Tinyrenderer, but in bash (and ANSI escape sequences)

What?

As is said, this is an attempt to follow ssloy's tinyrenderer course (older version here) but without stepping half a foot outside GNU bash & ANSI escape sequences. And as seen from the state of this repo - it's... not really going too well.

No vibe coding/AI that edit the codebase. This bad idea is 100% birth from a human, start to finish.

Why?

Once again, good question.

How?

The "canvas" initialization and pixel drawing was handled by my bash-graphics scripts. Basically it uses ANSI escape sequences to change the printing cursor's position and colors (foreground and background). It then prints a ▀ character, which with both the fg and bg being changeable represents 2 vertically stacked pixels.

Performance?

Run

1. git clone this
2. Open terminal in root of project & git submodule init
3. bash lesson<number>/<filename>.bash

• If it complains about the terminal being too small, hit Ctrl+- a whole bunch and try again.

TODO:

• obj parser
• Rest of course
• Rest of course, but 100% integer math
• o p t i m i z a t i o n s

Course Progress:

• Bresenham’s line drawing
  • Homework: obj wireframe rendering
• Triangle rasterization
  • make it so where rendering big triangles don't seemingly crashes my Desktop
  • Bug squashing
  • Bug squashing
  • Bug squashing
  • Bug sq
• Barycentric coordinates
• Hidden faces removal
• Naive camera handling
• Better camera

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Showoffs:

lesson1_whale.mp4

diablo.mp4