Perfect Eevee bounce lighting with (and without) irradiance volume light probes in Blender

[@Fork_N_Potatoes]

I think I've watched every Blender irradiance volume video on KZbin but without getting negative with other content creators, just thank you so much. I had some really simple questions that nobody was covering and in this video, you hit ALL of the basic key components. Thank you.

[@poopchap]

This is probably the most informative video I have seen regarding irradiance volumes. Well done

[@liambuffat3731]

I have been using Blender for several years now and your tutorials have given me so much insight into modeling and lighting. Every so often you slip in some basic tool I wasn't aware of that makes life so much easier. Now if I only had some artistic talent.

[@arianullah6257]

Hope one day EEVEE gets real time GI like Godot 4.0 and Unreal Engine 5

[@deprilula28]

Neither of those have real GI

[@kettenotter]

deprilula28 I would say UE5 has real GI. It’s not completely raytraced but that doesn’t mean the results have to be worse. I couldn’t really tell a difference between full raytracing except that there was no noise but a tiny bit of delay.

[@blinded6502]

Or Unity.

[@nitinsharmax129]

vulcan will bring gi to eevee

[@Lord2225]

there is addon for screen space gi in eevee

[@MetalGearMk3]

we are headed to real time GI via Vulkan for EEVEE.

Another approach would be automated detection of probes which are inside objects and taking them of from interpolation, and maybe automated distribution of probes evenly, not in ortho grid.

[@EmirUysal]

sounds very good. what do you say, developers?

[@sinisters9237]

Wow, I’ve only been doing modeling recently and lately wanted to dive into setting up scenes for my models more and this was super helpful

[@longshot9058]

SBGL is an add-on for EEVEE and I think it’s implemented one on of the versions of blender. It does real time global illumination like Cycles but it does by using screen based sampling

[@justsumCrumbs]

"Do a million things just to get okay lighting."

[@davidrozier1126]

It's a useful skill to have. You never know when you might use software that doesn't have global illumination.

[@sasaha8389]

thank you sooo much for this tutorial!!!! Wow this solved sooo many problems i had in the past with eevee and lighting in general! I also have the course, but did not had the time yet to watch it, I'll do that in the upcoming months

[@goldenlegend4018]

Also you can get an addon called screen space global illumination to get global ilumnation

[@issac7787]

very complicated but probably will be helpful one day, saving it for future reference

[@oscarlamprecht1978]

CG Cookie: "These are just spheres for demonstration" Me: _Places light probes, tries do enter edit mode_

[@aryaman3083]

😂

[@alejmc]

Didn’t know Blender had these. Indeed, on other softwares it’s easy create custom scripts that setup the lightprobes to be culled out if they happen to be inside geometry (blender could add a collider temporarily to the objects and check if a light probe is inside), or to project them out towards the geometry surface or follow the floor. Would be great if these were added to avoid all the drawbacks related to that.

[@DjChronokun]

for the static parts of your scene, at least for the diffuse, you can just UV unwrap and bake the lighting to a texture using cycles, then use that as an emission/shadeless texture for your materials using Eevee can probably do even better using complex node setups though, would be cool if there was like a one-click 'bake spherical-gaussian lightmaps' or something, like you might use in a game engine

[@Ponlets]

issue with that is then the baked texture wont effect characters or dynamic props though static shadows will look better when baked with cycles

[@iinxva5161]

Great timing I was looking for this 😂 thank you!

[@kaleabtsegaye6323]

thank you, much appreciated

[@arthurbourdot8765]

Very usefull advices ! Thank you.

[@goshawk_fly]

Cool idea!

[@vitos1k]

Aren't you able to create 1x1x1 probe with custom falloff and place it every where. It might, actually, be possible to create an Animation Node setup to fill the room with such probes with fallofs and that doesn't intersect through geometry

[@BobbyJ529]

he did mention the problem of multiple separate irradiance volumes not blending properly.

[@oguzhankaya7046]

Thank you.

[@kanesmith8271]

Thank whoever made raytracing

[@DocWolph]

Radiosity is the next big step for realtime raytracing, or at least for EEVEE. A simply matter of adding light bounces along the same lines of thought as reflections in raytracing. I would expect it by Ver 2.91.

[@billycausey4277]

here we are at version 4.0 and its still not a thing

[@ASOwnerYT]

*Laughs in SSGI plugin for Blender*

[@VortexTheBreadMan]

@@KositarFilm the plugin does overall scene GI through screen space reflections

[@marcelosantos5683]

yeah, I'm coming here because the plugin is broken for me

[@eevee6155]

@@VortexTheBreadMan does it work in animation as well ?

[@Batman02092000]

Amazing tutorial...!!!

[@PauloSamurai]

Very cool! Thanks!

[@konichiwatanabi]

If I alter a glossy procedural texture, should I rebake? What other scenarios would it be necessary to re-bake? Thanks for the info!

[@playworldtamil6391]

thank you

[@skilbhumen2875]

your the best!

[@simohamed7848]

شكرا

[@Zi7ar21]

At this point it's just more convenient to use Cycles

[@scale...3d]

How am I supposed to animate it after I bake it? I tried doing that but the surface reflections don't change according to the external environment changes. Is there a way to do that?

[@eevee6155]

For animation stuff Light probs are useless 🙂 Uss Gobos (paid add on ) for realism

[@PaboBabo]

Or using cycle + rtx 3090

[@stuffystuff1661]

that's sad, evee still lacks basic features like seting up light probes in a custum way.

[@DimitriTorterat]

This is a known trick for Eevee. Now I wish the light baking we do with irradiance probes would work in Cycles as well…

[@JJanim8s]

How does your blender UI look like that?

[@lic.josechavez8837]

Siuuuui

[@64Hundid]

Awesome

[@peeer.mueller]

Just use the free Eevee ssgi plugin

[@hexil6283]

well yeah this is a new thing

[@igorthelight]

Did something improved since this video? ;-)

[@lucutes2936]

but how do you bake an animation with indirect lightning?

[@eevee6155]

It won't Useless for animation

[@RomboutVersluijs]

Looks nice on interior shots, but outdoor shots with hdr and a sun. The irradiance volume is knda of a joke

[@itstommymate]

Finally

[@admorris3898]

You also can't link baked lighting from one scene into another which is kind of annoying.

[@culpritdesign]

Global Illumination

[@drinnerd8532]

Sorry, can we start over... or even go further back in time here? Like, WHAT is the point of light probes? What's the point of throwing them all over the place? Can someone help me understand, please?

[@cg_cookie]

This is covered really in-depth in the course that's linked in the description, but the point is to simulate bounced lighting in a way that can be used in real time.

[@drinnerd8532]

@@cg_cookie okay, thank you. Sorry, I hope my question wasn't annoying. There's still so much that doesn't make sense to me about Blender. Thanks again.

[@cg_cookie]

@@drinnerd8532 It's a lot to learn! No worries at all!

[@fixieroy]

Ive been doing it wrong all this time 🤯

[@Megalomaniakaal]

Darn, so you have to do stupid things like scale the volume rather than having values for bounds and keep it at normalized scale. :( Guess I'll not use it.

[@RomboutVersluijs]

its kinda typically blender, they add something and then dont develop it further. Happened and happens a lot, sadly

[@discreet_boson]

Yaaaaay

[@pikachufan25]

Wow after looking at this video it makes feel such a Noob xD

How to solve blender lighting in one step: Render > Cycles. I feel like eevee has a long road ahead before it can be as great as it promises.

[@hypersonicmonkeybrains3418]

Alternatively get E-Cycles and an RTX 3080ti

[@DarksideLegendary]

Too much random crap. Just tell me how to do it without bouncing back and forth between what X thing and Y thing is called and why. Like, "Wow. Lighting works differently the closer and further an object is! No shit."