Raytracer

Description of Raytracer

This is a raytracer written in C++ intended to be used for creating realistic images. Image output is defaulted to output.png.

Implementation features include:

• Blinn-Phong BRDF
• Refractions and reflections
• Super Sampling
• Object transformations
• Bounding Volume Hierarchy
• Monte Carlo global illumination
• Depth of Field
• Animation (Python Script)

Usage

Building Raytracer

• Install GLM
• Clone project
• Run the following commands:

   mkdir build
   cd build
   cmake ..
   make
  

Running Raytracer

Command line arguments:

• render <input_file.pov> <width> <height> [-flags] - render the actual image to output.png

• sceneinfo <input_file.pov> - gives various info from the scene

• -fresnel - for fresnel affect

• -beers - for beers law

• -sds - for adding spacial data structure

• -gi [-gi_samples=N] - for adding global illumination with optional sample size (default 2)

• -focal [-focallength=N] [-aperture=N] [-output=something.png] [-camera=N] - depth of field has the option for different focal lengths, aperture sizes, output files, and camera positions

• -ss=N - super sampling with optional samples

Example Images

• Monte Carlo Global Illumination

• Depth of field