| v2.0.0 | v1.3.0 | v1.2.0 | |
|---|---|---|---|
| Compressed size | 8.18 MB | 8.18 MB | 8.77 MB |
| Compression ratio | 7.62 : 1 | 7.63 : 1 | 7.11 : 1 |
| Compression time | 3.86s | 4.89s | 20.27s |
| Compression speed | 16534.75 KB/sec | 13074.59 KB/sec | 3150.43 KB/sec |
| Max error | 0.0635 cm | 0.0634 cm | 0.0591 cm |
| Error 99th percentile | 0.0201 cm | 0.0201 cm | 0.0382 cm |
| Samples below error threshold | 97.91 % | 97.90 % | 94.61 % |
Note: Starting with v1.3.0 measurements have been made with a Ryzen 2950X CPU while prior versions used an Intel i7 6850K.
To compile these statistics, the Matinee fight scene is used.
- Number of clips: 5
- Sample rate: 30 FPS
- Cinematic duration: 66 seconds
- Troopers 1-4 have 71 bones and the Main Trooper has 551 bones
- Raw size: 62.38 MB (10x float32 * num bones * num samples)
ACL supports various compression methods but only the overall best variant will be tracked here (see get_default_compression_settings() for details).
The error is measured 3cm away from each bone to simulate the visual mesh skinning process as described here with the default error threshold of 0.01cm. The 99th percentile and the number of samples below the error threshold are calculated by measuring the error on every bone at every sample.
The performance of ACL in Unreal Engine 4 is tracked by the plugin here.