@polygonjs/polygonjs/dist/src/core/geometry/bvh/ThreeMeshBVHHelper.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
import { MeshBVH, acceleratedRaycast, CENTER } from "./three-mesh-bvh";
export class ThreeMeshBVHHelper {
  static assignBVH(mesh, bvh) {
    mesh.raycast = acceleratedRaycast;
    mesh.geometry.boundsTree = bvh;
  }
  static assignDefaultBVHIfNone(mesh) {
    let bvh = mesh.geometry.boundsTree || this.defaultBVH(mesh);
    this.assignBVH(mesh, bvh);
  }
  static createBVH(mesh, options) {
    return new MeshBVH(mesh.geometry, options);
  }
  static defaultBVH(mesh) {
    return this.createBVH(mesh, { strategy: CENTER, maxLeafTris: 10, maxDepth: 40, verbose: false });
  }
  static copyBVH(meshDest, meshSrc) {
    const existingBVH = meshSrc.geometry.boundsTree;
    if (existingBVH) {
      meshDest.raycast = acceleratedRaycast;
      this.assignBVH(meshDest, existingBVH);
    }
  }
  static updateRaycaster(raycaster) {
    raycaster.firstHitOnly = true;
  }
}