Simple Shapes

I have set up a basic set of shapes and corresponding intersection methods.

With the limitations I encountered, here is my simple Shape struct:

struct Shape {
  bool geometry;
  vec3 pos;
  float radius;
  vec3 color;
};

I'm planning to go with this for now and move onto photon casting and scattering. When I do have time to come back, I am planning to implement a few basic matrix transformation functions and use a transformation matrix for the shapes and for ray tracing (transforming in and out of object coordinates.)

Everything seems to be working okay. Here's a screen capture: