https://github.com/vikastmz/path_tracer
Monte Carlo Path Tracing written in C++
https://github.com/vikastmz/path_tracer
cornell-box monte-carlo pathtracing physically-based-rendering rendering
Last synced: about 2 months ago
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Monte Carlo Path Tracing written in C++
- Host: GitHub
- URL: https://github.com/vikastmz/path_tracer
- Owner: vikasTmz
- Created: 2020-06-01T23:53:01.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2022-10-31T04:37:32.000Z (over 2 years ago)
- Last Synced: 2025-01-26T18:33:54.738Z (4 months ago)
- Topics: cornell-box, monte-carlo, pathtracing, physically-based-rendering, rendering
- Size: 5.88 MB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Monte Carlo Path Tracing
Part of [Brown University CSCI2240](https://dritchie.github.io/csci2240/) assignment.
## Description
This project contains code to perform Monte Carlo Path Tracing written in C++ and was built on top of the Stencil code
provided to us by the instructors of CSCI2240.
## Requirements
```
Qt ( > 5.9.0)
Qt Creator ( > 4.5.0)
OpenMP
```
## Implementation
#### Four basic types of BRDFs ✔
**Diffuse [640 x 640] [2000 Samples]**
**Mirror [640 x 640] [2000 Samples]**
**Glossy [640 x 640] [3000 Samples]**
**Refraction [640 x 640] [1500 Samples]**
#### Soft Shadows and Indirect Illumination ✔
Soft Shadows and Colour Bleeding Caustics
#### Russian Roulette path termination ✔
#### Tone Mapping ✔
#### Event splitting ✔
## Extra Features
#### Attenuate refracted paths ✔
Reference : https://www.scratchapixel.com/lessons/3d-basic-rendering/global-illumination-path-tracing
#### Importance Sampling ✔
With importance sampling, the path tracer converges within 2000 samples per pixel, while the naive uniform sampling
technique still produces noise for the same samples per pixel.
Reference: https://www.tobias-franke.eu/log/2014/03/30/notes_on_importance_sampling.html
#### Depth of field ✔
## Other Scenes
## Usage
#### Build :
- Using Qt Creator.
- Using CLI:
```
cd Path_Tracer
mkdir build
cd build
qmake -makefile ../path-stencil.pro
make -j
```
#### Run :
- Using Qt Creator
Set the following arguments in Qt Creator.
```
#
../Path_Tracer_2240/example-scenes/CornellBox-Sphere.xml ./output.png 100 256 256
```
- Using CLI :
```./path-stencil ../Path_Tracer_2240/example-scenes/CornellBox-Sphere.xml ./output.png 100 256 256```