# Player models — credits and licence

The files in this folder (`player-a.glb`, `player-a-lite.glb`, `player-b.glb`, `player-b-lite.glb`) are
built by `scripts/players/build-players.mjs` from:

| Source | Author | Licence | Used for |
|---|---|---|---|
| Universal Base Characters [Standard] — `Superhero_Male_FullBody`, `Superhero_Female_FullBody`, hairstyles | Quaternius (quaternius.com) | CC0 1.0 | Bodies, rig, hair |
| Universal Animation Library [Standard] — `Idle_Loop`, `Sword_Idle`, `Jog_Fwd_Loop` | Quaternius | CC0 1.0 | idle, ready, serve_prepare, run |
| Tennis-MoCap — takes `jarua_Servicio`, `jgacosta_Servicio`, `jarua_Derecha_18seg`, `jduribe_Derecha`, `jgacosta_Derecha`, `jgacosta_Reves`, `jarua_Reves` | J. D. Pulgarin-Giraldo, S. Garcia-Vega, L. G. Melo-Betancourt, S. Ramos-Bermudez, A. M. Alvarez-Meza, G. Castellanos — https://github.com/jdpulgarin/Tennis-MoCap | CC BY-SA 3.0 Unported | serve, forehand, backhand |

Citation requested by the dataset authors: Pulgarin-Giraldo J.D., Alvarez-Meza A.M., Melo-Betancourt L.G.,
Ramos-Bermudez S., Castellanos-Dominguez G. *A Similarity Indicator for Differentiating Kinematic Performance
Between Qualified Tennis Players.* LNCS 10125, pp. 309-317, 2017. https://doi.org/10.1007/978-3-319-52277-7_38

## Changes made

Motion-capture takes were cleaned (single-frame marker glitches interpolated), cut to one repetition around the
detected racket–ball impact, rotated so the stroke is hit toward the model's front, retargeted by segment
direction onto the Quaternius rig, resampled at 50 fps, and combined with the Quaternius locomotion clips.
A tennis kit was painted into the body textures, hair was attached, and a racket with `RacketSocket` /
`TossHand` sockets was added.

## Licence of these files

Because they contain an adaptation of Tennis-MoCap, **these GLB files are distributed under
[CC BY-SA 3.0 Unported](https://creativecommons.org/licenses/by-sa/3.0/)** (the Quaternius parts are CC0 and
impose no conditions). Anyone may copy and adapt them, including commercially, provided they give the
attribution above and share their adaptations under the same licence. This licence applies to these asset
files only — not to the rest of the website (code, texts, photos, design), which is merely presented together
with them.