@needle-tools/materialx/src/utils.js

Web runtime support to load and display MaterialX materials in Needle Engine and three.js via the MaterialX WebAssembly library. glTF files containing the `NEEDLE_materials_mtlx` extension can be loaded with this package. There is also experimental suppor

// import { BufferGeometry } from 'three';
// import * as BufferGeometryUtils from 'three/examples/jsm/utils/BufferGeometryUtils.js';

/**
 * Get URL parameter value
 * @param {string} name - Parameter name
 * @returns {boolean|string} Parameter value or false if not found
 */
export function getParam(name) {
    const urlParams = new URLSearchParams(window.location.search);
    const param = urlParams.get(name);
    if (param == null || param === "0" || param === "false") return false;
    if (param === "") return true;
    return param;
}

export const debug = getParam("debugmaterialx");
export const debugUpdate = debug === "update";

let time = 0;
/**
 * Get current time in seconds
 * @returns {number} Current time
 */
export function getTime() {
    return time;
}

let frame = 0;
/**
 * Get current frame number
 * @returns {number} Current frame
 */
export function getFrame() {
    return frame;
}

const performance = window.performance || /** @type {any} */ (window).webkitPerformance || /** @type {any} */ (window).mozPerformance;

function updateTime() {
    time = performance.now() / 1000; // Convert to seconds
    frame++;
    window.requestAnimationFrame(updateTime);
}

window.requestAnimationFrame(updateTime);




export async function waitForNetworkIdle() {
    if (typeof requestIdleCallback !== "undefined") {
        return new Promise(res => requestIdleCallback(res));
    }
    else {
        console.debug("[MaterialX] Can not wait for network idle, using fallback");
        return new Promise(res => setTimeout(res, 100)); // Fallback to a short delay
    }
}