浏览器Http的413报错

基础代码

import * as THREE from "three";
// 导入轨道控制器
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls";
// 导入动画库
import gsap from "gsap";
// 导入dat.gui
import * as dat from "dat.gui";
import { DRACOLoader } from "three/examples/jsm/loaders/DRACOLoader";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader";
import { RGBELoader } from "three/examples/jsm/loaders/RGBELoader";

const gui = new dat.GUI();
// 1、创建场景
const scene = new THREE.Scene();

// 2、创建相机
const camera = new THREE.PerspectiveCamera(
    75,
    window.innerWidth / window.innerHeight,
    0.1,
    1000
);
camera.aspect = window.innerWidth / window.innerHeight;
//   更新摄像机的投影矩阵
camera.updateProjectionMatrix();

// 设置相机位置
camera.position.set(0, 0, 20);
scene.add(camera);



// 初始化渲染器
const renderer = new THREE.WebGLRenderer();
// 设置渲染的尺寸大小
renderer.setSize(window.innerWidth, window.innerHeight);
// 开启场景中的阴影贴图
renderer.shadowMap.enabled = true;

// 将webgl渲染的canvas内容添加到body
document.body.appendChild(renderer.domElement);

// // 使用渲染器，通过相机将场景渲染进来
// renderer.render(scene, camera);

// 创建轨道控制器
const controls = new OrbitControls(camera, renderer.domElement);
// 设置控制器阻尼，让控制器更有真实效果,必须在动画循环里调用.update()。
controls.enableDamping = true;

// 添加坐标轴辅助器
const axesHelper = new THREE.AxesHelper(5);
scene.add(axesHelper);
// 设置时钟
const clock = new THREE.Clock();
function render() {
    let time = clock.getDelta();
    controls.update();
    renderer.render(scene, camera);
    //   渲染下一帧的时候就会调用render函数
    requestAnimationFrame(render);
}

render();

// 监听画面变化，更新渲染画面
window.addEventListener("resize", () => {
    //   console.log("画面变化了");
    // 更新摄像头
    camera.aspect = window.innerWidth / window.innerHeight;
    //   更新摄像机的投影矩阵
    camera.updateProjectionMatrix();

    //   更新渲染器
    renderer.setSize(window.innerWidth, window.innerHeight);
    //   设置渲染器的像素比
    renderer.setPixelRatio(window.devicePixelRatio);
});

添加环境纹理

// 添加hdr环境纹理
const loader = new RGBELoader();
loader.load("./textures/038.hdr", function (texture) {
    texture.mapping = THREE.EquirectangularReflectionMapping;
    scene.background = texture;
    scene.environment = texture;
});

配置render渲染器

// 初始化渲染器
const renderer = new THREE.WebGLRenderer();
// 设置渲染的尺寸大小
renderer.setSize(window.innerWidth, window.innerHeight);
// 开启场景中的阴影贴图
renderer.shadowMap.enabled = true;
// 物理校正灯
renderer.physicallyCorrectLights = true;
// 修改背景色
renderer.setClearColor(0xcccccc, 1);
// 对应帧缓冲区中的像素相关数据都会被覆盖
renderer.autoClear = false;
// 设置电影渲染模式
renderer.toneMapping = THREE.ACESFilmicToneMapping;
// 让材质可以接受光照
renderer.outputEncoding = THREE.sRGBEncoding;
// 开启接受设置渲染顺序
renderer.sortObjects = true;
// logarithmicDepthBuffer对数深度缓冲区,Three.js_解决谍影锯齿闪烁重影模型的方法
renderer.logarithmicDepthBuffer = true;

加载压缩的glb模型

const gltfLoader = new GLTFLoader();
// 加载压缩的glb模型需要使用这个loader
const dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath("./draco/gltf/");
dracoLoader.setDecoderConfig({ type: "js" });
dracoLoader.preload();
gltfLoader.setDRACOLoader(dracoLoader);
gltfLoader.load("./model/f4.glb", function (gltf) {
    console.log(gltf);
    scene.add(gltf.scene);
})

旋转模型

gltf.scene.rotation.x = Math.PI;

添加水

我们可以看到，模型中的水没有加载进来，这是因为水材质映射了环境贴图，我们把水的材质修改成为基础材质就可以了

gltfLoader.load("./model/f4.glb", function (gltf) {
    gltf.scene.rotation.x = Math.PI;
    gltf.scene.traverse((item) => {
        if (item.material && item.material.name == "Water") {
            console.log(item);
            item.material = new THREE.MeshStandardMaterial({
                color: "skyblue",
                depthWrite: false,
                depthTest: false,
                transparent: true,
                opacity: 0.7,
            });
        }
    })
    scene.add(gltf.scene);
})

添加变形动画

变形实现逻辑，在第一个状态的geometry，缓冲区添加morphAttributes的变化数组数据，然后使用.updateMorphTargets()更新数据，morphTargetInfluences可以通过gsap实现动态变化,即可实现动画。

let params = {
    value0: 0,
};
let stem, petal, stem1, petal1, stem2, petal2;
gltfLoader.load("./model/f4.glb", function (gltf) {
    gltf.scene.rotation.x = Math.PI;
    gltf.scene.traverse((item) => {
        // 水
        if (item.material && item.material.name == "Water") {
            console.log(item);
            item.material = new THREE.MeshStandardMaterial({
                color: "skyblue",
                depthWrite: false,
                depthTest: false,
                transparent: true,
                opacity: 0.7,
            });
        }
        // 茎
        if (item.material && item.material.name == "Stem") {
            stem = item;
        }
        // 花瓣
        if (item.material && item.material.name == "Petal") {
            petal = item;
        }
        gltfLoader.load("./model/f2.glb", (gltf) => {
            gltf.scene.traverse((item) => {
                if (item.material && item.material.name == "Petal") {
                    petal1 = item;
                    if (!petal.geometry.morphAttributes.position) {
                        petal.geometry.morphAttributes.position = [];
                    }
                    petal.geometry.morphAttributes.position[0] =
                        petal1.geometry.attributes.position;

                    petal.updateMorphTargets();
                    petal.morphTargetInfluences[0] = 1;

                    gsap.to(params, {
                        value0: 1,
                        duration: 10,
                        // repeat: -1,
                        delay: 0,
                        onUpdate: function () {
                            petal.morphTargetInfluences[0] = params.value0;
                            stem.morphTargetInfluences[0] = params.value0;
                        },
                    });
                }
                if (item.material && item.material.name == "Stem") {
                    stem1 = item;
                    if (!stem.geometry.morphAttributes.position) {
                        stem.geometry.morphAttributes.position = [];
                    }
                    stem.geometry.morphAttributes.position[0] =
                        stem1.geometry.attributes.position;
                    stem.updateMorphTargets();
                    stem.morphTargetInfluences[0] = 1;
                }
            });
        })

    })
    scene.add(gltf.scene);
})

补充最后一部分动画之后的完整代码

import * as THREE from "three";
// 导入轨道控制器
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls";
// 导入动画库
import gsap from "gsap";
// 导入dat.gui
import * as dat from "dat.gui";
import { DRACOLoader } from "three/examples/jsm/loaders/DRACOLoader";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader";
import { RGBELoader } from "three/examples/jsm/loaders/RGBELoader";

// 目标：点光源

const gui = new dat.GUI();
// 1、创建场景
const scene = new THREE.Scene();

// 2、创建相机
const camera = new THREE.PerspectiveCamera(
  75,
  window.innerWidth / window.innerHeight,
  0.1,
  1000
);
camera.aspect = window.innerWidth / window.innerHeight;
//   更新摄像机的投影矩阵
camera.updateProjectionMatrix();

// 设置相机位置
camera.position.set(0, 0, 20);
scene.add(camera);

// 灯光
// 环境光
// const light = new THREE.AmbientLight(0xffffff, 1); // soft white light
// scene.add(light);

// 添加hdr环境纹理
const loader = new RGBELoader();
loader.load("./textures/038.hdr", function (texture) {
  texture.mapping = THREE.EquirectangularReflectionMapping;
  scene.background = texture;
  scene.environment = texture;
});

let params = {
  value0: 0,
  value1: 0,
};
// 加载压缩的glb模型
const gltfLoader = new GLTFLoader();
const dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath("./draco/gltf/");
dracoLoader.setDecoderConfig({ type: "js" });
dracoLoader.preload();
gltfLoader.setDRACOLoader(dracoLoader);
let mixer;
let stem, petal, stem1, petal1, stem2, petal2;
gltfLoader.load("./model/f4.glb", function (gltf) {
  console.log(gltf);
  gltf.scene.rotation.x = Math.PI;
  gltf.scene.traverse((item) => {
    if (item.material && item.material.name == "Water") {
      console.log(item);
      // item.renderOrder = 9;
      // item.material.blending = THREE.AdditiveBlending;
      // item.scale.set(0.8, 0.8, 0.8);
      // item.material.depthTest = false;

      // // item.material.transparent = false;
      // item.material.depthWrite = true;
      // item.material.side = THREE.DoubleSide;
      // item.material = new THREE.MeshBasicMaterial({
      //   color: "skyblue",
      //   depthWrite: false,
      //   depthTest: false,
      //   transparent: true,
      //   opacity: 0.7,
      // });

      item.material = new THREE.MeshStandardMaterial({
        color: "skyblue",
        depthWrite: false,
        depthTest: false,
        transparent: true,
        opacity: 0.7,
      });
    }
    if (item.material && item.material.name == "Stem") {
      stem = item;
    }

    if (item.material && item.material.name == "Petal") {
      console.log(item);
      petal = item;

      gltfLoader.load("./model/f2.glb", (gltf) => {
        gltf.scene.traverse((item) => {
          if (item.material && item.material.name == "Petal") {
            petal1 = item;
            // console.log(petal1.geometry.attributes.position);
            if (!petal.geometry.morphAttributes.position) {
              petal.geometry.morphAttributes.position = [];
            }
            petal.geometry.morphAttributes.position[0] =
              petal1.geometry.attributes.position;

            console.log(petal.morphTargetInfluences);
            petal.updateMorphTargets();
            petal.morphTargetInfluences[0] = 1;
            console.log(petal.geometry.morphAttributes);

            gsap.to(params, {
              value0: 1,
              duration: 10,
              // repeat: -1,
              delay: 0,
              onUpdate: function () {
                petal.morphTargetInfluences[0] = params.value0;
                stem.morphTargetInfluences[0] = params.value0;
              },
            });
          }
          if (item.material && item.material.name == "Stem") {
            stem1 = item;
            if (!stem.geometry.morphAttributes.position) {
              stem.geometry.morphAttributes.position = [];
            }
            stem.geometry.morphAttributes.position[0] =
              stem1.geometry.attributes.position;
            stem.updateMorphTargets();
            stem.morphTargetInfluences[0] = 1;
          }
        });

        gltfLoader.load("./model/f1.glb", (gltf) => {
          gltf.scene.traverse((item) => {
            if (item.material && item.material.name == "Petal") {
              petal2 = item;

              // console.log(petal1.geometry.attributes.position);
              petal.geometry.morphAttributes.position[1] =
                petal2.geometry.attributes.position;
              console.log(petal.morphTargetInfluences);
              petal.updateMorphTargets();
              petal.morphTargetInfluences[1] = 0;
              console.log(petal.geometry.morphAttributes);

              gsap.to(params, {
                value1: 1,
                duration: 10,
                delay: 10,
                // repeat: -1,
                onUpdate: function () {
                  // console.log(petal.morphTargetInfluences);
                  console.log(stem.morphTargetInfluences);
                  petal.morphTargetInfluences[0] = params.value0;
                  stem.morphTargetInfluences[0] = params.value0;
                  petal.morphTargetInfluences[1] = params.value1;
                  stem.morphTargetInfluences[1] = params.value1;
                },
              });
            }
            if (item.material && item.material.name == "Stem") {
              stem2 = item;

              stem.geometry.morphAttributes.position[1] =
                stem2.geometry.attributes.position;
              stem.updateMorphTargets();
              stem.morphTargetInfluences[1] = 0;
            }
          });
        });
      });
    }
  });
  scene.add(gltf.scene);
});

// 初始化渲染器
const renderer = new THREE.WebGLRenderer({
  logarithmicDepthBuffer: true,
  antialias: true,
});
// 设置渲染的尺寸大小
renderer.setSize(window.innerWidth, window.innerHeight);
// 开启场景中的阴影贴图
renderer.shadowMap.enabled = true;
renderer.physicallyCorrectLights = true;
renderer.setClearColor(0xcccccc, 1);
renderer.autoClear = false;
// 设置电影渲染模式
renderer.toneMapping = THREE.ACESFilmicToneMapping;
renderer.outputEncoding = THREE.sRGBEncoding;
renderer.sortObjects = true;
renderer.logarithmicDepthBuffer = true;

// 将webgl渲染的canvas内容添加到body
document.body.appendChild(renderer.domElement);

// // 使用渲染器，通过相机将场景渲染进来
// renderer.render(scene, camera);

// 创建轨道控制器
const controls = new OrbitControls(camera, renderer.domElement);
// 设置控制器阻尼，让控制器更有真实效果,必须在动画循环里调用.update()。
controls.enableDamping = true;

// 添加坐标轴辅助器
const axesHelper = new THREE.AxesHelper(5);
scene.add(axesHelper);
// 设置时钟
const clock = new THREE.Clock();
function render() {
  let time = clock.getDelta();
  if (mixer) {
    // console.log(mixer);
    mixer.update(time);
  }
  controls.update();

  renderer.render(scene, camera);
  //   渲染下一帧的时候就会调用render函数
  requestAnimationFrame(render);
}

render();

// 监听画面变化，更新渲染画面
window.addEventListener("resize", () => {
  //   console.log("画面变化了");
  // 更新摄像头
  camera.aspect = window.innerWidth / window.innerHeight;
  //   更新摄像机的投影矩阵
  camera.updateProjectionMatrix();

  //   更新渲染器
  renderer.setSize(window.innerWidth, window.innerHeight);
  //   设置渲染器的像素比
  renderer.setPixelRatio(window.devicePixelRatio);
});