新增一个led shader

src/pages/pointShader/pointShader.vue

@@ -8,17 +8,22 @@
       crossorigin="anonymous"
     ></video>
     <canvas id="canvas"></canvas>
-    <button @click="handleClick">播放</button>
+    <div class="play-button" v-show="!isPlaying" @click="handleClick">
+      <i class="play-icon"></i>
+    </div>
   </div>
 </template>
 
 <script setup lang="ts">
 import * as THREE from "three";
-import { onMounted, onUnmounted } from "vue";
+import { onMounted, onUnmounted, ref } from "vue";
+
+const isPlaying = ref(false);
 
 const handleClick = () => {
   const video = document.getElementById("video") as HTMLVideoElement;
   video.play();
+  isPlaying.value = true;
 };
 
 // 创建场景和相机
@@ -76,7 +81,7 @@ onMounted(async () => {
               vec3 pos = position;
               
               // 基于位置和时间生成随机值
-              float rand = random(pos.xy) * 2.0 - 1.0;
+              float rand = random(pos.xy) * 1.01 - 0.01;
               vRandom = rand;
               
               // 计算打散效果
@@ -114,26 +119,46 @@ onMounted(async () => {
           varying float vRandom;
           uniform float time;
 
+          // 颜色调整辅助函数
+          vec3 adjustColor(vec3 color) {
+              // 增加对比度
+              vec3 contrast = (color - 0.5) * 1.4 + 0.5;
+              
+              // 计算亮度
+              float luminance = dot(contrast, vec3(0.299, 0.587, 0.114));
+              
+              // 增加饱和度
+              vec3 saturated = mix(vec3(luminance), contrast, 1.3);
+              
+              // 稍微压暗高光
+              saturated = pow(saturated, vec3(1.1));
+              
+              return saturated;
+          }
+
           void main() {
-              // 减小马赛克大小
+              // 马赛克大小
               float mosaicSize = 1000.0;
               vec2 mosaicUv = floor(vUv * mosaicSize) / mosaicSize;
               
               // 减小抖动效果
-              float jitter = sin(time * 2.0 + vRandom * 6.28) * 0.000001;
+              float jitter = sin(time * 2.0 + vRandom * 1.28) * 0.001;
               mosaicUv += vec2(jitter);
 
               vec4 texColor = texture2D(mainTexture, mosaicUv);
               
+              // 调整颜色
+              vec3 adjustedColor = adjustColor(texColor.rgb);
+              
               // 调整扭曲和淡出效果
-              float distortionFactor = 1.0 - vDist * 0.05;
+              float distortionFactor = 1.0 - vDist * 0.005;
-              float alpha = 0.9 + 0.1 * sin(time * 2.0 + vRandom * 6.28);
+              float alpha = 0.99 + 0.01 * sin(time * 2.0 + vRandom * 6.28);
               
               // 边缘淡出效果
               float edgeFade = 1.0 - length(gl_PointCoord - vec2(0.5)) * 2.0;
               edgeFade = smoothstep(0.0, 0.5, edgeFade);
 
-              gl_FragColor = vec4(texColor.rgb * distortionFactor, texColor.a * alpha * edgeFade);
+              gl_FragColor = vec4(adjustedColor, texColor.a * alpha * edgeFade);
           }`,
     uniforms: {
       mainTexture: { value: videoTexture },
@@ -185,6 +210,16 @@ onMounted(async () => {
 
     renderer.setSize(width, height);
   });
+
+  // 监听视频暂停事件
+  video.addEventListener("pause", () => {
+    isPlaying.value = false;
+  });
+
+  // 监听视频播放事件
+  video.addEventListener("play", () => {
+    isPlaying.value = true;
+  });
 });
 
 // 组件卸载时清理
@@ -202,4 +237,34 @@ canvas {
   height: 100vh;
   display: block;
 }
+
+.play-button {
+  position: fixed;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  width: 80px;
+  height: 80px;
+  background: rgba(0, 0, 0, 0.6);
+  border-radius: 50%;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: all 0.3s;
+}
+
+.play-button:hover {
+  background: rgba(0, 0, 0, 0.8);
+  transform: translate(-50%, -50%) scale(1.1);
+}
+
+.play-icon {
+  width: 0;
+  height: 0;
+  border-style: solid;
+  border-width: 20px 0 20px 30px;
+  border-color: transparent transparent transparent #ffffff;
+  margin-left: 8px;
+}
 </style>