I would like to use some Maths from three.js to compute some 3D calculations for regular web pages.

Since CSS3 allow 3D transformations, i need to calculate some local / global coordinates (Vector3 * Matrix4, Matrix4 inversion), as well as i need to perform some kind of vector comparison (Vector3.dot() for instance to determine if a transformed div is facing or not the camera (still talking about CSS, where there is no camera keyword, but instead a perspective property).

I was brave enough (or stupid enough ?) i could reinvent the wheel, and rewrite all of thoses long lines of 3D calculations.

But i like ThreeJS, i like open source collaboration, i like learning math from reading source code, so…

Is there a way of using a chunk of threejs ? The math objects (Vector, Matrix, Quaternion, Plane etc) without the whole project ?

Maybe i’m going the wrong way, since a chunk of three is only about saving some kilooctet from the web ! (instinctively i can’t approve to download and parse 500Ko of JS for some additions & multiplication).

Though, extracting math from threejs could be perceived as a learning, educational initiative.

Relative question :

How is threejs built from the source ?

To whom thoses lines are adressed ?

`import { Vector3 } from './Vector3';`

Bower ?