• A raytracer written in C++, featuring:
  • Blinn-phong shading
  • Reflection
  • Soft shadowing
  • Smooth normals
  • Acceleration structure: BVH Tree
• Coming up: refraction

• OpenEXR:
  • raytra outputs EXR images by default
  • For Mac OS X, OpenEXR can be installed via Homwbrew by running

  brew install openexr
  

  • For other systems, please refer to http:https://www.openexr.com/ for more information

make
./raytra scene-files/bunny.scn bunny.exr 3 1
open bunny.exr # `bunny.exr` is the output of the renderer

Here's the output:

The general usage of raytra is:

./raytra <scene-filename> <output-filename> <camera-sample-count> <shadow-sample-count>

• <camera-sample-count> is the number of primary rays from the camera
• <shadow-sample-count> is the number of shadow rays per pixel
• For better performance, build raytra by make release, which does not contain the debug flag (-g) and has -O3 optimization flag enabled.