A implementation of a ray tracing for my college
To manipulate spheres just modify the sdl file, on the object field g = -x0 h = -y0 j = -z0 R^2 = x0² + y0² + z0² - k
sphere: (x-x0)² + (y-y0)² + (z-z0)² = R²
To run, just compile the main.cpp (g++ main.cpp -o out -std=c++11 && ./out)