I created a 3D animation of a "celestial" watch using a combination of ray tracing, triangle meshes, and 3D rotation matrices. The inspiration for it comes from this watch (https://www.thewatchpages.com/watches/van-cleef-arpels-midnight-planetarium-watch-vcaro4j000/).
The code for my final project for Computer Graphics (CSCI 371) is in final_project.cpp. It needs the cow.cpp and snail.cpp to run. cow.cpp wraps GLFW (a library for OpenGL) and snail.cpp is a small linear algebra library. Both were created by Jim Bern who taught CSCI 371.
Here is are some screenshots of the project:
I was able to get shadows to appear on the bezel of the watch, but the animation ran at around 3 fps on my laptop due to the large amount of ray tracing required to do so. Becuase of this, I removed the code for this feature.