https://github.com/jonfryd/photontracer

Experimental Global Illumination Renderer
https://github.com/jonfryd/photontracer

computer-graphics global-illumination irradiance photon-mapping raytracer

Last synced: 22 days ago
JSON representation

Experimental Global Illumination Renderer

• Host: GitHub
• URL: https://github.com/jonfryd/photontracer
• Owner: jonfryd
• License: mit
• Created: 2019-08-18T18:36:47.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2022-01-07T09:54:19.000Z (almost 3 years ago)
• Last Synced: 2024-10-24T17:49:45.994Z (2 months ago)
• Topics: computer-graphics, global-illumination, irradiance, photon-mapping, raytracer
• Language: C#
• Homepage:
• Size: 358 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

# PhotonTracer: Experimental Global Illumination Renderer

This is a hobby project in C# that I worked on between 2006 and 2009 derived on Java code I did back in my university days.

It's basically a classic photon mapping implementation and global illumination renderer done pretty much as

described in [Henrik Wann Jensen's book](https://www.amazon.com/Realistic-Synthesis-Mapping-Revised-Paperback/dp/B011DC2J3O). The renderer runs in 3 stages:

1. Photon emission

2. Rendering an approximate solution

3. Rendering the final, accurate solution

The implementation does support multiple cores and produces nicely anti-aliased images like the one below. Stuff like texture mapping,

bump mapping, and caustics rendering are supported, as well. There's also a half-baked attempt to do irradiance caching which was never

completed. Debugging all the edge cases right turned out to be really challenging and I turned my attention to other projects.

There's no scene input file format or anything fancy like that. Changing the scene requires changing the code.

A final rendering of the classic Cornell box:



A window shows the absorbed photon locations:



# Building

Clone the repository and execute Maven from the root directory:

    $ git clone https://github.com/jonfryd/PhotonTracer

    $ cd PhotonTracer/

    $ ./build.sh

This is for Linux or Mac OS X. For Windows run .bat-file:

    $ build.bat

# Usage

After building, run ```Photontracer.exe``` on Mac OS X using Mono (64-bit is not yet supported):

    $ mono32 Photontracer.exe

In Linux using Mono:

    $ mono Photontracer.exe

Windows users are able to run the .exe directly, of course.

After the program finishes all its number crunching, a JPEG image called ```photontraced.jpg``` is produced.

Cheers!

# Author

This application created by Jon Frydensbjerg - email: [email protected]