prise-3d / pbrt-v3

Source code for pbrt, the renderer described in the third edition of "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys.

PrISE-3D - pbrt, Version 3

This repository holds the source code to the version of pbrt for the PrISE-3D ANR project. PBRT is described in the third edition of Physically Based Rendering: From Theory to Implementation, by Matt Pharr, Wenzel Jakob, and Greg Humphreys. As before, the code is available under the BSD license.

The pbrt website has general information about both the Physically Based Rendering book as well as many other resources for pbrt. As of October 2018, the full text of the book is now available online, for free.

Please refer to the pbrt-v3 github repository for further information about pbrt.

Clone the project

To check out pbrt together with all dependencies, be sure to use the --recursive flag when cloning the repository, i.e.

$ git clone --recursive https://github.com/mmp/pbrt-v3/

If you accidentally already cloned pbrt without this flag (or to update an pbrt source tree after a new submodule has been added, run the following command to also fetch the dependencies:

$ git submodule update --init --recursive

Makefile builds (Linux, other Unixes, and Mac)

mkdir build
cd build
cmake ..
make -j

Updates

Running pbrt

Possibility to generate few images in one run with different random seed. Hence, scene is loading only once time.

cd build
./pbrt --images 10 --samples 100 --folder output ../path/to/file.pbrt

Parameters:

• --samples: number of samples per pixel per image
• --images: number of images with n samples expected as output
• --folder: specific output folder (by default temp)
• --startindex: specific image index to start with (if necessary to relaunch pbrt) and to not erase previously generated image
• --independent: boolean which specifies if each generated image are independent or image convergence is used (samples merge at each new image generated)
• --digit: number of digits used when saving image index (if 5, index in filename is equal to 00001)
• --normals: boolean which specifies if normals map is saved after generating first image
• --zbuffer: boolean which specifies if Z-Buffer is saved after generating first image
• --nn_model: neural network model python script path if use of adaptive sampling.

Output information:

• Images are saved into {folder}/{image_name} folder with the following name convention {image_name}-S{samples}-{imageIndex}.{ext}
• Normals Images are saved into {folder}/{image_name} folder with the following name convention {image_name}-S{samples}-normals.rawls
• Z-Buffer Images are saved into {folder}/{image_name} folder with the following name convention {image_name}-S{samples}-zbuffer.rawls

Information

All updates made into this version are encapsulated by these comments:

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// PrISE-3D Updates //
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...
...

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// END PrISE-3D Updates //
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