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<template> |
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<div class="model3d-view"> |
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<el-space :gutter="10" class="toolbar"> |
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<el-upload :on-change="handleFileChange" |
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:show-file-list="false" accept=".fbx,.obj,.mtl,.3ds" action="" :auto-upload="false"> |
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<el-button type="primary">打开模型</el-button> |
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</el-upload> |
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<el-upload :on-change="handleTextureUpload" |
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:show-file-list="false" accept=".png,.jpg,.jpeg" action="" :auto-upload="false" |
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list-type="picture"> |
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<el-button>打开贴图</el-button> |
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</el-upload> |
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<el-upload :on-change="handleMtlUpload" |
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:show-file-list="false" accept=".mtl" action="" :auto-upload="false" |
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list-type="picture"> |
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<el-button>打开材质</el-button> |
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</el-upload> |
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<div class="demo-color-block"> |
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<span class="demonstration">材质颜色</span> |
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<el-color-picker v-model="restate.targetColor" /> |
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</div> |
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<!-- 按 1:1 / 1:0.001 比例 --> |
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<div class="demo-color-block"> |
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<span class="demonstration">默认比例</span> |
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<el-radio-group v-model="restate.loadScale"> |
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<el-radio-button label="1" :value="1" /> |
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<el-radio-button label="0.01" :value="0.01" /> |
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<el-radio-button label="0.001" :value="0.001" /> |
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</el-radio-group> |
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</div> |
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<div class="demo-color-block"> |
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<span class="demonstration">物体数:<el-text type="danger">{{ restate.objects }}</el-text></span> |
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<span class="demonstration"> 顶点数:<el-text type="danger">{{ restate.vertices }}</el-text></span> |
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<span class="demonstration"> 三角形数:<el-text type="danger">{{ restate.faces }}</el-text></span> |
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</div> |
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</el-space> |
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<div class="main-content"> |
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<Split class="model3d-content" :direction="'horizontal'"> |
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<SplitArea class="model3d-canvas" :size="70"> |
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<!-- Three.js 渲染画布 --> |
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<div class="canvas-container" ref="canvasContainer"> |
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<canvas ref="canvasRef"></canvas> |
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<div class="canvas-left-toolbar"> |
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<button class="Button" :class="{selected:(restate.mode==='translate')}" title="平移" |
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@mousedown="restate.mode='translate'"> |
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<component :is="renderIcon('element Rank')" /> |
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</button> |
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<button class="Button" :class="{selected:(restate.mode==='rotate')}" title="旋转" |
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@mousedown="restate.mode='rotate'"> |
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<component :is="renderIcon('element RefreshLeft')" /> |
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</button> |
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<button class="Button" :class="{selected:(restate.mode==='scale')}" title="缩放" |
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@mousedown="restate.mode='scale'"> |
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<component :is="renderIcon('element ScaleToOriginal')" /> |
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</button> |
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</div> |
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</div> |
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</SplitArea> |
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<SplitArea class="model3d-gui" :size="30"> |
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<div class="model3d-gui-wrap"> |
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<!-- 右侧面板 --> |
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<div class="gui-toolbar"> |
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<TransformEdit ref="transformEditCtl" /> |
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</div> |
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<div class="gui-panel" ref="guiPanel"></div> |
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</div> |
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</SplitArea> |
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</Split> |
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</div> |
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</div> |
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</template> |
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<script setup lang="ts"> |
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import TransformEdit from '@/components/propertyEdit/TransformEdit.vue' |
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import { ref, onMounted, nextTick, reactive, watch, getCurrentInstance, onUnmounted, onBeforeUnmount } from 'vue' |
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import '@babylonjs/core/Debug/debugLayer' |
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import '@babylonjs/inspector' |
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import { |
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Engine, |
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Scene, |
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ArcRotateCamera, |
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Vector3, |
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HemisphericLight, |
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MeshBuilder, |
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Color4, |
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Camera, |
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GizmoManager, |
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DirectionalLight |
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} from '@babylonjs/core' |
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import { TransformNode } from '@babylonjs/core' |
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import Split from '@/components/split/split.vue' |
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import SplitArea from '@/components/split/split-area.vue' |
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import { renderIcon } from '@/utils/webutils.js' |
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import { GridMaterial } from '@babylonjs/materials' |
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|
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// DOM refs |
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const canvasRef = ref(null) |
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|
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// Three.js 场景相关 |
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let engine: Engine |
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let scene: Scene |
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let camera: ArcRotateCamera |
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let gizmoManager: GizmoManager |
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let currentMesh = null |
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let modelGroup, resizeObserver |
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|
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const restate = reactive({ |
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targetColor: '#ff0000', |
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loadScale: 1, |
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mode: 'translate', |
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objects: 0, |
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vertices: 0, |
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faces: 0 |
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}) |
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|
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// 状态变量 |
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const state = { |
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showAxesHelper: true, |
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showGridHelper: true, |
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camera: { |
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position: { x: 0, y: 5, z: 10 }, |
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rotation: { x: 0, y: 0, z: 0 } |
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} |
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} |
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onMounted(() => { |
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nextTick(() => { |
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initBabylon() |
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|
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const viewerDom = canvasRef.value |
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resizeObserver = new ResizeObserver(handleResize) |
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resizeObserver.observe(viewerDom) |
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handleResize() |
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|
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window['model3dView'] = getCurrentInstance() |
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window['engine'] = engine |
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window['scene'] = scene |
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window['camera'] = camera |
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window['gizmoManager'] = gizmoManager |
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}) |
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}) |
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|
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onBeforeUnmount(() => { |
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cleanupThree() |
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|
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const viewerDom = canvasRef.value |
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if (resizeObserver) { |
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resizeObserver.unobserve(viewerDom) |
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} |
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|
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window['model3dView'] = null |
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window['model3dViewRenderer'] = null |
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}) |
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|
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watch(() => restate.targetColor, (newVal) => { |
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// if (modelGroup) { |
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// modelGroup.traverse((child) => { |
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// if (child.isMesh && child.material?.color) { |
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// child.material.color.set(newVal) |
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// child.material.needsUpdate = true |
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// } |
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// }) |
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// } |
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}) |
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|
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watch(() => restate.mode, (newVal) => { |
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// if (tcontrols) { |
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// tcontrols.setMode(newVal) |
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// } |
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}) |
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|
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function initBabylon() { |
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// 渲染器 |
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engine = new Engine(canvasRef.value, true) |
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scene = new Scene(engine) |
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|
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// 创建辅助线 |
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const ground = MeshBuilder.CreateGround('ground', { width: 25, height: 25 }) |
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ground.material = new GridMaterial('groundMat') |
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ground.material.backFaceCulling = false |
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|
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camera = new ArcRotateCamera('ArcRotateCamera', 1, 0.8, 10, new Vector3(0, 0, 0), scene) |
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// camera.panningInertia = 0 |
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camera.attachControl(true, true, 0) |
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camera.lowerRadiusLimit = 2 //相机缩小半径上限 限制相机距离焦点的距离 |
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camera.upperRadiusLimit = 10 //相机放大半径上限 upperRadiusLimit的值不应小于lowerRadiusLimit，避免出现错误或不起作用。 |
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camera.wheelDeltaPercentage = 0.09 //鼠标滚轮灵敏度 |
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camera.checkCollisions = true // 开启视角和场景物体的碰撞 |
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camera.upperBetaLimit = (Math.PI / 2) * 0.9 // 视角最大beta角度 |
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camera.lowerRadiusLimit = 0.1 // 视角最小距离 |
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camera.upperRadiusLimit = 1000 // 视角最大距离 |
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camera.radius = 1 // 初始化视角距离 |
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camera.setTarget(Vector3.Zero()) // 设置视角中心 |
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|
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// camera.panningSensibility = 1 // 相机对运动和旋转的灵敏度 |
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|
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// 初始化光照 |
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new HemisphericLight('light1', new Vector3(1, 1, 0), scene) |
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const directionalLight = new DirectionalLight( |
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'dirLight', |
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new Vector3(-1, -1, -1), |
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scene |
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) |
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|
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// 初始化 Gizmo |
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gizmoManager = new GizmoManager(scene) |
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gizmoManager.usePointerToAttachGizmos = false |
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|
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// // 创建几何体和材质做测试用 |
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const box = MeshBuilder.CreateBox('box', {}) |
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box.position = new Vector3(1, 2, 5) |
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|
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engine.runRenderLoop(() => { |
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scene.render() |
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}) |
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} |
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|
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/** |
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* 重新加载相机状态到全局状态 |
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*/ |
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function syncCameraState() { |
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if (camera) { |
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state.camera.position.x = camera.position.x |
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state.camera.position.y = camera.position.y |
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state.camera.position.z = camera.position.z |
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state.camera.rotation.x = camera.rotation.x |
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state.camera.rotation.y = camera.rotation.y |
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state.camera.rotation.z = camera.rotation.z |
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} |
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} |
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function handleTextureUpload(file) { |
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|
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} |
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|
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let lastObjfile = undefined |
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|
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function handleMtlUpload(file) { |
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} |
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|
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function addGroupToScene(group) { |
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|
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} |
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|
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function handleFileChange(file) { |
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} |
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|
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function cleaupModel() { |
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} |
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|
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function cleanupThree() { |
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// 移除旧模型 |
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|
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} |
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|
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function handleResize() { |
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if (canvasRef.value) { |
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const width = canvasRef.value.clientWidth |
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const height = canvasRef.value.clientHeight |
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if (engine) { |
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engine.resize() |
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engine.setSize(width, height) |
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} |
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} |
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} |
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|
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</script> |
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<style scoped lang="less"> |
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.model3d-view { |
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display: flex; |
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flex-direction: column; |
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flex-grow: 1; |
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overflow: hidden; |
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|
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.canvas-left-toolbar { |
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position: absolute; |
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left: 5px; |
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top: 5px; |
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width: 32px; |
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background: #eee; |
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text-align: center; |
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|
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button { |
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color: #555; |
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background-color: #ddd; |
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border: 0; |
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margin: 0; |
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padding: 5px 8px; |
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font-size: 12px; |
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text-transform: uppercase; |
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cursor: pointer; |
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outline: none; |
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} |
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|
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button.selected { |
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background-color: #fff; |
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} |
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} |
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|
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.toolbar { |
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padding: 10px; |
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background: #f5f5f5; |
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border-bottom: 1px solid #ccc; |
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} |
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|
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.dialog-container { |
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display: flex; |
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flex-direction: column; |
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height: 100vh; |
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} |
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|
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.main-content { |
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display: flex; |
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flex: 1; |
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overflow: hidden; |
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|
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.model3d-content { |
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height: 100%; |
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display: flex; |
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flex-direction: row; |
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} |
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} |
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|
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.canvas-container { |
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width: 100%; |
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height: 100%; |
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position: relative; |
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overflow: hidden; |
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|
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canvas { |
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width: 100%; |
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height: 100%; |
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touch-action: none; |
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} |
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} |
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|
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.model3d-gui-wrap { |
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border-left: 1px solid #ccc; |
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background: #111; |
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width: 100%; |
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height: 100%; |
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overflow-y: auto; |
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} |
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|
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.gui-panel { |
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:deep(.lil-gui.root) { |
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width: 100%; |
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} |
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} |
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} |
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|
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</style> |
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