Ruijie Fan
AboutPublicationsProjectsByte WorldAwardsCV

Byte World

Small systems built from first principles. Notes on the mathematics, implementation choices, mistakes, and experiments that made each idea click.

2 notes

Notes

Graphics from Scratch2026-08-121 chapters

纯 Python 实现 CPU 光栅渲染器

仅借助 SDL2 和 NumPy,从窗口与像素输出开始,逐步实现可实时交互的 CPU 软光栅渲染器。

Computer GraphicsPythonRasterization
In progress
Generative Models2026-08-12 2 min read

Flow Matching from Scratch

A minimal path from conditional probability paths to a working PyTorch vector field, with the implementation choices that matter.

Flow MatchingPyTorchGenerative Models
In progress

Last updated: August 2026

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