@polygonjs/plugin-mapbox/dist/src/core/mapbox/MapboxRaycaster.js

Mapbox plugin for the 3D engine https://polygonjs.com

import { Raycaster, Vector3, Matrix4 } from "three";
export class MapboxRaycaster extends Raycaster {
  constructor() {
    super(...arguments);
    this.firstHitOnly = true;
    this._inverse_proj_mat = new Matrix4();
    this._cam_pos = new Vector3();
    this._mouse_pos = new Vector3();
    this._view_dir = new Vector3();
  }
  setFromCamera(mouse, camera) {
    this._inverse_proj_mat.copy(camera.projectionMatrix);
    this._inverse_proj_mat.invert();
    this._cam_pos.set(0, 0, 0);
    this._cam_pos.applyMatrix4(this._inverse_proj_mat);
    this._mouse_pos.set(mouse.x, mouse.y, 1);
    this._mouse_pos.applyMatrix4(this._inverse_proj_mat);
    this._view_dir.copy(this._mouse_pos).sub(this._cam_pos).normalize();
    this.set(this._cam_pos, this._view_dir);
  }
}