fahien - Network

I published "Computer Graphics: Follow the light". My talk at Paestum Tech Days, 1st of September 2024. Italian with english...

I published "Computer Graphics: Follow the light". My talk at Paestum Tech Days, 1st of September 2024. Italian with english subtitles.
https://www.youtube.com/watch?v=2r3eyy8Y3Bw

Naive pathtracing needs a high number of samples per pixels to get an acceptable result, and shooting too many rays drastically affects FPS....

Naive pathtracing needs a high number of samples per pixels to get an acceptable result, and shooting too many rays drastically affects FPS. But then look at the result once it starts importance sampling the light! 💡

#vulkan #raytracing #rust #rustgpu

After several weekends spent debugging validation layer errors and my iterative pathtracing algorithm, I can finally enjoy a bit of...

After several weekends spent debugging validation layer errors and my iterative pathtracing algorithm, I can finally enjoy a bit of home-made real-time interactive raytracing.

#Vulkan #RaytracingPipeline #Rust #rustgpu

ANGLE finally has a ninja target for installing it to a user-defined prefix with pkg-config files for libEGL and libGLES*! 🤓...

ANGLE finally has a ninja target for installing it to a user-defined prefix with pkg-config files for libEGL and libGLES*! 🤓

https://chromium-review.googlesource.com/c/angle/angle/+/5553797/5

I encountered a file.c which first line is a comment suggesting to run it with 𝚜𝚑 𝚏𝚒𝚕𝚎.𝚌I laughed hysterically for 5...

I encountered a file.c which first line is a comment suggesting to run it with 𝚜𝚑 𝚏𝚒𝚕𝚎.𝚌

I laughed hysterically for 5 minutes.

Er, close enough.. #egui

Er, close enough.. #egui

I mean, I just wanted to draw a series of diagonal lines, but that's nice enough. #egui

I mean, I just wanted to draw a series of diagonal lines, but that's nice enough. #egui

Wow, this is new..#pathtracing

Wow, this is new..
#pathtracing

Sometimes I am not sure if there is a bug in my raytracer or I am just making digital art.

Sometimes I am not sure if there is a bug in my raytracer or I am just making digital art.

When using a variable, the compiler looks for it in the list of symbol tables from the most recent (back of the list) to the least recent...

When using a variable, the compiler looks for it in the list of symbol tables from the most recent (back of the list) to the least recent (front of the list).
If it does not find it, a 𝚟𝚊𝚛𝚒𝚊𝚋𝚕𝚎 𝚞𝚗𝚍𝚎𝚏𝚒𝚗𝚎𝚍 error is emitted.

When defining a variable, a new entry (𝚗𝚊𝚖𝚎, 𝚊𝚍𝚍𝚛𝚎𝚜𝚜 𝚒𝚗 𝚖𝚎𝚖𝚘𝚛𝚢) is added to the...

When defining a variable, a new entry (𝚗𝚊𝚖𝚎, 𝚊𝚍𝚍𝚛𝚎𝚜𝚜 𝚒𝚗 𝚖𝚎𝚖𝚘𝚛𝚢) is added to the most recent symbol table (local scope, back of the list).

Variables in the #Cal programming language: the compiler maintains a list of symbol tables.Each function has its own scope for local...

Variables in the #Cal programming language: the compiler maintains a list of symbol tables.

Each function has its own scope for local variables, effectively appending a new symbol table to that list, and popping it when the function's scope ends. 🧵

Just added support for expressions to the #Cal programming language, defined recursively as (𝚃𝚎𝚛𝚖,...

Just added support for expressions to the #Cal programming language, defined recursively as (𝚃𝚎𝚛𝚖, 𝙾𝚙𝚝𝚒𝚘𝚗(𝙾𝚙𝚎𝚛𝚊𝚝𝚘𝚛, 𝙴𝚡𝚙𝚛𝚎𝚜𝚜𝚒𝚘𝚗)). With this I can write code such as 𝟷 + 𝟸 + 𝟹 + 𝟺 + 𝟻 ... and so on, until the stack overflows. 🤓

3. Clone lsp-sample and add the npm package as a dependency. https://github.com/Microsoft/vscode-extension-samples/tree/main/lsp-sample4....

3. Clone lsp-sample and add the npm package as a dependency. https://github.com/Microsoft/vscode-extension-samples/tree/main/lsp-sample
4. Improve server.ts 𝚟𝚊𝚕𝚒𝚍𝚊𝚝𝚎𝚃𝚎𝚡𝚝𝙳𝚘𝚌𝚞𝚖𝚎𝚗𝚝() by calling 𝚌𝚑𝚎𝚌𝚔(𝚝𝚎𝚡𝚝) and catch any 𝙹𝚜𝙲𝚊𝚕𝙴𝚛𝚛𝚘𝚛 to generate diagnostics.
5. Enjoy your productivity tool. 🧑‍💻

1. Implement a function 𝚌𝚑𝚎𝚌𝚔(𝚌𝚘𝚍𝚎: &𝚜𝚝𝚛) returning 𝚁𝚎𝚜𝚞𝚕𝚝<(),...

1. Implement a function 𝚌𝚑𝚎𝚌𝚔(𝚌𝚘𝚍𝚎: &𝚜𝚝𝚛) returning 𝚁𝚎𝚜𝚞𝚕𝚝<(), 𝙹𝚜𝙲𝚊𝚕𝙴𝚛𝚛𝚘𝚛>, where the error contains both a message and a range.
2. Use 𝚠𝚊𝚜𝚖-𝚙𝚊𝚌𝚔 𝚋𝚞𝚒𝚕𝚍 --𝚗𝚘𝚍𝚎𝚓𝚜 and publish to GitHub npm registry.

I implemented a language server #VsCode extension for my #Cal programming language. It was quite simple. 🧵

I implemented a language server #VsCode extension for my #Cal programming language. It was quite simple. 🧵

Translation to VM instructions requires improving the 𝙲𝚊𝚕𝚕 instruction, adding a list of expression which are going to be the...

Translation to VM instructions requires improving the 𝙲𝚊𝚕𝚕 instruction, adding a list of expression which are going to be the argument values, to the name of the function to call: 𝚅𝚖𝙸𝚗𝚜𝚝𝚛𝚞𝚌𝚝𝚒𝚘𝚗::𝙲𝚊𝚕𝚕("𝚊𝚍𝚍", 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚒𝚘𝚗𝚜)

Adding support for parameters to function calls in the #Cal programming language:- the parser eats (- checks whether it can parse any...

Adding support for parameters to function calls in the #Cal programming language:
- the parser eats (
- checks whether it can parse any 𝚒𝚍𝚎𝚗𝚝𝚒𝚏𝚒𝚎𝚛: 𝚝𝚢𝚙𝚎 separated by commas
- eats the final )

Adding support for calling a function in the #Cal programming language is straightforward. I parse an identifier followed by (), and then...

Adding support for calling a function in the #Cal programming language is straightforward. I parse an identifier followed by (), and then emit a 𝚅𝚖𝙸𝚗𝚜𝚝𝚛𝚞𝚌𝚝𝚒𝚘𝚗::𝙲𝚊𝚕𝚕. Thanks intermediate representation!
Adding support for args is the next step.

Adding support for local variables to my programming language. The easy way: allocating a 𝘭𝘰𝘤𝘢𝘭 segment on the stack with...

Adding support for local variables to my programming language. The easy way: allocating a 𝘭𝘰𝘤𝘢𝘭 segment on the stack with size = (𝚗𝚞𝚖𝚋𝚎𝚛 𝚘𝚏 𝚕𝚎𝚝 𝚒𝚗𝚜𝚝𝚛𝚞𝚌𝚝𝚒𝚘𝚗𝚜) * (𝚋𝚢𝚝𝚎𝚜 𝚗𝚎𝚎𝚍𝚎𝚍 𝚏𝚘𝚛 𝚎𝚊𝚌𝚑 𝚟𝚊𝚛𝚒𝚊𝚋𝚕𝚎)