webgl_materials_cubemap_dynamic
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。
js
import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
import { RGBELoader } from "three/examples/jsm/loaders/RGBELoader.js";
/** @type {import("@minisheeep/mp-three-examples").OfficialExampleInfo} */
const exampleInfo = {
name: "webgl_materials_cubemap_dynamic",
useLoaders: [RGBELoader],
info: [
[
{
tag: "a",
link: "https://threejs.org",
content: "three.js"
},
{
tag: "text",
content: "webgl - materials - dynamic cube reflection"
}
]
],
init: ({ window, canvas, GUI, Stats, needToDispose, useFrame }) => {
let camera, scene, renderer, stats;
let cube, sphere, torus, material;
let cubeCamera, cubeRenderTarget;
let controls;
init();
function init() {
renderer = new THREE.WebGLRenderer({ antialias: true, canvas });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setAnimationLoop(animate);
renderer.toneMapping = THREE.ACESFilmicToneMapping;
window.addEventListener("resize", onWindowResized);
stats = new Stats(renderer);
camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 1, 1e3);
camera.position.z = 75;
scene = new THREE.Scene();
scene.rotation.y = 0.5;
const rgbeLoader = new RGBELoader().setPath("textures/equirectangular/").load("quarry_01_1k.hdr", function(texture) {
texture.mapping = THREE.EquirectangularReflectionMapping;
scene.background = texture;
scene.environment = texture;
});
cubeRenderTarget = new THREE.WebGLCubeRenderTarget(256);
cubeRenderTarget.texture.type = THREE.HalfFloatType;
cubeCamera = new THREE.CubeCamera(1, 1e3, cubeRenderTarget);
material = new THREE.MeshStandardMaterial({
envMap: cubeRenderTarget.texture,
roughness: 0.05,
metalness: 1
});
const gui = new GUI();
gui.add(material, "roughness", 0, 1);
gui.add(material, "metalness", 0, 1);
gui.add(renderer, "toneMappingExposure", 0, 2).name("exposure");
sphere = new THREE.Mesh(new THREE.IcosahedronGeometry(15, 8), material);
scene.add(sphere);
const material2 = new THREE.MeshStandardMaterial({
roughness: 0.1,
metalness: 0
});
cube = new THREE.Mesh(new THREE.BoxGeometry(15, 15, 15), material2);
scene.add(cube);
torus = new THREE.Mesh(new THREE.TorusKnotGeometry(8, 3, 128, 16), material2);
scene.add(torus);
controls = new OrbitControls(camera, renderer.domElement);
controls.autoRotate = true;
needToDispose(renderer, scene, controls, rgbeLoader);
}
function onWindowResized() {
renderer.setSize(window.innerWidth, window.innerHeight);
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
}
function animate(msTime) {
const time = msTime / 1e3;
cube.position.x = Math.cos(time) * 30;
cube.position.y = Math.sin(time) * 30;
cube.position.z = Math.sin(time) * 30;
cube.rotation.x += 0.02;
cube.rotation.y += 0.03;
torus.position.x = Math.cos(time + 10) * 30;
torus.position.y = Math.sin(time + 10) * 30;
torus.position.z = Math.sin(time + 10) * 30;
torus.rotation.x += 0.02;
torus.rotation.y += 0.03;
cubeCamera.update(renderer, scene);
controls.update();
renderer.render(scene, camera);
stats.update();
}
}
};
export {
exampleInfo as default
};ts
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;