Lit Engine - Legacy (raylib) & Reboot (glfw)

[wintry spear]

❤️

[rocky nova]

https://github.com/root-project/cling/blob/master/tools/demo/cling-demo.cpp

here

[wintry spear]

Thanks

[naive hawk]

I guess that most of the performance relevant stuff will be written in C++ and be part of the engine. So you would use Python only for the game logic, which should be fast enough

also mojo won't make your Python code magically faster. It's its own language where you can basically insert Python code into your mojo code, which looks completely different

when you're looking for a fast Python implementation then checkout PyPy, micropython or one of those Python compilers

[naive hawk]

this is how mojo code looks btw:
https://cdn.discordapp.com/attachments/1139664579530592287/1163873991191187557/image.png?ex=65c25c1f&is=65afe71f&hm=dff930f00aeb5a849905f162847945fca6ad4abc13f17e1d78180fa5b05e682e&

[wintry spear]

Humm, drawing 24,5M vertices is draining performance.

no LOD enabled

not sure why game mode is faster, it is has raycasts enabled so it should be shower

[wintry spear]

in your opinion does the new icons in the inspector enhance the UI?

[rocky nova]

yeah it aint bad

[rugged swan]

is this only for 3d or does it also support 2d

[wintry spear]

Not directly, you can always set the camera to orthographic as use planes as sprites

[rugged swan]

Ah alright i will try it

[wintry spear]

wow, 1k messages

💪

[rugged swan]

Congrats!

[wintry spear]

2000fps locally

[rugged swan]

Is this all just using raylib?

becouse its very impressive

[wintry spear]

And some other libraries such as ffmpeg and dear imgui

[rugged swan]

Ah alright good luck

[wintry spear]

3k fps

I were able to pass from 1k to 3k

[wintry spear]

Guys, how do apps link DLLs? So I don't need to run a bat script to run the engine?

[rocky nova]

LoadLibraryW i think

[wintry spear]

How does it work?

[rocky nova]

sadly i got no clue

[rugged swan]

Damn

[jaunty flower]

I think it should just need libraries in the same folder as the .exe, for dynamic you can use dlopen(provided that the C standard works)

Sorry if I'm like 1 month late lol

[wintry spear]

Yes, I am thinking of using r installer friendly to install lit engine directly onto your system. The issue was that Lit Engine executable was in a mess of files and it was hard to select the correct one

[wintry spear]

https://fixupx.com/TheLitEngine/status/1756033356876124532?s=20

I believe this version is ready.

[lost jolt]

it looks really good! 👍😄

[wintry spear]

You can now create numbered folders, delete them or even rename them. You can also run python scripts in edit mode

Camera controls are better now

Especially Shift + A

You can see the GitHub commit history on the discord server server: server link

[wintry spear]

Physics sandbox

[wintry spear]

36 Million Polygons, PBR enabled and 200-300 fps

[limber needle]

Just a question, why did you write it in raylib over something like sdl?

[wintry spear]

For so many reasons, the primary one being its simplicity and control

[wintry spear]

Hi. Can anyone review my website? https://litengine.org/

I would like to find any UX or UI issue

to fix them

[rocky nova]

pretty fast, but what do you mean by powerful combination of C and C++?

you use C++, not C

perhaps the old motto with the portability of C would look better

or the portability of Python

:(

[wintry spear]

Raylib and imgui use C. I also use C for some stuff

[wintry spear]

My highest score was 260

[rocky nova]

imgui use c++

[wintry spear]

Then raylib uses C

[rocky nova]

yeah

[wintry spear]

I just don't want to put python in the index.html because of the stigma of performance

[naive hawk]

Python has probably a better reputation than C++ lol

The first sentence on your website shouldn't be the tools you used to create the engine. Most of the users don't care about that

[slim pivot]

forza has a better reputation than nfs, but you dont see me playing forza, its because I have taste.

reputation doesn't matter if the end result isnt good

python's end results are alright. but I prefer c++

[naive hawk]

Just saying that it won't attract a lot of people when you have "The powerful combination of C and C++" as the first thing to tell your potential users

I prefer C over Python too, but the users won't care about if the engine was written in C, C++ or whatever

[wintry spear]

yeah

[naive hawk]

take a look at the websites of popular engines. Godot, Unreal and all the other engines. You go to their websites and the first thing you see is "Cool free engine to make it easy for you to make games"

[wintry spear]

I was looking at that too

Go Create - Unity

[naive hawk]

but saying "Powerful C and C++" has the same evangelizing energy that the Rust folks do for their marketing. Take a look at any Rust app and the first thing you see is "Written in Rust. Rust is Blazingly fast and Rust is memory safe because Rust. " and you have no idea what product they are talking about

[wintry spear]

yeah

I agree

something like this?

[naive hawk]

that's great. way better 🙂

"Imagine the games that you can make", "Time to realize your game idea", "Discover the adventures of gamedev"

so many possibilites

you can still mention the languages in your "Features of Lit Engine" box. Like "Create your games using Python, C or C++" or something like that

[wintry spear]

ok

You can only code in Python at the moment. It was more about a specification of the engine

[wintry spear]

How can I improve the UI?

[jaunty flower]

There are some... interesting sizing choices in the editor

Like the gigantic save button

[rocky nova]

imgui styles perhaps

perhaps open a code editor automatically for you

[wintry spear]

I will make the buttons smaller

And maybe transparent

[wintry spear]

How? Like open a random filr

[rocky nova]

have the user select their favorite text editor or something

[wintry spear]

Ok

[wintry spear]

There are 2 alternatives to do it. Either the client specifies in a new window what app to open in startup and at what directory. Or the client gives the command to execute at startup, this is dangerous because it may introduce security vulnerabilities if the command is insecure.

[final swan]

oof that's a bit unfortunate, something like lua or even JS would be nicer

[wintry spear]

why?

even unreal added python as an experiment

it also has a huge ecosystem and it's easy

in terms of performance, the removal of GIL in future versions make it look promising

and C++ support is coming

soon

[final swan]

I guess that may be interesting to see

tho as it stands, I dislike python

[wintry spear]

i get you

GitHub repo was made public: https://github.com/luis605/Lit-Engine/tree/main

🎉

[rocky nova]

awesome

[little bridge]

nice

hoping to see cpp support soon

[wintry spear]

Hi everyone. Due to school work the development will have to slow down

[wheat silo]

using a scene system?

[wintry spear]

Not yet

[wheat silo]

oh ok, keep it up

[wintry spear]

Hi there. The development had a freeze due to school work and it is going to be a little slow now
Everyone on linux, can you compile and run the engine successfully?

If not, please submit an issue

https://github.com/luis605/Lit-Engine/

[lean eagle]

Can you not sell it on Steam? I would maybe try that. To give it away free after thousands of days work? Why?

[rocky nova]

https://github.com/raysan5/raylib

[wintry spear]

I want to make the engine free to use, that's my mission

To earn money, I may add a store or something like that

[wheat silo]

you can put up a donation link on the github if you'd like

[wintry spear]

That'd be great but I am underage tho

[wheat silo]

oh lol

[wintry spear]

Yeah haha

[lean eagle]

Github seems like a cold, sterile place to me... Itch.io is another option to consider?

[wintry spear]

Maybe, I have to see if revolut accepts donations but I think it doesn't

[wintry spear]

I made a game template for the engine using the newer features. https://youtu.be/v_GThMB-l_Q?si=8H6h6IcDRmgkUisB

[lost jolt]

Very nice! I keeps improving a lot! 👍 😄

[wintry spear]

Hi. I did a little update on the website: https://litengine.org/

what do you think?

[wintry spear]

I just made a planet gravity simulation in Lit Engine! The player enters in orbit.

[rocky nova]

fonts here are different

[wintry spear]

I changed the fonts page to Inter

[wintry spear]

I only use Inter, maybe they still have the old font in cache

[zenith current]

@wintry spear cool engine, currently wanting to try it out, but got issues installing from webiste.
when i installed directly from the website for linux i got a missing python3 .so file dependency error

./run.sh
./lit_engine.out: error while loading shared libraries: libpython3.11.so.1.0: cannot open shared object file: No such file or directory

Also, cloning the repo is reaaally slow, since you include the .so files in the repo itself. I think that's not recommended, atleast according to https://vegeta2102.medium.com/why-you-should-not-push-binary-files-to-git-and-what-to-do-if-you-do-29f34692cef0

It will also store every single version of every single binary file within the repository. So , if you clone that repository, you’ll need download all of them, all of version of that binary file. So that will make cloning repository become as slow as tortoise.

[wintry spear]

Ok, thank you. I will review it

[slim pivot]

dude if you actually implement c++ support I am actually onboard fr fr

also why dont you use jolt for physics?

that would be awesome

[rocky nova]

how hard is jolt?

[sharp furnace]

I wouldn't be surprised if its easier than its competitors although all physics engines come with their difficulties

@wintry spear What physics engine do you currently use?

[rocky nova]

he uses bullet

[wintry spear]

yeah

[wintry spear]

1k commits!

[wintry spear]

hey everyone. I need help once again

i've made some updates and I need to make sure those don't only work on my machine but also in the client's

can you please clone the repo and compile the engine?

https://github.com/luis605/Lit-Engine

[rocky nova]

okay

[wintry spear]

If you couldn't compile the engine, could you submit an issue?

[rocky nova]

woah its massive

[wintry spear]

Is that the GitHub repo?

[rocky nova]

yeah

[wintry spear]

Yeah, about that

The git history is huge

And I may have pushed some binaries

A While ago

[wintry spear]

And it should work on Linux

I haven't tested it in Windows since December

[rocky nova]

oh shit i only have a 32 bit compiler

[wintry spear]

I only have a 64 bit computer. I never tested it on 32 bit one

[sharp furnace]

You have so many commits because you commit after doing a small change even though you can group a bunch of changes into just one commit since they're all related lol

[wintry spear]

Yeah, lmfao

[little bridge]

looks nice, still havent tried it since my linux machine died but one day I will

[cosmic chasm]

Is it common for installer to add ppa? I personally at least don't like that. Also this repo his huge, 2.5 GiB. There is one (I assume) example game that is over 500 MiB alone. That sort of large examples should be in their own repo in my opinion. For comparison Godot repo is 226 MiB. For both of these I used "git clone --depth=1". Didn't try to compile it since I'm on arch so cannot add ppa's.

[wintry spear]

How do I clean up the git history?

[cosmic chasm]

I don't have experience with that.

[wintry spear]

no problem

The code alone is just some mb but the .git is huge

[cosmic chasm]

and on the game, the textures are most of it

that are still there and not only in the history

[wintry spear]

Yes, I removed those from the current git commit for that reason

[wintry spear]

Oh really?

I'm on holidays so I will check that out when I get home

[cosmic chasm]

/build/project/game/textures/

[wintry spear]

Humm, I forgot to add it to the . gitignore

Thanks

[wintry spear]

https://twitter.com/TheLitEngine/status/1774133040295379415?t=nx9ANi6R_nYF-KjHu47Yyg&s=19

Lit Engine (@TheLitEngine) on X

Have you already used Lit Engine?

Twitter · Mar 30, 2024, 5:54 PM

[wintry spear]

Hey everyone,
I want to release a new version of the engine (v0.0.4.5) where I ship a bunch of bug fixes and an improved editor experience

I am just waiting for the new update of rFriendlyInstaller and for more possible bugs

If you are working on Linux, can you try the new github version and test the engine

While I wait for rFriendlyInstaller, I would like to fix some bugs or UX enhancements

https://github.com/luis605/Lit-Engine

thank you

[wintry spear]

https://youtu.be/fOu-XiRAZAU?si=ZIfoaDSW6DvjAI8w

[wintry spear]

Hi everyone

I want to improve the UI design of Lit Engine and make it more appealing

I've received some feedback saying the UX is pretty good, but the UI could be improved

What can I improve in the UI design?

Any techniques that could be useful?

I thought of changing the font but it seems font awesome stops working for some reason

so I'm using imgui's default font

[quasi estuary]

I really like the jetbrains mono font, I think that would work pretty well for a game engine as well and from what I have seen it is open source

[wintry spear]

Does it support font awesome?

[quasi estuary]

Tbh, I'm not sure about that

[wintry spear]

I will test and see, thanks

[wintry spear]

it doesn't support icons

but the font looks nice

[little bridge]

I generaly use it with nerd fonts for icons, pretty sure theres a jetbrains mono nerd font isnt there?

[wintry spear]

Humm, I will check

Maybe

[rocky nova]

yes there is

i have used it as a main font

[wintry spear]

Issue fixed then

[warped heath]

I've tried it. It still needs lots of work on UI/UX.
Will there be 2D ?

[wintry spear]

Currently only 3D but with time I am considering adding 2D support, but not yet

[wintry spear]

What can I improve in terms of UI/UX?

[warped heath]

Nothing coming to my mind right now but I'll share some when it try it second time.

[wintry spear]

Are you compiling from source or using the website version?

[warped heath]

Used website version.

[wintry spear]

I had some reviews on that version and I fixed most segfaults, memory leaks, UX problems and simplified the UI a little by adding indentation, and other fixes

[warped heath]

I'll try to compile it from source next time.

[wintry spear]

ok

I will submit a new version soon to the website

Tho

[wintry spear]

I've merged the jetbrains font with the fontawesome icons and now it works perfectly https://github.com/luis605/Lit-Engine/commit/8efe80c9b632664ef1c65077346a98c318d15468

[wintry spear]

Hi everyone. The icon of the Ambient Light and the Bloom are the same (sun icon). do you have any idea of a fontawesome icon that could fit the bloom one?

I don't wanna repeat the icons

[quasi estuary]

Maybe you could use a torch icon

[wintry spear]

ok

let me see

it didn't look nice. I put a star for now

i don't like it but idk

[little bridge]

I know this is off topic and super subjective but have you considered changing the ui theme a bit? it currently screams imgui

[wintry spear]

Really?

What can I change?

[little bridge]

as i said very subjective but heres what i was thinking:

• more or less rounding on buttons
• choose an accent color other than gray
• change the aspect ratio of the buttons or add spacers on the side

[wintry spear]

Ok

I will take a look tomorrow

thanks

[wintry spear]

In ImGui, how do I make the children of the collapsing header the same width as the header

In this image, the collapsing header is wider than the brightness slider. I am using ImGui::SetNextItemWidth(-1);

[rocky nova]

@wintry spear have you looked at this? https://docs.flaxengine.com/manual/scripting/cpp/index.html

[wintry spear]

It seems a good repo to take a look at

It's my first time hearing about it hahaha

Thanks

[wintry spear]

Windows users, can you try to compile the engine on Windows?

https://github.com/luis605/Lit-Engine/

[rocky nova]

sure

gimme a min

@wintry spear what does this do? will this make it faster? or?

[wintry spear]

Did you run make build_dependencies in the parent dir?

[wintry spear]

Did the dependencies get downloaded when you cloned the repo?

How did you clone it?

[rocky nova]

cloning doesnt work because it always errors out even with --depth=1

so i just downloaded the zip

[wintry spear]

Then you have to update the submodules

git submodule update --init --recursive

[wintry spear]

Did it work?

[rocky nova]

Nope

Well, submodules did work, but make didn't

[wintry spear]

What's the error?

[wintry spear]

Strange, I will review it asap

[wintry spear]

Can you submit an issue please?

[rocky nova]

i have no clue how to do that

[wintry spear]

You just go to https://github.com/luis605/Lit-Engine/issues and click on New Issue

[rocky nova]

now sadly i'm moving to ubuntu

so i might not be useful for further testing :(

[wintry spear]

no worries, thanks tho

I'll try to debug it

[pulsar python]

Do you still need a windows user to install it because I don’t mind trying I love this project and happy to help in anyway

[rocky nova]

oh hey there's my replacement (:

[pulsar python]

Sorry don’t know how to fully use Cmake yet so I might take a while

Sorry I’m way out my depth and don’t have a clue on how to build the program

[wintry spear]

Hi there, to build the engine you need to run

make build_dependencies
cd build
cmake -G "MinGW Makefiles" .. --fresh
make

If any of these steps returns an error, please paste it here

[wintry spear]

Thank you a lot. It really means a lot to me

Glad you like this project

[pulsar python]

It gets beginners into game dev and have python as an adaptable skill although I did think it was odd at first you didn’t use lua but yeah python is a lot better

[wintry spear]

I also thought of using lua but it has more constraints and is harder to work with

[pulsar python]

I’m trying to find the source with cmake but can’t find it

[wintry spear]

What source?

[pulsar python]

Source code

[wintry spear]

Of Lit Engine?

[pulsar python]

Yes I am trying to set up cmake so then bash works

Or is that wrong

[wintry spear]

Oh yes, so do you have git installed? The command line command?

[pulsar python]

If you mean GitHub yes if you mean something else no

[wintry spear]

Ok, so GitHub is where Lit Engine's source code is. To download the project you need to clone the repository into your local machine. Usually you would go to the website and download it from there, unfortunately I have some submodules that need to be initialized (like raylib, imgui, bullet3, etc.) for that you have to have git cli installed. Like GitHub's cli command

You can download the cli command online

Let me see if I find the link

[pulsar python]

Ok thanks sorry I’m relatively new to this stuff

[wintry spear]

no problem, I was also like that when I first started

I'm arriving home, let me just fire up my laptop

ok, I'm back

@pulsar python you can get git from here: https://gitforwindows.org/

[pulsar python]

Ok thank you

this may seem stupid but i dont know what to do about this "make: *** No rule to make target 'build_dependencies'. Stop."

[wintry spear]

it says that there isn't a makefile or that the makefile does not contain a function called build_dependencies

have you cloned the repository?

git clone --recurse-submodules -j8 https://github.com/luis605/Lit-Engine

[pulsar python]

oh i downloaded the zip file

[wintry spear]

no worries

I think you'll need to run the command inside the git terminal, tho

[pulsar python]

its at 41 percent now ill ask if i have any problems

[wintry spear]

what kind of problems?

it seems to be downloading fine

ffmpeg is quite large tho, it may take some minutes to download the project

[pulsar python]

still says make: *** No rule to make target 'build'. Stop.

[wintry spear]

in what directory are you in?

[pulsar python]

i dont know what is a directory

[wintry spear]

it's a synonym for a folder

can you send me a screenshot of your terminal?

I will check that out

[wintry spear]

if you run cd Lit-Engine and then make build_dependencies?

[pulsar python]

i now feel stupid but it said it didnt find python

[wintry spear]

what's the error?

[pulsar python]

Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.
make: *** No rule to make target 'build_dependancies'. Stop.

[wintry spear]

you mispelled dependencies

make build_dependencies

should work

python not being found is not a problem, don't worry

[pulsar python]

ok new error

Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.
Building Dear ImGUI
clang++ -std=c++17 -O3 -DIMGUI_IMPL_OPENGL_LOADER_GLAD -c include/imgui/imgui.cpp -o include/imgui/imgui.o
make: clang++: No such file or directory
make: *** [makefile:49: include/imgui/imgui.o] Error 127

[wintry spear]

do you have clang++ installed?

[pulsar python]

ill download it now

[wintry spear]

you can get it from the LLVM project

[pulsar python]

what am i exactly looking for inside LLVM

[wintry spear]

llvm is the project that provides clang++. I can send you the executable that I compiled but I don't know if it work in your computer nor if it is safe to send them like that

I found them

[pulsar python]

ive downleaded it but cant find clang and i searched file explorer as well came out with nothing

[wintry spear]

you download the llvm compiled project: https://github.com/llvm/llvm-project/releases/tag/llvmorg-18.1.4

Download the clang+llvm-18.1.4-x86_64-pc-windows-msvc.tar.xz compressed file from the project owners

then the executable is in bin/clang++.exe

[pulsar python]

clang++ instantly crashes

[wintry spear]

what's the error on the terminal?

[pulsar python]

the .exe file

[wintry spear]

oh, you're opening it?

you just add the clang++ folder to the PATH and the makefile will run the command directly

[pulsar python]

i put the .exe file in the folder still wont build

[wintry spear]

what's the error

[pulsar python]

same one

[wintry spear]

you put the clang++ inside Lit-Engine?

[pulsar python]

yes

[meager frost]

I can try to build it lixt

let me get on my pc real quick

[wintry spear]

I can, 2 people say they can't

that's why Im confused

bcs it works on my machine

[meager frost]

mhm

[wintry spear]

works fine

[pulsar python]

it probably works i just am clueless

[wintry spear]

@pulsar python does adding the clang++.exe folder to path solves the issue?

[pulsar python]

it wasnt a folder

[wintry spear]

you just added the executable to PATH?

[pulsar python]

yes

[wintry spear]

i don't think it works, does it? I'm not a windows expert

but iirc, you just add the parent directory

idk

[pulsar python]

unless you want me to put the bin in you mean

[wintry spear]

yeah

yes, that was what I did in my laptop

[pulsar python]

ok still got the same error

[wintry spear]

clang++ not being found is odd

what if you remove the .exe extension

i'm completely clueless

[pulsar python]

wait i have the zip file it might be looking through that one

[wintry spear]

ohk

[pulsar python]

they are both identical and i also renamed the bin folder to clang++ to see if anything would change but nothing same error

[wintry spear]

renaming shouldn't do anything really

what's the full path of the bin folder?

[pulsar python]

this Pc > local disk > users > joshu > Lit Engine then there is bin

[wintry spear]

chatgpt says to add that folder to path, click OK, and then relaunch the terminal

[pulsar python]

same error in terminal

[wintry spear]

last resource, move the clang++.exe to Lit-Engine/

I'm so clueless rn

[pulsar python]

$ make build dependencies
Python was not found; run without arguments to install from the Microsoft Store, or disable this shortcut from Settings > Manage App Execution Aliases.
\033[32m Building Demo\033[0m
clang++: error: no such file or directory: 'include/ImGuiColorTextEdit/TextEditor.o'
clang++: error: no such file or directory: 'include/rlImGui.o'
clang++: error: no such file or directory: 'include/ImNodes/ImNodes.o'
clang++: error: no such file or directory: 'include/ImNodes/ImNodesEz.o'
clang++: error: unable to make temporary file: no such file or directory
make: *** [makefile:58: build] Error 1

new error at least

[wintry spear]

run make build_dependencies instead

[pulsar python]

i got a massive list it said 2 errors though

[wintry spear]

I'm fixing those 2 errors

a dependency had a bug

[pulsar python]

yeah this

[wintry spear]

yeah

[meager frost]

did you run git submodule init?

oh

[wintry spear]

he did

[meager frost]

well

same error now

[wintry spear]

I pushed the fix to the fork

it should work now

[meager frost]

pushed to main?

[wintry spear]

to master

[meager frost]

or should I just update submodules?

[wintry spear]

https://github.com/luis605/ImNodes

yeah, idk if it will update since it is already installed

but yes

[meager frost]

git submodule update --recursive --remote

[wintry spear]

that's right

it should fix the issue

[meager frost]

hmm

[wintry spear]

cmath.h

[meager frost]

?

[wintry spear]

abs is part of cmath, if I'm not mistaken

#include <cmath>

pushed a new commit

[pulsar python]

39 | return std::abs(a.x - b.x) < std::numeric_limits<float>::epsilon() &&
| ^~~~~~~~
| abs
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\ucrt\corecrt_math.h:470:38: note: 'abs' declared here
470 | Check_return int __cdecl abs(In int _X);
| ^
include/ImNodes/ImNodes.cpp:40:12: error: no member named 'abs' in namespace 'std'; did you mean simply 'abs'?
40 | std::abs(a.y - b.y) < std::numeric_limits<float>::epsilon();
| ^~~~~~~~
| abs
C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\ucrt\corecrt_math.h:470:38: note: 'abs' declared here
470 | Check_return int __cdecl abs(In int _X);
im pretty sure these are errors and there lines

[rocky nova]

how come?

[wintry spear]

of you run git submodule update --recursive --remote, does it fix the issue?

[wintry spear]

you use tables instead of casting object, less features and a smaller ecosystem. also a smaller community

[rocky nova]

wdym by casting object?

[wintry spear]

and I wasted 2 days with tables while only some hours casting everything into python

[pulsar python]

new thing

[wintry spear]

py::cast(obj);

like Camera3D

[rocky nova]

what

[wintry spear]

passing this class or structure to a python class or object

[rocky nova]

you know you can bind native structs right?

[wintry spear]

seems fine, no errors, just warning

[wintry spear]

to lua? how?

I had to use tables

[rocky nova]

https://sol2.readthedocs.io/en/latest/tutorial/cxx-in-lua.html

if you're using c++ this is the go-to wrapper

its the fastest and the best

[wintry spear]

now, the last step is to:

cd build
cmake -G "MinGW Makefiles" .. --fresh

I didn't know

[rocky nova]

to declare a global variable in the current lua_State you would do

sol::state lua;
lua["g"] = 10;
std::cout << lua["g"];

[wintry spear]

cool

[pulsar python]

CMake Error: Could not create named generator MinGW Makefiles

Generators

• Unix Makefiles = Generates standard UNIX makefiles.
  Ninja = Generates build.ninja files.
  Ninja Multi-Config = Generates build-<Config>.ninja files.
  CodeBlocks - Ninja = Generates CodeBlocks project files
  (deprecated).
  CodeBlocks - Unix Makefiles = Generates CodeBlocks project files
  (deprecated).
  CodeLite - Ninja = Generates CodeLite project files
  (deprecated).
  CodeLite - Unix Makefiles = Generates CodeLite project files
  (deprecated).
  Eclipse CDT4 - Ninja = Generates Eclipse CDT 4.0 project files
  (deprecated).
  Eclipse CDT4 - Unix Makefiles= Generates Eclipse CDT 4.0 project files
  (deprecated).
  Kate - Ninja = Generates Kate project files (deprecated).
  Kate - Ninja Multi-Config = Generates Kate project files (deprecated).
  Kate - Unix Makefiles = Generates Kate project files (deprecated).
  Sublime Text 2 - Ninja = Generates Sublime Text 2 project files
  (deprecated).
  Sublime Text 2 - Unix Makefiles
  = Generates Sublime Text 2 project files
  (deprecated)

[wintry spear]

ok, you can either download mingw, which is the best option, because there shouldn't be any errors, or try Unix Makefiles, which I don't know if it will work

[pulsar python]

i have cmake already from using raylib

[wintry spear]

and mingw?

[pulsar python]

does it matter if they have 32 or 64 after them

[wintry spear]

the installer?

[pulsar python]

no i have 2 versions of it

from devkitpro

[wintry spear]

if your computer is 64 bits, then you would prefer the 64 version, otherwise you can use 32 bits, which is slower

but if the 64 bits crashes at startup, then you computer doesn't support it

[pulsar python]

it runs the only problem is that it aint seeing lit engine

[wintry spear]

ok, rerun the cmake command

and see if it works

[pulsar python]

cmake -G "MinGW Makefiles" .. --fresh
-bash: cmake: command not found

[wintry spear]

in the terminal you ran this command

[rocky nova]

isnt devkitpro for the wii n stuff

[pulsar python]

yeah

so that didnt work either

[wintry spear]

any error?

[pulsar python]

CMake Error: Could not create named generator MinGW Makefiles

Generators

• Unix Makefiles = Generates standard UNIX makefiles.
  Ninja = Generates build.ninja files.
  Ninja Multi-Config = Generates build-<Config>.ninja files.
  CodeBlocks - Ninja = Generates CodeBlocks project files
  (deprecated).
  CodeBlocks - Unix Makefiles = Generates CodeBlocks project files
  (deprecated).
  CodeLite - Ninja = Generates CodeLite project files
  (deprecated).
  CodeLite - Unix Makefiles = Generates CodeLite project files
  (deprecated).
  Eclipse CDT4 - Ninja = Generates Eclipse CDT 4.0 project files
  (deprecated).
  Eclipse CDT4 - Unix Makefiles= Generates Eclipse CDT 4.0 project files
  (deprecated).
  Kate - Ninja = Generates Kate project files (deprecated).
  Kate - Ninja Multi-Config = Generates Kate project files (deprecated).
  Kate - Unix Makefiles = Generates Kate project files (deprecated).
  Sublime Text 2 - Ninja = Generates Sublime Text 2 project files
  (deprecated).
  Sublime Text 2 - Unix Makefiles
  = Generates Sublime Text 2 project files
  (deprecated).

[wintry spear]

is mingw installed?

[pulsar python]

yes it even says it on the git now

[wintry spear]

humm

are the binaries included in PATH?

[pulsar python]

no...

ok i got the sln file from cmake

[wintry spear]

I never tried it with a sln file, visual studio just returns a bunch of errors

[pulsar python]

yeah i got errors

[wintry spear]

https://chat.openai.com/share/406b24bd-207d-405e-b58c-9f8ce7e74605

this should fix your issue

[wintry spear]

If chatgpt's solution fixes the problem, let me know

[pulsar python]

still downloading ill make dinner and ill be back

[wintry spear]

sure

[pulsar python]

chatgpt didnt work ive been trying a lot for the past half hour

[wintry spear]

either mingw doesn't seem to be properly installed or cmake isn't finding it properly

[pulsar python]

i need to fix my pc in general some things just dont like to work like unreal engine for the past 3 years

[wintry spear]

What I dislike in Windows is precisely that, things get super complex. In linux we just do apt install ffmpeg/gcc/g++/clang++/whatever and it just works out of the box. in windows we have to do lots of trouble shooting, install a bunch of dependencies manually and build them

[pulsar python]

ive used debian in chromebook i honestly prefer it to windows at this point

[wintry spear]

do you have mingw cli installed?

like msys2 mingw?

[pulsar python]

yes

[wintry spear]

If you open the build folder in that cli, and run the cmake command, what error do you get?

[pulsar python]

sorry its almost 11 pm i cant make sence of what you just said

[wintry spear]

no worries

I'll try to fix all of this issues

and thank you. you've been very helpful

[pulsar python]

hapy to help even if it was miniscule

amasing game engine from what i seen good luck

[wintry spear]

thank you

[pulsar python]

tommorow ill convert to linux jesus i really seen windows cracks today

[edgy dirge]

the github should be updated. the "linux" section is actually only for debian based distros and nothing else 😿

i was hoping to give this a try but it wont run on my system

[wintry spear]

Yes, the install.sh file uses apt but you can also change the installer to your current OS. I will try to make a distro based installer detection, my problem was that if I set a custom installer to Debian or Ubuntu, then other Debian based operating systems would not work, such as mint, because it is not Debian, but Mint. I may try looking for the installed package manager and if it is apt, then do the Debian installer, if it is something else, use that something else installer, that may work

[edgy dirge]

even after installing dependencies, i still get this issue

also worth noting... the repo is /massive/. GBs. it was hard to get over a slow connection because if the connection drops for even a moment it has to start over. took me a few hours 😿

[wintry spear]

make build -B

[wintry spear]

I know, I'm trying to fix it

[wintry spear]

sometimes it happens and you have to force build the engine

[hollow narwhal]

@wintry spear what Gui framework are you using?
Imgui, gtk or qt?

[wintry spear]

I'm using Dear ImGui

[hollow narwhal]

Cool, thanks

[wintry spear]

what are you developing?

[hollow narwhal]

A 2d game engine, 2d only. using sdl and now imgui

It's still in early stages of development

[wintry spear]

that's so cool

I never worked with 2d. is it hard?

[rocky nova]

Less hard than 3D I'd imagine

[wintry spear]

I actually don't know. the techniques are different, I imagine

[hollow narwhal]

The programing is the same in my own opinion. But 3d is slightly harder, main reason is because in 2d you only have to worry about x and y coordinates, but in 3d it's 3 coordinates xyz

and making asset's for 2d is easier, 3d on the on other is wild (3d modelling is a great factor)

[edgy dirge]

I think 3d assets are easier, personally. There's a lot more tools for it

[edgy dirge]

I'll try your suggestion and see if I can get it working later today

[wintry spear]

yes, and I just suck at drawing in general, so modelling gets a bit easier, but the techniques used in 2d can also get pretty complex, right? that's why I asked. Sprite rendering, idk. I never worked with 2d

[hollow narwhal]

doesn't the lit engine use raylib as it core

I thought raylib only did 2d

[rocky nova]

raylib is 3d

[wintry spear]

and has 2d support

but it is more focus on 3d

but u can do both

[hollow narwhal]

See 🫣, i am crazy. Sorry i had no ideal

[wintry spear]

np

[wintry spear]

Lit Engine build system just got updated. Can anyone try to compile the engine on Windows, following the new guide and build instructions?

This guide is present in the README.md in the Windows section

[edgy dirge]

If you want someone to test on Linux (non debian) I can do that 😂

[wintry spear]

haha 😂

the support for non Debian based operating systems is coming soon

[hollow narwhal]

Incase anyone is wondering, i use arch btw

[wintry spear]

is arch harder to work with?

[edgy dirge]

From a technical standpoint, of course. It does less "for you" than distros like debian/mint/etc

I hate canonical/ubuntu with a fiery passion, but I find the more simple Linux distros "harder" because I can't do what I want. From a non technical standpoint

[wintry spear]

yes, more abstraction = less control

that's why I choose c++ over python for my engine

[little bridge]

well not that python was gonna work for an engine anyways, hows mac support btw?

[wintry spear]

I don't have access to a Mac and adding support to many platforms on this early stages of this solo project will slow down the development by a lot. that's why I haven't been working on Mac support yet

[edgy dirge]

Mac sucks to support btw 😂 x86/arm exists. Plus older ones use opengl (fake opengl) but newer ones don't. It's not fun imo

[jaunty flower]

Stop the python hate, it’s perfectly fine for an engine >:(

[wintry spear]

exactly

[wintry spear]

The website was bothering me a bit, so I cleaned it up. It looks much better, what do you think? https://litengine.org

[lost jolt]

it looks good to me! 👍😄

[wintry spear]

ty

[wintry spear]

A wider Linux package installation script has been pushed into the main branch. To make it easier to build the engine I automatically install some packages from apt such as ffmpeg, tbb, python3.11-dev, etc. However this installation system only works on Debian based distros, so I updated the script to include an automatic detection of the package manager installed on the user's device. This will allow you to install those packages not just in Debian but also in Fedora, RedHat, ArchLinux, and all the other distros that either use apt, yum, dnf or* pacman*. Could you try the script so I can see if I need to tweak anything else, such as a missing package or a non-existing one?

[edgy dirge]

can you change sudo pacman -Syu to sudo pacman -Sy

that will make it similar to apt update whereas -Syu is similar to apt update && apt upgrade which is really unnecessary and bad

[hollow narwhal]

Why use imgui when raylib gui exist

[wintry spear]

raygui isn't powerful and it lacks much of the basics. The editor wouldn't have this look if I used raygui and try to implement the basics, I would use a large amount of time that I don't have

[wintry spear]

probably kinda basic but you couldn't unchild a light 😅

Next stop, unchild entities

[wintry spear]

some lighting updates

[edgy dirge]

i got it to work on linux with the new install script, but there is 1 bug (so far)

i can make it non-fullscreen but it takes up ~80% of my monitor but i cant move or resize it 🤣

[wintry spear]

haha there's no resize yet

it's odd that you can't move tho

[edgy dirge]

looks like there's no "undo" either

also when using the arrows to move objects in the scene some of the handles should be reversed, i think. example... if you grab -X and move "left" it will move in direction A. if you grab +X and move "left" it will move in direction A as well. but they should be reversed from each other

[wintry spear]

so the arrow that's pointing down will only allow the object to go down?

[edgy dirge]

no

opposite side arrows should move in opposite directions when doing the same movement

[wintry spear]

ohk

[edgy dirge]

maybe a video will help explain? haha

[wintry spear]

maybe, haha

[edgy dirge]

ohhh i think both are reversed from what im expecting

all the other arrows behave correctly. only the ones shown in the video are backwards

the ~Z and X axis handles are backwards when moving left/right

[wintry spear]

ohk

I see

it should be easy to fix

[edgy dirge]

when you delete it stays selected and has handles etc

[wintry spear]

I'll fix it rn

[wintry spear]

all those issues should be fixed now

thanks for reporting them

[wintry spear]

hierarchy should be mostly fixed now

some more tweaks to do and they're complete

https://github.com/luis605/Lit-Engine/commit/2626e8373ce33f441e7b38593aaf2f7b303d28ce

[little bridge]

does macos work atm?

[wintry spear]

not yet

[wintry spear]

A small physics update in Lit Engine with the improved pbr lighting shader

[wintry spear]

idk why the mouse randomly unlocks when in game mode. is it just me or do you also get this issue?

[wintry spear]

Any bugs that you found?

[rocky nova]

@wintry spear how do you decode videos and display them in raylib?

[edgy dirge]

is that supported in lit engine?

[wintry spear]

I use ffmpeg to decode the videos but due to some memory issues, ffmpeg is not being able to get the video stream to play them. The code for my implementation is in here: https://github.com/luis605/Lit-Engine/blob/main/Engine%2FGUI%2FVideo%2Fvideo.cpp

To decode and pass a video frame to a raylib texture:Read and decode the frame using av_read_frame and avcodec_receive_frame.Convert the decoded frame to RGBA format using sws_scale.Update the raylib texture with the converted frame data using UpdateTexture.

[rocky nova]

yeah you can even use videos as normal maps

I'm pali :>

[edgy dirge]

hello, pali

[wintry spear]

hi pali

[rocky nova]

I see, thanks

[wintry spear]

copy and paste now supports children nodes:

each A has B that has C
A -> parent entity
B -> child entity
C -> B's light child

[edgy dirge]

I'm gonna try it again tomorrow 😎

[hollow narwhal]

What's your imgui backend

[edgy dirge]

there are a few weird quirks:

• i cant seem to add any primitives or lighting
• when i go to file->open i can not select anything, it just opens some hardcoded thing
• when doing file->open, the hardcoded scene has a light but it does not affect the plane that is present
• when doing file->open, the hardcoded scene has a light but it is affecting the handles/gizmos things
• "save as" does nothing. no prompt (looking at the code, this is intentional)
• ctrl+s is supposed to save but the "S" gets carried into the viewport, making the camera move
• im not sure how to reproduce it, but sometimes things are un-selectable in the scene editor. moving it ~6.5 units from the center seems to do it consistently

suggestion: make the arrows/handles coloured for the matching axis. red should be used for X, green for Y, blue for Z, etc

feedback:

• the handles/arrows/things are really far from the selection most of the time. it makes it hard to zoom in and see placement accurately
• the scale/position of the Entity Properties section dont have sliders, making it hard to do accurate fine tuning
• the scale/position of the Entity Properties section update instantly, making it hard to do accurate fine tuning
• the light rotation uses -1 to 1 range. very awkward and not easy to work with
• the handles/arrows/things are drawn in 3d space, so they may be inaccessible sometimes when they are occluded by other geometry (or even the model itself, like the sand.obj included). making it very difficult to move things around

possible bug: increasing the scale adjusts the selection sphere things size, which is great. but if you go negative it does not. so if you want something flipped with a -1 scale but then want it larger (-2, -3, etc) the selection sphere does not change

bug: i am unable to delete this (use file->open to load it) with the delete key or the right click->delete

after clicking around a bit with it deleted:

corrupted size vs. prev_size
make: *** [makefile:50: run] Aborted (core dumped)

feedback:

#ifdef __linux__
    system("xdg-open https://www.litengine.org");
#elif _WIN32
    system("start https://www.litengine.org");
#elif __APPLE__
    system("open https://www.litengine.org");
#endif

you have this in a few places, but raylib has an OpenURL function that is cross platform already

feedback: some of the scale-cube-handle things work backwards from how i expect

feedback: in the Assets Explorer it would be good to have like an "open folder here" thing so i can browse local files easier

possible bug: the "debug" window shows the scene polycount, but it's exactly 3x higher than it should be. with just the sand.obj it shows 200337, but opening in blender shows 66,779. if you multiply 66779*3 you get 200337

in the code you have vertexCount += entity.model.meshes[meshIndex].vertexCount; which is outputting 200337

[wintry spear]

rlImGui

[wintry spear]

hi, to add primitives and lights you can do Shift + A in the scene editor. The open feature just opens a hard coded path and "save as" or crtl + S aren't yet implemented, but I aim to add them in the next version since this is just a bug fixing version. the material system is under review and that's why the lights don't affect some models correctly. does the unselection issue also happens when the arrows are green or just when they are red? because, when the camera is far away from the model, the arrow's selection has a small offset.

[wintry spear]

yes, that's a bug, I'll fix it as soon as possible

[wintry spear]

yes, I'm currently fixing that bug. it happened after a material system update so I believe it's due to some dangling pointer or something like that that's causing some undefined behaviour

[wintry spear]

I didn't know, thank you

[wintry spear]

how should it be designed? The files that are shipped when exported are those inside project/ and having that functionality may induce the developer to think that all files are changed.

[wintry spear]

humm, strange. I will review it

[edgy dirge]

Even very close to the object they are unselectable

[edgy dirge]

Right click in the assets explorer -> "open folder" and it opens the OS folder browser to that location

[wintry spear]

oh okay, that should be easy to implement

[wintry spear]

okay, I think I have an idea of what may be happening

[edgy dirge]

wrong thumbnails when adding new files in

i copied "icon.png" and renamed .obj to see what would happen. it took the thumbnail from the cactus for some reason

it also does not gracefully handle the error and the entire thing crashes when trying to use the fake obj lol

[wintry spear]

lol, yep that's a bug

[edgy dirge]

the X is very small

[wintry spear]

true, I'll see if I find a cool fontawesome icon to replace the X with

[edgy dirge]

TINYOBJ: Error reading file 'desert.mtl': No such file or directory (2)
TINYOBJ: Failed to parse material file 'desert.mtl': -3

sand.obj has a reference to mtllib desert.mtl which doesnt exist in the project

[wintry spear]

that's a 3d model specific file not found. it's not related to Lit, even though it's shipped in the test version

[edgy dirge]

yes, but since the 3d model is shipped with lit it should be fixed, no? just remove that mtllib line in the file

it would be nice to click the "project"|"game"|"models"

so i can go up 2 levels in 1 click, etc

[wintry spear]

okay, it should be easy to implement

[edgy dirge]

the 3d arrows being blocked by geometry is the only real pain point for me right now

[wintry spear]

yes, I'll see how to fix it asap

[edgy dirge]

this is an example with the sand.obj scaled to 5x

no other objects in scene

[wintry spear]

yes, you can't select the arrows that are occluded by the model, right?

[edgy dirge]

you can select them, if you guess their position 🤣

[wintry spear]

so right

[edgy dirge]

if they were drawn on top of all geometry then it would be functional

[wintry spear]

humm, but since they use the same shader, wouldn't it have no effect?

[edgy dirge]

i dont think it should even use the same shader. having the arrows interact with the lighting is very strange

i dont like having shadows on gizmos making them dark

[edgy dirge]

so, the title says "scene editor" which implies multiple scenes are allowed. but the way it works right now is locked to a single scene, right?

[wintry spear]

yes

[wintry spear]

this is a correct behavior, from what JeffM explained.
#help-general message

[wintry spear]

I believe I fixed all the issues/bugs mentioned, hope it's more stable now

[edgy dirge]

he explained more and it sounds like raylib is keeping a vertex count. not a tri count. but it's being displayed as a tri count in your debug window

so i think a good solution is to rename the debug window to say vertex count instead

but its up to you =]

[wintry spear]

okay, I'll take a look at the code

:>

[edgy dirge]

will try out the other fixes tonight

[copper bronze]

the project looks solid! I'll give it a try

[stray lotus]

maybe add a fancy image to github
without it its always so abstract and you have to imagine what it is or what it can do

[wintry spear]

makes sense, I'll add an image soon

[rugged swan]

Yo

hows the engine doin?

[wintry spear]

it's doing good and it has been very pleasant to work in it

[edgy dirge]

Any plans to allow multiple scenes?

Do you have any games created in it as a showcase?

[wintry spear]

I don't have plans for this version yes

[wintry spear]

I'm making a procedural maze game to test my engine. there are 2 templates and I'm rewriting the maze one

[little bridge]

hows mac, linux and win support looking?

open to prs on that?

[rocky nova]

No mac support my friend

[little bridge]

which is why I was asking

[wintry spear]

currently there is no Mac support because I have no Mac to develop on

but if anybody is willing to develop and test the Mac version, it would be great

[rugged swan]

hey man, why dont you use a virtual machine for testing thats what i did for my game

[wintry spear]

I believe I fixed all known bugs. If you have more bugs to report, now is the time. I will test the engine on Windows and, if no more problems arise, I will publish the new version.

[wintry spear]

I will try to implement the mac version in the next version

[little bridge]

yes definitely can help with testing at least

[wintry spear]

yes, but the Mac version would still need to be developed and that's a lot of complexity for the project right now

the complexity and time consume is what I'm afraid of at the moment

I think it would substantially slow down the project

[little bridge]

what non crossplatform libs are you using anyways?

[little bridge]

If its not too much I might just try to get it running

[wintry spear]

I don't think there is any non cross-platform libs tbh

[little bridge]

then I dont see how there should be major problems besides the buildsystem at most

[wintry spear]

it would be nice to have one build system instead of 3 separate ones for each platform

I will take a look into the build system and see if I can improve it

[little bridge]

I mean I just wouldhave put platform specific stuff in the cmake unless there needs to be platform specific code but since you said you only have crossplatform libs i dont see how that would be needed

so then thered be only one

[wintry spear]

yeah, I'm trying to make a cross platform cmake that builds for windows and for linux

[little bridge]

what ide are you using? anything fancy or will it worl with anything?

[wintry spear]

since I'm using cmake, it should work with any

[little bridge]

How does that Cmakefile even work? It complains to me when simply generating the makefile that for example main.cpp isnt in the expected location, hows your project setup?

[edgy dirge]

@wintry spear any plans to make a video for the 2024 showcase in #madewithraylib ?

[lost jolt]

definitely, there should be there

[wintry spear]

I mean, there isn't much to put there since this version was mostly bug fixes but I can make a small video to go with the release

[edgy dirge]

it doesnt need to be only the most recent changes, but you can show off the editor and such. i think it would be good and get more eyes on it =]

[wintry spear]

I will try to finish the building system before the 12 of august and make a video before the 15th

[little bridge]

I sort of got it building on macos, though since you’re making a buildsystem ill wait for you to finish that until making a PR

[wintry spear]

just finishing the windows linking process

[wintry spear]

It is taking longer than I expected 😅

for some reason bullet3 does not want to be linked

although every path and name seem correct

[little bridge]

yes i know that feeling

ping me when you merged the buildsystem

[hollow narwhal]

Does lit Engine use/ plan to use C/C++ for scripting or ... ?

@wintry spear

[rocky nova]

Yes if i remember correctly there will be support for python and cpp

[wintry spear]

hi sorry, I overslept 😅 Yes, like @rocky nova said, c++ and python support are one of the desired features of Lit Engine 0.0.5

[rocky nova]

Let lixt cook

[wintry spear]

this is so strange. I'm using full paths now and I have triple checked them:

set(BULLET_LIBRARIES_DIR "${CMAKE_SOURCE_DIR}/install/bin/vcpkg/installed/x64-windows-release/lib")

set(BULLET_DYNAMICS_LIBRARY "${BULLET_LIBRARIES_DIR}/BulletDynamics.lib")
set(BULLET_COLLISION_LIBRARY "${BULLET_LIBRARIES_DIR}/BulletCollision.lib")
set(BULLET_MATH_LIBRARY "${BULLET_LIBRARIES_DIR}/LinearMath.lib")

set(LIB_FLAGS
    ${BULLET_COLLISION_LIBRARY}
    ${BULLET_DYNAMICS_LIBRARY}
    ${BULLET_MATH_LIBRARY}
)

target_link_libraries(LitEngine PRIVATE ${LIB_FLAGS} -O3)

And this is the output:

ld.lld: error: undefined symbol: btCollisionObject::setActivationState(int) const
>>> referenced by objects.a(main.cpp.obj):(Entity::applyForce(LitVector3 const&))
>>> referenced by objects.a(main.cpp.obj):(Entity::applyImpulse(LitVector3 const&))

ld.lld: error: undefined symbol: btRigidBody::setMassProps(float, btVector3 const&)
>>> referenced by objects.a(main.cpp.obj):(Entity::updateMass())
>>> referenced by objects.a(main.cpp.obj):(Entity::updateMass())

ld.lld: error: undefined symbol: btRigidBody::setDamping(float, float)
>>> referenced by objects.a(main.cpp.obj):(Entity::applyDamping(float const&))

ld.lld: error: undefined symbol: btAlignedAllocInternal(unsigned long long, int)
>>> referenced by objects.a(main.cpp.obj):(PhysicsManager::Update(float))
>>> referenced by objects.a(main.cpp.obj):(PhysicsManager::Init())
>>> referenced by objects.a(main.cpp.obj):(PhysicsManager::Init())
>>> referenced 2 more times

etc...

does anyone have any clues about what may be causing this?

[rocky nova]

/usr/local/Cellar/llvm/15.0.6/bin/clang --target=riscv64 -march=rv64i -fno-builtin -nostdlib -ffreestanding -Wall -Wextra -Wwrite-strings -Wstrict-prototypes -pedantic -c -o build/main.o bios/main.c
riscv64-unknown-elf-as -march=rv64i -o build/start.o src/start.S
/usr/local/Cellar/llvm/15.0.6/bin/ld.lld -T link.ld -O2 -nostdlib --oformat=binary -o output.bin build/main.o build/start.o

Dont ask i copied from somewhere and it might help

[wintry spear]

ahh, okay?

[rocky nova]

Did u link ld.lld?

[wintry spear]

I'm using cmake

it does that automatically

[rocky nova]

Then read this

[wintry spear]

can you send me the full link to the question?

[rocky nova]

https://stackoverflow.com/questions/75046745/ld-lld-error-undefined-symbol-divdi3

https://github.com/gcc-mirror/gcc/tree/releases/gcc-12/libgcc/config/riscv

[rocky nova]

Mayb this helps

Copy paste in ur source

Code

[wintry spear]

not helpful, the problem is with a windows library not being found

[wintry spear]

I'm using cmake, pasting command terminals there is not helpful

[rocky nova]

Ok bro

Let me continue my searching then

[wintry spear]

if you need more information in the issue #help-cmake message

[rocky nova]

https://lld.llvm.org/

[rocky nova]

You can probably find the file here

[wintry spear]

linker is already installed, otherwise cmake would file to generate the config files. The problem is that the linker is not linking the files to the project or the lib that vcpkg has are invalid, meaning a problem in vcpkg

[rocky nova]

Next time elaborate more

[icy oyster]

Subbed

[wintry spear]

I believe the Windows build system is now fixed. There was a bug in vcpkg that didn't allow ffmpeg to build correctly

[rocky nova]

Gonna try building it tmr

[wintry spear]

Hello, could anyone test the new building system on your pcs?

[rocky nova]

I forgot

I'm so sorry

Cloning it immediately give me a sec

gulp

[wintry spear]

no problem, thx tho

[rocky nova]

looks like git just dies before cloning it, I'll get the zip

[wintry spear]

strange

if you get the zip you'll have to initialize the submodules manually

I just saw I forgot to update the readme

wait, I was in the wrong branch

[rocky nova]

I got the build system branch

ughh zip file doesn't have the .git thing

can't do the git submodule update --init --recursive

[wintry spear]

I see. Then the only option is to use git clone

[rocky nova]

I'll try a shallow clone

[wintry spear]

ok

I have to rewrite the ReadMe's Windows build section

[rocky nova]

I love C++ having multiple different building systems 😍

[wintry spear]

haha, they're a pain in the ass sometimes

[rocky nova]

its doing its thing

It's just terribly slow

[wintry spear]

ffmpeg and bullet are a bit big 😅

I will push a new commit in a minute with the updated instructions

[rocky nova]

thats why I hate git

[wintry spear]

weren't the submodules already downloaded during cloning?

[rocky nova]

they failed as well

[wintry spear]

that's so weird

@rocky nova can you send me the error that appeared when you did the git clone?

[rocky nova]

error: RPC failed; curl 92 HTTP/2 stream 5 was not closed cleanly: CANCEL (err 8)
error: 6267 bytes of body are still expected
fetch-pack: unexpected disconnect while reading sideband packet
fatal: early EOF
fatal: fetch-pack: invalid index-pack output

[wintry spear]

ok

can you send me the full output?

[rocky nova]

C:\Users\admin\Desktop\GitHub\lit-engine\include>git clone https://github.com/bulletphysics/bullet3 --depth=1
Cloning into 'bullet3'...
remote: Enumerating objects: 7704, done.
remote: Counting objects: 100% (7704/7704), done.
remote: Compressing objects: 100% (6033/6033), done.
error: RPC failed; curl 92 HTTP/2 stream 5 was not closed cleanly: CANCEL (err 8)
error: 5403 bytes of body are still expected
fetch-pack: unexpected disconnect while reading sideband packet
fatal: early EOF
fatal: fetch-pack: invalid index-pack output

[wintry spear]

ok, thx

it seems that the network is unstable

[rocky nova]

yeah

took me few tries, works finally

alright, I'll get to compilation

[wintry spear]

I sent a new commit with the updated instructions

git pull and reset --hard to the last commit

[rocky nova]

?

[wintry spear]

yes, I sent that commit 2-3 minutes ago and I believe you have cloned the repo before I made that commit

I added a line to the cmakelists and uncommented 5 lines in ./install.bat

[rocky nova]

install.sh but the instruction says install.bat

[wintry spear]

do git branch

you're probably on master

[rocky nova]

oh no

[wintry spear]

do shallow clones also download the other branches?

it seems not. try git fetch --all

[rocky nova]

I had to call --depth=1 on this

[wintry spear]

so it didn't downloaded the other branch

[rocky nova]

seems like it

[wintry spear]

chatgpt says:

git fetch --all
git branch
git checkout build-system

[rocky nova]

thank you git very cool

[wintry spear]

what was the result of git branch?

[wintry spear]

build-system wasn't fetch

okay, what happens if you list all remote branches?

git branch -r

[rocky nova]

guide me

no clue whats this

[wintry spear]

it only has main

git fetch origin build-system

[wintry spear]

so the branch exists but it isn't created locally which is very strange. as a last attempt, we can maybe try to create a new local branch that tracks the remote branch?

git checkout -b build-system origin/build-system

[rocky nova]

what do these even mean

I can reclone this completely if you want

[wintry spear]

your network is unstable and it will probably fail

nvm, It's too much of a hassle

thanks tho

[rocky nova]

I'm gonna get thru this atp

[wintry spear]

okay

can you try:

git fetch --all
git pull --all

[rocky nova]

deleted the folder, recloned and manually called the submodules command and it worked on first try

[wintry spear]

cool, and the branch?

[rocky nova]

build-system

[wintry spear]

yes

[rocky nova]

running install.bat

[wintry spear]

okay, cool

[rocky nova]

😭

I already have it installed lol

[wintry spear]

so cancel it

I have to go to an appointment

Tell me if it worked or not

[rocky nova]

okay

if I ever release something commercially I never want any of this

I'll just write everything from scratch 😭

[wintry spear]

haha, I can relate to that

[rocky nova]

After i have seen this

I don't wanna try git

[wintry spear]

new version of lit engine available for download. https://litengine.org/download

[rocky nova]

./LitEngine: error while loading shared libraries: libBulletDynamics.so.3.05: cannot open shared object file: No such file or directory

[wintry spear]

ups, I forgot to set a command

[wintry spear]

it should now be fixed. the website is building with the linux's fix

it should be up in a few minutes

[rocky nova]

alright

[wintry spear]

working on the shaders

[rocky nova]

Nice

[wintry spear]

interesting shader bug

[rugged swan]

hey i tried downloading your engine but for some reason when i try to launch it i get errors and it does not open

[rocky nova]

Seems like deploying on multiple platforms is the worst

[wintry spear]

basically, I didn't built the engine statically while releasing and that's why you're having those issues. I fixed the Linux ones but not the windows linking issues yet

[rugged swan]

ah alright

[untold lake]

what did you use for the ui?

[wintry spear]

hi, I'm using Dear ImGui for the UI using rlImGui backend

[wintry spear]

Hi there, what do you think of the ui? I'm making some small changes to make it easier in the eyes and more intuitive and I'd like to see the improvements I can still make before I push it.

70 Likes in the forum. Thank you so much!

another image

[wintry spear]

I increased the rounding an it looks a bit better

[rocky nova]

I mean the folders looks too large

And files too

You should color differents parts on the right for example lights is gentle yellow color and physics is blue

Just an example

[wintry spear]

that would go against the gray shade part of the theme. I will decrease the assets explorer cards a bit

it does look better

ty

I think it looks good, I will push the changes

[fiery crystal]

the code editor save and reload (i think) buttons look kinda big imo

and the scene editor ones kinda

[wintry spear]

do 2/3 of the current size feel alright?

[wintry spear]

Plugins are coming!

Using python, I created a simple plugin that creates an imgui window

[little bridge]

nice

do you support non-builtin editors?

btw have you considered .gitignoring the Makfile?

[wintry spear]

not yet but it can be customizable with plugins I hope

[wintry spear]

I decided to delete it. It does not longer exist in the plugins branch

[little bridge]

I see, Im tryna build your engine on my mac again

I have a few questions

youre including the source of bullet as a submodule but are also requiring it to be installed as a lib?

same with a few other libs

[wintry spear]

yes. the source files are needed for the compiler to build the executable but building bullet source files is time consuming and sometimes throws errors. So in order to build the engine faster I download the pre compiled libs and use the source files for the compiler to find the definitions

[little bridge]

I see

Im pretty sure all your libs work on macos, just ffmpeg is a little weird on apple silicon

[wintry spear]

really? how so?

[little bridge]

I think its because of how the package manager installs it, also is there a full list of dependencies?

[wintry spear]

all the dependencies are inside include/ but some of them are only headers and they don't need to be installed

bullet, ffmpeg, libglm, python3.11 and tbb are the ones I installed using a PKG manager.

[wintry spear]

Lit Engine has events support. You can, from python, create event listeners and set a callback that runs when something is triggered. Implemented onEvent (entity creation)

[wintry spear]

plugin example of triggers and listeners. Python can't access the array of entities so it have to wait for the triggered to be called.

Python code for reference:

import random
import os

entityAddedFlag = False
entityRemovedFlag = False

def entityCreated():
    global entityAddedFlag
    print("Entity created!")
    entityAddedFlag = True

def entityRemoved():
    global entityRemovedFlag
    print("Entity removed!")
    entityRemovedFlag = True


def initPlugin():
    print("Hello, Plugins!")
    onEntityCreation("pythonListener", entityCreated)
    onEntityDestruction("pythonListener", entityRemoved)

def updatePlugin():
    initWindow("Plugin " + str(entityAddedFlag), 200, 200, True)

    if entityAddedFlag:
        drawText("An entity was added!", -1, -1, Vector3(0, 255, 0))

    if entityRemovedFlag:
        drawText("An entity was removed!", -1, -1, Vector3(255, 0, 0))

    # Skybox changer code

[wintry spear]

Auto Exposure is now available. Darker colors will slowly transition to brighter colors to match how our eyes behave when transition from a dark place to a whiter place.

[rocky nova]

Wtf thats so cool

[wintry spear]

thanks man

[rocky nova]

yeah that's pretty cool

[wintry spear]

PBR is going well but the performance is not the strongest yet

side by side comparison of Lit engine renderer vs polyhaven renderer of the same model

[rocky nova]

Truly a barrel moment

[wintry spear]

so true

[wintry spear]

PBR scene

with Ambient Occlusion it would be perfect

do you know any simple and easy to implement Ambient Occlusion technique?

[rocky nova]

so cool

[wintry spear]

thanks

[rocky nova]

ermm gonna do an unnecesarry ping but @lapis torrent did do some ambient occlusion on their minecraft clone

[wintry spear]

I believe he did from the screenshots he posted but they are probably voxel based

[rocky nova]

oh

[wintry spear]

but I'm curious to hear his answer

[rocky nova]

I mean

Opengl is your friend

@wintry spear

[lapis torrent]

Yep, my Ambient Occlusion is entirely voxel based

But I think you can maybe use a shader for AO? (for any 3D project not for a voxel game)

Becouse mine uses the voxel grid for colculation

[lapis torrent]

Looks great so far! And AO will make it look evan better!

Also (I don't know if it is already enabled or not but) you could apply Anti Aliasing to make it look less noisy

[wintry spear]

yes, I took an area screenshot, so it got pixelated

[wintry spear]

I can use ssao but I couldn't implement it (I kinda suck as shaders)

[rocky nova]

Meh

NOT REALISTIC ENOUGH

[wintry spear]

hey

it's realistic 🤣

[wintry spear]

I just pushed the new renderer to github

there is realistic specular lighting now

[edgy dirge]

awesome!

[wintry spear]

performance is only slow when there are multiple high resolution textures to be mapped in the GPU. does anyone know how it could be optimized?

should I instead pass a 2d array and use the UV coordinates to map through it?

[wintry spear]

Best speed ever

https://litengine.org

[wintry spear]

ChatGPT now accurately knows Lit Engine

[rocky nova]

may be just chatgpt remembering you asking related to lit

[wintry spear]

there's another game engine?

[wintry spear]

but the website links chatgpt gave me were right

[rocky nova]

try opening an incognito window

and ask without logging in

[wintry spear]

ok

I created a new account to use gpt 4o free samples and used this prompt:

Hi. what can you tell me about Lit Engine? Can you provide me with the game engine's website URL and some information?

[rocky nova]

https://www.litmotors.com/

i only found this but funni

[crystal elm]

chatgpt is a not know your engine ask it about engine

[wintry spear]

if you use gpt 4o with web access it identifies the engine

[rocky nova]

Ok

[edgy dirge]

any planned updates coming soon?

[wintry spear]

yes, I'm making version 0.0.5 with upgraded lighting and shader effects, improved UI, scripting, audio plugins, unreal like material editor, etc..

[crystal elm]

and you need to update your theme in your editor ?

[wintry spear]

that's just the default one but you can create your own

but what is bad in the current theme?

[crystal elm]

the is bad is a default also

[rocky nova]

pov : me when lit engine is dead

[wintry spear]

fr

I really want to get back to it during the holidays

[rocky nova]

ok

[wintry spear]

I'm preparing a breaking change to Lit Engine. Branch and latest commit.

This new material system will allow you to create a "master" material and "children materials". Similar to Unreal Engine

This means you will have more control over the material itself. You will be allowed to multiply a texture, let's say the normal texture making the normal effect more protruding.

The material children will be displayed in the material inspector section: Entity Inspector -> Material; and the master material inside the node editor.

Since this feature adds complexity, Lit Engine will provide its users with material templates so that the users don't have to create their materials from scratch if they don't want to.

This feature is expected to take a while to implement. Since I have school and this year is exam year I won't be able to develop as much as I want to, so I don't expect to have this feature implemented before the end of next year's summer.

The purpose of this version is to make Lit Engine "usable" with acceptable graphics, performance, features, scripting capabilities and intuitiveness and this is a common feature implemented in many graphics software such an blender and unreal that allow the end user to have more control over the renderer. This feature also goes under the costumizable render pipeline that was asked to be implemented and under the current wish-list.

I would also hear what you have to think about this feature. Do you have any concerns or ideas?

If you'd like you can contribute to the code. I'm currently implementing the node system. I'm using TheDMD's imgui-node-editor that gives me more control over the node's editor but requires me to implement the node system myself.

What can you do?
-Review and enhance the node rendering.
-Help me implement the links between pins.
-"Pass information" between connected pins through links.

I'm finishing a basic node rendering with title pins and the node content's render. After that I aim to start working on the pins connection and information transmission between nodes

Here is the imgui-node-editor system github repo I'm using.

[rocky nova]

do you know about node sorting algorithms ?

[wintry spear]

yes, like topology and breadth-first search algorithms?

basically performing a DFS

why?

[rocky nova]

i just thought maybe i could gather ur help someday for a project that requires me to use my brain to sort nodes

i made a lua parser that turns lua bytecode into a graph

but the thing is that i'm so trash i can't figure out a way to properly represent a control flow graph with 2d nodes

[wintry spear]

I never implemented such algorithms. I just know them from the top tho

[wintry spear]

Nodes rendering and a basic linking system up and running

the link start and end position still need some review

[wintry spear]

Not memory safe yet! Links now pass data between (void* type which is not memory safe). The image shows 2 nodes, a slider of type int and 1-x node. The slider is passing -27 to 1-x. Doing the math, 1-(-27)=28 which is the output that is shown on the node text.

I also fixed the links position shifting.

the changes will be pushed soon.

[wintry spear]

https://github.com/luis605/Lit-Engine/commit/5478ce4305c497cfb7d2400c06e588289a156e2a

[rocky nova]

use std::any if you're on C++

[wintry spear]

totally forgot about its existence. thank you ❤️

[wintry spear]

Done! https://github.com/luis605/Lit-Engine/commit/5cb58577ac8d92184caab2d583ec9c9e1d0b1590

[wintry spear]

The website is looking good. I hope to publish it on the Christmas holidays

[wintry spear]

New UI live: https://litengine.org/

[wintry spear]

I'm gonna slow down the development to focus on myself and to rest

[dreamy mantle]

Does the Lit Engine have a physics engine?

[wintry spear]

yep, bullet3

[wintry spear]

Update
Just commited this commit to Lit Engine.

Idea
The material system now introduces a hierarchical structure for materials:

Master Materials - Serve as blueprints for shaders, storing the node graph that defines the material logic and cannot be directly assigned to an entity as they represent the core shader logic.

Child Materials (or Master Material Instances) - Provide specific values for the shader parameters defined in their Master Material; Can be assigned to multiple entities, with each instance having its unique parameter values; Can be reused and are flexible as they share the same shader while enabling customization.

/------------\
|   Texture  |
\------------/

/------------\
|  Multiply  |  multiplies the values in the texture
\------------/

Material Node -> Pin: Normal Map

This simple material setup will modify a normal map’s intensity:
-> A Multiply value > 1 makes the map more intense.
-> A Multiply value < 1 softens it.

What's New?
-> Graph Representation: Implemented!
The nodes are now represented as a dependency graph for a clean dependency structure.

Next Steps
-> Compile the shader based on the graph.
-> Dynamically link the shader with GPU buffers to enable real-time parameter edits.

[little bridge]

wow your engine has come so far

[wintry spear]

a long way to go too

[wintry spear]

I'm exploring with tree-like structure for acyclic and easier graphs. Example of it working flawlessly:

Console output:
Node 11
├─ (Pin: 13) -> Node 1 (Pin: 2)
├─ (Pin: 14) -> Node 3 (Pin: 4)
└─ (Pin: 19) -> Node 7 (Pin: 9)
    └─ (Pin: 8) -> Node 5 (Pin: 6)

Sometimes nodes are not rendered. Still investigating. Next job after cleaning up the code and tweaking it is passing this to a shader.

I'm thinking of having some predefined functions such as:

const char* multiplyColorTextureShaderNode = R"(
vec4 multiplyColorTextureShaderNode(vec4 texColor, float multiplier) {
    return vec4(texColor.rgb * multiplier, texColor.a);
}
)";

const char* multiplyFloatShaderNode = R"(
float multiplyFloatShaderNode(float value, float multiplier) {
    return value * multiplier;
}
)";

const char* OneMinusXShaderNode = R"(
float oneMinuxX(float value) {
    return 1 - value;
}
)";

That get injected/appended into a string containing the shader code if needed. then I procedurally generate the code. Example:

vec4 diffuseTexture(texCoords) {
   vec4 loadedDiffusePixelValue = sample texture...  // Immutable
   loadedDiffusePixelValue = multiplyColorTextureShaderNode(loadedDiffusePixelValue, OneMinusXShaderNode(loadedDiffusePixelValue.x, 0.3));  // C++ side generated
    return loadedDiffusePixelValue;
}

Then I just load the shader from memory and voila.

what do you think?

The c++ side generated code will be a bit messy and not directly changable by the user

Only Lit Engine will handle it.

[wintry spear]

Seems to be working.

[wintry spear]

We have a shader function for the clear coat parameter 🎉
C++ generated function

float magicNumber() { return multiplyFloat(5.966000, 1.0 - 13.310000); }

[wintry spear]

https://github.com/luis605/Lit-Engine/commit/c7ccbaf3975d86b78e52cbedabbf682bf3d751aa

[wintry spear]

I updated the shader generator to support pin-based code calculation. Now, the shader code is generated based on the pins in each node, allowing for more accurate handling of nodes with multiple input pins, like the root node.

vec4 diffuseMap() {
return vec4(1.000000, 1.000000, 1.000000, 1.000000);
}

float magicNumber() {
return multiplyFloat(1.0 - 18.018000, 1.0 - multiplyFloat(49.091999, 1.0 - 18.018000));
}

[brisk moat]

Fyi, Arch winesapos: #raylib-promotion message

BTW, for 1.1% of python code, makes for a heavy dependency. Probably making python an optional "feature" would be better to avoid friction of installs.

[wintry spear]

how do you suggest the scripting to be implemented?

c++ will be added probably in this version so make python an add-on?

[brisk moat]

I don't know how you added the scripting, but luau or lua could be fine and could go directly in the lit engine binary.

And yes, making things add on is probably better. But you know best your codebase and you've done the python integration so you probably know more about how it can be integrated. I know luau is a good candidate as I've used it and it's pretty easy and debuggable.

[brisk moat]

For C++ are you going to use dynamic libs that tag on ?

[wintry spear]

I chose python for its ecosystem, ease of use and the future it promises in terms of performance. And that were some of the reasons why I didn't choose Lua.

[wintry spear]

I'm gonna use static libraries so there is no dll dependency issue

[brisk moat]

Luau is already used for game code and performance(basically Roblox scripting)

[wintry spear]

yes but a while ago the ecosystem of libraries and functionalities were not promising. idk how it is now

[brisk moat]

Normal lua isn't indeed performance focused.

[wintry spear]

yeah

[brisk moat]

What libraries does python give you that are valuable ?

[wintry spear]

the pip has lots of valuable libraries for algorithms such as path finding, file manipulation, and other specific libraries but it is up to the user to choose what libraries they want

panda is also a valuable library

[rocky nova]

Objection C# ecosystem is better than python and libs are good

+best pckage manager you ever get

[brisk moat]

Euhm.... I would expect an engine to expose path finding, not the scripting language libraries... Using something like Recast/Detour.

Guys, IMHO you don't want your scripting language to expose libs that should be the responsibility of the engine or engine add-ons/plugins.

In the end, I don't have any sway or skin in this game, but having different deps or libs available based on what scripting language you use could urk users, maybe.

[rocky nova]

Its up to lixt /shrug

[brisk moat]

Yup

[wintry spear]

yes I agree with you

but one of the flaws with Roblox is that the users needed to write their own libraries

and that was something I dislike

but I will do some research and see how the ecosystem is doing

[fiery crystal]

this

[rocky nova]

However cpp and c# kinda has simular syntax

So python would be less code

But idk

[wintry spear]

python is intended for beginners who want to get started in programming with lit engine

and a compiled language such as c++ would be performance focused and intended for intermediate and advanced developers