[guigui]

Thanks. The WebGL rendering is based on Three.js. We're using Rapier for the physics simulation, and Howler for the audio. Our game engine is responsible for all the controls and updating things like the camera position (which follows the position of the ball at every frame).

[doctorpangloss]

Why did you choose to do things this way instead of using Unity WebGL?

It's okay if the reason is, "because we make websites and the programming we know is Javascript" or whatever. It doesn't have to be about some objective comparison, like optimization or whatever, which isn't going to be true or necessarily matter anyway.

[franck]

Unity WebGL is not supported on mobile and we needed the experience to be playable on both desktop and mobile browsers.

However, mobile browsers will be supported with Unity 6 web exports, still experimental currently AFAIK, but that should become a viable option soon.

[Wowfunhappy]

I don't know if it's just my system or the particular games I've been playing, but Unity WebGL stuff always seems to take a long time to load. TFA loads seemingly instantly.