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Commit 0cd7e3aa by jlc
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update：雨案例代码的修改

parent caf237a8
Showing with 57 additions and 52 deletions
src/examples/weather/rain/rain-function.js
export function addRain() { export function addRain(viewer) {
const script = document.createElement('script'); viewer.scene.postProcessStages.add(new Cesium.PostProcessStage({
script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js'; fragmentShader: `
script.onload = () => { uniform sampler2D colorTexture;
window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE' varying vec2 v_textureCoordinates;
uniform float tiltAngle;
const viewer = new window.Cesium.Viewer('cesiumContainer', { uniform float rainSize;
infoBox: false, uniform float rainSpeed;
}); float hash(float x) {
return fract(sin(x * 133.3) * 13.13);
viewer.scene.postProcessStages.add(new Cesium.PostProcessStage({ }
fragmentShader: ` varying vec4 fragColor;
uniform sampler2D colorTexture; void main(void) {
varying vec2 v_textureCoordinates; float time = czm_frameNumber / rainSpeed;
uniform float tiltAngle; vec2 resolution = czm_viewport.zw;
uniform float rainSize; vec2 uv = (gl_FragCoord.xy * 2. - resolution.xy) / min(resolution.x, resolution.y);
uniform float rainSpeed; vec3 c = vec3(.6, .7, .8);
float hash(float x) { float a = tiltAngle;
return fract(sin(x * 133.3) * 13.13); float si = sin(a), co = cos(a);
} uv *= mat2(co, -si, si, co);
varying vec4 fragColor; uv *= length(uv + vec2(0, 4.9)) * rainSize + 1.;
void main(void) { float v = 1. - sin(hash(floor(uv.x * 100.)) * 2.);
float time = czm_frameNumber / rainSpeed; float b = clamp(abs(sin(20. * time * v + uv.y * (5. / (2. + v)))) - .95, 0., 1.) * 20.;
vec2 resolution = czm_viewport.zw; c *= v * b;
vec2 uv = (gl_FragCoord.xy * 2. - resolution.xy) / min(resolution.x, resolution.y); gl_FragColor = mix(texture2D(colorTexture, v_textureCoordinates), vec4(c, 1.0), 0.5);
vec3 c = vec3(.6, .7, .8); }
float a = tiltAngle; `,
float si = sin(a), co = cos(a); uniforms: {
uv *= mat2(co, -si, si, co); tiltAngle: -0.2, //倾斜角度
uv *= length(uv + vec2(0, 4.9)) * rainSize + 1.; rainSize: 0.8, // 雨大小
float v = 1. - sin(hash(floor(uv.x * 100.)) * 2.); rainSpeed: 200.0, // 雨速
float b = clamp(abs(sin(20. * time * v + uv.y * (5. / (2. + v)))) - .95, 0., 1.) * 20.; },
c *= v * b; }));
gl_FragColor = mix(texture2D(colorTexture, v_textureCoordinates), vec4(c, 1.0), 0.5);
}
`,
uniforms: {
tiltAngle: -0.2, //倾斜角度
rainSize: 0.8, // 雨大小
rainSpeed: 200.0, // 雨速
},
}));
};
document.head.appendChild(script);
const link = document.createElement('link');
link.rel = 'stylesheet';
link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
document.head.appendChild(link);
} }
src/examples/weather/rain/rain.vue
<template> <template>
<div id="cesiumContainer" class="cesium-container"></div> <div id="cesiumContainer" class="cesium-container"></div>
</template> </template>
<script setup> <script setup>
import { onMounted } from 'vue'; import { onMounted } from 'vue';
import { addRain } from './function'; import { addRain } from './function';
let viewer;
onMounted(() => { onMounted(() => {
addRain() const script = document.createElement('script');
script.src = 'https://cesium.com/downloads/cesiumjs/releases/1.99/Build/Cesium/Cesium.js';
script.onload = () => {
window.Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3Njg4ZWU5Yi1iZDhiLTRhYmUtOTRiYS04YjM5NmUwNjVmMDMiLCJpZCI6MjI3MzQ3LCJpYXQiOjE3MjA1MjA4Mjh9.E5XW4LnwgfVAaBC-znaYr61m4yK0-j2qEQhi9qwFFPE'
viewer = new window.Cesium.Viewer('cesiumContainer', {
infoBox: false,
});
addRain(viewer)
};
document.head.appendChild(script);
const link = document.createElement('link');
link.rel = 'stylesheet';
link.href = 'https://cesium.com/downloads/cesiumjs/releases/1.119/Build/Cesium/Widgets/widgets.css';
document.head.appendChild(link);
}); });
</script> </script>
<style> <style>
.cesium-container { .cesium-container {
width: 100%; width: 100%;
height: 100vh; height: 100vh;
} }
</style> </style>
\ No newline at end of file
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