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lajolla Path Tracer

Disney BSDF Volume PT

This is the implementation of UCSD CSE 272 course project. It's an advanced path tracer with 2 key features: Disney Principled BSDF and volumetric path tracing.

Other more basic pathtracer features like axis-aligned bounding boxes (AABB), texture mapping, effective sampling, multiple-importance sampling (MIS), next-event estimation (NEE) are implemented in another project: Torrey. Those features are provided as starter code by our instructur Tzu-Mao Li in lajolla. FYI: La Jolla and Torrey Pines are the 2 neighborhoods that sandwich UCSD

Build & Run

Filled in .obj files:

I git-ignored those mesh definition files in my repo, so please head to the starter code and swap in the scenes folder.

This portion is copied from the original README:

All the dependencies are included. Use CMake to build. If you are on Unix systems, try

mkdir build
cd build
cmake ..
cmake --build .

It requires compilers that support C++17 (gcc version >= 8, clang version >= 7, Apple Clang version >= 11.0, MSVC version >= 19.14).

Apple M1 users: you might need to build Embree from scratch since the prebuilt MacOS binary provided is built for x86 machines. (But try build command above first.)

For Windows users, I personally find using Visual Studio easier:

For Visual Studio 2017 or later, you can directly "Open a local folder" on the clone repo and Visual Studio will configure the rest for you.

If you prefer the OG style that opens a project/solution, you can use CMake-gui to generate a solution definition for you.

  1. make sure you have installed CMake and open CMake (cmake-gui)
  2. Where is the source code: PATH-TO-ROOT
  3. Where to build the binaries: PATH_TO_ROOT/build
  4. Configure, Generate, Open Project, Bingo!

To run:

Make sure you are at the project root and

PATH_TO_EXE/lajolla scenes/cbox/cbox.xml

Disney Principled BSDF

Relevant scene definitions are located in scenes/disney_bsdf_test;

For the underlying theories and implementation details, see HW1 handout and my code.

Volumetric Path Tracing

Relevant scene definitions are located in scenes/volpath_test;

For the underlying theories and implementation details, see HW2 handout and my code.