Jakub Tomšů
@jakubtomsu_
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20. Solo indie gamedev, Custom game engines, Odin. Working on a retro FPS game with space warping
Prague, Czech Republic
Joined September 2018
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This is a small boomer shooter prototype I've been working on lately. The world is 16x16x16 blocks and it infinitely repeats itself.
#gamedev
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This could have been a single line of code in the vertex shader instead of a skeletal animation...
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Reminder perceptual color models like Oklab exist and they are much better at interpolating colors than regular sRGB. Notice the lower saturation and value in the center of the first gradient:
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Ceiling is being raised. Cursor's Copilot helped us write "superhuman code" for a critical feature. We can read this code, but VERY few engineers out there could write it from scratch.
@yoheinakajima
ceiling is being raised. cursor's copilot helped us write "superhuman code" for a critical feature. We can read this code, but VERY few engineers out there could write it from scratch.
Took lots of convincing too. "come on, this must be possible, try harder". and obviously- done
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I saw this meme on instagram. My generation is so cooked lmao
Do people really think learning a framework makes you better at programming than learning assembly? The framework will be outdated in a few years, computer fundamentals will not
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The line of code I'm talking about is something like:
vert_pos.xz += vec2(cos(local_pos.y*squish+freq*t), sin(local_pos.y*squish+freq*t)) * strength;
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Simulating a game at 10 ticks per second,
No Interpolation vs. Basic Linear Interpolation
I'm writing a blog post about about using fixed timestep update loops for all gameplay code, not just the physics sim...
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To clarify, I don't think using skeletal animation for this is that bad. Just use whatever works for you. I'm also not particularly concerned with performance, something like this shouldn't have much of an impact. A simple vertex shader is just something I personally would prefer
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Here is a neat little way to do "smooth clamp":
smoothstep(min, max, x) * (max - min) + min
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finally got some combat going. There is still a ton of work left to do, but I feel pretty good about this
oh and I'm also considering setting up a steam page soon btw
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@CookedDickhead
You also don't need several years of rigging and animation experience to use a simple high-school math and basic shader knowledge 🤷♂️
But yeah I get your point, ofc some people have different skill sets so just use whatever works for you :)
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I feel like the term "spaghetti code" is misused almost as often as "premature optimization is the root of all evil"
There is a lesson in that these are all long-beloved and successful games
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@mohamedmansour
This is actually a new api, and it's way worse than the old one (it does have a few more features tho)
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unfortunately we're approaching 15FPS 480p graphics considering how much everyone relies on upscaling and frame generation
as we approach 120FPS 8K graphics, at some point we must rasterize each triangle to N frames in parallel, into a render target that is lossy-tile-compressed across 3 dimensions: X, Y, and N
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I just turned 20 today, does the "I'm an adult now" feeling ever kick in?
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this is genuinely one of the best things about
#odinlang
. The language is so simple and it's basically done. I don't have to worry about learning new shit every week like in C++/Rust/javascript
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this goober doesn't understand what a memory leak is
Dev: I have a memory leak
Me: Does your process crash for an OutOfMemory error?
Dev: no
Me: Then you don’t have a memory leak
(There might be still a memory management issue, but that’s not a leak).
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The RAD Debugger by
@ryanjfleury
is absolutely fantastic.
Here I'm stepping through code that converts the procedurally generated SDF and color textures before they are uploaded to the GPU.
This an insanely powerful feature. Apparently it can also show 3d mesh data!
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@CryZe107
Oops, you're right, I made a slight mistake. The top one interpolates sRGB colors directly, instead of interpolating linear color and applying gamma. Thanks for noticing😅
The difference is still very noticable in certain other combinations like yellow and blue (oklab is left)
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@1600frogs
I think that's one of the reasons why older games with precomputed lightmaps still hold up so well...
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I finally made a first short Devlog about my game. Here is a combat clip with multiple enemies from the video
I'm pretty happy with how it turned out, it's very casual but I that's fine imo. Check it out:
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I implemented hot reloading in my engine some time ago, and now I couldn't live without it. It opens up a whole new set of possibilities, because iterating on subtle gameplay behavior or shaders becomes _much_ less painful.
The instant feedback loop is insanely powerful.
When I was doing game dev in C++ I set up my engine to load my game code via an DLL. Meanwhile the game state memory is kept on the engine heap.
This means you can change the game behavior, compile the DLL and reload it in a split second, instead of having to relaunch the entire
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It's pretty wild how different the company culture at valve is compared to everywhere else. And they manage to do insanely cool things with just a few hundred people...
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Here are a few links:
The implementation I currently use by Inigo Quilez:
Full article by Björn Ottosson, the author of Oklab:
Xor's mini blog post about Oklab:
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WIP first person combat animations, it's blending poses procedurally based on the player state machine
#odinlang
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something is telling the there might be a bug with my skeletal animation code...🤔
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This is a great talk about the tech behind Java's Hotspot JIT compiler. It uses Sea of Nodes instead of basic blocks like LLVM, which is a really cool technique.
Something similar is also used in Tilde, the new WIP backend for
#odinlang
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funny bug, the enemy doesn't doesn't despawn correctly when it dies so the blood particles spawn every tick
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@sonofdadkiller
Because your computer doesn't have infinite amount of memory. That said, I'm sure there is a lot that could be done to make it feel "almost infinite". Compressing undo steps in memory, discarding every n-th old step, and saving very old steps to disk should help a lot
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I added support for hot reloading to my engine, which means I can also trivially reload all shaders.
Now the iteration loop is super fast, and not as annoying as relaunching the game after every small change :)
#glsl
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Solar Storm is made in my custom engine written in Odin.
The Renderer uses sokol_gfx by
@FlohOfWoe
.
A short thread about how the redering works behind the scenes...
#indiedev
#programming
Solar Storm is a turn-based artillery shooter set in the far future.
Engage in battles with your friends using unique weapons in a fully destructible terrain, in Local-Multiplayer or Co-Op modes!
Wishlist on Steam!⬇️
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Ah yes, more UB is exactly what C++ needs. What a fantastic language
C++23 has "first-class UB": you, the language user, can make promises and let the program enter UB if you break them.
int f(int x, int y) {
[[assume(x == 27)]];
[[assume(x == y)]];
return y + 1; // May be optimised to `return 28`.
}
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Here is a clip from AstroGlide, a game I'm making for GameBoy Jam 11. All of the pixelart is by
@jammigans
!
#GBJam11
#GBJAM
#pixelart
#gamedev
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Today I implemented a simple tile editor for my FPS game with infinitely repeating world
So far it supports adding and removing blocks, undo/redo, and copy&pasting sections.
#gamedev
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working on a youtube video about custom engines and Odin...
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@htmx_org
"Noo you cannot include comments in a standard JSON!!!"
"How dare you add a trailing comma to an object!!"
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Turns out me and
@karl_zylinski
started using odinlang at pretty much the same time, and also released our first solo commercial games at the same time.
coincidence? I think not!!
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New blog post about Solar Storm renderer is on my website. It goes in-depth on instanced rendering, shaders and post processing.
The entire game is rendered in ~0.5 ms thanks to sokol_gfx by
@FlohOfWoe
and the Odin programming language by
@TheGingerBill
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somehow I gained like 500 followers only in the last week or so, I really appreciate all the support!
more gamedev stuff is coming soon💯
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Here is the article, it's still a bit WIP so any feedback is appreciated!
It covers update loops, interpolation, game state double-buffering, and correct input handling with fixed timestep
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I started preparing the Solar Storm release for , which is going to include the full source code
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Solar Storm is out now on ! It includes the full source code, so now you can check out the custom engine implemented in Odin, and the sokol_gfx renderer
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ok the image above has a mistake, the difference isn't _as_ noticable. But Oklab is still really useful!
@CryZe107
Oops, you're right, I made a slight mistake. The top one interpolates sRGB colors directly, instead of interpolating linear color and applying gamma. Thanks for noticing😅
The difference is still very noticable in certain other combinations like yellow and blue (oklab is left)
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SOLAR STORM IS OUT NOW ON STEAM!!
There is also a 15% launch discount!
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🚨 Solar Storm Demo is OUT NOW!!🚨
Check it out on Steam and Wishlist the game :)
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Are you even a real gamer if you play with FOV lower than 170 degrees?
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My game is coming out in one week!
This is probably the coolest trickshot I ever got, and it's with one of the most powerful weapons in the game
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multithreaded black hole particle simulation. Takes about 20ms to update 5 million particles.
#odinlang
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Solar Storm is a turn-based artillery shooter set in the far future.
Engage in battles with your friends using unique weapons in a fully destructible terrain, in Local-Multiplayer or Co-Op modes!
Wishlist on Steam!⬇️
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To clarify, I'm not saying learning frameworks isn't valuable. You probably need it to get a job and you can learn a lot as well.
I just don't understand why people reject the idea of learning assembly (or other low level concepts) so strongly. Expanding your knowledge of the
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Love to see studios using non-mainstream engines!
Hold up, Helldivers 2 was made with Autodesk's Stingray engine?!
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Super early footage from a game I've been working on for the past few weeks. It's a tiny fast-paced roguelite, with combat focused on your sword and a grappling hook.
#gamedev
#screenshotsaturday
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@thejorgg
I'm not really talking about _writing_ assembly.
Being able to read generated code, understanding what the compiler does, other bytecode formats, cpu microarch, binary and hardware exploits, etc etc are all things you need to know at least a bit of assembly to understand
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CHAT IS THIS REAL?!??
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@regalstreak
You can imagine the cos/sin as going in a spiral, so the local Y position defines the starting offset on it. So squish essentially controls the spiral turn rate... I'm not sure if there is a better way to explain this without visualizing it😅
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This should be the norm everywhere
Switzerland now requires all government software to be open source
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I made a little utility for generating GLSL code from basic Odin code, to interop with shaders. It supports only constants atm, but it's easy to extend.
This was trivial because there is an Odin parser in the core library
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I'm making this game in a fully custom game engine written in
#odinlang
, objectively the best language for gamedev
I finally made a first short Devlog about my game. Here is a combat clip with multiple enemies from the video
I'm pretty happy with how it turned out, it's very casual but I that's fine imo. Check it out:
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_entire_ tech stack down to the hardware level makes you a much better programmer.
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@rsms
I don't think maintaining an implementation of both 'do' and 'undo' sounds fun. Maybe I could write into some temporary state and only "commit" once when I know all operations passed? If that's possible depends on the specifics...
Also, defer is a great alternative to gotos:)
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My article about Solar Storm renderer architecture has been featured in Graphics Programming weekly!
Graphics Programming weekly - Issue 330 - March 10th, 2024
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Where did y'all come from haha😄
Thanks for following my gamedev journey anyway!
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Fidelity is not the same as quality, and at some point it becomes a tradeoff.
This is the reason I like to use a retro artstyle in my games
Honestly would've been fine if we stayed within the PS2 generation for another 20 years. Normal maps are ugly.
If you have strong art direction the poly/texture limits are fine, and I don't feel as though gameplay evolved much beyond this era.
sometimes less is more.
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A added some new debugging tools to my game, one of them lets me view everything in third person.
It's surprisingly difficult to control the player like this, but it also looks kinda funny
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Experiments with dynamic lighting in my engine from like two months ago
I tried out AO raytracing, caching light into voxels, simple GI probes and regular voxel AO + vertical shadows based on bitmasks
I don't use any of it atm but I might come back to one of these eventually...
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looks like twitter fired all the UI designers because wtf is this rounding and padding
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@transmutrix
It would drive me insane if the "write code -> test in game" iteration loop took more than a few seconds hahah
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I recently created a repository for tracking all interesting
#odinlang
libraries, bindings, resources and other projects✨
We're still adding new stuff, there are so many cool odin projects out there but not many people know about them.
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Alright, here is the video! I explain what makes
#odinlang
a good programming language for games and engines
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@rflaherty71
yeah sure it's not a high priority issue... but I wouldn't go as far as calling it "not a memory leak" haha
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