Three.js 代码云效果 | 三维可视化 / AI 提示词 AI 提示词使用 Three.js 的 ShaderMaterial 创建代码云效果通过多个代码纹理的随机切换和下落动画实现代码雨的视觉效果。️ 效果预览 案例演示立即体验效果拆解效果实现方式代码纹理加载多个代码图片作为纹理随机切换在着色器中根据随机值选择不同纹理下落动画在渲染循环中更新代码块位置相机跟随代码块始终面向相机循环效果代码块落到底部后重新回到顶部随机更新定期更新随机值改变纹理选择核心技术点1. 着色器材质创建functioninitMaterial(){letloadernewTHREE.TextureLoader()returnnewTHREE.ShaderMaterial({uniforms:{texture1:{value:loader.load(FILE_HOSTapplication/codeCloud/1.png)},texture2:{value:loader.load(FILE_HOSTapplication/codeCloud/2.png)},texture3:{value:loader.load(FILE_HOSTapplication/codeCloud/3.png)},texture4:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/4.png)},texture5:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/5.png)},texture6:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/6.png)},texture7:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/7.png)},texture8:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/8.png)},texture9:{value:loader.load(FILE_HOST/threeExamples/application/codeCloud/9.png)},random:{value:Math.random()}},vertexShader:varying vec2 vUv; void main() { vUv uv; gl_Position projectionMatrix * modelViewMatrix * vec4(position, 1.0); },fragmentShader:varying vec2 vUv; uniform sampler2D texture1; uniform sampler2D texture2; uniform sampler2D texture3; uniform sampler2D texture4; uniform sampler2D texture5; uniform sampler2D texture6; uniform sampler2D texture7; uniform sampler2D texture8; uniform sampler2D texture9; uniform float random; void main() { float selfRandom vUv.y - fract(vUv.y); float k abs(sin(selfRandom * random))*10.0; if(k 1.0) { gl_FragColor texture2D( texture1, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 2.0) { gl_FragColor texture2D( texture2, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 3.0) { gl_FragColor texture2D( texture3, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 4.0) { gl_FragColor texture2D( texture4, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 5.0) { gl_FragColor texture2D( texture5, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 6.0) { gl_FragColor texture2D( texture6, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 7.0) { gl_FragColor texture2D( texture7, vec2(fract(vUv.x), fract(vUv.y))); } else if(k 8.0) { gl_FragColor texture2D( texture8, vec2(fract(vUv.x), fract(vUv.y))); } else { gl_FragColor texture2D( texture9, vec2(fract(vUv.x), fract(vUv.y))); } },depthWrite:false,transparent:true});}2. 代码云创建cloudnewTHREE.Group()scene.add(cloud)shader_materialinitMaterial()letwidth128,height128for(vari0;i1000;i){varposnewTHREE.Vector3(Math.random()*range-range/2,Math.random()*range-range/2,Math.random()*range-range/2)pos.vX((Math.random()-0.5)/3)/10pos.vY(0.05Math.random()*0.1)/5letgeometrynewTHREE.PlaneGeometry(4,4);letsMath.floor(Math.random()*1000)1geometry.attributes.uv.arraygeometry.attributes.uv.array.map(ees)varplanenewTHREE.Mesh(geometry,shader_material);plane.position.copy(pos)plane.userData.pospos cloud.add(plane)}3. 随机值更新setInterval((){if(cloud){cloud.children.map(plane{plane.material.uniforms.random.valueMath.random()})}},100)4. 动画更新functionsnowanimate(){if(cloud){cloud.children.map(plane{plane.rotation.ycamera.rotation.yletposplane.userData.pos plane.position.ypos.vYif(plane.position.yrange/2)plane.position.y-range/2})}}调试技巧代码块数量调整循环次数控制代码块密度下落速度修改vY的值调整下落速度纹理切换调整random的更新频率改变纹理切换速度代码块大小调整PlaneGeometry的尺寸改变代码块大小扩展思路颜色变化为不同代码块添加不同的颜色交互效果鼠标悬停高亮显示代码块音频响应根据音频节奏改变下落速度3D效果添加旋转和透视效果代码高亮实现语法高亮效果搜索功能添加搜索特定代码的功能