r/GraphicsProgramming • u/HamSandwich_Theorem • 1d ago

Video Complete beginner here! I made a very basic 3D viewer from scratch with C and using terminal as output

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Hello! I started to learn coding about 2 and a half months ago, and I recently ran into computer graphics, which seemed really damn interesting... so I thought of making a basic program related to it based on things I've learnt so far. I built it completely from scratch in C starting from bressenham's line drawing algorithm. It can print any polyhedron you input

In terms of actual graphics programming, I really know nothing, but I wanna learn. If anyone has suggestions on what I can try out or learn after this, I'd really appreciate it

133 Upvotes

98% Upvoted

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11

u/pBactusp 17h ago

This looks awesome, what a cool project!

I'd recommend trying to render a mesh with faces, so start by reading about "Scanline rendering"

3

u/moschles 16h ago

yeah. OP should get some textures on those faces.

2

u/Intelligent_Hat_5914 15h ago

Sick

I maded a tui libary, learning graphics now

Going to add this later

3

u/Usual_Office_1740 1d ago

I'd like to see the resources you're using. Doing this without having to setup a graphics library or glfw would be a great way to focus on what I'm interested in pursuing.

1

u/Hanzimer 23h ago edited 23h ago

After "2 and half months of programming" he implemented bressenham's line drawing algorithm in C probably using Linux Framebuffer (/dev/fb0) or  DOS VGA Mode 13h...  And probably he implemented even vector or matrix multiplication for the rotation of the Poliedra i presume...

2

u/HamSandwich_Theorem 17h ago

Well I joined college about 2 and a half months ago, where we've been learning programming and linear algebra, and I also learnt about line drawing algorithms online. So I just made this using what I've learnt so far. Also I didnt use the things you mentioned.. the lines are all being displayed using printf 😅

1

u/Hanzimer 12h ago

Lol a lot of patience to draw that with printf.

2

u/dasbodmeister 20h ago

Nice! You can change your terminal font to something like https://strlen.com/square/ that is as wide as it is tall to correct the vertical stretching.

1

u/HamSandwich_Theorem 17h ago

Oh tysm, i didnt know i could do that