thank you for making this video! a lot of youtubers just make a devlog and skim over the details, which is a shame because i love seeing how things are implemented and what solutions they found to various problems

53 minutes of C++ implementation for real problems. Looking forward to watching this

Thank you! Very nice, casual, and descriptive. I would say, these kinda of review/informal kind of chat after a main video is great! I understand if they are exhaustive or more work. But I like the deeper off the cuff dive after the more entertaining and thought out dev blogs.

Im glad you made this video because I've been working on my own game engine in c++ for a while after being inspired by some of your videos a long time ago and I think it will be quite useful to compare my code structure to yours and maybe this will help me on some problems that im currently having! Keep up the good work!!

Your codebase looks well designed. I got really inspired by this. Thank you. It's a great video format.

I was legit asking myself how some of your code would look during/after watching the summary video. It's been about 5 years since I last programmed C/C++, very interesting to see some of the modern stuff.

Really cool video! I love long talky videos, your streams were also great so I'm excited that you are considering doing more of those

Ever since you uploaded the Minecraft video where you start on this engine, I’ve been working on my own engine in rust. Every time you upload I’m just amazed at the progress you make. Anyway, thanks for the great video, keep it up!

This is utterly amazing! I've already learned a lot from the first watchthrough, like macros, using ECS & OOP, and about memory allocation. I will definitely be rewatching this as I work on my own C++ engine, and I'm so glad I discovered you!!!

Not sure if you've read any of it, but the devs of the game Factorio have an amazing dev blog that they release every friday where they've taken deep dives into problems that they're facing, and how they go about implementing them. Obv it'd be a lot of work but I think it'd be cool to see a more detailed narrow focus on how you fixed specific things as you go. Loving the development updates btw, it's been so cool to see this channel evolve from the first minecraft video

Just started learning C++ and managed to split some strings with help in around 6 hours. I think I make a similar project now. :) Jokes aside, i really want to use c++ for some gamedev and maybe make my engine some day so this video just came around the right time. Thanks for the entertainment in these past few years, keep it up legend.

Always cool to see how other people do things! I love your "macro garbage" for tracking types. I was discouraged from using macros early-on and I never really went back to find the places where it makes sense to use them, i think this looks like a solid example.

Dude, you're building your own computers and game engines... I gotta get my shit together and do something myself too. Thank you for inspiring me and keep up the amazing work!

Another video? We are BLESSED

This just popped up on my feed. As someone who writes engines in C, I basically live by the "You can take a C programmer out of C, but not the C out of a C programmer" bit 🤣. Interesting stuff.

Great vid man! the inheritance-based design definitely has its uses, but I also favor composition for games where you have a lot of similar entities with slightly different behaviors.

this is way more interesting than"ok so I put this line of code in to make this happen" then dont explain it at all. As a hobbist game developer I really appreciate this and thank you. I hope to see more code walkthroughs like this pop up.

Very exciting format! Please do more of this stuff

not only he's an excellent programmer, dude is fu*king handsome too.

Dude I have been waiting for this to happen, this is so sick and I love the "lecture style." Man I love the DIY aspect of making your own game, ON YOUR OWN ENGINE. Lmao, keep it up man. Edit: I also much prefer the new font, it is less minecraft like. Edit 2: Do you think this will ever be available on steam? (Or on the git hub, but I don't think anyone would be angry if you monetized it and sold it on steam)

I was just thinking yesterday how nice would a video like this be, and voilá! Thank you for the video, and I hope you do more of these detailed videos.

Very cool! I'm not even close to a point where I could understand any of this, but it was still very fun to listen along and try to understand at least a tiny bit :> You have a soothing voice to listen to!

Thank you for the code walkthrough! I really enjoyed your description of your work. I was just wondering how you do the searches with your neovim config? Other than that, I really enjoy your content and it’s super inspiring!

I've programmed some small projects with my Arduino. Currently in our class we are trying to do more complex stuff with c++. And to see someone building a game engine with c++ is great!

Always excited for a jdh video!!

Man, this is epic! I always want to know the reasons why people make the decisions they do. Helps for our game dev journeys!

This was super cool! I hope you make more of these types of videos

Thank you for going through this!! Really great to see how an engine is architected. I'm planning to build an engine in JavaScript based on BabylonJS. So much of the design patterns can still apply. Code would of course be completely different. But you really used some good and interesting design patterns here. I can see how you followed the factory pattern for your entity components. Good stuff!! Thanks again!! :-D

I actually really wanted a video like this, thank you

Dude you're an absolute gem. Love watching your game dev journey! Godspeed!. Dude you're an absolute gem. Love watching your game dev journey! Godspeed!.

Absolutely love your lectures. I would love to see one for your Minecraft in 48 hours video 💙

This makes you feel that your programming carrer is a joke 😂 amazing work man! keep it going, i want to see this project grow

Hippity hoppity your code is now my property But in all seriousness, you are just incredible. The fact alone that you can code in c and even do highly complicated tasks in OpenGL… Cudos.

a one hour jdh video… am i in heaven?

the code looks beautiful!

I sense that this video would be useful if I knew c++

I really enjoyed this video, I agree that more of these would be really cool to see. Have you ever considered teaching CPP/game dev this way at all?

LETS GOO ANOTHER VIDEO :D I've always wanted to make a game engine... (also i found that programmers often use // in their video titles instead of like | or something.)

I must say you are riding at the apex in the new wave of engineering right now. I wish i were even half as talented

bruh I can't even make a simple game in unity

Hello big nerd, big nerd and a fan of your channel here. You're really the only gamedev channel I follow right now, really top tier content. You plan on making multiplayer features for this? If not full multiplayer, consider a dark souls / elden ring type multiplayer? Would at least be fun to code networking stuff.

Subbed, this is amazing content. Random noob question about the BumpAllocator, is it bumping up or down?

Dude this is amazing!!!! Thanks for sharing!!!

I really appreciate you doing such a video, there's a lot to learn :D I also think your amount of use of `std::unordered_map` is very comical xD

This right here most avoid, thinking people wont watch or learn, I'm glad your not the tow the line person, and work against the grain of let some other program do it, or advise people to visit messy forums that tell little about your custom approach. You have my appreciation and gratitude for your work and expertise, but even more for your in depth look into your code logic, and explaining the coding, and your thinking on the route you took. This puts you lightyears ahead of a lot of tutorials, that often only partially explain or like I said before point you to some forum that explains little to nothing and seemingly an ongoing research project instead of study which comes to the conclusion of knowledge and properly used experience, which is the same result in advising a program to run their code and explains little to nothing about their line of thought or the code. Thank you for not being lame, and pretending to explain things which only beg more questions. Not that you should take time to explain all terminology in use of the video, but would be nice to have in description for the key terms used. SO people maybe not as researched a me can also know the reference and meaning of the words you're using in your presentation. A minor nit pic on my part not crucial to those who are going to do their homework anyway. I like your style of layout/structure, it is more organized, and optimization is usually a better idea once bugs are worked out and game functions properly in accordance to desired functionality and desired result. Then makes sense to go back and clean up code, and optimize. pre optimization can and does ruin the progress of many games. Only certain practices in front end optimization aren't detrimental to overall development and usually applies to API's not so much what your doing here from scratch. The main benefit you have is customization, the only disadvantage I see, is portability. Your code maybe less robust than the API driven engines, but is far more manageable to the individual coder, than having assist programs and three libraries open looking for the mistake written in API driven engines, which actually slows the computer and overall progress. Which most API's lack comprehensive interpretation of code, unless towing the line, and remaking what's been made already, and is frowned upon among gamers.

if you’re converting from lab to rgb often, you might want to consider using oklab instead of cielab (i say “sea lab” no clue if that’s correct). it’s better for hue and chrome representation and comparable for luminance, but it’s much simpler and faster. the reference implementation is in c++ so it should be easy to bring it in. also the author has made color spaces comparable to hsl and hsv using oklab which could be useful for stuff like colored lights the user can set the color of, or flowers that can be bred to have different petal colors, or whatever, with a space that both looks right and is easy to use (like having saturation instead of chroma so out of gamut colors are less of an issue). he also has an article on gamut compression so you can transform colors and reduce the inaccuracy when converting it back to rgb

you have a really nice setup with your terminal and macos!

What plugins are you using in neovim? Greate video!

Thank you very much for this! Exactly what I needed

Holy shit en fantastisk video. Din tekniske viden er vildt imponerende, er det primært selvlært, eller noget du har lært på UNI etc?

Really like these types of videos

If you ever make a course, making an engine like the one you have from start to end product with some kind of playable game, I would pay for it. I'm sure many others would as well.

I love these types of videos!

This looks pretty good and I appreciate the C++ written as though it was C style. The organization is quite nice. I like your color scheme and I'm wondering if you're using tmux or if neovim has all that built-in? Also, what *was* that at 49:27 ?

Currently writing a console game engine with graphics and all that good stuff. no renderer, just raw c++ (although I’m still using some windows functions). It’s hell AAAAAA

the legend has uploaded

Thanks for the video. A little improvement suggestion to the format: add those youtube video chapters, it would be much easier to jump to section someone might be interested in. Other than that very nice video.

Thanks for interesting video! What are you using as an IDE for the game engine development?

thanks this video was very informational. also what nvim plugins do you use?

You don't need to apologize for using macros, there's nothing wrong with them when not misused. They're an incredibly powerful tool.

Damn, this c++ code look so clean. Most of the time is so hard to read c++ code and with this one is very easy to follow. Do you plan to release any of your bgfx or other libraries abstractions on github?

will the source code be released on github at some point?

Nice and um this um just what i need "um"

Do you mind telling what is the name of your neovim colorscheme? It looks gorgeous!

great video very informative, do you have ur nvim configuration file uploaded some where by any chance?

whenever I think of myself as a good coder, I come back to you to level my ego

2 videos out quickly :o

oh this is beautiful, thank you so much!

Ticks are pretty common in custom engines, most famous implementation that people who don't code would be aware of is Minecraft, which uses it to handle built in updates and better manage server performance at scale.

Unfortunately I’m not going to watch through this at the moment as it’s too advanced for me, but this will be great to come back to.

thank you good sir for this masterpiece

hi I wanted to know what you studied before studying game creation it seems very complex for me to start from scratch and make games from scratch without an engine if you have any tips or tell me what I need to study to reach your level

Really like your font, what font are you using?

will you make a QnA video sometime in the the near future because I have two questions from you, do you have a degree, if yes, in which subject and to what extend, for example undergraduate or graduate. Second question is how long are you coding from because I recently started coding and your and Sebastian lague video make me question my choice...

Woop, can't wait to finish watching this :)

first thing fisrt, love this format, its so intresting to see the little things that you wouldnt add to the properly edited videos, second thing, why do you use a allocator in the first place (bump allocator), if something is required every frame, wouldnt it be better to just stack allocate it, is there any benefit to using a bump allocator ?

Hey, can somebody tell me which plugin jdh uses for the quick open feature? Loved the video btw, hope you'll release the code at some point :)

For someone that is very novice at game dev and graphics programming - where would you suggest going to get the foundational information for game engine development and graphics programming?

This was great and the code review caught bugs, win-win.

One important reason why global state is discouraged: When you depend on that "global" state, especially on a top-down approach, you create a dependency on basically everything. This can make it harder to visualize what depends on what, to refactor and also result in long compile times. If you make sure to only give your classes access to what they need, eventually through small interfaces, it's easier to manage dependencies.

Do you have a course or maybe a playlist where you teach things ??? Can we connect to you on any social media handle ?

Are you using a plugin when you search through your file system for a line in the code? Or is it built in nvim? Thanks!

It's unique in textures but not in general, when coding for 6502, specifically NES, they used Sprite Atlases. Not a new concept but definitely a new usage for the concept and simply genius. They did so to save on Rom and Ram space, and would imagine you saved quite a bit by implementing textures in this method, would be interesting to test and see how optimizing this is.

incredible work

Why did you made the switch from Visual Studio Code to NeoVim ?

tomlplusplus implies you've familiarity rust, as that sort of popularised toml as a format, is there a reason you went with C++ over Rust as the systems language for this? It's about 50:50 on the gamedevs I watch that are using their own engines if it's C++ or Rust and I'm always curious what drives the decision for them

Very cool, haven't seen the whole video yet obviously, but are there any weird things about the language that you ran into and had to figure out?

The Cherno has to make a code review on this. I think he'll like it.

3:00 for me global state is only worth in game dev. In any other kind of application, global variables are a bad idea, but for a enclosed world it's very handy have things like player's state accessable globally

Have you considered std::type_index as a key for registering types from different translation units at runtime? std::map foo; template T const & get(ID_t id) { return dynamic_cast(foo.at(typeid(T))).at(id); } I'd recommend std::map as opposed to std::unordered_map because the standard doesn't guarantee that std::type_index::hash is unique between different types (although it suggests it to be).

Is your vimrc on github gist updated? Since I think you have changed some things, and I would like to have the nice updated config

where did you learn all the things that you are able to do? i would love to do stuff like this as i am very interested in computers but just watching youtube videos dont seem to help

This was so cool…. Wat is the theme you used for the ide?

So I notice that only when you talk can we here background noise or any noise in general. Is that noise canceling or something? Or are you just editing out all noise when your not talking

you're too good to me jdh

I'd say globals aren't too bad depending on how and why they are used. Making them singleton where possible helps too.

What vim plugin are you using for file exploration? 0:53 I have looked through your vimrc but the current version doesn't seem to include the plugin.

What IDE do you use for C++? I’ve been getting into C++ programming and I’ve been trying to find a good IDE.

Curious, would you be willing to share your doom map, editor code?

He’s too good at this stuff