Path tracer with photon mapping in C++

Description

---

Over the course of Physics-Based Rendering (15468) at CMU, I worked on the course assignment deliverables of creating a path tracing renderer given a starting cpp library of basic math/filesystem functionality. The project was verified on a number of example scenes provided in each homework, including but not limited to cornell box scenes and scenes modeled after Erich Veach's prior work. In my final project, I added volumetric photon mapping.

Features include:

• Cameras
  • Ideal pinhole
  • Thin lens model
• Materials (BSDFs)
  • Lambertian
  • Phong, Blinn-Phong
  • Dielectric
  • Oren-Nayar
  • Beckmann
• Integrators
  • Direct Illumination
  • Path tracer using Multiple Important Sampling (MIS). Uses BRDF sampling and next event estimation + light source sampling
  • Volumetric path tracer using MIS
    • free-flight path sampling:
      • uniform
      • delta tracking
      • ratio tracking
• Samplers
  • Uniform
  • Stratified
  • Quasi-Monte Carlo
• Participating media
  • Phase Functions
    • Henyey-Greenstein
• Textures
  • Checkerboard
  • Perlin noise
  • Custom images
  • Environment mapping
• Other
  • Photon mapping (can be toggled on/off in respect to each integrator)

To abide by CMU's (and Dartmouth's) academic integrity policy, I do not have the code implementation for this project available.