@realsee/dnalogel/libs/Sculpt/utils/three/rayOnLine.js

如视 VR 看房插件合集

import * as t from "three";
function u(r, l, n, P = !0) {
  const s = new t.Plane().setFromNormalAndCoplanarPoint(l.direction.clone().normalize(), r), e = s.projectPoint(n.start, new t.Vector3()), i = s.projectPoint(n.end, new t.Vector3()), o = new t.Line3(e, i), c = o.closestPointToPoint(r, P, new t.Vector3()), d = c.distanceTo(i), p = c.distanceTo(e), T = o.distance();
  if (d > p && d > T) {
    const a = -c.distanceTo(e) / o.distance(), m = n.start.clone().sub(n.end).normalize();
    return n.start.sub(m.clone().multiplyScalar(a * n.distance()));
  } else {
    const a = c.distanceTo(e) / o.distance();
    return new t.Vector3().lerpVectors(n.start, n.end, a);
  }
}
export {
  u as rayOnLine
};