediately

baking is for the GI, which will also need to be balanced

[opal trout]

yea i dont see anything even with intensity at 100

[supple nacelle]

that sounds like you are not in fact getting an HDR post processing

[opal trout]

yea wtf

[opal trout]

these are my URP settings

[opal trout]

lemme see this

[opal trout]

where is this exactly?

[supple nacelle]

same as the previous settings, down under post processing

[opal trout]

ohh it was set to low

now i set it to high

[supple nacelle]

See if that makes any difference

[opal trout]

nothing changed

[supple nacelle]

if not, I am out of ideas

[opal trout]

i think its good to note that i started this project in HDRP

then changed to URP

[supple nacelle]

Yea, not sure. I am still relatively new to URP myself so not sure where you might be going wrong

[opal trout]

maybe something to do with the main camera?

yea this is super weird because people seem to get crazy lighting out of URP

meanwhile my light feels dry

maybe if i create a new URP asset?

[supple nacelle]

Wouldnt hurt to start a new project and just try to get a basic light working from scratch to make sure you know how it should work

Though someone here might have a guess why you are having so much trouble getting emissive lights to work

[supple nacelle]

For these I would keep that threshold higher. Like 1, so only overbrights bloom. And intensity can be kept pretty low as its going to be unnatural. like .1

Higher scatter will basically simulate something that feels like volume light around it, higher values can be fine for that one, depending how hazy you want to glow to be.

[opal trout]

i had HDRP still installed

looks a bit better now but the intensity isnt working still

[supple nacelle]

If intensity of emissive isn't having a noticable effect, you definitely are not getting a proper HDR post - so something is missing somewhere

[opal trout]

yea i think i'll reinstall URP

feels like im missing settings

i started project with HDRP then switched to URP midway, unity might have gotten confused

[supple nacelle]

Not sure that is the issue, but having a clean project should at least make it easier to learn how to do this particular thing

[opal trout]

created a new URP project to see and it looks way different it's actually insane

with only 0.25 the bloom looks gorgeous

so I'd say its the bloom that's broken

[supple nacelle]

Or something about your post processing settings - URP has a lot of settings and its easy to break it 🙂

[opal trout]

im using cinenachine

maybe its because i didnt set up the post processing extension?

I'm not home right now but are you using cinemachine?

[supple nacelle]

No idea, out of my area of knowledge there

I am not

[opal trout]

okok no worries

ill test it out later

thanks for the help!

[supple nacelle]

gl

[unkempt kernel]

Hi! I'm making a small room (like a storage/pantry) in Unity. When the player gets close to the door, the interior lights up smoothly. I'm currently using a Point Light, but when I increase the intensity, the light source becomes too obvious on the ceiling. I want the room to be softly lit without revealing where the light comes from. I'm looking for a realtime and fade-compatible solution. Any suggestions?

I want to softly light up the interior of a house without making the light source obvious. Is there anyone with knowledge on this or who can point me in the right direction?

[opal trout]

fixed it

and the problem was actually simpler than it seems xd

was pondering on rebuilding the project at this point

basically i was missing a main camera on that scene

only took entire day

[icy elk]

What is this shadow just appearing/disappearing and how do I fix it?

[torpid inlet]

Hi. I'm using Unity with URP and I have a Spot Light attached to a lamp. The light only seems to illuminate the player model, but not the surrounding environment or the house interior. The light also appears with a weird blue/purple tint, and it's not casting realistic lighting in the scene. I checked my lighting settings, and I'm not sure if Global Illumination or baking is set up correctly. How can I make the lamp actually light up the environment properly?

[neon pebble]

you need to enable lighting

click the scene tab at top and then press on the light bulb

as you can see the yellow warning messages indicates that you disabled the lighting.

if you want dark scene you can simply disable the directional lighting gameobject instead

[torpid inlet]

thank you 🙂

[gaunt sand]

I'm having this issue where the same scene is lit differently depending on if you start the game from the scene itself or from the main menu. There is no do not destroy on load stuff and the level is loaded asyncrhonously with a loading screen

but when I build it looks fine

[fiery current]

I'm a real nube. Any idea what might be causing those smudging artifacts on the walls?

Things I've tried:
Doubling lightmap rez from 40 to 80.
Doubling lightmap padding from 2 to 4.

[supple nacelle]

You are sure your UV1 channel doesn't have any overlapping faces? How are you generating your second uv map?

[fiery current]

ok I have to confess that this is a sketchup model so I have no freaking clue what the topology or the unwrapping looks like.

can you elaborate on what you mean by "second" uv map in your question?

[supple nacelle]

lightmapping needs a second uv map. You may want to read up on what lightmapping does before getting to deep into this.

There may be a setting on your model mesh importer in Unity to tell it to generate a UV 1 if the file is missing one

Its very possible to that your model has overlapping facing and other errors in it, hard to say

[fiery current]

oh you are right

hard angle is 88, angle error is 8, area error is 15, min lightmap rez is 40, min object scale is 1, margin method is calculate. Generate Lightmap UVs is already ticked. Any suggestions?

[supple nacelle]

Have your brought your mesh into something like Blender to make sure its actually all valid with valid normals and everything? The quality of this prefab sounds suspect to me

[fiery current]

I have pretty good skills in Rhino3D and Sketchup, but I just started looking at Blender. I'm not up to the UV chapter in the tutorial yet.

[supple nacelle]

Might also want to try some other export options and try different formats out of it

I would guess it has overlapping faces and/or weird normals

[deft fiber]

https://discussions.unity.com/t/lightmapping-troubleshooting-guide/895352
c.15 invalid texels
If you have UV overlap as mentioned they, as well as other artifacts, can show up in wrong places
c.9 and the debug overlays to help troubleshoot: https://docs.unity3d.com/Manual/GIVis.html

[fiery current]

Thanks that doc is really helpful. I don't have a good conceptual model of why this is the case, but turning on render face 'both' (URP) helped a lot (but not entirely).

[supple nacelle]

yeah, this is a great guide

[deft fiber]

The texel invalidity chapter should have helpful examples of how and why
And what the drawback is for using render face: both
Invalid texels are lightmap texture pixels with basically no lightmap data, so they grab the nearest valid texel's color
Exposed backfaces invalidate texels, which is supposed to inform the lightmapper that he surface is inside another geometry
Therefore it should spread the valid lightmap color, rather than drawing a shadow there

But invalid texels can also show up where they shouldn't
Possibly also if there are exposed backfaces where there shouldn't

[gaunt yacht]

Hello. While im baking my indoor scene on urp, im facing with these such lighting problems. How can i fix it?

Here is my lighting settings

[thick pasture]

Hi all, I am getting an extremely dark scene after recreating my library folder. (linked before after pics)
I checked the lighting debug link just above but none of it seems to be related. The lights all work, they're just giving an extremely dim light compared to before.

I detail things a bit more in this post https://discussions.unity.com/t/lighting-much-darker-after-resetting-library-folder/1653760

I'm not sure what to look into next for the cause. Anyone experienced something like that?

[thick pasture]

Here are the main error messages, about incompatible keyword spaces

[thick pasture]

figured it out, was due to me having previously messed with the realtime hlsl

[deft fiber]

That would've been tough for us to find
How'd you mess with it that caused this only later on?

Oh I see you detailed that in the post

[thick pasture]

haha yeah, I had to go through the journey of remembering my mess 😅

[timber lichen]

i am new to baked lighting in unity, and cant seem to figure out how to stop these black splotches from appearing on some static objects after baking, can someone help me?

the console keeps saying i have overlapping uvs, but im not sure how to fix it without going insane from searching through forums

is there a simple fix?

[deft fiber]

#archived-lighting message Chapter 9 of this guide and the debug view modes for you too
The guide can also be found in documentation now

[sinful nebula]

Is there any way around to apply lights to specific rendering layers with 2d lights?
i want to seperate the effect of light on objects, but i heavily rely on sorting layers for my isometric game.
currently i don't see any options to apply 2dLights on a specific rendering layer yet the option is there for sprite renderers.

[deft fiber]

I'm not aware of one
Isometric games can use Y or custom axis depth sorting so sorting layers can be free to be used for other things

[supple nacelle]

I use this https://github.com/nukadelic/unity-lightmap-prefab-baker?tab=readme-ov-file

[grim tinsel]

Hello everyonem i'm beginner and i have put some light on my scene and it's look like that, why i have random illumination and it's stop instant idk why ?

[deft fiber]

Per object pixel light limit from the look of the symptom but hard to say for sure without knowing render pipeline, rendering path or the shaders used

Are those cameras over every light?

[grim tinsel]

Yes the cameras are useless it was for an light fog effect but im gonna remove it

[grim tinsel]

Ok thank I’ll see

[grim tinsel]

btw it's built in render pipeline

[deft fiber]

BiRP by default uses the forward rendering path which has a (configurable) light limit

If the shaders have a custom lighting model it may override the limit

[grim tinsel]

Can i increase over the "limit" ?

[deft fiber]

Yes, from the graphics quality settings

[grim tinsel]

oh nvm i fixed it, i changed my camera setting i switch rendering to deffered

[upper fable]

If you change the rendering path, make sure to familiarize yourself with the differences between them. They are completely different ways of rendering lighting that have their benefits and limitations as well as potentially large impact on performance. Forward rendering is not the default without a reason, of course it has it’s limitations too. You can obviously change it back later but just want to point out that the choise of rendering path is not as trivial as you may think and can affect many things later on

[ancient notch]

Hi, guys. Does the APV (Adaptive Probe Volumes) pipeline somehow rely on the lightmap texel density of assets? Does increasing texel density in lightmaps affect the quality of the APV bake?

[deft fiber]

Not at all
Only probe spacing affects the "resolution" of apvs

[ancient notch]

Thx!

[weak stream]

my level is tiled so tiles near the player can render differently. lightmapped shadows reveal the seams. it used to be worse, until I increased lightmap padding. increasing further isn't helping though. I've seen suggestions to combine meshes, but I assume that would break my player proximity visuals. anything else I should try?

[deft fiber]

Not much
What do you mean by "player proximity visuals"

[weak stream]

tiles near the player highlight as a visual aid

[deft fiber]

There are other ways to do that kind of effect, at least

Like a shader for all objects that lets you highlight a tile shaped area
Or a shader for a decal projector or a fake decal that functions as an overlay to anything inside its volume

Otherwise you would be considering APVs which don't suffer from seams like lightmaps do

[weak stream]

so combine meshes after all and try these shader ideas? I'll give it a try thanks

[deft fiber]

If you have the option to use APVs, that's an alternative to combining meshes and figuring out what kind of shader does what you need

[sterile star]

So we're doing a PT kinda looping thing in our VR project where we additively load and unload scenes that share the same world space. we're hitting a big limitation with lightmap loading where the second we load the new scene in the background, the lightmaps for the current room just vanish and the environment lighting changes. Anyone got any ideas on allieviating this?

[supple nacelle]

You are loading the same scene multiple times? Don't think that is doable if so.

You likely would want to have multiple, and pool then if it isn't possible. Would behave better than loading regardless

[pallid gorge]

What can cause these strange colorful blobs on lightmaps (red arrows)? Notice how book (green arrow) don't have them. Image on the right shows that they have approximately same lightmap size. Both models have Generate Lightmap UV's turned ON. I tried different lighting settings for baking but had no luck figuring this out. Anyone knows what to do?

Here are my current settings

[deft fiber]

Many lightmapping problems manifest as colorful blobs
https://discussions.unity.com/t/lightmapping-troubleshooting-guide/895352
Mostly looks like c.18, could also be affected by c.10

[pallid gorge]

Oh, thank you! I will take a look

[deft fiber]

Usually the more geometry seams you have, the more lightmapping issues you have and the less efficient the lightmap spacing is

Because every seam needs padding to prevent leaking

[sterile star]

not really. Basically we have a corridor, a room, and variants of both that get loaded in and out as needed.

• The player enters corridor 1 through an opening, and moves through the corridor
• Room 1 gets additively loaded as the player approaches the door to the room.
• The door opens, showing Room 1.
• The player enters, The door closes, And Corridor 1 is unloaded
• Corridor 2 is loaded while the player does puzzles in the room.
• When the room puzzles are complete, the player moves through an opening into Corridor 2.
• The opening closes behind them, Room 1 is unloaded, and Room 2 is loaded as they move through Corridor 2. rinse, repeat.

[supple nacelle]

That might still be an issue. I haven't tried doing that with scenes. But with Prefab Baker and loading any baked prefab more than once the lightmaps don't work properly.

Why are you loading and unloading the same scene though? Rather than enabled and disabling the gameobjects? Loading and unloading is going to cause all kind of allocation and garbage collection needlessly. Are you sure these rooms too large to keep in memory?

[supple nacelle]

If you only have a few rooms doing this, I would definitely not be unloading them and would be recycling the one

[ancient notch]

Hi, guys. I'm having some issues while baking lighting with APVs. It seems that the bake has absolutely no effect on my interior, while the outside spheres appear to be baked correctly. How can I solve this issue? Can attach additional info if needed

Objects set to static, mesh renderers receive global illumination from light probes

[small horizon]

Is there any way to change MeshRenderer.receiveGI in a build? This property is editor only.
Edit: it seems setting Renderer.lightmapIndex to the index of the desired lightmap is how you make a Renderer change from using light probes to using lightmaps at runtime.

[marble coral]

We are using subtractive lighting mode and we are having a issue where shadow pass through other objects is there any solution to it?

[scarlet geyser]

Use shadowmask

[last haven]

Hello, we've been working on a project where we want to have real-time shadows and allow the player to toggle on/off lights and change their color/intensity as a customization feature. I'm starting to think this is just generally impossible. Lights disabled = ~1400 batches, enabled = ~15k. Obviously 15k batches is insane. We've tried all rendering paths, enable/disabled srp batcher, static batching, & dynamic batching. I plan to combine some of these meshes which should drop the batch count though however much I drop it, this will still be an issue. Is there anything we can do or does Unity just not support this kind of project?

[deft fiber]

If you're using SRP Batching (and you should) you don't have to stress over batches

SRP Batching decreases the cost of batches
Rendering paths beyond Forward decrease the cost of lights separately from that
Shadows will always be expensive regardless of batches

[last haven]

I was initially hoping for a simple answer to this but I believe the map is just generally unoptimized. Too many shadow casters, lights with large ranges. A lot of the map is separate meshes as we want the player to have freedom on customizing the wall/floor materials, which definitely doesn't help. We are redoing a bit of it right now. I'll come back here if it's something I can't solve, but definitely seems like a user error on our end.

[deft fiber]

Rarely simple answers to optimization
You can profile the performance analytically to find the problem areas, and also less analytically try toggling objects or effects to see how the performance changes

Like changing all light ranges at once or toggling shadows for them

[last haven]

Turned shadow casting off for a few mesh renderers & lowered the ranges from 12 to 8. Somehow went from ~11k batches to ~2k. Huge difference for little work, not complaining though!

[dim narwhal]

hi i want to ask is there a way to make this baked lighting more look more clean, just like the screenshot the baked light on some part make the wall look dirty.

lighting option that i used right now

[deft fiber]

Lighting affects batches because when the material gets information from a different light from another material next to it, they can't be batched
But as mentioned SRP batching decreases the cost of separate batches so it's not that big of a deal
Deferred rendering doesn't affect batches at all with its lighting, but that doesn't always mean it's necessarily cheaper than Forward or Forward+

[deft fiber]

You could increase samples and decrease compression
As long as denoising and filtering settings are "okay" there is no need to tweak them as denoising effectiveness is limited by samples and compression

But ultimately getting a perfectly smooth baked light is pretty difficult
If an option it's better to have even a subtle texture on the wall that conceals the noise in the lightmap

[dim narwhal]

Thank you for the help, I will try to increase the sample and disable compression

And I want to ask one more question my non static object became black after baking, I think it because I add light probe but not set it right yet is there a way to disable the light probe without rebaked the light? I have tried deleting the light probe it doesnt fix the issue

[deft fiber]

I think probes and lightmaps share the lighting cache so probably not

Although it's possible to overwrite them separately from C#

Usually not worth the hassle

If you have a GPU remember to bake with GPU so the bake should be orders of magnitude faster

[dim narwhal]

Ok Thank you for the help, I dont have gpu so im sticking with cpu right now

[quick shoal]

https://cdn.discordapp.com/attachments/1276183651012575264/1386689164690456576/image.png?ex=685a9e6c&is=68594cec&hm=a50910c593f6e83578462c5a4808f4f038aeaf27e3d8ab9a6b75f302e3af5bf1&

Why is the shadow of the cube not visible?
Mesh also cast shadows on

[undone surge]

Hello there ! I'm trying to bake a static lighting with a plane but as it's a single face, there's this issue. Is there any solution to fix this or I'm cooked and I've to create a specific mesh with 2 faces ?
It's probably a recurrent question here but couldn't find any solution to this ! Thanks in advance 🌺

[chilly kettle]

Prob. Chapter 15
https://discussions.unity.com/t/lightmapping-troubleshooting-guide/895352

[ancient notch]

Hi, gyus. I have this kind of result after scene baking. Why some of my objects have map checker on it while other simply don't? It's "Baked lightmaps" in debbuger mode. All assets are static, have uvs and some of them are even ticked to generate lightmap uvs

[deft fiber]

Generally they all should have checkers
If you say some of them have lightmap UV generation enabled, is it the case that the objects without it don't have checkers?

Or you are also baking APVs and those objects are using probes instead of lightmaps
Though in that case I guess they'd still have the grey checkers

[uncut sundial]

Hi guys, can someone let mne know where migght the issue be here?

the shadows are extremly off for some reason, they're worse off in real time, this is how it looks in indirect baked mode, shadow masking looks slightly better but still doesn't solve the problem

[deft fiber]

Which render pipeline?

[uncut sundial]

URP

[deft fiber]

Then you should be able to tweak the active URP asset to fix it
Increase shadow resolution, enable shadow filtering ("soft shadows") (in both the Asset and on light component), decrease shadow distance and/or add shadow cascades
Now there's also a separate soft shadow quality setting

In baked indirect mode the shadow you're seeing should be exactly the same as with realtime directional light

[ancient notch]

Some objects even with lightmaps generation don't have checkers. I also currently don't use APVs

[uncut sundial]

damn, I guess that explains it, thank you for your time

[deft fiber]

Hopefully ^^
If there's more weirdness you can also use the frame debugger to see what exactly is being drawn on the shadowmaps and what the lights are "seeing" from their perspective
Shadowmasks when baking can have their own weirdness, but it should not be related to this specific issue

[deft fiber]

Well, doesn't seem to be causing an issue besides being an odd inconsistency?
Could check other lightmapping debug views too, like contributors/receivers,UV charts and UV overlap while at it

And also if you've also baked Realtime Global Illumination, that bakes a separate set of lightmaps using a different system that have their separate debug overlays (and separate issues)

[ancient notch]

It seems that there are still problems with it, cause objects without checkers aren't baked in a proper way if compare them with checkered assets(

[ancient notch]

Okay, can this be an issue?

Overlap check

[deft fiber]

It's one of the issues

[ancient notch]

Thx

[deft fiber]

Is this true for the walls and objects we see in the screenshot? They show pretty typical symptoms of having no proper lightmap UVs

[ancient notch]

Yep

[deft fiber]

Right under there are lightmap UV settings, you have to make sure the minimum lightmap resolution specified is not lower than the resolution you're baking with

Additionally the objects must not have a crazy scale, in the mesh or inherited in hierarchy

The scale often goes wrong on export/import

If the room is one mesh, the walls should not be modular like that
And there should be no internal geometry

Seams in geometry and wasted surface area both are problems for lightmap baking

[ancient notch]

It's LODS and collisions uvs overlaps with original asset UV. Is it an issue? Actual UV seems to have no overlaps 🤔

[deft fiber]

Possibly
I believe the lightmapper attempts to bake each LOD level separately

The LOD meshes probably could all share the level 0's lightmap, but if the lightmap UVs are auto-generated they won't fit the geometry of the other LOD levels

The room itself doesn't have LOD levels does it?

[ancient notch]

Yeap. Walls are clear from LODS

[deft fiber]

But they still clearly have issues

[ancient notch]

Yeap

[deft fiber]

Probably more fundamental ones, so I'd try focusing on that first

Probably requires a bunch of test bakes so I'd make another scene that has just the room, one chair, one table, one TV and one lamp
No point baking all of them each time

Then if you want to bake without LODs, or some similar test, it'll be much less work

[ancient notch]

Okay, thank you 4 your time ❤️

[deft fiber]

In this case I'd also confirm the scene is the right scale, using a default cube
The default cube is one metre tall so that helps determine if the room is room-size

[deft fiber]

That's correct

The simplified test scene will surely help

There's many variables with baked lighting so a lot of problem solving is typically doing a lot of test baking, tweaks, more test bakes

Comparing to what should work, like default meshes

Sometimes the number of baked objects can cause an issue on the lightmaps, so even just stripping the duplicate scene from all the extra rooms and furniture may give a clue with how it bakes then

[ancient notch]

Thanks. Will try to simplify things and then try to detect an issue 🤝

[deft fiber]

Do post if you find something that looks like a clue
Also when you start seeing some more specific issues the link here #archived-lighting message
will help identify them

So far we've just seen very vague UV overlaps and wrong scales that look like most of those issues

But without something more specific would have to assume the meshes themselves could be an issue

Or the baking settings, or some combination thereof

[unreal zodiac]

i have a question, will unity realtime specular from realtime lights will work at future like unity 7, 8, 9 when it will out, like i need that because i plan to use specular realtime effect in future

🙏

(using urp)

[upper fable]

What do you mean by "realtime specular"? Whatever that is, if it exists now, it is very unlikely to disappear in future releases. I don't know whether the target version is decided upon yet, but unity have announced that they are working on unified render pipeline which would make URP redundant but that shouldn't remove any features, only add new ones.

[unreal zodiac]

ok thanks

[deft fiber]

Only lighting feature set to go away is Precomputed Realtime Global Illumination
If you can describe more specifically what kind of realtime specular you mean, we could say with more certainty

[unreal zodiac]

like just light reflections from smooth material (urp lit)

[deft fiber]

Not going anywhere fortunately
It's a basic feature of all physically based rendering

[unreal zodiac]

thanks

[abstract saddle]

Anyone know how to fix this stuff caused by baking lights? 👨‍🍳

[unreal zodiac]

Use more resolution in baking setting (for unity 6 and 2022.3)

And specify are you using urp

[abstract saddle]

Thanks for the response! Yes I am using URP. My current lightmap res is 40. I Have tried adjusting it before, but I will try again and let you know how it goes

[unreal zodiac]

i recommend use 70

[abstract saddle]

Trying it now. Get back to you in 82 years when it's finished

[chilly kettle]

70 is WAY to much.
In outdoor scenes you should not use more than 20 and even this is to much.

[abstract saddle]

Good to know. Any ideas on what's causing the funk?

[chilly kettle]

i bake scenes with res of 10 - 20 and they look good.
Are your mountains one sided? so they have a open backface?

[abstract saddle]

No they are full mountains

[chilly kettle]

closed geometry? also at the bottom? ^^

[abstract saddle]

No, on the bottom they are open. I'll try 10 rn

[chilly kettle]

i think you have invalid texel artifacts. You can check this with the "scene debug view" > "invalid texel artifacts"

If this is true, check chapter 15 here: https://discussions.unity.com/t/lightmapping-troubleshooting-guide/895352/4

[deft fiber]

Low resolution can amplify baking artifacts by making each messed up texel bigger but I do not think it causes them
At least unless resolution is lower than the minimum lightmap resolution set in lightmap UV generation, which only causes UV overlap and light leaking

[abstract saddle]

I'll check that once I find the setting. Thank you for your response

[deft fiber]

By default the minimum is 40 iirc, which is on the higher end
Resolution is of course relative to scene size and mesh's size in lightmap property

[abstract saddle]

The problem started when i tried to undo all my lightmap data and reset, and then when I baked again it was all funky

[deft fiber]

I concur it most looks like invalid texels, but somewhat atypical

[abstract saddle]

It is baking at 10 iirc rn from Kjarudi's advice

[deft fiber]

Did you "clear lighting cache" or do something else?

[abstract saddle]

Sure let me look for that. Not quite sure how to find that

[abstract saddle]

I don't think so, should I have? And if so, where can that be found?

[deft fiber]

After you've baked you can use the lightmap debug views https://docs.unity3d.com/Manual/GIVis.html

[deft fiber]

Dropdown on the Generate button

[deft fiber]

If you're also here to link people to chapter fifteen that must be easing my workload almost 50%!

[abstract saddle]

Right now it is generating with 10 iirc. Would you recommend clearing the cache and restarting?

[deft fiber]

Yes, unless it's not a long bake then I'd let it run

[chilly kettle]

Im back! Didnt read the unity discord for about 6 months! 😄

[abstract saddle]

How can you tell if you have invalid artifacts through texel validity view? Or is that not the right view?

Also thank you guys for your help!! I usually work in 2D, so this is really appreciated

[chilly kettle]

In Chapter 15 you see how it looks (red pixels = texel invalidity) if you are in debug mode

[deft fiber]

Finishing the bake could give a clue of the result before and after clearing cache, at 10 resolution

[abstract saddle]

I'll check it out

[abstract saddle]

Alright it has about 20 minutes left. Until then I'll check out this "chapter 15" y'all love so much

[deft fiber]

Changing multiple variables per test always muddies the conclusion a bit

[deft fiber]

If it was longer than like 3 minutes then I'd cancel, but that's subjective

[abstract saddle]

Bro my bakes take hours hahaha

Looks like I have a lot of invalid texels

[deft fiber]

Also check UV overlap

That's a pretty crazy result

The debug views require a finished bake though I'm pretty sure

[abstract saddle]

I'm gonna clear the cache

[abstract saddle]

oh 😂 😂

[deft fiber]

For test bakes it helps the speed to bake smaller segments of the level first
And to use GPU baking if you have a GPU
Lowering resolution and samples also speeds things up but can introduce some artifacts that wouldn't otherwise be there

[abstract saddle]

Yeah I'm using my GPU, it's a laptop 3060 though so still takes about 30 minutes per bake

[deft fiber]

Just based on this it looks like there might be overlapping geometry since the invalidity pattern is so speckled
And because it's repeating perfectly it suggests the lightmap UVs are not properly generated

[abstract saddle]

The pattern is the grass sticking out

Hmmm I don't see any overlapping geometry but the debug view seems to change throughout the bake so I'm going to let a full bake happen and then I'll look at it again

[deft fiber]

The resolution wildly changing between geometries suggests also missing lightmap UVs, or if there are drastically different scale in lightmap properties per mesh, or if the meshes have different transform scales

[abstract saddle]

Yeah the transforms vary between the inside of the map and the outside. The totally different res on the out side is not a playable space

I'll look into adding lightmap UVs. I've never done that before

[deft fiber]

It's a checkbox in mesh import settings
Dropdown below it lets you specify minimum lightmap resolution

[abstract saddle]

Found it! I'll try that if it is still blocky after this bake. But for now, I am going to bed. Thanks again!

[deft fiber]

You functionally have to have lightmap UV generation on, or have manually created lightmap UVs for lightmapping to work properly
Good luck when you continue ^^

[ancient notch]

Update about checker trouble: i'm using better lit shader at some of my assets - that's why checker isn't displayed at debugger mode. If i change it to hdrpLit - checker goes back
@deft fiber

[deft fiber]

Good to know!

It's possible that the choice of shader affects baking results

[ancient notch]

Hi again. Seems to be common issue with baking. Got artifacts on seams after bake. Wall geometry is merged and thick enough. My baking parametrs:
Tried to tweak resolution and padding. Thought it change something, but issue stays

[deft fiber]

Your sample counts are very low
The defaults are 32, 512 and 256

I would also have a room or a corner next to it made of default cubes with default shaders and similar lighting, so you can compare and see if the mesh or shaders alter the baking result

[ancient notch]

Okay, i'll try

[ancient notch]

Thank you. That helped

Another trouble: some assets become completely black after i enter playmode. Seems that lightmaps are messed after i click playmode button

[fallen island]

how do I fix this? idk what is this.

its like to that side its not lighten

every light has this issue in my scene

[ancient notch]

Seems to be a lightmaps compression issue

https://discussions.unity.com/t/lightmapping-troubleshooting-guide/895352/20

Try this

[soft compass]

Could be the normal map for the material, how does it change if you change material / remove the normal map?

or the mesh itself has bad normals

[high rover]

hi

Volume Profile

left is PC, right is NDA platform

why volumetric fog option is completely missing from the same asset, when I'm checking it on NDA platform?

[fallen island]

it works on other scenes

[soft compass]

doesnt mean much as many things could be different

[scarlet geyser]

looks like you didn't mark your texture as normal map

[fallen island]

Wdym?

[scarlet geyser]

does your normal map texture have "Normal Map" texture type?

[fallen island]

Should has it

But Ill check

[deft fiber]

Volumetrics could be disabled from the global settings, but not sure
#💥┃post-processing or #archived-hdrp seems more appropriate

[deft fiber]

https://www.reddit.com/r/Unity3D/comments/1ixeddl/reflections_go_dark_on_play/
Looks to be this issue
Especially as Bakery is mentioned and it also can be spotted in your screenshot

[abstract saddle]

Thanks for the help! Looks like generating lightmav UVs in the import settings set it straight

[deft fiber]

That solved all of the artefacts we were seeing?

[abstract saddle]

Solved the visual errors. I'll let you know how it looks through debug view once this bake is done. Although, I'm not too worried about it , as long as it looks good and runs good

[upbeat umbra]

I don't work in Unity's HDRP often enough, but I'm really enjoying the lighting quality. I'm taking some of the assets from The Human Spaceflight Project and updating them for this render pipeline. I'm kinda exctied to see where this goes.

[ancient notch]

Was fixed with new scene creation and reimporting all as prefab 😵‍💫

[cloud night]

How do you prevent unity from automatically rearranging your lightmap UVs?

[supple nacelle]

The mesh importer has a switch on it telling Unity to create the second UV map. Does your imported model already have two? The auto-generate UV should be disabled by default

[cloud night]

yes, though they're both the same layout. I do have auto-generate UVs disabled

[supple nacelle]

Then Unity shouldn't be changing anything. Are you re-importing the model after making changes or something?

[deft fiber]

For what purpose?

[cloud night]

not having shitty uv seams lol

[cloud night]

it's apparently because I'm using enlighten

[wild spear]

Hey lads, for some reason, when built, if I play, the sun source will work. But on other's pc, it wont, is there any reason why this happens?

[golden sequoia]

do area lights only work on meshes that have uvs in the mesh? currently i calculate uvs in a fragment shader on the fly, but have noticed when i bake, my area lights dont seem to work but the other lights do

[supple nacelle]

Area lights are baked only, so yeah. They need a proper lightmaps UV.

[golden sequoia]

ah okay thanks! that explains it!

[fallen island]

some didnt had

[fallen island]

How do I fix this so reflection is more realistic? My reflection is realtime so I dont understand what is going on.

Bc ig reflection is aligned to center or smth but I dont want that

[chilly kettle]

you will never get realistic reflections with reflection probes.

If you want realistic reflections on walls, you need Screen Space Reflections, but they are quite expensive.

[fallen island]

but is there a way to make it better at least?

[chilly kettle]

More Probes. Maybe one for each corridor.

[fallen island]

ok thanks

[chilly kettle]

But Reflection probes are more a thing for... maybe a weapon you hold in your hand.. to have the room reflected on the weapon.

They are not made to have reflections of the room on the walls.

https://www.youtube.com/watch?v=lhELeLnynI8&t=617s&ab_channel=Brackeys

[fallen island]

What happend to my baked lightning? I changed to hard shadows and it does not show any light

[fallen island]

oh so thats why it looks so bad

ok

[scarlet geyser]

(or planar reflections)

[fallen island]

I still have no idea why some lights disappired

[fallen island]

Thanks for help. The only way I had in mind was making new lights and deleting old ones.

yet everytime I generate lightning they disappears

So there is a bug that makes baked light disappear when I generate lightning

that sucks

I dont know how to fix it tho and I no wanna copy and paste it again

Just changed it to mixed and i will just switch it to baked

I have so many lights that its just pointless to fight with it

[unreal zodiac]

enable static on ur map and use reflections from realtime lights

or mixed

[fallen island]

Ye but realtime lights use a lot of processing power, no?

[fallen island]

Chat am I cocked?

It was showing 8 days earlier

[deft fiber]

Realtime reflections are "realistic", as long as your normal maps aren't messed up again

Reflection probes are a whole another deal

[deft fiber]

Likely yes
You should show your lighting baking settings

[fallen island]

you mean this?

[fallen island]

no I made sure my normal maps are good

[deft fiber]

Yes
This suggests that you are not baking lighting for this scene

[deft fiber]

If you do, this region below it is also relevant

[fallen island]

So thats why my baked light was disappearing?

[past depot]

20k light probes in this scene/group.. i have no reference. is that too much if I'm trying to run this on phones?
also how much would you aim for?

[chilly kettle]

How big is your scene?
For a single room its way to much, for a whole map its okay.

[past depot]

Yeah its a small part of a city with a mall you can enter. so probably okay then 🙂

thanks

[chilly kettle]

maybe share a screenshot so we can see the density ^^

[past depot]

sure

for example

I'm using Magic Light Probe to do this, probably haven't gotten the setting quite right yet though

(Also tried APV but i read it's more intensive and also got an "error" that it can't load it all in one go)

[deft fiber]

That looks like a lot
Most of them I expect are redundant because the lighting doesn't functionally change but there still are multiple probes in those spots

Even without probes it looks like a really big city to load in at once, with interiors and all

You will have to test it tough
The scene in general, and also with and without the probes

[past depot]

hmm.. what could i do to improve it? its not a too big city but i want to be able to enter the mall and keep walking around in and outside

[deft fiber]

Magic Light Probes probably lets you specify how many probes it places, and you can add or remove them otherwise also so that's a variable you have control over

[past depot]

Oh I thought you meant outside of the probes to improve the map

[deft fiber]

Large areas are often loaded and unloaded per zone

In a way that makes sense for the gameplay

[past depot]

Also have to still figure out MLP settings to get it right

So like by placing triggers or how would you do the loading/unloading?

[deft fiber]

There are multiple methods that are all situational

Triggers are good if the level has areas connected by specific points

Chunking is better if there are no specific points like that, but the player is more free to move between areas in a grid-like way

[past depot]

i guess not so good for this because of its openness

although.. perhaps at least the interior i could load/unload when leaving entering

[deft fiber]

But also if the player can move or rotate the camera, you must ensure the areas where they can look won't be unloaded

Interior/exterior separation is usually logical

[past depot]

Wouldn't it stutter each time this (de)activation happens though?

[deft fiber]

But this may introduce a pause to load during the transition
A lot of games utilize liminal spaces between two areas to hide loading in the background

[past depot]

also i don't have LODs. Adding those would probably boost it quite a bit?

liminal as in like a hallway etc

[deft fiber]

Yes

Loading screens that pause the game are used so the gameplay won't stutter during loading

[past depot]

What if everything is loaded in at the start and i just toggle meshrenderer enabled state?

[deft fiber]

Loading in the background will stutter only if the hardware can't handle that
Background loading will also place a time limit how long a slower device can take before the player reaches the area

[deft fiber]

Meshes outside of the camera's view aren't rendered to begin with so it's not a meaningful gain
You'd have to have another system running that would enable them which itself requires performance

[past depot]

So how am I saving performance by unloading them then?

[deft fiber]

The time it takes to load the scene initially, and any scripts that would be running in objects in unloaded areas

LODs help if there are many meshes on screen, especially due to distance
If your perspective is fixed that prevents the player from seeing very far and many objects at once, it will not help by itself much

[past depot]

(Aside from the initial load time...) Yea it's mostly just meshes(+colliders) so practically they can just stay loaded?

[deft fiber]

If there's no physics going on there either then yes

[past depot]

no, just static colliders like buildings etc so no physics unless the player walks there

[deft fiber]

These are typical techniques, and examples how they are situational

[past depot]

hmm wondering if lods will help enough to justify making them.. there arent that many meshes visible and theyre mostly rather simple. not sure about this metric

[deft fiber]

Like I said originally you will have to test performance first, to know if you even need to implement any of these optimizations

[past depot]

right

[deft fiber]

And when you do implement them, test again
And possible even by simulating optimizations before implementing them, such as by disabling specific meshes or effects

[past depot]

on my phone i currently get about 18ms of waiting for vblank

i think its 30fps(?)

well could be around 60fps if uncapped... and i still want to add npcs and other fun thingies

feels like i should optimize soon

[deft fiber]

Mobile devices control their own FPS caps afaik

and vsyncing

[past depot]

yea true.. but iirc it said cpu time was around 15ms and gpu around 18ms (?) gotta check in a bit again

so thats just under 60fps

[deft fiber]

"Waiting for vblank" might mean you've already exceeded the maximum framerate so it's just waiting
Or it's unable to hit maximum fps, like 60, so it's targeting half of that and delaying until it's 30

You have to be meticulous about interpreting the profiler information

[past depot]

CPU Main Thread Frame ~15ms
CPU Render Thread Frame ~3ms
CPU Present Wait ~16ms
GPU Frame ~18ms

Oh yea it also says "Present limited"

Looking this up in the development build menu btw

[past depot]

I was getting 90-120 fps when i uncapped it and set my phone refresh rate to 120

Although i guess that makes it run too hot and now its constantly at a stable 60. cant seem to get 120 anymore 😅

I'll try to still optimize some things and test the probe stuff probably too soon

[fallen island]

nah but what the flip happend here again

I did just copied lamp and tf is this

[deft fiber]

You may want to describe "this"
We don't know how it's meant to look

[fallen island]

well

its supposed to look more dark

should be just dark

[deft fiber]

What type of light, and what shaders are the materials using

[fallen island]

Nothing special tbh. I was getting everything from unity

But I copied and pasted it to different scene and the problem is also there

other scenes are good so its only for these assets ig?

so smth is doing it bc if I turn off the "Act5" it goes dark as it should be

ok... so

somehow the bookshelf is doing it??? 😭

but how 😭

it has a sun in its asset

omg that is so stupid

sorry

Im going to fix it now

[deft fiber]

Stupid problems will always be a part of the process
Scrutinizing each step that lead to the problem and removing objects temporarily to eliminate or confirm them as related is the exact right thing to do

[fallen island]

Thanks for understanding

[deft fiber]

In fact we'll never become so smart that the stupid problems won't get us ^^
So only meticulous troubleshooting strategy will help

[supple nacelle]

^^ I find I never stop running into a weird gotchas. I just get faster at making sense of them and fixing them.

I think a lot of people expect things to just work in rendering/lighting - but Unity is not Blender. There is a lot of trickery and tools for trickery to make realtime rendering at 120fps possible, and all of these headaches come from managing those tricks. Nearly every trick brings gotchas with it.

[dapper geyser]

Hi everyone,
Does somebody else has difficulty to bake indirect lighting into APV's ?

[deft fiber]

Nothing besides the expected challenges
That's vey vague

[dusty nymph]

when do i use this vs not use this? i put a volume in there and set it to static and stuff and it blew up my bake

[deft fiber]

"Blew up"?

[dusty nymph]

really odd lighting like christmass lights but im guessing its fine to not use this tab?

[deft fiber]

What kind of "christmas lights"
If you are baking lighting the Environment profile should match the volume profile in your scene that defines the sky

Unless you have a particular reason to bake lighting with a sky profile that's not the same as the one your scene uses for realtime lighting

[dusty nymph]

it seems fine now as long as i dont enable static lighting background clouds and static volumetric clouds

[deft fiber]

What you describe sounds like sample count problem, multiple importance sampling problem, problem baking animated shaders as static, or something else
Hard to guess with little to no information

[dusty nymph]

environment samples?

[deft fiber]

Potentially

If you want to bake static lighting from clouds that are normally dynamic, I'd first check if HDRP has some relevant instructions for doing that

[dusty nymph]

its not so much a want versus knowing which i should be doing

[keen veldt]

So i have this problem with my point lights
as you can see in the video it only works fine when i am the player is close to it Anybody knows how i can fix this problem?

[chilly kettle]

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

My Tutorial should help

[keen veldt]

thanks man

[stone kestrel]

👋

When I bake lights, the shadows go very dark. Is it due to my skybox?

[supple nacelle]

The skybox will be the primary influence on shadow areas yeah, assuming you have no reflection probes

[stone kestrel]

I do have a global reflection probe

[stone kestrel]

Also I've marked both my terrains and the car as non-static and cleared the lighting data, but realtime shadow didn't apply

I'm using Mixed lighting

Why?

[supple nacelle]

Shadow will be dark regardless no? Where are you thinking ambient light in those shadow areas will be coming from?

If you have your light set as baked only, and you set your car/terrain to non-static - I am surpirsed to have any shadow there at all

[supple nacelle]

Your screenshot shows the light set to baked?

[stone kestrel]

That's the reflection probe

[supple nacelle]

Oooh

If your light is set to mixed, then its just going to be realtime for your non-static objects

[stone kestrel]

But you see, I've marked both of them non-static, the light was mixed, and I cleared the lighting data

Then even if I change the skybox, the shadow stayed the same

[supple nacelle]

The shadow without any baked data is just going to be the result of your light and any reflection probe reflections

So what are you expecting there vs what you are seeing?

If you have one light and no baked lighting... then your ground should be pitch black under the car, plus any possible reflection probe reflections added to that

[stone kestrel]

I'm expecting something like this when the skybox changes with the Mixed lighting

[stone kestrel]

Why though? Shouldn't there be a realtime shadow?

[supple nacelle]

It is a realtime shadow, which is 100% shadow from a single point light

and light under the car will come from ambient, baking or reflections - there is no other source

If you have no ambient light source, no reflection and no baking, it should be 100% black in the shadow (unless you set your shadow color to be something other than black)

[stone kestrel]

The ambient light source is skybox

I've changed the skybox to be bright, set everything to realtime including the reflection probes yet it's still like this

[supple nacelle]

Skybox has to bake though

[stone kestrel]

Oh

[supple nacelle]

Because its a complex directional based thing

Unless you have some kind of realtime GI enabled (I know little about that, its too expensive and useless imo)

Which pipeline btw?

[stone kestrel]

URP

[supple nacelle]

You will want your terrain to be static if you want to bake using the skybox

You can still use mixed, and your main light can case shadows on it

So you can drive your car on the terrain and have it have a shadow

[stone kestrel]

So this is how it looks right now, the terrain and the objects are marked as static

This is fully due to skybox , right?

[supple nacelle]

That looks like only the skybox doing the lighting there yea

did you turn off your sun?

[stone kestrel]

Nope, these are the lighting

Increasing it has no effect tho

[supple nacelle]

Something seems odd then, your sun should still be adding to the baked lighting

[stone kestrel]

It's also marked as the sun source

Oh, rebaking it seems to work

So basically, I must bake the lighting in order to have the ambient lighting from skybox, which causes shadows?

[supple nacelle]

yeah, skybox is a super complex light source

[stone kestrel]

I see

[supple nacelle]

definitely not getting that kind of lighting realtime

[stone kestrel]

But if I wanted realtime shadows, what'd I have to do?

[supple nacelle]

Compromise basically. Typically your car if it moves will be non-static and the ground will be static

What happens if you mark the car as not static, bake, and then move the car around?

The skybox lighting of the ground should exist everywhere, and your sun will add to that. What you will lose is the car blocking the skybox lighting of the ground - since that has to be baked and is not realtime

So the ground under the car will be a bit lighter than is natural

[tame mural]

ive been stuck on importing for a while after ticking "generate lightmap UV's" for a single mesh. should i just kill it or wait for it to load?

[supple nacelle]

I have never had it take that long, so feels like its stuck - but could be that is just a really big complex mesh?

[tame mural]

ive never had it take this long either, but its not too complex. only a few hundred thousand tris i think

so i killed the editor but it's still trying to generate lightmap UV's?????

why is UnwrapCL still running??

[tame mural]

i lied its a million tris

[supple nacelle]

Never tried anything that big, though I would be a little concerned about it trying to unwrap that into something that will fit onto a single map

Like any islands at all, and you are boned

With a million tris, that is less than a pixel per triangle by a long shot

[dusty nymph]

often when i make changes in 1 adaptive probe volume, it applies those changes to the other ones too, is that a bug?

[stone kestrel]

Even if I set the car to static and bake and move the car around, the shadow follows

It's realtime although I don't want it to be

[supple nacelle]

You don't want the car to be realtime?

[stone kestrel]

For now no, I'll work on realtime shadows later

[supple nacelle]

The shadow in mixed is going to be realtime, unless you change that shadow mode for that

[stone kestrel]

The car and the terrain is set as static though

[supple nacelle]

If the car will always be static, then by all means make it static

you will get more realistic skybox lighting that way

[stone kestrel]

It currently is

But when I move it, the shadow moves

It's like the lighting isn't even baked

[supple nacelle]

You rebaked after changes the static settings? And what are the actual static sub-selections? The checkbox is kind of fake, the "static" setting for a gameobject is actually an enum

[stone kestrel]

I've set static for children also

[stone kestrel]

And yes, I've rebaked

[stone kestrel]

Oh, let me check

[supple nacelle]

If your light is set to mixed, its going to be realtime still even for baked

[stone kestrel]

Why?

[supple nacelle]

For the shadow part of it. You will however be baking indirect lighting from your main light

Because that is what mixed is meant to be doing. It is giving you baked GI, but the shadow is dynamic since its expecting to have dynamic objects moving around effecting it

[stone kestrel]

Oh, I see. Can I also ask what's GI shortly?

[supple nacelle]

Global Illumination

light scattering

So your sun's direct light in mixed is realtime, which includes its direct shadow. The light bouncing off of what that direct light is hitting however gets baked, since its a much more complex thing that can't easily happen in real time

There are other lighting modes other than ShadowMask that you can look into

As well as ShadowMask mode has two options itself

Are you trying to make an outdoor scene where NOTHING dynamically casts shadows? Even the player and NPCs?

[compact aspen]

Hello guys, i've been struggling for days to bake some lights in a scene

It's a part of a map from Counter-Strike 2

Does anyone know why the floor has those weird shadows? there are no faces overlapping in the UV, i'm going crazy...

[compact aspen]

I figured it out, if anyone has a similar problem hit my DMs

[deft fiber]

Or you could just say it was texel invalidity

[dry bane]

Does anyone know why this weird lighting problem is happening when I bake things? This first image is what my lights look like in real time, obviously you can't have many real time lights so I have to bake them(plus duh performance), but when I bake them they look absolutely abyssmal. I assume its something to do with the UVs of the meshes but I really can't tell because I already unwrapped them again and made sure they were exporting properly.

this is what they look like baked:

[deft fiber]

No Lightmap UVs generated, most likely

[dry bane]

they are being generated, I already checked that fully

[deft fiber]

https://docs.unity3d.com/Manual/GIVis.html

The UV overlap mode lets you visually confirm overlap

[dry bane]

unless something about this is wrong

[deft fiber]

"active scene's lightmap resolution is less than the specified min lightmap resolution"

But first do confirm it using the debug view mode above

[dry bane]

what's this supposed to be telling me

[dry bane]

I have the lightmap res set to 10 texels, if I set this to anything less than 10 parts of the mesh start disappearing in this overlay debug mode so I assume thats what its for

[chilly kettle]

you see your wall is extremly stretched which results in very bad lighting.
I also cant see any checkerboard on the torch which is a sign that the lightmap UV is not correct.

And, as far as i know, transparent Debug visuals means, that its not baked correctly

[dry bane]

everything is transparent its meant to show UV overlay... and the wall is perfectly fine if you look at the screenshots, it uses triplanar mapping as most large terrain objects do, so the UVs are irrlevant.

the checkerboarding on the torch not being present is valid though, I'll see what I can change but I don't know how to fix that

[deft fiber]

This says there are no lightmaps, if it's UV overlap
Is it that one or some different one?
Lightmap debug views are only visible if you've baked the particular scene in the current editor session

[dry bane]

Its UV overlap

also yeah after I baked it it looks like this

baking took a helluva a long time but it looks a little better I suppose

how to I make it so that the UVs are good?

[deft fiber]

The one thing that sticks out is the resolution warning
Lightmap UV generation settings must have the correct minimum lightmap resolution that you're baking with

[dry bane]

I fixed that already

is there a way to set the lightmap UVs manually?

[deft fiber]

Yes, but there seem to be issues where there are no overlaps, at least according to the two previous screenshots

So it might be a light leaking issue separate from that

[dry bane]

so how do I fix that? if I could set the UVs manually I could fix light leaking myself

[deft fiber]

We haven't pinpointed why that's happening

95% of the time auto-generated lightmap UVs don't have any disadvantage over manually generated ones, and the manual process has its tricks

In this type of situation I'd view the lightmaps directly from the lighting window
It shows the UV islands on the lightmap texture, so you can spot things like lighting crossing over from adjacent UV islands

And I would try different lighting placements, often light proximity to geometry can cause unexpected results

You can bake just one segment of the wall and one torch at a time to speed testing up
Preferably in a new scene

[dry bane]

why in a new scene? also when I look in the lighting window for the baked texture the islands for the torches are extremely small, how do I fix that?

[dry bane]

I just have a bunch of textures, is this what you mean by lighting window?

also I dont even know how to tell which are the UVs for the torches

[deft fiber]

That is the one
It seems to be showing a mesh that doesn't have lightmap UVs generated for it

[dry bane]

all the meshes except the floor and the wall have uvs generated

[deft fiber]

If you select a mesh renderer iirc it shows which lightmap it's using and also lets you open the preview window

Everything that gets lightmaps should have lightmap UVs

You can slide the exposure slider to reveal if dark areas are pure blackness, or just darker than the rest

[dry bane]

How do I select the mesh renderer? I dont see anything about a lightmap here

[deft fiber]

"Baked Lightmap" with the expandable arrow

▶

[dry bane]

bruh I'm stupid

Ok yeah the one that I took a picture of is the torch you are correct

but I have it set to generate lightmap UVs why is it just not doing that lol?

[deft fiber]

As long as you hit Apply in import settings after changing it, it should do it for all the objects within that mesh asset

I guess the alternative is that you have meshes from different assets

When you click the assigned mesh field in the Mesh Filter component, it shows which asset it is from in Project window

[dry bane]

¯_(ツ)_/¯

[deft fiber]

In this case I'd make the test scene with just a wall, a floor, a torch and a light, and by following their components' mesh references make sure each of them has lightmap UV generation enabled

[dry bane]

well the actual prefab of the torch that is in the scene is an empty parent with the mesh prefab in it so that I could apply materials and positioning and the area light, but would that change anything

[deft fiber]

So we for sure aren't looking at another torch that comes from a different asset

[dry bane]

yes

they are all the exact same torch

[deft fiber]

Each bit and piece of the torch is a separate object, with its own lightmap UV?

I guess that might explain why the lightmaps are like that

[dry bane]

I mean yeah? I could make it one mesh but then I wouldn't be able to apply materials to each part

[deft fiber]

You could with material slots

[dry bane]

but they are all part of the same mesh prefab and I said to generate lightmap UVs on that prefab

[dry bane]

material slots?

[hollow comet]

I'm looking into some runtime level generation and have been thinking about doing light baking at runtime (which is unsupported by Unity's lightmappers afaik). Preferably such a solution would be fast (only take 5-10 seconds on a moderatly powerful gaming PC) and work on PC, Mac and Linux. The only thing I've found so far is Bakery (https://assetstore.unity.com/packages/tools/level-design/bakery-gpu-lightmapper-122218) but it only runs on Nvidia cards. Does anyone have any ideas for alternatives, either finished libraries or just a paper or article on fast lightmap generation? Maybe you're working on something like this yourself?

[scarlet bloom]

@hollow comet Sadly if you want indirect/baked with procedural the best you can do is bake the parts first then use something like SEGI (Sonic ether) with a mix of fill lights and blending edges with decals if needed - not really any good solutions for it currently

[modern trench]

Hello! Any ideas on how I can keep directional lights from bleeding through the walls and reflecting on indoor surfaces?

[timber lichen]

@modern trench Need more info to help. Do you have a wider screenshot to show your environment and light setup?

[modern trench]

Sure 😃

the house is setup with light probes and reflection probes, no baked GI only realtime

the materials use the uber shader, metallic core

boosted the smoothness / min smoothness for more reflectivity on the floor

[timber lichen]

Is the game set indoors?

[modern trench]

another example

well no its a house placed on a terrain

[timber lichen]

It looks like your reflection probes aren't baking the house correctly if they are inside the house. Is your house set to Reflection Static? What do the baked reflection probes look like?

[modern trench]

all static flags on all house related objects

sec

[timber lichen]

Could it be reflecting the ceiling light instead of the directional light and you are mistaking one for the other?

[modern trench]

nah happened before i added that light, its reflecting the moonlight which you can tell by walking around a bit

maybe the reflection probe volume is too big

does extend beyond the walls..

[timber lichen]

The Reflection Probe Volume only determines what inside of its range should use the reflection data; not what it actually reflects. What it reflects is set in the Reflection Probe Component's Capture Settings (Cull Mask, Clipping Planes, etc)

If you change the directional light color, does the reflection change too?

[modern trench]

yes

It is definitely the directional light (moon/sun depending on time of day) 😃

[timber lichen]

Hmmm, no idea unless know more about the scene. 😃 If your scene and project is small, you can DM me it and ill take a look tomorrow. 😃

[weak wharf]

what's your directional light setting?

[modern trench]

That's greatly appreciated 😃 However the project is unfortunately very big currently 🙄

[timber lichen]

Hmmmm, that might not work. 😄

[weak wharf]

i think that's because shadow is turned off for that directional light

that's usually the case for these kind of bleed through

[timber lichen]

Good point. Does your directional light cast realtime shadows?

[modern trench]

afraid so

[weak wharf]

and no duped lighting?

[modern trench]

its being controlled by unistorm

[timber lichen]

Do the mesh renderers of your house have 'Two Sided' enabled in 'Cast Shadows' option?

[weak wharf]

that is also a good one

[modern trench]

it does not.. should it?

[timber lichen]

Turn it on and see what happens. 😄

[weak wharf]

check the ceiling, if that happens to be a separate mesh

[modern trench]

hehe my heart skipped a beat, but no joy 😐

well there are lots of separate pieces, its a modular house

[weak wharf]

take a picture of the house from above

[timber lichen]

Hmmm, I have to leave now but ill think about it tomorrow and will get back to you if anything pops to mind. 😄

[weak wharf]

does the ceiling looks invisible?

[modern trench]

actually, maybe i misunderstood

why would it look invisible 😛

[weak wharf]

that looks fine to me

[modern trench]

Thanks for the help though, andy, have a good one mate 😃

[weak wharf]

well, i thought the only visible part was from the inside of the house

[modern trench]

Aha

[weak wharf]

well then, no clue lol

[modern trench]

i'm stumped as well lol

figure I'll come back to it at some point to figure it out, maybe I'll get a clue somewhere along the road 😛

thanks though 😃

[weak wharf]

heh good luck

[modern trench]

it disappears if i set shadow strength to 1 on the directional light

[lime adder]

Is it possible to bake lightmaps at runtime? I'd like to build an in-game editor with ProBuilder's API and have the ability to bake lightmaps before saving the map. Kinda like Portal 2's level editor which bakes them when you compile it.

[serene wasp]

currently it's not possible to bake lightmaps at runtime - definitely a thing we would consider doing in the future and have gotten asked about

[lime adder]

Aww that would've been nice

I might just consider a solution where the user can export their map, open it in Unity for baking and then compile as an asset bundle

[modern trench]

Seems bounced light rays do not get blocked objects at all.. is this correct is there a way to achieve this?

[modern trench]

Derp

it even says so on the light

[weak wharf]

You'd probably need something like a realtime voxel raytraced gi or something along the line

If i get what you want correctly

[modern trench]

Yeah problem is bounced light bleeding through walls and floors

[weak wharf]

https://github.com/sonicether/SEGI

[modern trench]

so basically no indirect multiplier for indoor lights..

[weak wharf]

that's always been the case up til now

It's p expensive to do in realtime

[modern trench]

hows the performance on SEGI then?

[weak wharf]

you need a beast pc

[modern trench]

hehe figures

[weak wharf]

well atleast it runs at 60 fps on low with a 750 ti

[modern trench]

thats not too shabby

[weak wharf]

well, the demo

[modern trench]

too bad, the indirect lights really made the indoor scenes pop

[weak wharf]

try it out yourself

well ofc, but they require expensive calc since they replicate real lights

[modern trench]

considering the way clustering works, could you not precalculate that one cluster should not bounce light to another cluster because an object is occluding it.. i dunno

i prolly misunderstood the way clustering works 😛

[modern trench]

So todays problem to solve..

the indoor light is basically ignoring the wall unless i set the shadow bias ridiculously low.. at which point i start getting banding in the shadows

in illuminated areas*

[pale pawn]

@modern trench real-time gi will acknowledge shadow from directional light, however not from spotlight or pointlight. Duster shadowing (shadowed indirect lighting input) from pointlight and spotlight is costly in CPU hence it is not supported. In many cases using spotlight with real-time gi will be fine since the coverage can be limited and the leaking wouldn't be too noticeable. The specular from the moon or sun leaking is most likely an issue of shadow opacity not at 1. In PBR workflow it's recommended to never set shadow opacity below 1.

As for banding in shadow, check the directional light angle. If it's to extreme, you won't get good result. Second, check the Cascade distribution on the directional light and make sure you have the first Cascade to not cover to big of an area.

[modern trench]

@pale pawn thanks. The shadow acne was caused by an indoor spot light with too low bias (which was the only setting that would remove the problem). So I added in some boxes set to shadow only in mesh renderer instead. I'm using the suburbs pack from the asset store, which while having the benefit of being modular, doesn't seem to be optimal for realtime GI

every wall piece is basically one plane for the inside wall and one for the outside wall.. in one mesh

just using them for prototyping anyway so im not fussed

meanwhile I've ran into a new problem 😃 i have a day/night cycle in the game (using unistorm), and i've realised that having baked reflection probes isn't great in that regard

i need to re-render those when lighting conditions change, too often = bad framerate, too rarely = noticeable popping

so i'm considering dumping the reflection probes and just going with ssr

There's a bit of a learning curve in regards to realtime GI, but I'm enjoying it 😃 Though information is a bit sparse and hard to come by

finding exactly the bits and pieces of information that my particular use case requires, that is

not just "this is how you do it", but also how to trouble shoot and figure out what and how things go wrong

[fast plinth]

One message removed from a suspended account.

One message removed from a suspended account.

[modern trench]

that would be cool 😃 sounds achievable but i have no idea.. i have yet to look at srp

[storm bolt]

for probes, you cannot render them "async" only time sliced per face then suffer a stall during the convolution. Work is being done on HDRP to optimise that case, so if using HDRP you don't worry so much

So you would only render the bare minimum change to the probe

[modern trench]

HDRP certainly looks tempting, but I feel like I've jumped on the new bandwagons too soon too many times .. nothing more frustrating than hitting a road block and learning that its due to be fixed later sometime this year 😃

Not sure how much that would be something to fear in its current state

[storm bolt]

It's alright, just different workflow, asset files. Dust definitely settled on it though, and now it's just about making it all ready in time for 2019.3 so yep has rough edges. I've been using it for a while.

[modern trench]

I'm definitely going to look into it and see if i can gauge how much pain making the transition might be 😃 I'm using assets like the uber shader and CTS, not sure if/when the hdrp-updates for those will arrive

or, well, procedural worlds said theyre dropping a 2018.3 update in january maybe

do you roll your own terrain shaders?

[storm bolt]

No I just used Unity's terrain shader that ships with 2018.3 - it has a 8 layer HDRP variant. As for the rest, you will find almost nothing supports HDRP (and doesn't need to)

In the case of vegetation rendering, you will find there's support in Vegetation Studio Pro but it's a bit out there at the moment.

For example HDRP is faster and better looking with (IMHO except for the pixel displacement options) is usually always better than Uber

Uber uses some quite expensive pixel displacement stuff, and HDRP's pixel displacement is simplified for performance (which is what I want)

And there's the whole shader graph support in HDRP which means if it can't do something you can tell it to do it anyway.

But still, not polished (no real docs etc)

[modern trench]

I took the plunge and upgraded the project to hdrp.. and boy am I glad I did 😂

it looks positively awesome

fps improved and some of the shadow issues i had went away

[storm bolt]

It's very configurable but lots to learn and be sure to package manager update it. Note most unity settings don't work. you need to use the asset files instead (same for any SRP)

[modern trench]

Hehe yea im noticing docs are slightly out of date, as are samples and guides.. at the rate its being updated im sure thats gonna be the case for a good long while 😃

[storm bolt]

regarding docs, the docs team with Kat has just finished up LWRP docs I heard!

[modern trench]

wonder if i can make a hdrp triplanar shader for terrain .. or maybe i should just avoid terrain alltogether

[storm bolt]

So congrats to them, and I feel sorry for them going into HDRP 😄

[modern trench]

😃

[storm bolt]

HDRP is fast

even triplanar is quite quick (but the nature of the beast is it will depend on how many textures you're burning through)

if you limit how much bandwidth you're spending (which is a core design tenet behind HDRP) you can start using nice things like triplanar.

it doesn't need to be on everything so YMMV

[full pawn]

Not LWRP docs in general

Like I’m nowhere near done

But a big new chunk is coming real soon

[modern trench]

yea i'd only be using it on steep surfaces, eg mountains

there are people working on the hdrp docs though.. right? 😛

[storm bolt]

yes but expect the docs in 2019.3

[modern trench]

hehe.. so no holding my breath 😃

[storm bolt]

because that's the release date for HDRP

however - all the docs are actually around just hard to find

latest might be on githib

hub

[modern trench]

yea thats where i found the most complete docs

[storm bolt]

https://github.com/Unity-Technologies/ScriptableRenderPipeline/blob/master/com.unity.render-pipelines.high-definition/Documentation~/TableOfContents.md

specifically inside the hdrp

not the old wiki docs

[full pawn]

Yes - there are also people working on hdrp docs.

[modern trench]

ah nice one.. i was using https://github.com/Unity-Technologies/ScriptableRenderPipeline/wiki

[storm bolt]

She is here, avoiding beer 😛

[modern trench]

which was horrible to navigate 😛

[full pawn]

Specifically, we’re a small team of people working across Hdrp, lwrp and Shader graph.

We’re aligning a lot as we go, and working with UX and devs to make fixes in the product itself, not just write docs

I’m the main writer for lwrp

[modern trench]

my impression is that hdrp is still in a state of flux.. do you expect a lot of changes before it stabilizes?

[full pawn]

Yes

It’s a a fast-moving target.

Although, I can’t speak to performance stability, per se - not my area

[storm bolt]

It's grim in the trenches of documentation hell.

[full pawn]

But for docs; as hippo said: expect them for 19.3.

[modern trench]

Well I expected as much, but nice to have it confirmed 😃

[storm bolt]

dives to the floor as Unity programmers change something without telling the docs team.

[full pawn]

My colleague is working their behind off in getting stuff updated on the wiki

[modern trench]

It's nice to get a foot in early anyway

[full pawn]

Haha, yes, @storm bolt, that’s historically been the case

[modern trench]

hehe yea sounds like you got some challenges ahead 😛

[full pawn]

For hdrp and lwrp, it’s gotten so much better.

Both me and my colleague get pulled into so many discussions about what properties should be named and if the tooltips make sense and “btw, we’re aiming to change this a month from now”. So in general, the amount of docs being pushed out is increasing

And all the behind-the-scenes things you’ll never notice ;)

[storm bolt]

Now you've got me curious.

[modern trench]

should not the domain experts be telling you what things are called? 😛

[storm bolt]

But big congrats for Team Kat on finishing LWRP docs 👏 👏 ❤

[full pawn]

Nooo

[modern trench]

btw, whats your affiliation with unity hippo? I see you all over the forums 😃

[storm bolt]

I'm a local landmark

[modern trench]

😄

[full pawn]

Nooo!

Please don't say finished

They're not.

1. Docs are never finished
2. My update was purely for a chunk of shader docs

[modern trench]

that's the spirit

[full pawn]

I sitll have a lot on my to do for 19.1 - how the forward renderer works and differs from built-in

• explaining the lighting model

• updating the Asset doc, because we've redone UI

• giving ya'll a list of shader stripping keywords

All the things!

[storm bolt]

(I became friends with David H and the early unity team then stuck around for some reason as a mod - I do actually dev in Unity though and help staff out be it code, or just having Kat wince at my poor command of the mother tongue)

[full pawn]

Also, Xeethrax; yes and no. I work closely with domain experts. But devs aren't always the best at... naming... things?

[modern trench]

i can attest to that!

..being a dev 😛

im horrible at it, just horrible

also, good to know hippo 😃 was just curious

[storm bolt]

IComparerThingyWotsit really doesn't lead the reader anywhere useful...

[modern trench]

i havent had a look at the lwrp.. does it have its own set of shaders?

[storm bolt]

Read Kat's docs to find out!

[modern trench]

[full pawn]

Like, concerning things you'll never notice:
I was writing docs for LWRP SHaders. I noticed that the same property had three different names; one in each Shader, depending on the type of LIghting used. Asked our QA why, since my verbose description was identical for each.
-> cross-team/area discussions, align with HDRP -> Shaders now named similarly; UI now named similarly; property now the same name across Shaders (in both pipelines)

And yes, LWRP comes with LIt, Simple Lit, Baked Lit, Unlit, Particles Lit, Particles Simple Lit, Particles Unlit and some AutoDesk Interactive Shaders.

[modern trench]

cool, so you sorta double as a QA for devs naming conventions 😛

[full pawn]

Yes.

[storm bolt]

It's pretty cool that you're creating consistency for developers, so we can do more without these bumps in the road.

[modern trench]

I feel the sudden pressure to make sure my grammar is okay.

[storm bolt]

I'd argue that the use of 'the' is redundant in the above sentence!

[full pawn]

I have that effect on people.

[modern trench]

😃

[full pawn]

Back in my raiding days, a guildy actually thought I was perpetually mad at him because I used a full stop.

[storm bolt]

I guess texting is torture eh? 😄

[modern trench]

Haha 😂

[full pawn]

Honestly, my fat thumbs keep getting me in a whirl of trouble - "I thought you were good with writing" - well apparently not on an iPhone!

[modern trench]

I can relate.. whenever you start being grammatically correct, it sounds somehow formal and creates a more serious tone.

[storm bolt]

At least you don't press the entire phone like I do.

[modern trench]

I truly hate texting on a phone

especially with touch screen keyboards

add autocorrect on top and the frustration peaks

[storm bolt]

@full pawn one day u will 'ave to let ur hair down and just say somefing tottally sloppy.. its like junk food with bad spelling, horrific punctuation and more!

Let ... go

Tis liberating, honestly.

...innit

[modern trench]

u bri'ish?

[storm bolt]

Yep unfortunately. I'd use correct grammar but I can't given the state of brexit. Somehow it's all gone pete tong.

[modern trench]

lmao 😄

Brexit is all over norwegian news papers. Mostly about how it affects us, of course.

going to london in a couple of weeks actually

[storm bolt]

Nice! well not nice, since there's not much nice about London really, unless you go to a nice bit. But at least the weather is reliably pants.

(feel guilty chatting here OT lol)

[modern trench]

somehow we tend to luck out on the weather 😃 been going every year for 9 years now

[storm bolt]

Yeah? how come

[modern trench]

Oh, right. Yes, sorry about that. I shan't stray from topic!

work thing, gaming convention

[storm bolt]

just continue in ot bit if you want

[modern trench]

Aye 😃

[cloud plaza]

Hi all. I'm a programmer and I'm trying, for the first time ever to learn Unitys Lighting. Are there any in-depth resources you would recommend besides the official docs?

[hoary pasture]

I liked catlikecoding's walk through

https://catlikecoding.com/unity/tutorials/

looks like he's got walkthroughs for both the legacy pipeline (which I enjoyed) and the new SRP stuff

Specific section where he starts going into lighting - https://catlikecoding.com/unity/tutorials/rendering/part-4/

might be too basic if you're familiar with some of these concepts from other engines

[dapper brook]

I'm trying the GPU Lightmapper on a fairly simple scene (sponza) and I instantly get the errror on unity 2018.3.2f1 OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_OUT_OF_RESOURCES
With a 2080Ti and ridiculously low settings, any idea what could be the cause ? I managed to bake yesterday on the default HDRP example scene but today, nothing

[dapper brook]

I worked on some other irrelevant stuff and tried again and now it works, so it's fixed I guess :x

[pale pawn]

@cloud plaza https://docs.unity3d.com/Manual/BestPracticeMakingBelievableVisuals.html

Comes with the sample project. The documents currently is for built in renderer, but the base knowledge are still going to be relevant.

[timber lichen]

@dapper brook what gpu do you have

It needs a ton of vram

Oh nm

You sad 2080ti

I’m stupid lol

I would recommend Radeon 7 for it since it is based on Radeon rays and the extra vram

Plus Vega’s performance in blender if you use that is great

But if it ends up defaulting to cpu that likely means vram maxed out

You also need a certain driver version for nvidia gpus if I’m not mistaken

[storm bolt]

I don't really recommend picking up hardware to solve Unity's PLM right now as the PLM is likely to cancel its jobs for other reasons, so bug reports if any would be a safer move if you already have a card with a decent amount of ram.

[cosmic breach]

Can someone help explain how mixed lights are supposed to work to me? I feel like I'm missing a huge piece of information based on what I've read and experimented with.

The house I have is completely static,, every object in or a part of the house is marked as static (double checked Lightmap static is checked as well) with the only dynamic object being the character.

When the lights are set to baked, I get roughly 3-400 draw calls. When I set them to mixed, then generate lighting, I get 3k-4k draw calls as if everything is being treated as dynamic in real time lighting.

Shouldn't I be getting something only slight above the baked lighting since everything should be baked except for the character object? I'm in 2019b1 and using Progressive GPU.