Non-Photorealisitic Ray tracer

Basic ray tracer for rendering spheres and triangles. (With reflections)

Additional Features: Cel-shading and Edge-Silhouetting

Final project for Computer Graphics at MSState

By Dalton R. Pruitt

Driven by main.py, where many of the different parameters are determined, such as image size and turning on/off cel-shading and edge silhouettes. (Sorry, no GUI yet.)

Current Issues:

- Reflections of triangles do not work correctly (invisible from backside or something) when the Bounding Box acceleration strucutre is used; assumed that this is due to some box intersection issues. 
- Current coordinate system has the +z direction facing away from the camera, not the conventional "towards the camera"; this is causes issues with the usual way that we define the normals of triangles (and models, if stored in the model)
- The lighting has only been tested for a single PointLight; neither multiple lights nor other types of lights (Directional or Spotlight) have been tested/implemented (multiple point lights can be used easily, I just never made more than one)

All extraneous imports used:

-PIL
-numpy
-datetime
-time
-transformations
-os
-math
-copy
-random
-Numbers
-builtins