3D模型查看器

src/components/LoadingDialog.vue

@@ -0,0 +1,99 @@
+<template>
+  <el-dialog v-model="isShow" @closed="onClosed" append-to-body
+             :close-on-click-modal="false"
+             :close-on-press-escape="false"
+             :show-close="false" class="yvan-loading">
+    <div class="yvan-loading">
+      <el-icon class="is-loading">
+        <Loading/>
+      </el-icon>
+      <div class="yvan-loading-wait">{{ loadingMsg }}</div>
+    </div>
+  </el-dialog>
+</template>
+<script>
+import _ from "lodash";
+import {Loading} from '@element-plus/icons-vue'
+
+export default {
+  props: [
+    '_insId',
+    'msg',
+  ],
+  components: {
+    Loading
+  },
+  data() {
+    return {
+      isShow: false,
+    }
+  },
+
+  mounted() {
+    this.isShow = true
+  },
+
+  computed: {
+    loadingMsg() {
+      const msg = this.$props.msg
+      if (msg) {
+        const msgLocale = msg
+        if (msgLocale) {
+          return msgLocale
+        }
+        return msg
+
+      } else {
+        return '载入中...'
+      }
+    }
+  },
+
+  methods: {
+    onClosed() {
+      const {rootElementList} = system
+
+      console.log(this.$props._insId, rootElementList.map(r => r))
+      _.remove(rootElementList, (item) => item.props._insId === this.$props._insId)
+    },
+  }
+}
+</script>
+<style lang="less">
+.el-dialog.yvan-loading {
+  background: none;
+  box-shadow: none;
+
+  & > .el-dialog__header {
+    padding: 0;
+    display: none;
+  }
+
+  & > .el-dialog__body {
+    background: none;
+    display: flex;
+    flex-direction: column;
+    justify-items: center;
+    align-items: center;
+
+    .yvan-loading {
+      color: #fff;
+      text-align: center;
+      width: 100px;
+      height: 100px;
+      background: #000;
+      border-radius: 10px;
+      padding-top: 10px;
+      box-shadow: 3px 3px 3px rgba(0, 0, 0, .1);
+
+      .is-loading {
+        font-size: 50px;
+      }
+
+      .yvan-loading-wait {
+        font-size: 16px;
+      }
+    }
+  }
+}
+</style>

src/designer/Model3DView.vue

@@ -1,9 +1,21 @@
 <template>
   <div class="model3d-view">
-    <div class="toolbar">
-      <input type="file" @change="handleFileUpload" accept=".fbx,.obj,.mtl" />
-      <span>文件上传</span>
-    </div>
+    <el-space :gutter="10" class="toolbar">
+      <el-upload :on-change="handleFileChange"
+                 :show-file-list="false" accept=".fbx,.obj,.mtl,.3ds" action="" :auto-upload="false">
+        <el-button type="primary">上传文件</el-button>
+      </el-upload>
+      <el-upload :on-change="handleTextureUpload"
+                 :show-file-list="false" accept=".png,.jpg,.jpeg" action="" :auto-upload="false"
+                 list-type="picture">
+        <el-button>上传贴图</el-button>
+      </el-upload>
+      <!-- 按 1:1 / 1:0.001 比例 -->
+      <el-radio-group v-model="restate.loadScale" size="small">
+        <el-radio-button label="1:1" :value="1" />
+        <el-radio-button label="1:0.001" :value="0.001" />
+      </el-radio-group>
+    </el-space>
     <div class="main-content">
       <Split class="model3d-content" :direction="'horizontal'">
         <SplitArea class="model3d-canvas" :size="70">
@@ -19,12 +31,12 @@
   </div>
 </template>
 <script setup>
-import { ref, onMounted, nextTick } from 'vue'
+import { ref, onMounted, nextTick, reactive } from 'vue'
 import * as THREE from 'three'
 import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls'
 import { FBXLoader } from 'three/examples/jsm/loaders/FBXLoader'
 import { OBJLoader } from 'three/examples/jsm/loaders/OBJLoader'
-import { MTLLoader } from 'three/examples/jsm/loaders/MTLLoader'
+import { TDSLoader } from 'three/examples/jsm/loaders/TDSLoader'
 import * as dat from 'three/examples/jsm/libs/lil-gui.module.min.js'
 import Stats from 'three/examples/jsm/libs/stats.module'
 import { TransformControls } from 'three/examples/jsm/controls/TransformControls.js'
@@ -38,8 +50,11 @@ const guiPanel = ref(null)
 // Three.js 场景相关
 let scene, camera, renderer, controls
 let statsControls, axesHelper, gridHelper
-let modelGroup = new THREE.Group()
-let gui, transformControls
+let gui, tcontrols, modelGroup
+
+const restate = reactive({
+  loadScale: 1
+})
 
 // 状态变量
 const state = {
@@ -101,37 +116,30 @@ function initThree() {
   // 光照
   const ambientLight = new THREE.AmbientLight(0xffffff, 0.6)
   scene.add(ambientLight)
-  const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8)
-  directionalLight.position.set(10, 10, 10)
-  scene.add(directionalLight)
+  // const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8)
+  // directionalLight.position.set(10, 10, 10)
+  // scene.add(directionalLight)
 
   // 性能监控
   statsControls = new Stats()
   statsControls.dom.style.position = 'absolute'
   viewerDom.appendChild(statsControls.dom)
 
-  // 转换控制器 TransformControls
-  transformControls = new TransformControls(camera, renderer.domElement)
-  transformControls.attach(modelGroup)
+  animate()
 
-  // 监听控制模式变化事件
-  transformControls.addEventListener('change', () => {
-    // 当变换控件发生变化时触发，用于更新渲染
+  // 转换控制器 TransformControls
+  tcontrols = new TransformControls(camera, renderer.domElement)
+  tcontrols.addEventListener('change', () => {
     renderer.render(scene, camera)
+    reloadState()
   })
-
-  transformControls.addEventListener('dragging-changed', function(event) {
-    // 在拖动开始或结束时禁用或启用轨道控制器
+  tcontrols.addEventListener('dragging-changed', function(event) {
     controls.enabled = !event.value
   })
-
-  // 动画循环
-  function animate() {
-    requestAnimationFrame(animate)
-    renderView()
-  }
-
-  animate()
+  tcontrols.setMode('translate')
+  // tcontrols.size = 1
+  // tcontrols.space = 'local'
+  scene.add(tcontrols.getHelper())
 
   // 创建ResizeObserver实例并传入处理函数
   const resizeObserver = new ResizeObserver(handleResize)
@@ -139,6 +147,11 @@ function initThree() {
   resizeObserver.observe(viewerDom)
 }
 
+// 动画循环
+function animate() {
+  requestAnimationFrame(animate)
+  renderView()
+}
 
 function initGUI() {
   const guiDom = guiPanel.value
@@ -146,6 +159,10 @@ function initGUI() {
   gui = new dat.GUI({ autoPlace: false })
   guiDom.appendChild(gui.domElement)
 
+  gui.add(state, 'mode', ['translate', 'rotate', 'scale']).onChange(function(value) {
+    tcontrols.setMode(value)
+  })
+
   // 显示辅助线
   gui.add(state, 'showAxesHelper').name('显示坐标轴').onChange(val => {
     axesHelper.visible = val
@@ -166,6 +183,7 @@ function initGUI() {
   cameraPosFolder.add(state.camera.position, 'z', -100, 100).step(0.1).listen().onChange(val => {
     camera.position.z = val
   })
+  cameraPosFolder.close()
 
   // Rotation (in radians)
   const cameraRotationFolder = gui.addFolder('摄像机旋转角')
@@ -178,47 +196,47 @@ function initGUI() {
   cameraRotationFolder.add(state.camera.rotation, 'z', -Math.PI, Math.PI).listen().onChange(val => {
     camera.rotation.z = val
   })
+  cameraRotationFolder.close()
 
 
   // Position
   const positionFolder = gui.addFolder('Position')
-  positionFolder.add(state.obj.position, 'x', -10, 10).onChange(val => {
+  positionFolder.add(state.obj.position, 'x', -10, 10).listen().onChange(val => {
     modelGroup.position.x = val
   })
-  positionFolder.add(state.obj.position, 'y', -10, 10).onChange(val => {
+  positionFolder.add(state.obj.position, 'y', -10, 10).listen().onChange(val => {
     modelGroup.position.y = val
   })
-  positionFolder.add(state.obj.position, 'z', -10, 10).onChange(val => {
+  positionFolder.add(state.obj.position, 'z', -10, 10).listen().onChange(val => {
     modelGroup.position.z = val
   })
+  positionFolder.close()
 
   // Rotation (in radians)
   const rotationFolder = gui.addFolder('Rotation')
-  rotationFolder.add(state.obj.rotation, 'x', -Math.PI, Math.PI).onChange(val => {
+  rotationFolder.add(state.obj.rotation, 'x', -Math.PI, Math.PI).listen().onChange(val => {
     modelGroup.rotation.x = val
   })
-  rotationFolder.add(state.obj.rotation, 'y', -Math.PI, Math.PI).onChange(val => {
+  rotationFolder.add(state.obj.rotation, 'y', -Math.PI, Math.PI).listen().onChange(val => {
     modelGroup.rotation.y = val
   })
-  rotationFolder.add(state.obj.rotation, 'z', -Math.PI, Math.PI).onChange(val => {
+  rotationFolder.add(state.obj.rotation, 'z', -Math.PI, Math.PI).listen().onChange(val => {
     modelGroup.rotation.z = val
   })
+  rotationFolder.close()
 
   // Scale
   const scaleFolder = gui.addFolder('Scale')
-  scaleFolder.add(state.obj.scale, 'x', 0.001, 10).onChange(val => {
+  scaleFolder.add(state.obj.scale, 'x', 0.001, 10).listen().onChange(val => {
     modelGroup.scale.x = val
   })
-  scaleFolder.add(state.obj.scale, 'y', 0.001, 10).onChange(val => {
+  scaleFolder.add(state.obj.scale, 'y', 0.001, 10).listen().onChange(val => {
     modelGroup.scale.y = val
   })
-  scaleFolder.add(state.obj.scale, 'z', 0.001, 10).onChange(val => {
+  scaleFolder.add(state.obj.scale, 'z', 0.001, 10).listen().onChange(val => {
     modelGroup.scale.z = val
   })
-
-  gui.add(state, 'mode', ['translate', 'rotate', 'scale']).onChange(function(value) {
-    transformControls.setMode(value)
-  })
+  scaleFolder.close()
 
   // 相机位置
   // const cameraFolder = gui.addFolder('相机位置')
@@ -284,35 +302,54 @@ function initMode3DCamera() {
   //设置相机位置
   // cameraNew.position.set(4, 2, -3);
   // cameraNew.position.set(30, 30, 30)
+  cameraNew.position.set(5, 5, 5)
   // 2.4,30,1.5;
-  cameraNew.position.set(2.4, 20, 1.5)
+  // cameraNew.position.set(2.4, 20, 1.5)
   //设置相机方向
-  // cameraNew.lookAt(0, 0, 0)
+  cameraNew.lookAt(0, 0, 0)
   // -1.57,0,1.57
-  cameraNew.rotation.set(-1.57, 0, 1.57)
+  // cameraNew.rotation.set(-1.57, 0, 1.57)
 
   camera = cameraNew
   scene.add(camera)
 
-  const controlsNew = new OrbitControls(
-    camera,
-    renderer?.domElement
-  )
+  const controlsNew = new OrbitControls(camera, viewerDom)
   controlsNew.mouseButtons = { LEFT: THREE.MOUSE.PAN, RIGHT: THREE.MOUSE.ROTATE } // 鼠标中键平移
   controlsNew.enableDamping = false
   controlsNew.screenSpacePanning = false // 定义平移时如何平移相机的位置 控制不上下移动
   controlsNew.minDistance = 2
   controls = controlsNew
+  controls.update()
 
   camera.updateProjectionMatrix()
 
-  state.camera.position.x = camera.position.x
-  state.camera.position.y = camera.position.y
-  state.camera.position.z = camera.position.z
+  reloadState()
+}
 
-  state.camera.rotation.x = camera.rotation.x
-  state.camera.rotation.y = camera.rotation.y
-  state.camera.rotation.z = camera.rotation.z
+function reloadState() {
+  if (camera) {
+    state.camera.position.x = camera.position.x
+    state.camera.position.y = camera.position.y
+    state.camera.position.z = camera.position.z
+
+    state.camera.rotation.x = camera.rotation.x
+    state.camera.rotation.y = camera.rotation.y
+    state.camera.rotation.z = camera.rotation.z
+  }
+  if (modelGroup) {
+    state.obj.position.x = modelGroup.position.x
+    state.obj.position.y = modelGroup.position.y
+    state.obj.position.z = modelGroup.position.z
+
+    state.obj.rotation.x = modelGroup.rotation.x
+    state.obj.rotation.y = modelGroup.rotation.y
+    state.obj.rotation.z = modelGroup.rotation.z
+
+    state.obj.scale.x = modelGroup.scale.x
+    state.obj.scale.y = modelGroup.scale.y
+    state.obj.scale.z = modelGroup.scale.z
+    console.log('state.obj', state.obj)
+  }
 }
 
 function renderView() {
@@ -331,45 +368,127 @@ function renderView() {
   }
 }
 
+function handleTextureUpload(file) {
+  console.log('file', file)
+  if (!file) return
+
+  file = file.raw
+
+  const fileName = file.name.toLowerCase()
+  const reader = new FileReader()
+  reader.onerror = (error) => {
+    system.showErrorDialog('加载文件失败', error.toString())
+    system.clearLoading()
+  }
+
+  if (fileName.endsWith('.png') || fileName.endsWith('.jpg') || fileName.endsWith('.jpeg')) {
+    reader.onload = () => {
+      // const textureLoader = new THREE.TextureLoader()
+      // const texture = textureLoader.load(reader.result)
+      // tcontrols.setTexture(texture)
+      // system.clearLoading()
+      const texture = new THREE.TextureLoader().load(reader.result)
+
+      // 假设模型的所有网格都应用相同的材质
+      modelGroup.traverse(function(child) {
+        if (child.isMesh) {
+          child.material.map = texture
+          child.material.needsUpdate = true
+        }
+      })
+    }
+    reader.readAsDataURL(file)
+  } else {
+    alert('不支持的文件类型！')
+  }
+}
 
-function handleFileUpload(event) {
-  const file = event.target.files[0]
+function handleFileChange(file) {
+  console.log('file', file)
   if (!file) return
 
+  file = file.raw
+
   // 移除旧模型
-  if (modelGroup.children.length > 0) {
-    modelGroup.children.forEach(child => modelGroup.remove(child))
+  if (modelGroup) {
+    scene.remove(modelGroup)
   }
 
   const fileName = file.name.toLowerCase()
   const reader = new FileReader()
+  reader.onerror = (error) => {
+    system.showErrorDialog('加载文件失败', error.toString())
+    system.clearLoading()
+  }
 
   if (fileName.endsWith('.fbx')) {
-    reader.readAsArrayBuffer(file)
+    system.showLoading()
     reader.onload = () => {
       const loader = new FBXLoader()
-      const content = loader.parse(reader.result, '')
-      modelGroup.add(content)
+      const arrayBuffer = reader.result
+      const content = loader.parse(arrayBuffer, '')
+      modelGroup = content
+      if (restate.loadScale) {
+        modelGroup.scale.set(restate.loadScale, restate.loadScale, restate.loadScale)
+        state.obj.scale.x = modelGroup.scale.x
+        state.obj.scale.y = modelGroup.scale.y
+        state.obj.scale.z = modelGroup.scale.z
+      }
       scene.add(modelGroup)
+      tcontrols.attach(modelGroup)
+
+      controls.target.copy(modelGroup.position)
+      controls.update()
+
+      system.clearLoading()
     }
+    reader.readAsArrayBuffer(file)
+
   } else if (fileName.endsWith('.obj')) {
     reader.readAsText(file)
     reader.onload = () => {
       const loader = new OBJLoader()
-      const content = loader.parse(reader.result)
-      modelGroup.add(content)
+      //@ts-ignore
+      modelGroup = loader.parse(reader.result)
+      if (restate.loadScale) {
+        modelGroup.scale.set(restate.loadScale, restate.loadScale, restate.loadScale)
+        state.obj.scale.x = modelGroup.scale.x
+        state.obj.scale.y = modelGroup.scale.y
+        state.obj.scale.z = modelGroup.scale.z
+      }
+      scene.add(modelGroup)
+      tcontrols.attach(modelGroup)
+
+      system.clearLoading()
+    }
+
+  } else if (fileName.endsWith('.3ds')) {
+    reader.onload = () => {
+      const loader = new TDSLoader()
+      const arrayBuffer = reader.result
+      //@ts-ignore
+      const content = loader.parse(arrayBuffer, '')
+      modelGroup = content
+      if (restate.loadScale) {
+        modelGroup.scale.set(restate.loadScale, restate.loadScale, restate.loadScale)
+        state.obj.scale.x = modelGroup.scale.x
+        state.obj.scale.y = modelGroup.scale.y
+        state.obj.scale.z = modelGroup.scale.z
+      }
       scene.add(modelGroup)
+      tcontrols.attach(modelGroup)
+
+      system.clearLoading()
     }
-  } else if (fileName.endsWith('.mtl')) {
-    alert('需要同时上传 .obj 和 .mtl 文件，请先实现多文件上传处理逻辑。')
+    reader.readAsArrayBuffer(file)
+
   } else {
     alert('不支持的文件类型！')
   }
-
-  // modelGroup.position.set()
-  // modelGroup.rotation.set(0, 0, 0)
-  // modelGroup.scale.set(1, 1, 1)
 }
+
+window['state'] = state
+
 </script>
 <style scoped lang="less">
 .model3d-view {
@@ -378,23 +497,24 @@ function handleFileUpload(event) {
   flex-grow: 1;
   overflow: hidden;
 
+  .toolbar {
+    padding: 10px;
+    background: #f5f5f5;
+    border-bottom: 1px solid #ccc;
+  }
+
   .dialog-container {
     display: flex;
     flex-direction: column;
     height: 100vh;
   }
 
-  .toolbar {
-    padding: 10px;
-    background-color: #f0f0f0;
-    border-bottom: 1px solid #ccc;
-  }
-
   .main-content {
     display: flex;
     flex: 1;
     overflow: hidden;
-    .model3d-content{
+
+    .model3d-content {
       height: 100%;
       display: flex;
       flex-direction: row;
@@ -403,7 +523,7 @@ function handleFileUpload(event) {
 
   .canvas-container {
     width: 100%;
-    height:100%;
+    height: 100%;
     position: relative;
   }
 
@@ -411,9 +531,10 @@ function handleFileUpload(event) {
     border-left: 1px solid #ccc;
     background: #111;
     width: 100%;
-    height:100%;
+    height: 100%;
     overflow-y: auto;
-    :deep(.lil-gui.root){
+
+    :deep(.lil-gui.root) {
       width: 100%;
     }
   }

src/runtime/System.ts

@@ -9,6 +9,7 @@ import { QuestionFilled } from '@element-plus/icons-vue'
 import { renderIcon } from '@/utils/webutils.ts'
 import type { showDialogOption } from '@/SystemOption'
 import ShowDialogWrap from '@/components/ShowDialogWrap.vue'
+import LoadingDialog from '@/components/LoadingDialog.vue'
 
 export default class System {
   _ = _
@@ -227,6 +228,42 @@ export default class System {
       })
     })
   }
+
+  globalLoadingHandle = null // "正在载入..." 对话框
+
+  /**
+   * 全局 “正在载入...” 对话框
+   */
+  public showLoading(msg?: string): void {
+    if (this.globalLoadingHandle) {
+      // 存在 "正在载入..." 对话框
+      this.clearLoading()
+    }
+
+    const _insId = _.uniqueId('_dlg')
+
+    system.rootElementList.push({
+      cmp: markRaw(LoadingDialog),
+      props: {
+        _insId: _insId,
+        msg: msg
+      }
+    })
+
+    this.globalLoadingHandle = () => {
+      _.remove(system.rootElementList, (item: any) => item.props._insId === _insId)
+    }
+  }
+
+  /**
+   * 关闭 “正在载入...” 对话框
+   */
+  public clearLoading(): void {
+    if (typeof this.globalLoadingHandle === 'function') {
+      this.globalLoadingHandle()
+    }
+    this.globalLoadingHandle = null
+  }
 }
 
 export interface ShowDialogOption {