OpenSource: Billiard Master
https://github.com/gorilla3dfmx/Billi...
Probably the worst billiard player ever in this video. But maybe you do better.
Check out the open source project. It's not fully implemented, but a good start for a complete billiard game.
The project showing the usage of Q3 Physics with sphere, box and mesh collision (table) and for game mechanics, like detecting when a ball fell into a hole or off the table.
Sound playback is depending on the intensity of collision for a more natural "clack" sound of colliding balls.