https://github.com/rischpierre/pathtracer

Experimental uni-directionnal path tracer based on USD
https://github.com/rischpierre/pathtracer

eigen path-tracing pathtracing raytracer usd

Last synced: 6 months ago
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Experimental uni-directionnal path tracer based on USD

• Host: GitHub
• URL: https://github.com/rischpierre/pathtracer
• Owner: rischpierre
• License: mit
• Created: 2022-06-27T13:44:30.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2024-11-21T17:39:38.000Z (over 1 year ago)
• Last Synced: 2025-03-27T05:41:54.293Z (over 1 year ago)
• Topics: eigen, path-tracing, pathtracing, raytracer, usd
• Language: C++
• Homepage:
• Size: 5.46 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# pathTracer

This is an experimental uni-directionnal path tracer based on USD.  

![Example render](examples/cornell.png)

## Features

- Diffuse shading

- Rect lights

- Smooth shading

- BVH acceleration

- Multi-threaded

- CPU based

- USD as scene data source 

## Usage

```shell

pathTracer 

```

```shell

pathTracer examples/cornell.usda

```

## Dependencies

- USD

- Eigen

- Png

## Sources

- USD cookbook: https://github.com/ColinKennedy/USD-Cookbook

- Path tracer using USD: https://github.com/JoshuaSenouf/tracer

- Path tracer topics: https://www.scratchapixel.com/

- Aera Light algorithm: http://raytracerchallenge.com/bonus/area-light.html

- Acceleration structure: https://jacco.ompf2.com/2022/04/13/how-to-build-a-bvh-part-1-basics/