webgl_materials_physical_clearcoat

对应 three.js 示例地址。

仅需关注 init 函数的内容，其他部分都是示例小程序所使用的描述配置。

example.jstypings.d.ts

import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import { HDRCubeTextureLoader } from "three/examples/jsm/loaders/HDRCubeTextureLoader.js";
import { FlakesTexture } from "three/examples/jsm/textures/FlakesTexture.js";

/** @type {import("@minisheeep/mp-three-examples").OfficialExampleInfo} */
const exampleInfo = {
  name: "webgl_materials_physical_clearcoat",
  useLoaders: [HDRCubeTextureLoader],
  info: [
    [
      {
        tag: "a",
        link: "https://threejs.org",
        content: "three.js"
      },
      {
        tag: "text",
        content: "webgl - materials - clearcoat"
      }
    ]
  ],
  init: ({ window, canvas, GUI, Stats, needToDispose, useFrame }) => {
    let stats;
    let camera, scene, renderer;
    let particleLight;
    let group;
    init();
    function init() {
      camera = new THREE.PerspectiveCamera(27, window.innerWidth / window.innerHeight, 0.25, 50);
      camera.position.z = 10;
      scene = new THREE.Scene();
      group = new THREE.Group();
      scene.add(group);
      new HDRCubeTextureLoader().setPath("textures/cube/pisaHDR/").load(["px.hdr", "nx.hdr", "py.hdr", "ny.hdr", "pz.hdr", "nz.hdr"], function(texture) {
        const geometry = new THREE.SphereGeometry(0.8, 64, 32);
        const textureLoader = new THREE.TextureLoader();
        const diffuse = textureLoader.load("textures/carbon/Carbon.png");
        diffuse.colorSpace = THREE.SRGBColorSpace;
        diffuse.wrapS = THREE.RepeatWrapping;
        diffuse.wrapT = THREE.RepeatWrapping;
        diffuse.repeat.x = 10;
        diffuse.repeat.y = 10;
        const normalMap = textureLoader.load("textures/carbon/Carbon_Normal.png");
        normalMap.wrapS = THREE.RepeatWrapping;
        normalMap.wrapT = THREE.RepeatWrapping;
        normalMap.repeat.x = 10;
        normalMap.repeat.y = 10;
        const normalMap2 = textureLoader.load("textures/water/Water_1_M_Normal.jpg");
        const normalMap3 = new THREE.CanvasTexture(new FlakesTexture());
        normalMap3.wrapS = THREE.RepeatWrapping;
        normalMap3.wrapT = THREE.RepeatWrapping;
        normalMap3.repeat.x = 10;
        normalMap3.repeat.y = 6;
        normalMap3.anisotropy = 16;
        const normalMap4 = textureLoader.load("textures/golfball.jpg");
        const clearcoatNormalMap = textureLoader.load(
          "textures/pbr/Scratched_gold/Scratched_gold_01_1K_Normal.png"
        );
        let material = new THREE.MeshPhysicalMaterial({
          clearcoat: 1,
          clearcoatRoughness: 0.1,
          metalness: 0.9,
          roughness: 0.5,
          color: 255,
          normalMap: normalMap3,
          normalScale: new THREE.Vector2(0.15, 0.15)
        });
        let mesh = new THREE.Mesh(geometry, material);
        mesh.position.x = -1;
        mesh.position.y = 1;
        group.add(mesh);
        material = new THREE.MeshPhysicalMaterial({
          roughness: 0.5,
          clearcoat: 1,
          clearcoatRoughness: 0.1,
          map: diffuse,
          normalMap
        });
        mesh = new THREE.Mesh(geometry, material);
        mesh.position.x = 1;
        mesh.position.y = 1;
        group.add(mesh);
        material = new THREE.MeshPhysicalMaterial({
          metalness: 0,
          roughness: 0.1,
          clearcoat: 1,
          normalMap: normalMap4,
          clearcoatNormalMap,
          // y scale is negated to compensate for normal map handedness.
          clearcoatNormalScale: new THREE.Vector2(2, -2)
        });
        mesh = new THREE.Mesh(geometry, material);
        mesh.position.x = -1;
        mesh.position.y = -1;
        group.add(mesh);
        material = new THREE.MeshPhysicalMaterial({
          clearcoat: 1,
          metalness: 1,
          color: 16711680,
          normalMap: normalMap2,
          normalScale: new THREE.Vector2(0.15, 0.15),
          clearcoatNormalMap,
          // y scale is negated to compensate for normal map handedness.
          clearcoatNormalScale: new THREE.Vector2(2, -2)
        });
        mesh = new THREE.Mesh(geometry, material);
        mesh.position.x = 1;
        mesh.position.y = -1;
        group.add(mesh);
        scene.background = texture;
        scene.environment = texture;
      });
      particleLight = new THREE.Mesh(
        new THREE.SphereGeometry(0.05, 8, 8),
        new THREE.MeshBasicMaterial({ color: 16777215 })
      );
      scene.add(particleLight);
      particleLight.add(new THREE.PointLight(16777215, 30));
      renderer = new THREE.WebGLRenderer({ antialias: true, canvas });
      renderer.setPixelRatio(window.devicePixelRatio);
      renderer.setSize(window.innerWidth, window.innerHeight);
      renderer.setAnimationLoop(animate);
      renderer.toneMapping = THREE.ACESFilmicToneMapping;
      renderer.toneMappingExposure = 1.25;
      stats = new Stats(renderer);
      const controls = new OrbitControls(camera, renderer.domElement);
      controls.minDistance = 3;
      controls.maxDistance = 30;
      window.addEventListener("resize", onWindowResize);
      needToDispose(renderer, scene, controls);
    }
    function onWindowResize() {
      const width = window.innerWidth;
      const height = window.innerHeight;
      camera.aspect = width / height;
      camera.updateProjectionMatrix();
      renderer.setSize(width, height);
    }
    function animate() {
      render();
      stats.update();
    }
    function render() {
      const timer = Date.now() * 25e-5;
      particleLight.position.x = Math.sin(timer * 7) * 3;
      particleLight.position.y = Math.cos(timer * 5) * 4;
      particleLight.position.z = Math.cos(timer * 3) * 3;
      for (let i = 0; i < group.children.length; i++) {
        const child = group.children[i];
        child.rotation.y += 5e-3;
      }
      renderer.render(scene, camera);
    }
  }
};
export {
  exampleInfo as default
};

import { Loader, TypedArray } from 'three';
/**
 * 官网示例的多端使用封装把版本
 * */
export interface OfficialExampleInfo extends MiniProgramMeta {
  /*** 示例名称（保持和官网一致）*/
  name: string;
  /** main */
  init: (context: LoadContext) => void;
}

export interface LoadContext {
  //为了减少官方代码的改动，实际上等同于 canvas
  window: EventTarget & { innerWidth: number; innerHeight: number; devicePixelRatio: number };
  /** HTMLCanvasElement */
  canvas: any;
  /** https://www.npmjs.com/package/lil-gui */
  GUI: any;
  /**
   * https://www.npmjs.com/package/stats.js
   * 也可以使用其他受支持的版本
   * */
  Stats: any;
  /** 收集需要 dispose 的对象（官方示例没有处理这部分）*/
  needToDispose: (...objs: any[]) => void | ((fromFn: () => any[]) => void);

  /**基于 raq 的通用封装 */
  useFrame(animateFunc: (/** ms */ delta: number) => void): { cancel: () => void };

  /** 显示加载模态框 */
  requestLoading(text?: string): Promise<void>;

  /** 隐藏加载模态框*/
  cancelLoading(): void;

  /** 保存文件的通用封装*/
  saveFile(
    fileName: string,
    data: ArrayBuffer | TypedArray | DataView | string
  ): Promise<string | null>;

  /** 示例使用 DracoDecoder 时的资源路径 */
  DecoderPath: {
    GLTF: string;
    STANDARD: string;
  };

  /** 为资源路径拼上 CDN 前缀 */
  withCDNPrefix(path: string): string;

  /**
   * 在小程序中应使用 import { VideoTexture } from '@minisheep/three-platform-adapter/override/jsm/textures/VideoTexture.js';
   * 正常情况（web） 可直接使用 THREE.VideoTexture
   * */
  getVideoTexture(videoOptions: VideoOptions): Promise<[{ isVideoTexture: true }, video: any]>;

  /**
   * 在小程序中应使用 import { CameraTexture } from '@minisheep/three-platform-adapter/override/jsm/textures/CameraTexture.js';
   * 正常情况（web） 可参考示例 webgl_materials_video_webcam
   * */
  getCameraTexture(): { isVideoTexture: true };

  /** 用于动态修改 info 中的占位符*/
  bindInfoText(template: `$${string}$`, initValue?: string): { value: string };

  /** 分屏控件对应的事件回调 */
  onSlideStart(handle: () => void): void;
  /** 分屏控件对应的事件回调 */
  onSlideEnd(handle: () => void): void;
  /** 分屏控件对应的事件回调 */
  onSlideChange(handle: (offset: number, boxSize: number) => void): void;
}

export type VideoOptions = {
  src: string;
  /** 相当于 HTMLVideoElement 的 naturalWidth (小程序中获取不到)*/
  width: number;
  /** 相当于 HTMLVideoElement 的 naturalHeight (小程序中获取不到)*/
  height: number;
  loop?: boolean;
  autoplay?: boolean;
  muted?: boolean;
};

/** 示例小程序中使用的一些配置 */
export interface MiniProgramMeta {
  /** 用于统计加载相关信息 */
  useLoaders: Loader[];
  /** 通用 info */
  info: TagItem[][];
  /** 特殊 info */
  infoPanel?: {
    left?: [string, string][];
    right?: [string, string][];
  };
  /** 分屏控件配置 */
  needSlider?: {
    /** 方向 */
    direction?: 'horizontal' | 'vertical';
    /** 初始偏移 0-100 */
    initPosition?: number;
  };
  /** 操作摇杆控件 */
  needArrowControls?: boolean;
  /** 默认需要的画布类型 */
  canvasType?: '2d' | 'webgl' | 'webgl2';
  /** 为保持效果一致所需要的画布样式 */
  canvasStyle?: {
    bgColor?: string;
    width?: number | string;
    height?: number | string;
  };
  /** 部分示例需要在加载前进行一些提示 */
  initAfterConfirm?: {
    /**
     * 提示类型
     * @default 'default'
     * */
    type?: 'warning' | 'default';
    text: string[];
  };
}

export interface BaseTag<T extends string> {
  tag: T;
  content: string;
}

export interface ATag extends BaseTag<'a'> {
  link: string;
}

export type TextTag = BaseTag<'text'>;

export type TagItem = TextTag | ATag;

webgl_materials_physical_clearcoat ​

webgl_materials_physical_clearcoat