Bloom.

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Thumbnail was rendered in Hazel.
SOURCES:
📈 An example of CRT bloom (this video shows two types of bloom!): • An example of CRT bloom
📈 Learn OpenGL Bloom tutorial: learnopengl.com/Advanced-Ligh...
📈 Sascha Willems Vulkan examples: github.com/SaschaWillems/Vulkan
📈 Next Generation Post Processing In Call of Duty: Advanced Warfare: www.iryoku.com/next-generation...
📈 Unity's bloom shader: github.com/Unity-Technologies...
TIMESTAMPS:
0:00 - What is bloom?
3:00 - Creating bloom in Photoshop
6:22 - Bloom tutorials
10:30 - How bloom works in Unity
19:32 - Bloom in Call of Duty: Advanced Warfare
22:34 - Bloom in Hazel
This video is sponsored by Morning Brew.
#Hazel

[@TheCherno]

Hope you all enjoyed the video, let me know if you want to see more like this one! ❤️ HUGE thank you to Morning Brew for keeping my juice knowledge relevant and for allowing me to spend so much time working on this video! Sign up for free here: cen.yt/mbthecherno

[@sigurdskaga5524]

Loved the format of this video. Well done.

[@nexovec]

This is actually the best format you've tried so far.

[@nullbeyondo]

I like it a lot.

[@domjanabi6006]

first 30 seconds got me hooked i think this is a nice format

[@devtry]

Really enjoyed it, I'll look forward for other videos like this

[@octaviosilva5808]

Whenever i feel overconfident about my code, this man humbles me down

[@user-si9jy3zs1j]

lmao this message is perfect with that pfp

[@sanjayshorey4225]

I was feeling like a software engineer after printing sum of two digits. I came to this channel to get humble. We are bros.

[@Danidev]

Great video Cherno!

[@ganes1612]

Hello, Dani!

[@rashmigoyal2629]

Is He Still Alive ?

[@rashmigoyal2629]

I Thought He Was Dead

[@siddharthasarmah9266]

Was playing MUCK, why don't you make the game a bit easier?

[@rashmigoyal2629]

Why Don't You Try And Make A Game Without An Engine(Or You Can't Do That) :)

[@agsamani5701]

10:17 OMG A freaking RENDERING COURSE. Can't wait

[@pat917]

No way I missed that thsnks

[@CodeMonkeyUnity]

Wow excellent video! I never thought about the inner workings of Bloom, I learned a lot, thanks!

[@michmich6645]

Whats up checkmark

[@R.B.]

@@michmich6645 verified account. Code Monkey has a lot of good Unity content.

[@bloom._.9725]

Yeah no problem

[@hevlp]

i got ur ad in this video 👌

[@rdxrid]

Wow, Unity boss is here!

[@meanotaku]

The ultimate channel for learning about game engine I came for learning C++ but stayed for the Engine

[@nofeah89]

Hey, I'm trying to learn but get confused with terms like texture and bump maps etc? Do you recommend any playlist from the cherno?

[@sanjayshorey4225]

Is this engine petrol or diesel variant?

[@nathanlakeland2953]

@@sanjayshorey4225 electrical engine, nvidia variant. run with electricity from shiny pikachu

[@gregwaste2594]

One of the best videos you've made cherno. So comprehensive. I wish the rendering course will be full of that stuff. Keep it up.

[@tylergoodwyn1534]

this

[@NamePointer]

I actually used the Bloom tutorial from learnopengl and always wondered why it looked so bad. I've always though bloom was just a very simple two-pass post-processing effect and now I finally see how wrong I was. Thank you so much for making this video!

[@bryanlozano1741]

Hey! I like your videos. I guess you used that learnopengl Bloom for the sun in your gravity simulator? It would be interesting if you could try to implement this bloom effect and make a video about it :)

[@NamePointer]

@@bryanlozano1741 Hi! I'm happy to hear that! I did indeed use learnopengl for the bloom in my gravity simulator. If I ever come back to that project in the future, I will probably improve the bloom effect, but I wouldn't make a dedicated video about it (because this one exists) but it could be part of a third video in the gravity simulator series.

[@barj]

This was an awesome style of video dude! I'd love to see more stuff like this :)

[@alonsorosadogarcia8082]

I quite liked the effort poured into this one! The format and the explainations were really neat.

[@ipotrick6686]

This new style of video is GREAT!

[@santi5655]

this is the kind of video i want to see. thanks cherno

[@Gunslinger962]

This new video format though 😳

[@3DevSoftware]

I loved the format of this one Cherno. Very informative and a joy to watch. Thank you.

[@alexo.o418]

Great video! I especially liked that you referenced the CoD presentation. However I have a small nitpick with the implementation: bloom should not be added to the scene color, as adding increases the brightness of the image. This way the bloom magically creates energy out of thin air, which is at odds with energy conservation. An alternative is to lerp the images instead, the interpolation factor can be used to control the strength of the effect. Apart from being energy conserving this has two benefits: firstly the images with and without bloom will be similar in terms of overall brightness. Secondly the thresholding can be removed, which results in a more natural effect. The latter is also mentioned in Jimenez's presentation.

[@blacklistnr1]

I have a small nitpick with your nitpick: Provided that the adding occurs before the tone mapping, or that tone mapping handles it correctly, no energy is created out of nothing, since tone mapping, a.k.a. crushing the range, destroys both energy and detail information such that you get something realistic/visually pleasing. Lerping will actually give you a worse visual result since it's linear whereas tone mapping can have nonlinearities which better model how light/camera behave. And lastly, a game engine's job is to fool the eye as fast as it's possible, not to run a full physics simulation which preserves all invariants. I don't think there are any physically accurate real time game engines, they all use tricks and approximations.

[@Mempo1]

@@blacklistnr1 Bloom is typically applied on top of the non-tonemapped result of the physically based lighting result so it does break the correctness of the PBR theory. Personally I'd prefer the lerp because its less of a magic number compared to having a threshold.

[@blacklistnr1]

@@Mempo1 "Less ... magic" :)) love the reason, perfectly valid. My point was that adding a thresholded bloom before tonemapping isn't "bad" and lerping images to preserve energy isn't always visually pleasing as it can muddy gradients, as the standard RGB color space isn't uniform to our eyes, so you need some non-linearities to make it look good. By the time you're in the "what does look good to a human?" part, physical correctness falls a bit lower in your priority list.

[@Mempo1]

@@blacklistnr1 Fair, I'm not sure which one of the two looks better in practice but if its recommended in the cod presentation it probably works well in production. should also consider which parameter is friendlier to artists

[@blacklistnr1]

@@Mempo1 Oh boy, I remember my first experience with the v-ray renderer. As an artist you open settings to get rid of some noise in the scene and you get 1000 algoritms, metaparameters and choices. I can only hope that artists have it better nowadays

[@gebriish]

I like this new format JK , I love this new Format

[@Test-iv4pm]

Need more videos like this from you for more visual effects. This 'Bloom' video is still the undisputed greatest video on youtube, 2 years after its release.

[@dimitribobkov-rolandez5729]

This is probably one of the better explanation of how bloom works that I've ever seen, especially with the photoshop part. Liked and subbed!

[@lennyphoenixc]

The production quality on this one is incredible, awesome work!

[@GonziHere]

I like your videos in general, but this was absolutely the best. So much information, so much research, great format. Perfection.

[@Futureblur]

Wow I love this new format!

[@TheTimster02]

This video is really great to watch, keeps things interesting while still being informative and in-depth

[@Mystixor]

We asked for a Bloom tutorial, you delivered right-away. Awesome, keep it up!

[@gholamrezadar]

Searched for a good bloom tutorial everywhere on the web, couldn't find any! and the next day youtube recommends this Amazing video! Thank you so much.

[@deformercr6680]

Phenomenal video, really great deep dive into the inner working of bloom, introduced in a really intuitive way. Can't wait for your course!

[@MrCarburettor]

Great video!! So happy to hear that a rendering course on the way!!

[@nicolaskeller9511]

Excellent video, the step-by-step analysis of another engine where you show each texture was the best part of it all. Thx!

[@simonbaxter8001]

Fantastic video Jan! This video style IS definitely the way forward.

[@olkris2666]

THANK YOU DUDE !! I've been doing research on bloom for a few months to implement it into my drawings and make a tutorial about it. This basically confirms all of my research. However I didn't know about the downsampling technique, thank you for sharing it.

[@SiddharthMandhata]

Hey Man!! Awwweesommmeee video!!! Hats off to you!! Last year I learnt a lot of new things about C++ from your series and subscribed to your channel after that. After that I found a bit of change of style in several videos, which was not to my taste. But this video was in the same "fun to watch" and still "providing so much new information" zone. So glad to have you back! Lots of love and appreciation! :)

[@bulentgercek]

Man, that was unbelievable work to learn all the details. Excellent presentation. You did it again! Love you, keep it going!

[@6aston6ames]

Dope Video! I was waiting for it. Thanks!

[@InfernoTNT]

More of videos like this. The style is just right for learning.

[@LittleRainGames]

I knew about the down and up sampling, but the photoshop example really solidified it for me. GREAT video

[@guilhermesenko]

I usually don't comment on videos but I think this one deserved it. Very well thought out and brilliantly presented. I hope we see more content like this in the future!

[@revesx]

1:12 overuse of the bloom effect really causes discomfort, thanks for sharing! Awesome video format, so much work, research and experience in one video.

[@Mugistan]

I literally can't wait for the next video This looks amazing

[@Test-iv4pm]

I come back here every few months just to rewatch the best video on youtube :)

[@ZoruaTheTrickyFox]

I understand it might require a big effort but I'd love more videos in this format.

[@StevenMartinGuitar]

Great approach to making this video. Lots of great information explained with examples

[@michaeloconnell145]

I think this is one of the best video's you've ever made! Thank you!

[@northhamptonshire]

This was a really well put together video and really nice result! Good job!

[@kamran_aghlami]

Fantastic material right here! I'm really digging this format. Great one Cherno!

[@avram_traian]

this might be one of the most coolest youtube videos ive ever watched! hope i'll see this type of content in the future

[@sigmaroxt9631]

This new video format is so good. Keep up with the good work man!

[@GameDevBits]

Wow, this was fascinating to dig into. Thanks so much for all the details. Learned so so much from this one.

[@EmersonPeters]

This is AWESOME! These types of videos make the world better.

[@JakeDownsWuzHere]

this is great! thanks for putting this together!

[@gouravkd8545]

Man, this is Fantastic!! I love the way you explain this. I just don't have words to appreciate. AMAZING!

[@prajwalprvce]

Love this new format

[@whosnooby]

Please make more of this!

[@UnderdogDen]

I love this style of videos, this is awesome!

[@RadicDotkey]

Thank you. Very well done presentation. I've been waiting for it.

[@HAWXLEADER]

I love this video! It's even in landscape mode!

[@MecegguemMohamed]

very good explanation of the bloom effect, thank you :)

[@falxie_]

Been seeing your stuff in my feed a few times, is the video that's made me sub

[@fudgeracoon2529]

That's a neat format, keep it up!

[@LogicEu]

Incredible video Cherno, thank you, will be waiting for that excellent sounding renderer course.

[@arash1934]

Epic intro, epic graphics, epic ad, epic humor. This video is absolutely epic! Thank you for the effort you put into these videos cherno!

[@masondeross]

My conceptual understanding of what bloom actually does is much better now, thank you.

[@gillian6792]

that was cool and very nicely polish. I enjoy it ! Hope you enjoy making it.

[@xsandre-l]

Omg i cant wait for the rendering course!!

[@adibattie9619]

Fantastic video! Well explained and structured. Learned a lot!

[@Tal__Shachar]

Incredible video. Such high quality and dedication

[@CYON4D]

An excellent explanation of the bloom effect.

[@jeffbulljr3733]

This is so awesome!! Thank you for this!!!

[@martonkos5775]

The quality of this video is amazing.

[@bharatr3260]

Absolutely fantastic video! I am implementing my own Vulkan based game engine and thought bloom had something to do with fragment shader lighting! Didn't know it was such a complex effect...

[@Kaldrax]

Really great explanation. Love it!

[@maxximus8904]

I generally think I have a pretty good grasp on how the 3d graphics I work with are made. Even though I'm an artist, I love to see all the technicalities behind the scenes. I learned a lot watching this, never knew it did so many passes! The bloom in unity's HDRP starts with the threshold all the way down or something strange like that because it's "physically accurate" I can imagine it just blurs dark pixels less and bright pixels more. The gears in your head really start turning after watching something like this! I would love to see more videos like these! About: lightmapping SSAO Voxelized effects like VXGI and VXAO the all-new Mesh shaders There is so much to learn and know!

[@sanjayshorey4225]

Thank you for this great information.

[@AmazingMaxStuff]

Awesome video! Thank you so much

[@Test-iv4pm]

This is a great video, thank you for making it

[@stasdev]

👏👏👏 I like how you upgraded all the aspects of the video A more clear explanation, a little bit of humor, lots of examples and analogies Can definitely see that a lot of effort was put in these 26 minutes

[@angela_jx]

This was fantastic thank you

[@PDivision1]

Thanks man, missed these slides. Will fix bloom in my engine :)

[@daniilpoliakov5346]

Wow, I really enjoyed the video!! Great work!

[@michaelgevlich2770]

Finally, someone have said it! Thank you! I tried the lessons and completely refuse the result in my project! I'll give it a try again!

[@GreenDave113]

Absolutely loved this more technical video focusing on one effect. Please do more!

[@markhumes2645]

Great video! Very well put together

[@scott3489]

This is really an excellent video!

[@devdeev3675]

Awesome video, would love to see more videos like this

[@Pspet]

Best format yet

[@creativity5155]

This video is bloody magnificent.

[@mneher97]

Love the format! More like a video essay. Though I suppose it takes a lot more time to make than your typical style vids...

[@JMRC]

One of your best videos.

[@tim_arterbury]

Awesome explanation!! Thanks!

[@blaxxun75]

Very Interesting Insight. Thank you

[@CaptainJeoy]

This is a really great video! My goodness, I really love the world of computer graphics! It can just be really frustrating some time, y'know as many things are not very well documented.

[@brightbluesmurf]

Very nice explanation thank you

[@newbiex11]

I liked this new format, it's easy for my to understand

[@mateuszbahyrycz7003]

Great video, waiting for more

[@furroy]

one of your best videos!

[@rishimenon7821]

This was amazing!

[@quickspace861]

Nice explanation!

[@adgd]

Amazing content!

[@ehrensto]

I'm not a game developer, but I am slowly getting into video making and a bit of VFX. And knowing how computers simulate bloom helps me understand how that'd work in a program like After Effects. Thanks!!

[@DanielMo0]

Sickovicz. Thanks 🙂🙂

[@m5rian]

very interesting video! good explanation

[@BeatCrazey]

Holy shit this is mindblowing! Never expected such a quintessential post-processing effect to work like this :D