soonspacejs/dist/generateBVH.worker.js

soonspacejs 2.x

import { BufferGeometry as m, BufferAttribute as u } from "three";
import { MeshBVH as c } from "three-mesh-bvh";
onmessage = function({ data: n }) {
  let i = performance.now();
  function p(e) {
    const o = performance.now();
    (o - i >= 10 || e === 1) && (postMessage({
      error: null,
      serialized: null,
      position: null,
      progress: e
    }), i = o);
  }
  try {
    if (!n) {
      postMessage(n);
      return;
    }
    const { index: e, position: o, options: r } = n, s = new m();
    if (s.setAttribute("position", new u(o, 3, !1)), e && s.setIndex(new u(e, 1, !1)), r.includedProgressCallback && (r.onProgress = p), r.groups) {
      const f = r.groups;
      for (const g in f) {
        const t = f[g];
        s.addGroup(t.start, t.count, t.materialIndex);
      }
    }
    const a = new c(s, r), l = c.serialize(a, { cloneBuffers: !1 });
    postMessage({
      error: null,
      serialized: l,
      position: o,
      progress: 1
    }, [o.buffer, ...l.roots]);
  } catch (e) {
    postMessage({
      error: e,
      serialized: null,
      position: null,
      progress: 1
    });
  }
};