@openhps/core/dist/cjs/three/nodes/procedural/Checker.js

Open Hybrid Positioning System - Core component

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.checker = void 0;
var _UV = require("../accessors/UV.js");
var _TSLBase = require("../tsl/TSLBase.js");
/**
 * Creates a 2x2 checkerboard pattern that can be used as procedural texture data.
 *
 * @tsl
 * @function
 * @param {Node<vec2>} coord - The uv coordinates.
 * @return {Node<float>} The result data.
 */
const checker = exports.checker = /*@__PURE__*/(0, _TSLBase.Fn)(([coord = (0, _UV.uv)()]) => {
  const uv = coord.mul(2.0);
  const cx = uv.x.floor();
  const cy = uv.y.floor();
  const result = cx.add(cy).mod(2.0);
  return result.sign();
});