| Compressed Size | Compression Rate | |
|---|---|---|
| UE Compressed Rich Curves 0.0 | 3620.66 KB | 1.0x (baseline) |
| UE Compressed Rich Curves 0.001 | 1458.77 KB | 2.5x smaller |
| UE Uniform Sampling | 2052.82 KB | 1.8x smaller |
| ACL 0.001 | 540.24 KB | 6.7x smaller |
| ACL with morph 0.01 cm | 381.10 KB | 9.5x smaller |
ACL Plugin v1.0 and UE 4.25 were used to gather these statistics.
To compile these statistics, the GDC 2015 demo from Epic A Boy and His Kite is used.
- Number of clips: 31
- Number of animated curves: 811
- Number of morph target curves: 692
To measure and extract the compression statistics, UE was manually instrumented to print out the compressed size of the curve data.
The ACL Plugin uses the default settings with a morph target precision of 0.01cm and a curve precision of 0.001. Both values are suitable for production use. Numbers above are shown with and without the morph target precision enabled.
The UE Compressed Rich Curve uses an error threshold of 0.0 or 0.001.
The UE Uniform Sampling uses default values.