blog.ishdeshpa.com

Ascii-based Rendering

Mon, 04 May 2026 00:00:00 +0000

May 04, 2026

For my graphics final project, my partner Eva Nance and I implemented ascii-based rendering hugely inspired by this blog post.

I really loved the demos and explanation this provided, so go check out the original author Alex Harri!

Graphics Final Project Report

Goal

The goal of our project was to create an ASCII art renderer, based off of this blog post. We wanted to be able to algorithmically convert any image into ASCII art. Additionally, we wanted to demonstrate the difference between sampling a given frame at different text sizes, subcell resolutions, fonts, and gradients.

Noise Generation

Sat, 04 Apr 2026 00:00:00 +0000

April 04, 2026

I wanted to experiment with noise-based world generation using white, value, and Perlin noise after I learned about them in my Graphics class. So I built a quick little script to generate Minecraft-style worlds with them. Here’s some screenshots.

Repo link

White Noise

Value Noise

Perlin Noise

Anyways, that’s all for now.

Little C Project -- Falling Sand

Mon, 05 Jan 2026 00:00:00 +0000

January 05, 2026

So it turns out I can’t work all day and all night on a single project without burning out on it. And yes, I know I said last post that I would get it out by the end of 2025, but that didn’t end up happening. Don’t worry, I’m still working on memory allocation and hyper-optimizing my bitmap algorithms, but I think I need some instant gratification to provide a break in my routine.

Waddle OS -- Beginnings

Sun, 02 Nov 2025 00:00:00 +0000

November 2, 2025 (but a work in progress since the last post on September 29, 2025)

Now we’re getting to the meat and potatoes of this project. Or maybe not.

Even after setting up a basic bootloader and booting into the kernel, there’s still a lot of stuff we have to do. In a vague ordering:

Set up the GDT (again)
Set up the IDT for interrupts
Set up printf for debugging purposes
Figure out which timer interrupt to use for scheduling
Set up paging (again), but this time instead of identity mapping I need to do a higher-half kernel.
Write the scheduler

and since I took it upon myself to write my own bootloader, if the bootloader breaks at any point I’m going to have to go fix it.

Waddle OS -- Bootloader Bare Bones

Mon, 29 Sep 2025 00:00:00 +0000

September 29, 2025 (but a work in progress since early June)

I’ve finally started my OS-dev project. In the effort of trying to document what I learn, I’m going to try to use this blog more frequently as a means of writing to an audience about the new stuff I learn.

You can find the source code here. I’m calling it WaddleOS because it’s my first baby steps towards an operating system but also because of the Linux mascot being a penguin.

ECE380L: Networking with an RTOS

Wed, 07 May 2025 00:00:00 +0000

May 07, 2025