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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
/>
<meta name="description" content="Lens Flare." />
<meta
name="cesium-sandcastle-labels"
content="Showcases, Post Processing"
/>
<title>Cesium Demo</title>
<script type="text/javascript" src="../Sandcastle-header.js"></script>
<script
type="text/javascript"
src="../../../Build/CesiumUnminified/Cesium.js"
nomodule
></script>
<script type="module" src="../load-cesium-es6.js"></script>
</head>
<body
class="sandcastle-loading"
data-sandcastle-bucket="bucket-requirejs.html"
>
<style>
@import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar">
<table>
<tbody>
<tr>
<td>Lens Flare</td>
<td><input type="checkbox" data-bind="checked: show" /></td>
</tr>
<tr>
<td>Intensity</td>
<td>
<input
type="range"
min="0"
max="10"
step="0.01"
data-bind="value: intensity, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Distortion</td>
<td>
<input
type="range"
min="1"
max="20"
step="0.01"
data-bind="value: distortion, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Dispersion</td>
<td>
<input
type="range"
min="0"
max="1"
step="0.01"
data-bind="value: dispersion, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Halo Width</td>
<td>
<input
type="range"
min="0"
max="1"
step="0.01"
data-bind="value: haloWidth, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Dirt Amount</td>
<td>
<input
type="range"
min="0"
max="1"
step="0.01"
data-bind="value: dirtAmount, valueUpdate: 'input'"
/>
</td>
</tr>
</tbody>
</table>
</div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
var viewer = new Cesium.Viewer("cesiumContainer");
var viewModel = {
show: true,
intensity: 2.0,
distortion: 10.0,
dispersion: 0.4,
haloWidth: 0.4,
dirtAmount: 0.4,
};
Cesium.knockout.track(viewModel);
var toolbar = document.getElementById("toolbar");
Cesium.knockout.applyBindings(viewModel, toolbar);
for (var name in viewModel) {
if (viewModel.hasOwnProperty(name)) {
Cesium.knockout
.getObservable(viewModel, name)
.subscribe(updatePostProcess);
}
}
var lensFlare = viewer.scene.postProcessStages.add(
Cesium.PostProcessStageLibrary.createLensFlareStage()
);
function updatePostProcess() {
lensFlare.enabled = Boolean(viewModel.show);
lensFlare.uniforms.intensity = Number(viewModel.intensity);
lensFlare.uniforms.distortion = Number(viewModel.distortion);
lensFlare.uniforms.ghostDispersal = Number(viewModel.dispersion);
lensFlare.uniforms.haloWidth = Number(viewModel.haloWidth);
lensFlare.uniforms.dirtAmount = Number(viewModel.dirtAmount);
lensFlare.uniforms.earthRadius = Cesium.Ellipsoid.WGS84.maximumRadius;
}
updatePostProcess();
var camera = viewer.scene.camera;
camera.position = new Cesium.Cartesian3(
40010447.97500168,
56238683.46406788,
20776576.752223067
);
camera.direction = new Cesium.Cartesian3(
-0.5549701431494752,
-0.7801872010801355,
-0.2886452346452218
);
camera.up = new Cesium.Cartesian3(
-0.3016252360948521,
-0.13464820558887716,
0.9438707950150912
);
camera.right = Cesium.Cartesian3.cross(
camera.direction,
camera.up,
new Cesium.Cartesian3()
);
viewer.clock.currentTime = new Cesium.JulianDate(
2458047,
27399.860215000022
);
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>