<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>蛟龙号海底探索</title> <style> body { margin: 0; } canvas { display: block; } </style> </head> <body> <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r146/three.min.js"></script> <script> // 场景、相机、渲染器 const scene = new THREE.Scene(); const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight


这段代码创建了一个简单的3D场景,模拟了蛟龙号在海底的移动。以下是代码的主要部分及其功能: 1. 场景、相机、渲染器: - `THREE.Scene()` 创建了一个3D场景。 - `THREE.PerspectiveCamera()` 创建了一个透视相机,视角为75度,宽高比为窗口的宽高比,近裁剪面为0.1,远裁剪面为1000。 - `THREE.WebGLRenderer()` 创建了一个WebGL渲染器,并将其大小设置为窗口的大小。 2. 海底环境: - 使用 `THREE.TextureLoader().load()` 加载了一个海底纹理。 - 创建了一个平面几何体 `THREE.PlaneGeometry()` 作为海底,并将其旋转90度以水平放置。 - 使用 `THREE.MeshBasicMaterial()` 创建了一个材质,并将其应用到海底平面上。 3. 蛟龙号模型: - 使用 `THREE.BoxGeometry()` 创建了一个立方体几何体作为蛟龙号的简化模型。 - 使用 `THREE.MeshPhongMaterial()` 创建了一个材质,并将其应用到立方体上。 - 将蛟龙号模型放置在场景中,并设置其初始位置。 4. 灯光: - 使用 `THREE.DirectionalLight()` 创建了一个方向光,并将其放置在场景中。 5. 相机位置: - 设置相机的位置,使其能够看到整个场景。 6. 动画循环: - 使用 `requestAnimationFrame()` 创建一个动画循环。 - 在每一帧中,蛟龙号模型沿x轴移动,当超出一定范围时重置位置。 - 使用 `renderer.render()` 渲染场景。 7. 窗口大小调整: - 监听窗口大小调整事件,调整相机和渲染器的大小以适应新的窗口尺寸。 额外需要注意的逻辑点: 1. 纹理加载:确保纹理图片的URL是正确的,并且图片能够正常加载。如果图片加载失败,可能会导致场景显示异常。 2. 动画性能:在动画循环中,尽量减少不必要的计算和渲染操作,以提高性能。 3. 模型复杂度:当前使用的是简单的立方体作为蛟龙号模型,如果需要更复杂的模型,可以考虑使用 `THREE.GLTFLoader()` 加载外部3D模型文件。 [2025-02-22 14:23:57 | AI写代码神器 | 506点数解答]
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