This is a fun challange for building a simple ray tracer. We're going to build that step by step with instructions given by @aslrousta. I thank him for initiating this challenge. I add more steps as we go forward.
This project is written in C++ and OpenGL and is tested on macOS 10.15 (I haven't tested it on other OSs). I invented the wheel and wrote Vector and Matrix classes to refresh my C++ knowledge. To compile and run, just issue.
g++ -g -framework OpenGL -framework GLUT -o out main.cpp math.cpp
./out
In the first step, we project a 3d object onto a 2d screen. The vertices, faces, and cameras are in the file model.txt. You can read the instructions of this step for more details.
- Get the camera index as the arguement.
- Add makefile.