This web content by Oscar Toledo G. showcases a port of the Ray Tracer in Atari 8-bit BASIC by D. Scott Williamson into a boot sector. Toledo G. made changes to the original code to adapt it to a smaller size and improved efficiency. Surprisingly, the animation runs in real-time on modern computers, even on VirtualBox on a Macbook Air running Windows XP. The process of assembling the code using Netwide Assembler (NASM) is explained, along with compatibility with different emulators. Toledo G. also promotes his books on 8086/8088 assembler programming. The web content provides a detailed guide on how to use the ray tracer and offers resources for further learning.
https://github.com/nanochess/RayTracer