@woosh/meep-engine/src/engine/graphics/geometry/aabb3_to_buffer_geometry.js

Pure JavaScript game engine. Fully featured and production ready.

import { BufferAttribute, BufferGeometry } from "three";

/**
 *
 * @param {AABB3} aabb
 * @returns {THREE.BufferGeometry}
 */
function aabb3_to_buffer_geometry(aabb) {
    const bounds_geometry = new BufferGeometry();

    const vertices_array = new Float32Array(24);

    aabb.getCorners(vertices_array);

    const vertices_attribute = new BufferAttribute(vertices_array, 3, false);

    bounds_geometry.setAttribute('position', vertices_attribute);

    const indices_array = new Uint8Array([
        0, 1, 5, 5, 4, 0, // bottom
        2, 3, 7, 7, 6, 2 //top
    ]);


    const indices_attribute = new BufferAttribute(indices_array, 1, false);

    bounds_geometry.setIndex(indices_attribute);

    return bounds_geometry;
}