| ACL Plugin v2.1.0 | ACL Plugin v2.0.0 | UE v5.2.0 | |
|---|---|---|---|
| Compressed size | 8.06 MB | 8.18 MB | 23.68 MB |
| Compression ratio | 7.74 :1 | 7.62 : 1 | 2.63 : 1 |
| Compression time | 9.08s | 4.80s | 1m 35.19s |
| Compression speed | 7036.24 KB/sec | 13295.33 KB/sec | 671.02 KB/sec |
| Max ACL error | 0.1215 cm | 0.0635 cm | 0.1186 cm |
| Max UE error | 0.0480 cm | 0.0684 cm | 0.0562 cm |
| ACL Error 99th percentile | 0.0245 cm | 0.0201 cm | 0.0231 cm |
| Samples below ACL error threshold | 94.99 % | 97.83 % | 90.49 % |
ACL was smaller for 4 clip (80 %)
ACL was more accurate for 4 clips (80 %)
ACL has faster compression for 5 clips (100 %)
ACL was smaller, better, and faster for 3 clip (60 %)
Would the ACL Plugin have been included in the Automatic Compression permutations tried, it would have won for 5 clips (100 %)
Note: Numbers for ACL 2.0 were extracted with UE 4.25.
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
To measure and extract the compression statistics, the provided commandlet is used along with a python script to parse the results.
The ACL Plugin uses the default settings with an error threshold of 0.01cm while UE uses the Automatic Compression with an error threshold (master tolerance) of 0.1 cm. Both error thresholds used are suitable for production use. The 99th percentile and the number of samples below the ACL error threshold are calculated by measuring the error with ACL on every bone at every sample.
ACL and UE both use separate methods to measure the error and both values are shown for transparency.