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pretty_name: Voxel Video Compression Test Suite
tags:
- 3d
- voxel
- nanovdb
- volumetric-video
- compression
- benchmark
viewer: false
---
# Voxel Video Compression Test Suite
Ten voxel video sequences at several resolutions, for measuring volumetric video codecs. Every frame is a NanoVDB file.
The suite mixes animated content with synthetic edge cases, so a codec can be checked both for typical compression ratio and for its behavior on degenerate input.
## Sequences
| Sequence | Frames | Resolutions |
|---|---|---|
| `BirdOrange` | 128 (122 at 512) | 128, 256, 512 |
| `Breakdance1990` | 106 | 128, 256, 512 |
| `Chapa-Giratoria` | 91 | 128, 256, 512 |
| `Jumping` | 36 | 128, 256, 512 |
| `Rumba Dancing` | 72 | 128, 256, 512 |
| `car` | 73 | 64, 128, 256, 512 |
| `centered_static_cube` | 30 | 64, 128, 256, 512 |
| `empty` | 30 | 64, 128, 256, 512 |
| `filled` | 30 | 64, 128, 256, 512 |
| `random_noise` | 30 | 64, 128 |
The last four are synthetic stress cases, named for what they contain.
## Layout
```
<sequence>/<resolution>/frame_00000.nvdb
<sequence>/<resolution>_nvdb/frame_00000.nvdb # BirdOrange, Breakdance1990, Chapa-Giratoria, Jumping, Rumba Dancing
```
Frames are numbered from `frame_00000` in playback order.
## Loading
```python
from spatialstudio import splv
frame = splv.Frame.load_from_nvdb(
"car/128/frame_00000.nvdb", (0, 0, 0), (127, 127, 127)
)
print(frame.get_num_voxels())
```
To encode a sequence with True3D's `.splv` codec, pass the frames to `splv.Encoder` from [`spatialstudio`](https://pypi.org/project/spatialstudio/).
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