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license: mit
language:
- en
pretty_name: BounceBRDF
size_categories:
- n<1K
viewer: false
---
# BounceBRDF Demo Dataset
Demo dataset for the paper **"High-Gloss SVBRDF Capture Using Bounce Light"** (Eurographics 2026 / *Computer Graphics Forum*, Vol. 45, No. 2).
**Authors:** [Tomáš Iser](https://tomasiser.com), [Andrei-Timotei Ardelean](https://reality.tf.fau.de/staff/t.ardelean.html), [Tim Weyrich](https://reality.tf.fau.de/weyrich.html) — Friedrich-Alexander-Universität Erlangen-Nürnberg & Charles University
📄 [Project page & paper](https://reality.tf.fau.de/publications/2026/iser2026highgloss/iser2026highgloss.html) · 💻 [GitHub Source Code (BounceBRDF)](https://github.com/fau-vce/BounceBRDF)
## Contents
Four captured scenes (`arch1`, `re2`, `vr1`, `vr3`), each containing:
```
<scene>/
├── IMG_XXXX.exr # RAW input photos (with mirror sphere) in EXR format
├── IMG_XXXX.envmap.exr # Extracted environment map for each photo (using extract_envmap.py)
└── results/ # Results obtained from a subset of 9 input photos & 1000 iterations
├── basecolor.png # Base color texture
├── roughness.png # Roughness texture
├── metallic.png # Metallic texture
└── normal.png # Normal map
```
The input photos and environment maps are in an [EXR](https://openexr.com/) (.exr) image format, which is an open standard for storing camera captures with high dynamic range.
The EXR images were exported from the camera RAW files using [darktable](https://www.darktable.org/).
The environment maps were extracted from the mirror sphere using our `extract_envmap.py` script.
The four `results/` textures are the SVBRDF output of our `fit.py` script.
See the [source code on GitHub](https://github.com/fau-vce/BounceBRDF).
## Usage
To reproduce the results or run the pipeline on your own data, see our [BounceBRDF repository](https://github.com/fau-vce/BounceBRDF). The extracted environment maps are already provided, so you can skip the `extract_envmap` step and run `fit` directly:
```bash
python -m bouncebrdf.fit '<scene>/*.exr'
```
## Citation
```bibtex
@article{iser2026highgloss,
author = {Iser, Tom\'{a}\v{s} and Ardelean, Andrei-Timotei and Weyrich, Tim},
title = {High-Gloss {SVBRDF} Capture Using Bounce Light},
journal = {Computer Graphics Forum (Proc. Eurographics)},
volume = {45},
number = {2},
year = {2026},
month = may,
publisher = {Eurographics Association},
authorurl = {https://reality.tf.fau.de/pub/iser2026highgloss.html},
}
``` |