Various 2D/3D applications, ray tracer

This demo above shows the rendering of bunch of 2D and 3D simulations I made at school. From simple curve editor to complicated cloth simulation.

Ray tracer:

Another school project I made was a 3D scene editor with ray tracer. User places and manipulates objects that can be either openGL primitives, meshes, or obj files in the scene, when satisfied, press the ray tracing button and wait, a rendered picture will show up in a separate window.
Here is an example:
Scene
Ray tracing rendering