My first ray traced image features refraction with spheres and planes.
My second ray traced image also features refraction with spheres in a row with varying ior values and multiple lights.
My third ray traced image features many icosohedrons made out of triangles, which are all reflective in a scene with multiple lights.
I began with the Google Cardboard basic demo VR project in Unity, and added two bunny meshes with different materials and two dog meshes with different materials. I also added some interactivity where the right bunny turns off the lights when clicked and the left bunny turns on the lights when clicked. The majority of my time of this project was spent trying to understand, play around with, and work with Unity.