mylingo3d/lib/display/core/PhysicsObjectManager/bvh/ExtensionUtilities.js

Lingo3D is a React/Vue 3d game development framework that ships with a complete visual editor

import { Mesh } from "three";
const origMeshRaycastFunc = Mesh.prototype.raycast;
function convertRaycastIntersect(hit, object, raycaster) {
    if (hit === null) {
        return null;
    }
    hit.distance = hit.point.distanceTo(raycaster.ray.origin);
    hit.object = object;
    if (hit.distance < raycaster.near || hit.distance > raycaster.far) {
        return null;
    }
    else {
        return hit;
    }
}
export function acceleratedRaycast(raycaster, intersects) {
    if (this.geometry.boundsTree) {
        if (this.material === undefined)
            return;
        const bvh = this.geometry.boundsTree;
        if (raycaster.firstHitOnly === true) {
            const hit = convertRaycastIntersect(bvh.raycastFirst(raycaster.ray, this.material), this, raycaster);
            if (hit) {
                intersects.push(hit);
            }
        }
        else {
            const hits = bvh.raycast(ray, this.material);
            for (let i = 0, l = hits.length; i < l; i++) {
                const hit = convertRaycastIntersect(hits[i], this, raycaster);
                if (hit) {
                    intersects.push(hit);
                }
            }
        }
    }
    else {
        origMeshRaycastFunc.call(this, raycaster, intersects);
    }
}
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