bwzhao/RayTracer

Path Tracer with multi sampling technics

Overview

How to run

1. Clone and build

git clone git@github.com:bwzhao/RayTracer.git
git submodule update --init --recursive
mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
make -j8

2. Running

Right now there are two examples:

1. Forward path tracing for a Cornell Box.
2. Bidirectional path tracing for a Cornell Box with reversed directions of light.

Features:

• Lighting:

  • area light
  • point light
  • multi light source

• Integrator:

  • path tracing
  • bidirectional path tracing
  • metropolis light transport

• Primitives:

  • triangle
  • mesh triangle
  • circle
  • rectangles
  • sphere

• Texture type:

  • pure color
  • image
  • noise

• Material type:

  • Lambertian
  • metal
  • dielectric
  • constant medium

• Obj loader

• BVH structure

Appendix

• References:

  • Peter Shirley's famous trilogy of Ray tracing: https://raytracing.github.io
  • The PBR book: https://pbr-book.org/3ed-2018/contents
  • Advanced Global Illumination 2nd Edition

• Submodule needed:

  • tinyobjloader: https://github.com/tinyobjloader/tinyobjloader.git