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<!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="Depth of field." />
<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>Depth Of Field</td>
<td><input type="checkbox" data-bind="checked: show" /></td>
</tr>
<tr>
<td>Focal Distance</td>
<td>
<input
type="range"
min="0.0"
max="500.0"
step="1"
data-bind="value: focalDistance, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Delta</td>
<td>
<input
type="range"
min="0.1"
max="2"
step="0.01"
data-bind="value: delta, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Sigma</td>
<td>
<input
type="range"
min="0.5"
max="5"
step="0.01"
data-bind="value: sigma, valueUpdate: 'input'"
/>
</td>
</tr>
<tr>
<td>Step Size</td>
<td>
<input
type="range"
min="0"
max="7"
step="0.01"
data-bind="value: stepSize, 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");
function createModel(url, x, y, height) {
var position = Cesium.Cartesian3.fromDegrees(x, y, height);
viewer.entities.add({
name: url,
position: position,
model: {
uri: url,
},
});
}
var numberOfBalloons = 13;
var lonIncrement = 0.00025;
var initialLon = -122.99875;
var lat = 44.0503706;
var height = 100.0;
var url = "../../SampleData/models/CesiumBalloon/CesiumBalloon.glb";
for (var i = 0; i < numberOfBalloons; ++i) {
var lon = initialLon + i * lonIncrement;
createModel(url, lon, lat, height);
}
var viewModel = {
show: true,
focalDistance: 87,
delta: 1,
sigma: 3.78,
stepSize: 2.46,
};
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);
}
}
if (
!Cesium.PostProcessStageLibrary.isDepthOfFieldSupported(viewer.scene)
) {
window.alert(
"This browser does not support the depth of field post process."
);
}
var depthOfField = viewer.scene.postProcessStages.add(
Cesium.PostProcessStageLibrary.createDepthOfFieldStage()
);
function updatePostProcess() {
depthOfField.enabled = Boolean(viewModel.show);
depthOfField.uniforms.focalDistance = Number(viewModel.focalDistance);
depthOfField.uniforms.delta = Number(viewModel.delta);
depthOfField.uniforms.sigma = Number(viewModel.sigma);
depthOfField.uniforms.stepSize = Number(viewModel.stepSize);
}
updatePostProcess();
var target = Cesium.Cartesian3.fromDegrees(
initialLon + lonIncrement,
lat,
height + 7.5
);
var offset = new Cesium.Cartesian3(
-37.048378684557974,
-24.852967044804245,
4.352023653686047
);
viewer.scene.camera.lookAt(target, offset);
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>