C++ Raytracer

Author: Diego Batres

This program renders 3D objects as .ppm images by specifying a driver file with the camera position, image frame, resolution, recursion level (reflections), light sources, and objects (models and spheres). Supports object smoothing, shadows, reflections, refraction (spheres), multiple materials, and transformations.

Instructions:

0. Prerequisites:

   • Clone this repository.
   • Install the Eigen C++ library in the same folder.
   • Move mtl, obj, and driver files to main folder.

1. Compiling the program:

   • make: build executable
   • make clean: remove object files

2. Running the program:

   • Usage: ./raytracer [driver file] [output file]
   • Example: ./raytracer driver00.txt driver00.ppm

Example images:

Files:

1. Driver Files:

   • driver00.txt: 6 spheres (2048x2048)
   • driver01.txt: 4 spheres, board.obj (2048x2048)
   • driver02.txt: 23 spheres, 2 x cat.obj, 2 x checker.obj, 11 x board.obj (2048x2048)
   • driver03.txt: 8 spheres, cat.obj, wolf.obj, icosphere.obj (2048x2048)
   • driver04.txt: deer.obj, 3 x icosphere.obj (2048x2048)

2. Input Files:

   • *.obj: object files
   • *.mtl: material files

3. Source Files:

   • Light.*: light object
   • Makefile: makefile
   • Model.*: model object
   • Material.*: material object
   • raytracer.*: rendering, main method
   • Sphere.*: sphere object
   • Ray.*: ray object
   • transform.*: transform functions