A modified version of the Mitsuba renderer customized for the Spatio-Temporal BRDFs project. We also released the source code of the synthesis in another repository.
The projects is implemented as a BSDF plugin that can be used like other BSDF plugins. You have to se the path to the time-varying material and time of the a frame to be rendered (time in [0-1]):
<bsdf type="tsvbrdf" id ="Material">
<string name="filepath" value="$material"/>
<float name="time" value="$time"/>
</bsdf>
To generate the whole sequence, you can use a python script:
data/scripts/tsvbrdf/tsvbrdf.py
There is a teapot with steel rusting. To render the scene you can run a bash script (from the same directory):
data/scenes/teapot/scene.sh
Note that you might need to adjust path and other in the script.
We use OpenCV for the data manipulation besides Mitsuba dependencies. Tested with Visual Studio 2015 (x64).
Mitsuba is licenced under GNU General Public License v3.0. Our code is released into the public domain.
If you use this code, please cite the paper:
@Article{Meister2021,
author = {Daniel Meister and Adam Posp\'{\i}\v{s}il and Imari Sato and Ji\v{r}\'{\i} Bittner},
title = {{Spatio-Temporal BRDF: Modeling and Synthesis}},
journal = {Computers and Graphics},
volume = {97},
pages = {279-291},
year = {2021},
}